/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 interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/locks/test_locks_10.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:00:23,853 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:00:23,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:00:23,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:00:23,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:00:23,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:00:23,895 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:00:23,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:00:23,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:00:23,900 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:00:23,901 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:00:23,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:00:23,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:00:23,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:00:23,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:00:23,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:00:23,908 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:00:23,909 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:00:23,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:00:23,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:00:23,915 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:00:23,916 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:00:23,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:00:23,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:00:23,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:00:23,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:00:23,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:00:23,923 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:00:23,923 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:00:23,924 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:00:23,924 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:00:23,925 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:00:23,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:00:23,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:00:23,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:00:23,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:00:23,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:00:23,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:00:23,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:00:23,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:00:23,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:00:23,932 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 16:00:23,958 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:00:23,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:00:23,960 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:00:23,960 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:00:23,960 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:00:23,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:00:23,961 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:00:23,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:00:23,961 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:00:23,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:00:23,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:00:23,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:00:23,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:00:23,962 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:00:23,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:00:23,962 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:00:23,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:00:23,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:00:23,963 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:00:23,963 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:00:23,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:00:23,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:00:23,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:00:23,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:00:23,964 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:00:23,965 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:00:23,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:00:23,965 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:00:23,965 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:00:23,965 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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 16:00:24,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:00:24,468 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:00:24,475 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:00:24,477 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:00:24,479 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:00:24,480 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_10.c [2020-09-24 16:00:24,566 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cafdbaff1/52be5722260d41639470c9806da9b03e/FLAG42c4ce7a2 [2020-09-24 16:00:25,148 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:00:25,149 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/locks/test_locks_10.c [2020-09-24 16:00:25,160 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cafdbaff1/52be5722260d41639470c9806da9b03e/FLAG42c4ce7a2 [2020-09-24 16:00:25,481 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cafdbaff1/52be5722260d41639470c9806da9b03e [2020-09-24 16:00:25,497 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:00:25,504 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:00:25,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:00:25,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:00:25,511 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:00:25,512 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:00:25" (1/1) ... [2020-09-24 16:00:25,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@120586d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:25, skipping insertion in model container [2020-09-24 16:00:25,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:00:25" (1/1) ... [2020-09-24 16:00:25,530 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:00:25,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:00:25,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:00:25,828 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:00:25,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:00:25,875 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:00:25,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:25 WrapperNode [2020-09-24 16:00:25,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:00:25,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:00:25,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:00:25,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:00:25,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:25" (1/1) ... [2020-09-24 16:00:25,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:25" (1/1) ... [2020-09-24 16:00:25,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:25" (1/1) ... [2020-09-24 16:00:25,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:25" (1/1) ... [2020-09-24 16:00:25,981 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:25" (1/1) ... [2020-09-24 16:00:25,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:25" (1/1) ... [2020-09-24 16:00:25,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:25" (1/1) ... [2020-09-24 16:00:25,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:00:25,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:00:25,995 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:00:25,996 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:00:25,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:25" (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 16:00:26,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:00:26,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:00:26,069 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:00:26,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:00:26,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:00:26,069 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:00:26,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:00:26,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:00:26,461 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:00:26,461 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 16:00:26,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:00:26 BoogieIcfgContainer [2020-09-24 16:00:26,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:00:26,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:00:26,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:00:26,476 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:00:26,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:00:25" (1/3) ... [2020-09-24 16:00:26,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a7c3d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:00:26, skipping insertion in model container [2020-09-24 16:00:26,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:25" (2/3) ... [2020-09-24 16:00:26,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a7c3d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:00:26, skipping insertion in model container [2020-09-24 16:00:26,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:00:26" (3/3) ... [2020-09-24 16:00:26,482 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_10.c [2020-09-24 16:00:26,497 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:00:26,512 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:00:26,536 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:00:26,571 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:00:26,572 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:00:26,572 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:00:26,572 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:00:26,572 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:00:26,572 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:00:26,572 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:00:26,573 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:00:26,601 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states. [2020-09-24 16:00:26,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-09-24 16:00:26,611 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:26,613 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] [2020-09-24 16:00:26,613 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:26,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:26,620 INFO L82 PathProgramCache]: Analyzing trace with hash -74913912, now seen corresponding path program 1 times [2020-09-24 16:00:26,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:26,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1716068293] [2020-09-24 16:00:26,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:26,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:26,814 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:26,814 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:26,814 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:26,815 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:26,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-24 16:00:26,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:26,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 16:00:26,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:26,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:26,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-09-24 16:00:26,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 16:00:26,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:26,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:26,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:26,917 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:26,918 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:26,918 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:26,919 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:26,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:26,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:26,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:26,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:26,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:26,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:26,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:26,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:26,944 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 16:00:26,945 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1716068293] [2020-09-24 16:00:26,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:26,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:26,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536535937] [2020-09-24 16:00:26,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:26,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:26,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:26,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:26,979 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 3 states. [2020-09-24 16:00:27,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:27,076 INFO L93 Difference]: Finished difference Result 257 states and 353 transitions. [2020-09-24 16:00:27,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:27,079 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-09-24 16:00:27,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:27,103 INFO L225 Difference]: With dead ends: 257 [2020-09-24 16:00:27,103 INFO L226 Difference]: Without dead ends: 176 [2020-09-24 16:00:27,114 