/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 19:53:20,761 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 19:53:20,765 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 19:53:20,815 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-22 19:53:20,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 19:53:20,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 19:53:20,860 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 19:53:20,862 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 19:53:20,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 19:53:20,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 19:53:20,869 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 19:53:20,880 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 19:53:20,885 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 19:53:20,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 19:53:20,888 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 19:53:20,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 19:53:20,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 19:53:20,906 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 19:53:20,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 19:53:20,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 19:53:20,911 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 19:53:20,931 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 19:53:20,932 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 19:53:20,936 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 19:53:20,936 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 19:53:20,937 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 19:53:20,937 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 19:53:20,937 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 19:53:20,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 19:53:20,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 19:53:20,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 19:53:20,940 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 19:53:20,940 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 19:53:20,941 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 19:53:20,941 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 19:53:20,942 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 19:53:20,942 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 19:53:20,942 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 19:53:20,942 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 19:53:20,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 19:53:20,943 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 19:53:20,943 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 19:53:20,943 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 19:53:20,943 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 19:53:21,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 19:53:21,309 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 19:53:21,314 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 19:53:21,316 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 19:53:21,317 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 19:53:21,318 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2020-08-22 19:53:21,422 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f791c620/4adea475da1b47de9b5c7c38774f1828/FLAGc32e6b991 [2020-08-22 19:53:22,245 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 19:53:22,246 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2020-08-22 19:53:22,269 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f791c620/4adea475da1b47de9b5c7c38774f1828/FLAGc32e6b991 [2020-08-22 19:53:22,395 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f791c620/4adea475da1b47de9b5c7c38774f1828 [2020-08-22 19:53:22,413 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 19:53:22,418 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 19:53:22,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 19:53:22,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 19:53:22,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 19:53:22,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:53:22" (1/1) ... [2020-08-22 19:53:22,432 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f2a2a06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:53:22, skipping insertion in model container [2020-08-22 19:53:22,432 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:53:22" (1/1) ... [2020-08-22 19:53:22,444 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 19:53:22,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 19:53:23,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:53:23,287 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 19:53:23,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:53:23,884 INFO L208 MainTranslator]: Completed translation [2020-08-22 19:53:23,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:53:23 WrapperNode [2020-08-22 19:53:23,885 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 19:53:23,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 19:53:23,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 19:53:23,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 19:53:23,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:53:23" (1/1) ... [2020-08-22 19:53:23,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:53:23" (1/1) ... [2020-08-22 19:53:23,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:53:23" (1/1) ... [2020-08-22 19:53:23,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:53:23" (1/1) ... [2020-08-22 19:53:24,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:53:23" (1/1) ... [2020-08-22 19:53:24,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:53:23" (1/1) ... [2020-08-22 19:53:24,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:53:23" (1/1) ... [2020-08-22 19:53:24,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 19:53:24,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 19:53:24,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 19:53:24,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 19:53:24,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:53:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-08-22 19:53:24,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 19:53:24,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 19:53:24,215 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-22 19:53:24,215 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 19:53:24,216 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 19:53:24,216 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-08-22 19:53:24,216 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-08-22 19:53:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-08-22 19:53:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-22 19:53:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-22 19:53:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-08-22 19:53:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-08-22 19:53:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-08-22 19:53:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-08-22 19:53:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-08-22 19:53:24,219 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-08-22 19:53:24,219 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-08-22 19:53:24,219 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 19:53:24,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 19:53:24,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 19:53:26,952 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 19:53:26,952 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 19:53:26,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:53:26 BoogieIcfgContainer [2020-08-22 19:53:26,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 19:53:26,971 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 19:53:26,971 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 19:53:26,975 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 19:53:26,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 07:53:22" (1/3) ... [2020-08-22 19:53:26,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a21bc1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:53:26, skipping insertion in model container [2020-08-22 19:53:26,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:53:23" (2/3) ... [2020-08-22 19:53:26,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a21bc1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:53:26, skipping insertion in model container [2020-08-22 19:53:26,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:53:26" (3/3) ... [2020-08-22 19:53:26,981 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2020-08-22 19:53:26,996 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 19:53:27,010 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-08-22 