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:27,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-09-24 16:00:27,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 174. [2020-09-24 16:00:27,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-09-24 16:00:27,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 230 transitions. [2020-09-24 16:00:27,223 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 230 transitions. Word has length 73 [2020-09-24 16:00:27,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:27,226 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 230 transitions. [2020-09-24 16:00:27,226 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:27,227 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 230 transitions. [2020-09-24 16:00:27,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-24 16:00:27,231 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:27,232 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 16:00:27,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:00:27,232 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:27,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:27,235 INFO L82 PathProgramCache]: Analyzing trace with hash 328701044, now seen corresponding path program 1 times [2020-09-24 16:00:27,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:27,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1741641338] [2020-09-24 16:00:27,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:27,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:27,316 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:27,316 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:27,317 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:27,317 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:27,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 16:00:27,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:27,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:00:27,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:27,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:27,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-24 16:00:27,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:00:27,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:27,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:27,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:27,370 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:27,371 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:27,371 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:27,371 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:27,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:27,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:27,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:27,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:27,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:27,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:27,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:27,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:27,386 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 16:00:27,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1741641338] [2020-09-24 16:00:27,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:27,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:27,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967454601] [2020-09-24 16:00:27,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:27,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:27,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:27,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:27,391 INFO L87 Difference]: Start difference. First operand 174 states and 230 transitions. Second operand 3 states. [2020-09-24 16:00:27,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:27,420 INFO L93 Difference]: Finished difference Result 211 states and 283 transitions. [2020-09-24 16:00:27,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:27,421 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-09-24 16:00:27,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:27,424 INFO L225 Difference]: With dead ends: 211 [2020-09-24 16:00:27,424 INFO L226 Difference]: Without dead ends: 209 [2020-09-24 16:00:27,426 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:27,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-09-24 16:00:27,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 174. [2020-09-24 16:00:27,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-09-24 16:00:27,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 229 transitions. [2020-09-24 16:00:27,442 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 229 transitions. Word has length 74 [2020-09-24 16:00:27,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:27,447 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 229 transitions. [2020-09-24 16:00:27,447 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:27,450 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 229 transitions. [2020-09-24 16:00:27,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-24 16:00:27,453 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:27,453 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 16:00:27,454 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:00:27,454 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:27,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:27,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1972879950, now seen corresponding path program 1 times [2020-09-24 16:00:27,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:27,455 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1771884399] [2020-09-24 16:00:27,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:27,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:27,516 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:27,517 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:27,518 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:27,518 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:27,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 16:00:27,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:27,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:00:27,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:27,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:27,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-24 16:00:27,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 16:00:27,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:27,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:27,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:27,587 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:27,587 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:27,587 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:27,588 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:27,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:27,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:27,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:27,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:27,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:27,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:27,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:27,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:27,595 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 16:00:27,595 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1771884399] [2020-09-24 16:00:27,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:27,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:27,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24968532] [2020-09-24 16:00:27,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:27,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:27,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:27,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:27,598 INFO L87 Difference]: Start difference. First operand 174 states and 229 transitions. Second operand 3 states. [2020-09-24 16:00:27,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:27,632 INFO L93 Difference]: Finished difference Result 426 states and 589 transitions. [2020-09-24 16:00:27,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:27,632 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-09-24 16:00:27,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:27,635 INFO L225 Difference]: With dead ends: 426 [2020-09-24 16:00:27,635 INFO L226 Difference]: Without dead ends: 297 [2020-09-24 16:00:27,637 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:27,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2020-09-24 16:00:27,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 295. [2020-09-24 16:00:27,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-09-24 16:00:27,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 400 transitions. [2020-09-24 16:00:27,654 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 400 transitions. Word has length 74 [2020-09-24 16:00:27,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:27,654 INFO L479 AbstractCegarLoop]: Abstraction has 295 states and 400 transitions. [2020-09-24 16:00:27,654 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:27,655 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 400 transitions. [2020-09-24 16:00:27,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-24 16:00:27,656 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:27,657 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] [2020-09-24 16:00:27,657 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:00:27,657 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:27,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:27,658 INFO L82 PathProgramCache]: Analyzing trace with hash -618815907, now seen corresponding path program 1 times [2020-09-24 16:00:27,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:27,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1833531107] [2020-09-24 16:00:27,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:27,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:27,681 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:27,681 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:27,681 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:27,681 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:27,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-24 16:00:27,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:27,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:27,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:27,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:27,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-09-24 16:00:27,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:00:27,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:27,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:27,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:27,724 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:27,725 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:27,725 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:27,725 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:27,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:27,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:27,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:27,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:27,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:27,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:27,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:27,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:27,733 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 16:00:27,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1833531107] [2020-09-24 16:00:27,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:27,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:27,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691448932] [2020-09-24 16:00:27,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:27,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:27,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:27,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:27,736 INFO L87 Difference]: Start difference. First operand 295 states and 400 transitions. Second operand 3 states. [2020-09-24 16:00:27,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:27,759 INFO L93 Difference]: Finished difference Result 361 states and 496 transitions. [2020-09-24 16:00:27,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:27,760 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-09-24 16:00:27,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:27,763 INFO L225 Difference]: With dead ends: 361 [2020-09-24 16:00:27,763 INFO L226 Difference]: Without dead ends: 359 [2020-09-24 16:00:27,764 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:27,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2020-09-24 16:00:27,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 295. [2020-09-24 16:00:27,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-09-24 16:00:27,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 398 transitions. [2020-09-24 16:00:27,784 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 398 transitions. Word has length 75 [2020-09-24 16:00:27,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:27,785 INFO L479 AbstractCegarLoop]: Abstraction has 295 states and 398 transitions. [2020-09-24 16:00:27,786 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:27,787 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 398 transitions. [2020-09-24 16:00:27,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-24 16:00:27,788 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:27,789 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] [2020-09-24 16:00:27,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 16:00:27,789 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:27,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:27,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1029980604, now seen corresponding path program 1 times [2020-09-24 16:00:27,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:27,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1024951634] [2020-09-24 16:00:27,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:27,826 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:27,827 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:27,827 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:27,827 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:27,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-24 16:00:27,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:27,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:00:27,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:27,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:27,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-09-24 16:00:27,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 16:00:27,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:27,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:27,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:27,904 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:27,904 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:27,904 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:27,905 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:27,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:27,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:27,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:27,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:27,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:27,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:27,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:27,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:27,912 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 16:00:27,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1024951634] [2020-09-24 16:00:27,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:27,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:27,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000226533] [2020-09-24 16:00:27,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:27,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:27,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:27,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:27,915 INFO L87 Difference]: Start difference. First operand 295 states and 398 transitions. Second operand 3 states. [2020-09-24 16:00:27,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:27,944 INFO L93 Difference]: Finished difference Result 783 states and 1088 transitions. [2020-09-24 16:00:27,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:27,945 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-09-24 16:00:27,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:27,948 INFO L225 Difference]: With dead ends: 783 [2020-09-24 16:00:27,949 INFO L226 Difference]: Without dead ends: 533 [2020-09-24 16:00:27,951 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:27,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2020-09-24 16:00:27,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 531. [2020-09-24 16:00:27,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 531 states. [2020-09-24 16:00:27,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 726 transitions. [2020-09-24 16:00:27,967 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 726 transitions. Word has length 75 [2020-09-24 16:00:27,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:27,968 INFO L479 AbstractCegarLoop]: Abstraction has 531 states and 726 transitions. [2020-09-24 16:00:27,968 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:27,968 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 726 transitions. [2020-09-24 16:00:27,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-09-24 16:00:27,970 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:27,970 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] [2020-09-24 16:00:27,970 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 16:00:27,971 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:27,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:27,971 INFO L82 PathProgramCache]: Analyzing trace with hash 72930056, now seen corresponding path program 1 times [2020-09-24 16:00:27,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:27,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [574422268] [2020-09-24 16:00:27,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:27,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:27,989 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:27,990 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:27,990 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:27,990 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:27,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 16:00:27,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:27,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:27,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:27,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:27,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-09-24 16:00:27,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:00:27,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:28,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:28,017 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:28,017 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:28,017 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:28,018 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:28,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:28,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:28,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:28,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:28,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:28,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:28,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:28,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:28,024 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 16:00:28,024 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [574422268] [2020-09-24 16:00:28,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:28,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:28,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325381621] [2020-09-24 16:00:28,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:28,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:28,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:28,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:28,026 INFO L87 Difference]: Start difference. First operand 531 states and 726 transitions. Second operand 3 states. [2020-09-24 16:00:28,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:28,044 INFO L93 Difference]: Finished difference Result 651 states and 900 transitions. [2020-09-24 16:00:28,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:28,044 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2020-09-24 16:00:28,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:28,047 INFO L225 Difference]: With dead ends: 651 [2020-09-24 16:00:28,048 INFO L226 Difference]: Without dead ends: 649 [2020-09-24 16:00:28,048 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:28,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2020-09-24 16:00:28,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 531. [2020-09-24 16:00:28,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 531 states. [2020-09-24 16:00:28,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 722 transitions. [2020-09-24 16:00:28,065 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 722 transitions. Word has length 76 [2020-09-24 16:00:28,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:28,066 INFO L479 AbstractCegarLoop]: Abstraction has 531 states and 722 transitions. [2020-09-24 16:00:28,066 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:28,066 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 722 transitions. [2020-09-24 16:00:28,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-09-24 16:00:28,067 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:28,068 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] [2020-09-24 16:00:28,068 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 16:00:28,068 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:28,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:28,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1864872322, now seen corresponding path program 1 times [2020-09-24 16:00:28,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:28,069 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1090663412] [2020-09-24 16:00:28,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:28,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:28,087 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:28,087 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:28,088 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:28,088 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:28,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 16:00:28,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:28,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:28,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:28,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:28,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-09-24 16:00:28,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 16:00:28,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:28,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:28,121 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:28,121 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:28,122 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:28,122 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:28,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:28,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:28,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:28,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:28,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:28,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:28,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:28,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:28,131 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 16:00:28,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1090663412] [2020-09-24 16:00:28,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:28,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:28,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972622746] [2020-09-24 16:00:28,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:28,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:28,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:28,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:28,134 INFO L87 Difference]: Start difference. First operand 531 states and 722 transitions. Second operand 3 states. [2020-09-24 16:00:28,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:28,167 INFO L93 Difference]: Finished difference Result 1479 states and 2044 transitions. [2020-09-24 16:00:28,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:28,168 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2020-09-24 16:00:28,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:28,174 INFO L225 Difference]: With dead ends: 1479 [2020-09-24 16:00:28,174 INFO L226 Difference]: Without dead ends: 993 [2020-09-24 16:00:28,176 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:28,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2020-09-24 16:00:28,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 991. [2020-09-24 16:00:28,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 991 states. [2020-09-24 16:00:28,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1350 transitions. [2020-09-24 16:00:28,204 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1350 transitions. Word has length 76 [2020-09-24 16:00:28,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:28,205 INFO L479 AbstractCegarLoop]: Abstraction has 991 states and 1350 transitions. [2020-09-24 16:00:28,205 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:28,205 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1350 transitions. [2020-09-24 16:00:28,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-09-24 16:00:28,207 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:28,207 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] [2020-09-24 16:00:28,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 16:00:28,208 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:28,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:28,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1976712176, now seen corresponding path program 1 times [2020-09-24 16:00:28,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:28,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1873216587] [2020-09-24 16:00:28,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:28,225 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:28,226 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:28,226 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:28,226 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:28,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 16:00:28,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:28,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:28,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:28,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:28,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-09-24 