19:53:27,029 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-08-22 19:53:27,061 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 19:53:27,061 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 19:53:27,061 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 19:53:27,061 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 19:53:27,062 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 19:53:27,062 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 19:53:27,062 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 19:53:27,062 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 19:53:27,105 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states. [2020-08-22 19:53:27,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2020-08-22 19:53:27,154 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:53:27,156 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:53:27,157 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:53:27,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:53:27,167 INFO L82 PathProgramCache]: Analyzing trace with hash -219806221, now seen corresponding path program 1 times [2020-08-22 19:53:27,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:53:27,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [380363795] [2020-08-22 19:53:27,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:53:27,266 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:53:27,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:28,745 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 19:53:28,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:53:28,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:29,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:53:29,043 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [380363795] [2020-08-22 19:53:29,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:53:29,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 19:53:29,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471559575] [2020-08-22 19:53:29,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 19:53:29,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:53:29,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 19:53:29,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 19:53:29,090 INFO L87 Difference]: Start difference. First operand 1127 states. Second operand 4 states. [2020-08-22 19:53:35,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:53:35,061 INFO L93 Difference]: Finished difference Result 1833 states and 2360 transitions. [2020-08-22 19:53:35,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 19:53:35,065 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 423 [2020-08-22 19:53:35,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:53:35,103 INFO L225 Difference]: With dead ends: 1833 [2020-08-22 19:53:35,104 INFO L226 Difference]: Without dead ends: 1303 [2020-08-22 19:53:35,115 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 19:53:35,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2020-08-22 19:53:35,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 1296. [2020-08-22 19:53:35,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1296 states. [2020-08-22 19:53:35,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 1545 transitions. [2020-08-22 19:53:35,302 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 1545 transitions. Word has length 423 [2020-08-22 19:53:35,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:53:35,306 INFO L479 AbstractCegarLoop]: Abstraction has 1296 states and 1545 transitions. [2020-08-22 19:53:35,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 19:53:35,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 1545 transitions. [2020-08-22 19:53:35,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2020-08-22 19:53:35,322 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:53:35,323 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:53:35,324 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 19:53:35,324 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:53:35,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:53:35,325 INFO L82 PathProgramCache]: Analyzing trace with hash -74379501, now seen corresponding path program 1 times [2020-08-22 19:53:35,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:53:35,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1540645387] [2020-08-22 19:53:35,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:53:35,331 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:53:35,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:36,105 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 19:53:36,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:53:36,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:36,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:53:36,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1540645387] [2020-08-22 19:53:36,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:53:36,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 19:53:36,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495164605] [2020-08-22 19:53:36,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 19:53:36,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:53:36,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 19:53:36,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 19:53:36,513 INFO L87 Difference]: Start difference. First operand 1296 states and 1545 transitions. Second operand 5 states. [2020-08-22 19:53:44,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:53:44,788 INFO L93 Difference]: Finished difference Result 3469 states and 4190 transitions. [2020-08-22 19:53:44,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 19:53:44,789 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 423 [2020-08-22 19:53:44,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:53:44,805 INFO L225 Difference]: With dead ends: 3469 [2020-08-22 19:53:44,805 INFO L226 Difference]: Without dead ends: 2356 [2020-08-22 19:53:44,812 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 19:53:44,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2356 states. [2020-08-22 19:53:44,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2356 to 2234. [2020-08-22 19:53:44,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2234 states. [2020-08-22 19:53:44,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2234 states to 2234 states and 2699 transitions. [2020-08-22 19:53:44,988 INFO L78 Accepts]: Start accepts. Automaton has 2234 states and 2699 transitions. Word has length 423 [2020-08-22 19:53:44,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:53:44,990 INFO L479 AbstractCegarLoop]: Abstraction has 2234 states and 2699 transitions. [2020-08-22 19:53:44,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 19:53:44,990 INFO L276 IsEmpty]: Start isEmpty. Operand 2234 states and 2699 transitions. [2020-08-22 19:53:45,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2020-08-22 19:53:45,004 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:53:45,005 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:53:45,005 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 19:53:45,006 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:53:45,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:53:45,007 INFO L82 PathProgramCache]: Analyzing trace with hash -860561599, now seen corresponding path program 1 times [2020-08-22 19:53:45,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:53:45,008 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [371309353] [2020-08-22 19:53:45,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:53:45,015 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:53:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:45,433 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 19:53:45,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:53:45,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:45,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:53:45,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [371309353] [2020-08-22 19:53:45,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:53:45,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 19:53:45,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536420148] [2020-08-22 19:53:45,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 19:53:45,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:53:45,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 19:53:45,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 19:53:45,600 INFO L87 Difference]: Start difference. First operand 2234 states and 2699 transitions. Second operand 4 states. [2020-08-22 19:53:53,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:53:53,175 INFO L93 Difference]: Finished difference Result 6299 states and 7670 transitions. [2020-08-22 19:53:53,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 