16:00:28,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 16:00:28,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 15 [2020-09-24 16:00:28,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:28,269 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:28,269 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:28,270 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:28,270 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:28,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:28,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:28,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:28,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:28,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:28,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:28,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:28,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:28,276 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 16:00:28,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1873216587] [2020-09-24 16:00:28,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:28,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:28,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078150490] [2020-09-24 16:00:28,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:28,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:28,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:28,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:28,278 INFO L87 Difference]: Start difference. First operand 991 states and 1350 transitions. Second operand 3 states. [2020-09-24 16:00:28,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:28,316 INFO L93 Difference]: Finished difference Result 2835 states and 3896 transitions. [2020-09-24 16:00:28,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:28,316 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2020-09-24 16:00:28,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:28,325 INFO L225 Difference]: With dead ends: 2835 [2020-09-24 16:00:28,326 INFO L226 Difference]: Without dead ends: 1889 [2020-09-24 16:00:28,328 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:28,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1889 states. [2020-09-24 16:00:28,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1889 to 1887. [2020-09-24 16:00:28,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1887 states. [2020-09-24 16:00:28,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1887 states to 1887 states and 2558 transitions. [2020-09-24 16:00:28,373 INFO L78 Accepts]: Start accepts. Automaton has 1887 states and 2558 transitions. Word has length 77 [2020-09-24 16:00:28,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:28,374 INFO L479 AbstractCegarLoop]: Abstraction has 1887 states and 2558 transitions. [2020-09-24 16:00:28,374 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:28,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1887 states and 2558 transitions. [2020-09-24 16:00:28,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-09-24 16:00:28,376 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:28,376 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] [2020-09-24 16:00:28,377 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 16:00:28,377 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:28,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:28,377 INFO L82 PathProgramCache]: Analyzing trace with hash 42218801, now seen corresponding path program 1 times [2020-09-24 16:00:28,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:28,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [328088496] [2020-09-24 16:00:28,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:28,392 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:28,393 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:28,393 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:28,393 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:28,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 16:00:28,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:28,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:28,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:28,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:28,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-09-24 16:00:28,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:00:28,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:28,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:28,418 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:28,418 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:28,418 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:28,419 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:28,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:28,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:28,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:28,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:28,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:28,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:28,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:28,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:28,425 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 16:00:28,426 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [328088496] [2020-09-24 16:00:28,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:28,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:28,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787945148] [2020-09-24 16:00:28,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:28,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:28,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:28,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:28,428 INFO L87 Difference]: Start difference. First operand 1887 states and 2558 transitions. Second operand 3 states. [2020-09-24 16:00:28,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:28,457 INFO L93 Difference]: Finished difference Result 2307 states and 3152 transitions. [2020-09-24 16:00:28,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:28,457 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2020-09-24 16:00:28,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:28,468 INFO L225 Difference]: With dead ends: 2307 [2020-09-24 16:00:28,469 INFO L226 Difference]: Without dead ends: 2305 [2020-09-24 16:00:28,470 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:28,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2305 states. [2020-09-24 16:00:28,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2305 to 1887. [2020-09-24 16:00:28,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1887 states. [2020-09-24 16:00:28,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1887 states to 1887 states and 2542 transitions. [2020-09-24 16:00:28,517 INFO L78 Accepts]: Start accepts. Automaton has 1887 states and 2542 transitions. Word has length 77 [2020-09-24 16:00:28,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:28,518 INFO L479 AbstractCegarLoop]: Abstraction has 1887 states and 2542 transitions. [2020-09-24 16:00:28,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:28,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1887 states and 2542 transitions. [2020-09-24 16:00:28,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-24 16:00:28,520 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:28,520 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] [2020-09-24 16:00:28,520 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 16:00:28,521 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:28,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:28,521 INFO L82 PathProgramCache]: Analyzing trace with hash -909829732, now seen corresponding path program 1 times [2020-09-24 16:00:28,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:28,522 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1761835840] [2020-09-24 16:00:28,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:28,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:28,535 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:28,535 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:28,535 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:28,536 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:28,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:00:28,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:28,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:28,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:28,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:28,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-09-24 16:00:28,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:00:28,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:28,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:28,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:28,560 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:28,560 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:28,561 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:28,561 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:28,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:28,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:28,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:28,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:28,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:28,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:28,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:28,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:28,567 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 16:00:28,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1761835840] [2020-09-24 16:00:28,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:28,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:28,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909870760] [2020-09-24 16:00:28,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:28,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:28,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:28,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:28,569 INFO L87 Difference]: Start difference. First operand 1887 states and 2542 transitions. Second operand 3 states. [2020-09-24 16:00:28,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:28,597 INFO L93 Difference]: Finished difference Result 2291 states and 3104 transitions. [2020-09-24 16:00:28,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:28,598 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2020-09-24 16:00:28,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:28,609 INFO L225 Difference]: With dead ends: 2291 [2020-09-24 16:00:28,610 INFO L226 Difference]: Without dead ends: 2289 [2020-09-24 16:00:28,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:28,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2289 states. [2020-09-24 16:00:28,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2289 to 1887. [2020-09-24 16:00:28,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1887 states. [2020-09-24 16:00:28,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1887 states to 1887 states and 2526 transitions. [2020-09-24 16:00:28,663 INFO L78 Accepts]: Start accepts. Automaton has 1887 states and 2526 transitions. Word has length 78 [2020-09-24 16:00:28,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:28,663 INFO L479 AbstractCegarLoop]: Abstraction has 1887 states and 2526 transitions. [2020-09-24 16:00:28,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:28,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1887 states and 2526 transitions. [2020-09-24 16:00:28,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-24 16:00:28,665 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:28,666 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] [2020-09-24 16:00:28,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 16:00:28,666 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:28,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:28,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1148780726, now seen corresponding path program 1 times [2020-09-24 16:00:28,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:28,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [320263152] [2020-09-24 16:00:28,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:28,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:28,679 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:28,679 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:28,680 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:28,680 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:28,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:00:28,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:28,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:28,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:28,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:28,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-09-24 16:00:28,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 16:00:28,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:28,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:28,706 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:28,706 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:28,706 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:28,706 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:28,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:28,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:28,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 16:00:28,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:28,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:28,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:28,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:28,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:28,755 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 16:00:28,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [320263152] [2020-09-24 16:00:28,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:28,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:28,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136265686] [2020-09-24 16:00:28,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:28,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:28,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:28,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:28,758 INFO L87 Difference]: Start difference. First operand 1887 states and 2526 transitions. Second operand 3 states. [2020-09-24 16:00:28,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:28,822 INFO L93 Difference]: Finished difference Result 5475 states and 7360 transitions. [2020-09-24 16:00:28,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:28,822 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2020-09-24 16:00:28,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:28,845 INFO L225 Difference]: With dead ends: 5475 [2020-09-24 16:00:28,845 INFO L226 Difference]: Without dead ends: 3633 [2020-09-24 16:00:28,850 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:28,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3633 states. [2020-09-24 16:00:28,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3633 to 3631. [2020-09-24 16:00:28,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3631 states. [2020-09-24 16:00:28,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3631 states to 3631 states and 4814 transitions. [2020-09-24 16:00:28,975 INFO L78 Accepts]: Start accepts. Automaton has 3631 states and 4814 transitions. Word has length 78 [2020-09-24 16:00:28,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:28,976 INFO L479 AbstractCegarLoop]: Abstraction has 3631 states and 4814 transitions. [2020-09-24 16:00:28,976 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:28,976 INFO L276 IsEmpty]: Start isEmpty. Operand 3631 states and 4814 transitions. [2020-09-24 16:00:28,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-24 16:00:28,981 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:28,981 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 16:00:28,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 16:00:28,982 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:28,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:28,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1252709924, now seen corresponding path program 1 times [2020-09-24 16:00:28,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:28,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1201972058] [2020-09-24 16:00:28,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:28,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:28,999 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:29,000 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:29,000 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:29,000 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:29,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:00:29,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:29,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:29,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:29,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:29,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-24 16:00:29,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 16:00:29,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:29,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:29,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:29,027 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:29,027 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:29,027 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:29,028 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:29,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:29,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:29,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:29,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:29,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:29,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:29,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:29,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:29,037 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 16:00:29,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1201972058] [2020-09-24 16:00:29,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:29,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:29,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739756006] [2020-09-24 16:00:29,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:29,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:29,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:29,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:29,041 INFO L87 Difference]: Start difference. First operand 3631 states and 4814 transitions. Second operand 3 states. [2020-09-24 16:00:29,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:29,137 INFO L93 Difference]: Finished difference Result 10611 states and 14096 transitions. [2020-09-24 16:00:29,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:29,138 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2020-09-24 16:00:29,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:29,180 INFO L225 Difference]: With dead ends: 10611 [2020-09-24 16:00:29,180 INFO L226 Difference]: Without dead ends: 7025 [2020-09-24 16:00:29,190 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:29,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7025 states. [2020-09-24 16:00:29,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7025 to 7023. [2020-09-24 16:00:29,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7023 states. [2020-09-24 16:00:29,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7023 states to 7023 states and 9198 transitions. [2020-09-24 16:00:29,443 INFO L78 Accepts]: Start accepts. Automaton has 7023 states and 9198 transitions. Word has length 79 [2020-09-24 16:00:29,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:29,444 INFO L479 AbstractCegarLoop]: Abstraction has 7023 states and 9198 transitions. [2020-09-24 16:00:29,444 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:29,444 INFO L276 IsEmpty]: Start isEmpty. Operand 7023 states and 9198 transitions. [2020-09-24 16:00:29,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-24 16:00:29,450 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:29,450 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 16:00:29,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 16:00:29,450 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:29,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:29,451 INFO L82 PathProgramCache]: Analyzing trace with hash -358562811, now seen corresponding path program 1 times [2020-09-24 16:00:29,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:29,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [139558203] [2020-09-24 16:00:29,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:29,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:29,463 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:29,463 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:29,464 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:29,464 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:29,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:00:29,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:29,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:29,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:29,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:29,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-24 16:00:29,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:00:29,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:29,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:29,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:29,487 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:29,487 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:29,487 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:29,488 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:29,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:29,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:29,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:29,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:29,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:29,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:29,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:29,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:29,494 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 16:00:29,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [139558203] [2020-09-24 16:00:29,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:29,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:29,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995972804] [2020-09-24 16:00:29,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:29,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:29,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:29,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:29,496 INFO L87 Difference]: Start difference. First operand 7023 states and 9198 transitions. Second operand 3 states. [2020-09-24 16:00:29,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:29,563 INFO L93 Difference]: Finished difference Result 8435 states and 11056 transitions. [2020-09-24 16:00:29,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:29,563 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2020-09-24 16:00:29,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:29,603 INFO L225 Difference]: With dead ends: 8435 [2020-09-24 16:00:29,603 INFO L226 Difference]: Without dead ends: 8433 [2020-09-24 16:00:29,607 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:29,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8433 states. [2020-09-24 16:00:29,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8433 to 7023. [2020-09-24 16:00:29,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7023 states. [2020-09-24 16:00:29,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7023 states to 7023 states and 9134 transitions. [2020-09-24 16:00:29,773 INFO L78 Accepts]: Start accepts. Automaton has 7023 states and 9134 transitions. Word has length 79 [2020-09-24 16:00:29,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:29,774 INFO L479 AbstractCegarLoop]: Abstraction has 7023 states and 9134 transitions. [2020-09-24 16:00:29,774 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:29,774 INFO L276 IsEmpty]: Start isEmpty. Operand 7023 states and 9134 transitions. [2020-09-24 16:00:29,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-24 16:00:29,780 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:29,780 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] [2020-09-24 16:00:29,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 16:00:29,780 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:29,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:29,781 INFO L82 PathProgramCache]: Analyzing trace with hash -449157072, now seen corresponding path program 1 times [2020-09-24 16:00:29,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:29,781 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1438950691] [2020-09-24 16:00:29,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:29,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:29,794 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:29,794 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:29,794 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:29,795 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:29,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-24 16:00:29,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:29,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:29,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:29,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:29,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-09-24 16:00:29,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:00:29,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:29,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:29,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:29,817 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:29,818 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:29,818 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:29,818 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:29,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:29,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:29,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:29,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:29,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:29,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:29,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:29,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:29,826 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 16:00:29,827 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1438950691] [2020-09-24 16:00:29,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:29,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:29,827 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7149095] [2020-09-24 16:00:29,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:29,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:29,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:29,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:29,829 INFO L87 Difference]: Start difference. First operand 7023 states and 9134 transitions. Second operand 3 states. [2020-09-24 16:00:29,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:29,904 INFO L93 Difference]: Finished difference Result 8371 states and 10864 transitions. [2020-09-24 16:00:29,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:29,905 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2020-09-24 16:00:29,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:29,924 INFO L225 Difference]: With dead ends: 8371 [2020-09-24 16:00:29,924 INFO L226 Difference]: Without dead ends: 8369 [2020-09-24 16:00:29,928 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:29,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8369 states. [2020-09-24 16:00:30,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8369 to 7023. [2020-09-24 16:00:30,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7023 states. [2020-09-24 16:00:30,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7023 states to 7023 states and 9070 transitions. [2020-09-24 16:00:30,162 INFO L78 Accepts]: Start accepts. Automaton has 7023 states and 9070 transitions. Word has length 80 [2020-09-24 16:00:30,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:30,162 INFO L479 AbstractCegarLoop]: Abstraction has 7023 states and 9070 transitions. [2020-09-24 16:00:30,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:30,162 INFO L276 IsEmpty]: Start isEmpty. Operand 7023 states and 9070 transitions. [2020-09-24 16:00:30,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-24 16:00:30,168 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:30,168 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] [2020-09-24 16:00:30,168 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 16:00:30,169 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:30,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:30,169 INFO L82 PathProgramCache]: Analyzing trace with hash 179548138, now seen corresponding path program 1 times [2020-09-24 16:00:30,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:30,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1713516913] [2020-09-24 16:00:30,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:30,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:30,181 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:30,181 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:30,181 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:30,182 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:30,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-24 16:00:30,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:30,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:30,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:30,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:30,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-09-24 16:00:30,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 16:00:30,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:30,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:30,202 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:30,202 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:30,203 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:30,203 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:30,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:30,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:30,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:30,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:30,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:30,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:30,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:30,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:30,209 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 16:00:30,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1713516913] [2020-09-24 16:00:30,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:30,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:30,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236907897] [2020-09-24 16:00:30,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:30,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:30,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:30,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:30,211 INFO L87 Difference]: Start difference. First operand 7023 states and 9070 transitions. Second operand 3 states. [2020-09-24 16:00:30,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:30,378 INFO L93 Difference]: Finished difference Result 20595 states and 26608 transitions. [2020-09-24 16:00:30,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:30,378 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2020-09-24 16:00:30,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:30,410 INFO L225 Difference]: With dead ends: 20595 [2020-09-24 16:00:30,411 INFO L226 Difference]: Without dead ends: 13617 [2020-09-24 16:00:30,431 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:30,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13617 states. [2020-09-24 16:00:30,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13617 to 13615. [2020-09-24 16:00:30,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13615 states. [2020-09-24 16:00:30,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13615 states to 13615 states and 17326 transitions. [2020-09-24 16:00:30,833 INFO L78 Accepts]: Start accepts. Automaton has 13615 states and 17326 transitions. Word has length 80 [2020-09-24 16:00:30,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:30,833 INFO L479 AbstractCegarLoop]: Abstraction has 13615 states and 17326 transitions. [2020-09-24 16:00:30,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:30,834 INFO L276 IsEmpty]: Start isEmpty. Operand 13615 states and 17326 transitions. [2020-09-24 16:00:30,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-09-24 16:00:30,844 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:30,844 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] [2020-09-24 16:00:30,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 16:00:30,845 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:30,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:30,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1037388505, now seen corresponding path program 1 times [2020-09-24 16:00:30,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:30,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [776459916] [2020-09-24 16:00:30,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:30,858 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:30,858 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:30,859 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:30,859 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:30,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-24 16:00:30,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:30,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:30,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:30,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:30,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-09-24 16:00:30,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:00:30,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:30,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:30,886 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:30,887 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:30,887 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:30,887 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:30,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:30,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:30,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:30,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:30,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:30,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:30,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:30,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:30,897 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 16:00:30,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [776459916] [2020-09-24 16:00:30,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:30,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:30,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587500373] [2020-09-24 16:00:30,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:30,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:30,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:30,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:30,899 INFO L87 Difference]: Start difference. First operand 13615 states and 17326 transitions. Second operand 3 states. [2020-09-24 16:00:31,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:31,017 INFO L93 Difference]: Finished difference Result 16051 states and 20272 transitions. [2020-09-24 16:00:31,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:31,018 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 81 [2020-09-24 16:00:31,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:31,052 INFO L225 Difference]: With dead ends: 16051 [2020-09-24 16:00:31,052 INFO L226 Difference]: Without dead ends: 16049 [2020-09-24 16:00:31,059 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:31,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16049 states. [2020-09-24 16:00:31,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16049 to 13615. [2020-09-24 16:00:31,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13615 states. [2020-09-24 16:00:31,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13615 states to 13615 states and 17198 transitions. [2020-09-24 16:00:31,357 INFO L78 Accepts]: Start accepts. Automaton has 13615 states and 17198 transitions. Word has length 81 [2020-09-24 16:00:31,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:31,358 INFO L479 AbstractCegarLoop]: Abstraction has 13615 states and 17198 transitions. [2020-09-24 16:00:31,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:31,358 INFO L276 IsEmpty]: Start isEmpty. Operand 13615 states and 17198 transitions. [2020-09-24 16:00:31,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-09-24 16:00:31,368 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:31,369 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] [2020-09-24 16:00:31,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-24 16:00:31,369 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:31,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:31,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1271271512, now seen corresponding path program 1 times [2020-09-24 16:00:31,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:31,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1372570818] [2020-09-24 16:00:31,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:31,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:31,384 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:31,384 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:31,384 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:31,385 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:31,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-24 16:00:31,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:31,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:31,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:31,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:31,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-09-24 16:00:31,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 16:00:31,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:31,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:31,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:31,408 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:31,408 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:31,408 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:31,408 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:31,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:31,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:31,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:31,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:31,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:31,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:31,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:31,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:31,419 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 16:00:31,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1372570818] [2020-09-24 16:00:31,420 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:31,420 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:31,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803503207] [2020-09-24 16:00:31,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:31,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:31,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:31,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:31,422 INFO L87 Difference]: Start difference. First operand 13615 states and 17198 transitions. Second operand 3 states. [2020-09-24 16:00:31,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:31,982 INFO L93 Difference]: Finished difference Result 39987 states and 50480 transitions. [2020-09-24 16:00:31,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:31,983 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 81 [2020-09-24 16:00:31,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:32,037 INFO L225 Difference]: With dead ends: 39987 [2020-09-24 16:00:32,038 INFO L226 Difference]: Without dead ends: 26417 [2020-09-24 16:00:32,070 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:32,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26417 states. [2020-09-24 16:00:32,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26417 to 26415. [2020-09-24 16:00:32,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26415 states. [2020-09-24 16:00:32,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26415 states to 26415 states and 32814 transitions. [2020-09-24 16:00:32,644 INFO L78 Accepts]: Start accepts. Automaton has 26415 states and 32814 transitions. Word has length 81 [2020-09-24 16:00:32,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:32,645 INFO L479 AbstractCegarLoop]: Abstraction has 26415 states and 32814 transitions. [2020-09-24 16:00:32,645 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:32,645 INFO L276 IsEmpty]: Start isEmpty. Operand 26415 states and 32814 transitions. [2020-09-24 16:00:32,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-24 16:00:32,663 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:32,663 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, 1, 1, 1] [2020-09-24 16:00:32,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-24 16:00:32,664 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:32,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:32,664 INFO L82 PathProgramCache]: Analyzing trace with hash -124338492, now seen corresponding path program 1 times [2020-09-24 16:00:32,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:32,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [291223770] [2020-09-24 16:00:32,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:32,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:32,678 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:32,678 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:32,678 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:32,678 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:32,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 16:00:32,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:32,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:32,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:32,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:32,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-24 16:00:32,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:00:32,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:32,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:32,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:32,700 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:32,700 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:32,700 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:32,700 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:32,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:32,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:32,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:32,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:32,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:32,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:32,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:32,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:32,707 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 16:00:32,708 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [291223770] [2020-09-24 16:00:32,708 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:32,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:32,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739112179] [2020-09-24 16:00:32,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:32,709 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:32,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:32,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:32,709 INFO L87 Difference]: Start difference. First operand 26415 states and 32814 transitions. Second operand 3 states. [2020-09-24 16:00:32,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:32,924 INFO L93 Difference]: Finished difference Result 30771 states and 37680 transitions. [2020-09-24 16:00:32,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:32,924 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 82 [2020-09-24 16:00:32,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:32,978 INFO L225 Difference]: With dead ends: 30771 [2020-09-24 16:00:32,979 INFO L226 Difference]: Without dead ends: 30769 [2020-09-24 16:00:32,991 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:33,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30769 states. [2020-09-24 16:00:33,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30769 to 26415. [2020-09-24 16:00:33,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26415 states. [2020-09-24 16:00:33,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26415 states to 26415 states and 32558 transitions. [2020-09-24 16:00:33,791 INFO L78 Accepts]: Start accepts. Automaton has 26415 states and 32558 transitions. Word has length 82 [2020-09-24 16:00:33,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:33,791 INFO L479 AbstractCegarLoop]: Abstraction has 26415 states and 32558 transitions. [2020-09-24 16:00:33,791 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:33,792 INFO L276 IsEmpty]: Start isEmpty. Operand 26415 states and 32558 transitions. [2020-09-24 16:00:33,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-24 16:00:33,808 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:33,808 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] [2020-09-24 16:00:33,808 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-24 16:00:33,808 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:33,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:33,809 INFO L82 PathProgramCache]: Analyzing trace with hash 754958110, now seen corresponding path program 1 times [2020-09-24 16:00:33,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:33,809 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1117268564] [2020-09-24 16:00:33,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:33,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:33,821 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:33,821 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:33,821 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:33,822 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:33,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 16:00:33,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:33,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:33,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:33,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:33,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-24 16:00:33,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 16:00:33,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:33,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:33,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:33,842 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:33,843 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:33,843 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:33,843 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:33,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:33,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:33,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:33,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:33,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:33,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:33,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:33,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:33,849 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 16:00:33,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1117268564] [2020-09-24 16:00:33,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:33,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:33,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009869003] [2020-09-24 16:00:33,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:33,851 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:33,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:33,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:33,851 INFO L87 Difference]: Start difference. First operand 26415 states and 32558 transitions. Second operand 3 states. [2020-09-24 16:00:34,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:34,195 INFO L93 Difference]: Finished difference Result 77617 states and 95535 transitions. [2020-09-24 16:00:34,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:34,195 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 82 [2020-09-24 16:00:34,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:34,253 INFO L225 Difference]: With dead ends: 77617 [2020-09-24 16:00:34,254 INFO L226 Difference]: Without dead ends: 26415 [2020-09-24 16:00:34,335 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:34,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26415 states. [2020-09-24 16:00:35,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26415 to 26415. [2020-09-24 16:00:35,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26415 states. [2020-09-24 16:00:35,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26415 states to 26415 states and 31534 transitions. [2020-09-24 16:00:35,715 INFO L78 Accepts]: Start accepts. Automaton has 26415 states and 31534 transitions. Word has length 82 [2020-09-24 16:00:35,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:35,716 INFO L479 AbstractCegarLoop]: Abstraction has 26415 states and 31534 transitions. [2020-09-24 16:00:35,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:35,716 INFO L276 IsEmpty]: Start isEmpty. Operand 26415 states and 31534 transitions. [2020-09-24 16:00:35,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-24 16:00:35,735 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:35,735 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] [2020-09-24 16:00:35,735 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-24 16:00:35,735 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:35,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:35,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1778136659, now seen corresponding path program 1 times [2020-09-24 16:00:35,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:35,736 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1459108322] [2020-09-24 16:00:35,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:35,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:35,757 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:35,758 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:35,758 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:35,758 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:35,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-24 16:00:35,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:35,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:35,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:35,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:35,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 16:00:35,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:00:35,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:35,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:35,800 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:35,800 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:35,801 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:35,801 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:35,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:35,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:35,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 16:00:35,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:35,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:35,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:35,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:35,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:35,808 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 16:00:35,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1459108322] [2020-09-24 16:00:35,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:35,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:35,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423086429] [2020-09-24 16:00:35,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:35,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:35,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:35,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:35,811 INFO L87 Difference]: Start difference. First operand 26415 states and 31534 transitions. Second operand 3 states. [2020-09-24 16:00:35,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:35,955 INFO L93 Difference]: Finished difference Result 26415 states and 31534 transitions. [2020-09-24 16:00:35,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:35,956 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 83 [2020-09-24 16:00:35,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:35,956 INFO L225 Difference]: With dead ends: 26415 [2020-09-24 16:00:35,957 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 16:00:35,985 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:35,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 16:00:35,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 16:00:35,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 16:00:35,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 16:00:35,986 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 83 [2020-09-24 16:00:35,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:35,986 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 16:00:35,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:35,986 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 16:00:35,986 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 16:00:35,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-24 16:00:35,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 16:00:36,023 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-24 16:00:36,024 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 16:00:36,024 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 16:00:36,024 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 16:00:36,024 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 16:00:36,024 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 16:00:36,024 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 4 163) no Hoare annotation was computed. [2020-09-24 16:00:36,024 INFO L268 CegarLoopResult]: For program point L118-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 16:00:36,025 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-24 16:00:36,025 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-24 16:00:36,025 INFO L268 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-09-24 16:00:36,025 INFO L268 CegarLoopResult]: For program point L102-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 16:00:36,025 INFO L268 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-09-24 16:00:36,025 INFO L268 CegarLoopResult]: For program point L86-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 16:00:36,025 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-09-24 16:00:36,025 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-24 16:00:36,026 INFO L268 CegarLoopResult]: For program point L70-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 16:00:36,026 INFO L268 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-09-24 16:00:36,026 INFO L271 CegarLoopResult]: At program point L153-1(lines 39 158) the Hoare annotation is: true [2020-09-24 16:00:36,026 INFO L268 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-09-24 16:00:36,026 INFO L268 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-09-24 16:00:36,026 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-24 16:00:36,026 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-09-24 16:00:36,026 INFO L268 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed. [2020-09-24 16:00:36,027 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 4 163) no Hoare annotation was computed. [2020-09-24 16:00:36,027 INFO L268 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-09-24 16:00:36,027 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-09-24 16:00:36,027 INFO L264 CegarLoopResult]: At program point L154-1(lines 5 163) the Hoare annotation is: false [2020-09-24 16:00:36,027 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-24 16:00:36,027 INFO L268 CegarLoopResult]: For program point L138-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 16:00:36,027 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-24 16:00:36,027 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-24 16:00:36,028 INFO L268 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-09-24 16:00:36,028 INFO L268 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-09-24 16:00:36,028 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-09-24 16:00:36,028 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-24 16:00:36,028 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-24 16:00:36,028 INFO L268 CegarLoopResult]: For program point L40-1(line 40) no Hoare annotation was computed. [2020-09-24 16:00:36,028 INFO L268 CegarLoopResult]: For program point L40-2(line 40) no Hoare annotation was computed. [2020-09-24 16:00:36,028 INFO L268 CegarLoopResult]: For program point L123-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 16:00:36,029 INFO L268 CegarLoopResult]: For program point L90-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 16:00:36,029 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-24 16:00:36,029 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-09-24 16:00:36,029 INFO L268 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-09-24 16:00:36,029 INFO L268 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-09-24 16:00:36,029 INFO L268 CegarLoopResult]: For program point L41(lines 41 43) no Hoare annotation was computed. [2020-09-24 16:00:36,029 INFO L268 CegarLoopResult]: For program point L74-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 16:00:36,029 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-09-24 16:00:36,029 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-09-24 16:00:36,030 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-09-24 16:00:36,030 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-24 16:00:36,030 INFO L268 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-09-24 16:00:36,030 INFO L268 CegarLoopResult]: For program point L108-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 16:00:36,030 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-09-24 16:00:36,030 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-09-24 16:00:36,030 INFO L268 CegarLoopResult]: For program point L9-2(line 9) no Hoare annotation was computed. [2020-09-24 16:00:36,031 INFO L268 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-09-24 16:00:36,031 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-09-24 16:00:36,031 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-24 16:00:36,031 INFO L271 CegarLoopResult]: At program point L159(lines 5 163) the Hoare annotation is: true [2020-09-24 16:00:36,031 INFO L268 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-09-24 16:00:36,031 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-24 16:00:36,031 INFO L268 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-09-24 16:00:36,032 INFO L268 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed. [2020-09-24 16:00:36,032 INFO L268 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-09-24 16:00:36,032 INFO L268 CegarLoopResult]: For program point L143-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 16:00:36,032 INFO L268 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-09-24 16:00:36,032 INFO L268 CegarLoopResult]: For program point L94-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 16:00:36,032 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-24 16:00:36,032 INFO L268 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-09-24 16:00:36,032 INFO L268 CegarLoopResult]: For program point L78-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 16:00:36,033 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-24 16:00:36,033 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-09-24 16:00:36,033 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-24 16:00:36,033 INFO L268 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-09-24 16:00:36,033 INFO L268 CegarLoopResult]: For program point L128-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 16:00:36,033 INFO L268 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-09-24 16:00:36,033 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-09-24 16:00:36,033 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-09-24 16:00:36,034 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-24 16:00:36,034 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-24 16:00:36,034 INFO L268 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-09-24 16:00:36,034 INFO L268 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-09-24 16:00:36,034 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 161) no Hoare annotation was computed. [2020-09-24 16:00:36,034 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-09-24 16:00:36,034 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 4 163) the Hoare annotation is: true [2020-09-24 16:00:36,035 INFO L268 CegarLoopResult]: For program point L30-1(line 30) no Hoare annotation was computed. [2020-09-24 16:00:36,035 INFO L268 CegarLoopResult]: For program point L30-2(line 30) no Hoare annotation was computed. [2020-09-24 16:00:36,035 INFO L268 CegarLoopResult]: For program point L113-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 16:00:36,035 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-09-24 16:00:36,035 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-24 16:00:36,035 INFO L268 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-09-24 16:00:36,035 INFO L268 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-09-24 16:00:36,035 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-24 16:00:36,035 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-24 16:00:36,036 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-24 16:00:36,036 INFO L268 CegarLoopResult]: For program point L98-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 16:00:36,036 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-09-24 16:00:36,036 INFO L268 CegarLoopResult]: For program point L148-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 16:00:36,036 INFO L268 CegarLoopResult]: For program point L82-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 16:00:36,036 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-24 16:00:36,036 INFO L268 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-09-24 16:00:36,036 INFO L268 CegarLoopResult]: For program point L66(lines 66 68) no Hoare annotation was computed. [2020-09-24 16:00:36,036 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-09-24 16:00:36,037 INFO L268 CegarLoopResult]: For program point L33-1(line 33) no Hoare annotation was computed. [2020-09-24 16:00:36,037 INFO L268 CegarLoopResult]: For program point L66-2(lines 39 158) no Hoare annotation was computed. [2020-09-24 16:00:36,037 INFO L268 CegarLoopResult]: For program point L33-2(line 33) no Hoare annotation was computed. [2020-09-24 16:00:36,037 INFO L268 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-09-24 16:00:36,037 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-09-24 16:00:36,037 INFO L268 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-09-24 16:00:36,037 INFO L268 CegarLoopResult]: For program point L133-1(lines 39 158) no Hoare annotation was computed. [2020-09-24 16:00:36,038 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-09-24 16:00:36,038 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-24 16:00:36,038 INFO L268 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-09-24 16:00:36,038 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-24 16:00:36,038 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-24 16:00:36,038 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-24 16:00:36,038 INFO L268 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-09-24 16:00:36,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 04:00:36 BoogieIcfgContainer [2020-09-24 16:00:36,054 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 16:00:36,057 INFO L168 Benchmark]: Toolchain (without parser) took 10556.86 ms. Allocated memory was 140.0 MB in the beginning and 903.9 MB in the end (delta: 763.9 MB). Free memory was 103.7 MB in the beginning and 626.1 MB in the end (delta: -522.4 MB). Peak memory consumption was 241.5 MB. Max. memory is 7.1 GB. [2020-09-24 16:00:36,058 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 16:00:36,059 INFO L168 Benchmark]: CACSL2BoogieTranslator took 370.20 ms. Allocated memory is still 140.0 MB. Free memory was 103.0 MB in the beginning and 92.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-09-24 16:00:36,059 INFO L168 Benchmark]: Boogie Preprocessor took 118.20 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 92.3 MB in the beginning and 179.7 MB in the end (delta: -87.4 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2020-09-24 16:00:36,060 INFO L168 Benchmark]: RCFGBuilder took 474.81 ms. Allocated memory is still 202.4 MB. Free memory was 179.7 MB in the beginning and 155.2 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-09-24 16:00:36,061 INFO L168 Benchmark]: TraceAbstraction took 9582.42 ms. Allocated memory was 202.4 MB in the beginning and 903.9 MB in the end (delta: 701.5 MB). Free memory was 155.2 MB in the beginning and 626.1 MB in the end (delta: -470.8 MB). Peak memory consumption was 230.7 MB. Max. memory is 7.1 GB. [2020-09-24 16:00:36,063 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 370.20 ms. Allocated memory is still 140.0 MB. Free memory was 103.0 MB in the beginning and 92.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.20 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 92.3 MB in the beginning and 179.7 MB in the end (delta: -87.4 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 474.81 ms. Allocated memory is still 202.4 MB. Free memory was 179.7 MB in the beginning and 155.2 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9582.42 ms. Allocated memory was 202.4 MB in the beginning and 903.9 MB in the end (delta: 701.5 MB). Free memory was 155.2 MB in the beginning and 626.1 MB in the end (delta: -470.8 MB). Peak memory consumption was 230.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 161]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 118 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.4s, OverallIterations: 20, TraceHistogramMax: 1, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3610 SDtfs, 1318 SDslu, 2579 SDs, 0 SdLazy, 99 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26415occurred in iteration=17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.5s AutomataMinimizationTime, 20 MinimizatonAttempts, 10599 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 1033 NumberOfFragments, 7 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1560 NumberOfCodeBlocks, 1560 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1540 ConstructedInterpolants, 0 QuantifiedInterpolants, 151100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 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...