19:53:53,176 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 424 [2020-08-22 19:53:53,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:53:53,201 INFO L225 Difference]: With dead ends: 6299 [2020-08-22 19:53:53,201 INFO L226 Difference]: Without dead ends: 4282 [2020-08-22 19:53:53,208 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 19:53:53,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4282 states. [2020-08-22 19:53:53,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4282 to 2236. [2020-08-22 19:53:53,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2236 states. [2020-08-22 19:53:53,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2236 states to 2236 states and 2701 transitions. [2020-08-22 19:53:53,374 INFO L78 Accepts]: Start accepts. Automaton has 2236 states and 2701 transitions. Word has length 424 [2020-08-22 19:53:53,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:53:53,375 INFO L479 AbstractCegarLoop]: Abstraction has 2236 states and 2701 transitions. [2020-08-22 19:53:53,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 19:53:53,375 INFO L276 IsEmpty]: Start isEmpty. Operand 2236 states and 2701 transitions. [2020-08-22 19:53:53,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2020-08-22 19:53:53,386 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:53:53,386 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:53:53,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 19:53:53,387 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:53:53,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:53:53,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1010739082, now seen corresponding path program 1 times [2020-08-22 19:53:53,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:53:53,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1044170236] [2020-08-22 19:53:53,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:53:53,392 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:53:53,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:53,848 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 19:53:53,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:53:53,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:53:54,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:53:54,043 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1044170236] [2020-08-22 19:53:54,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:53:54,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 19:53:54,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690523154] [2020-08-22 19:53:54,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 19:53:54,045 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:53:54,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 19:53:54,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 19:53:54,046 INFO L87 Difference]: Start difference. First operand 2236 states and 2701 transitions. Second operand 4 states. [2020-08-22 19:54:01,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:54:01,445 INFO L93 Difference]: Finished difference Result 5992 states and 7288 transitions. [2020-08-22 19:54:01,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 19:54:01,446 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 425 [2020-08-22 19:54:01,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:54:01,469 INFO L225 Difference]: With dead ends: 5992 [2020-08-22 19:54:01,469 INFO L226 Difference]: Without dead ends: 4182 [2020-08-22 19:54:01,477 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 19:54:01,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4182 states. [2020-08-22 19:54:01,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4182 to 4060. [2020-08-22 19:54:01,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4060 states. [2020-08-22 19:54:01,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4060 states to 4060 states and 4932 transitions. [2020-08-22 19:54:01,858 INFO L78 Accepts]: Start accepts. Automaton has 4060 states and 4932 transitions. Word has length 425 [2020-08-22 19:54:01,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:54:01,859 INFO L479 AbstractCegarLoop]: Abstraction has 4060 states and 4932 transitions. [2020-08-22 19:54:01,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 19:54:01,859 INFO L276 IsEmpty]: Start isEmpty. Operand 4060 states and 4932 transitions. [2020-08-22 19:54:01,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2020-08-22 19:54:01,873 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:54:01,876 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:54:01,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 19:54:01,877 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:54:01,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:54:01,878 INFO L82 PathProgramCache]: Analyzing trace with hash 398825718, now seen corresponding path program 1 times [2020-08-22 19:54:01,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:54:01,879 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1742956501] [2020-08-22 19:54:01,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:54:01,883 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:54:02,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:02,646 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 19:54:02,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:54:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:03,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:54:03,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1742956501] [2020-08-22 19:54:03,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:54:03,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 19:54:03,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373992471] [2020-08-22 19:54:03,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 19:54:03,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:54:03,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 19:54:03,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 19:54:03,064 INFO L87 Difference]: Start difference. First operand 4060 states and 4932 transitions. Second operand 5 states. [2020-08-22 19:54:10,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:54:10,616 INFO L93 Difference]: Finished difference Result 11306 states and 13778 transitions. [2020-08-22 19:54:10,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 19:54:10,617 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 425 [2020-08-22 19:54:10,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:54:10,654 INFO L225 Difference]: With dead ends: 11306 [2020-08-22 19:54:10,654 INFO L226 Difference]: Without dead ends: 7434 [2020-08-22 19:54:10,670 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 19:54:10,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7434 states. [2020-08-22 19:54:11,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7434 to 7321. [2020-08-22 19:54:11,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7321 states. [2020-08-22 19:54:11,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 8875 transitions. [2020-08-22 19:54:11,354 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 8875 transitions. Word has length 425 [2020-08-22 19:54:11,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:54:11,355 INFO L479 AbstractCegarLoop]: Abstraction has 7321 states and 8875 transitions. [2020-08-22 19:54:11,355 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 19:54:11,355 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 8875 transitions. [2020-08-22 19:54:11,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2020-08-22 19:54:11,374 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:54:11,375 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:54:11,375 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 19:54:11,376 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:54:11,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:54:11,376 INFO L82 PathProgramCache]: Analyzing trace with hash 481574245, now seen corresponding path program 1 times [2020-08-22 19:54:11,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:54:11,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1160385653] [2020-08-22 19:54:11,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:54:11,381 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:54:11,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:11,930 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 19:54:11,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:54:11,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:12,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:54:12,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1160385653] [2020-08-22 19:54:12,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:54:12,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 19:54:12,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50410823] [2020-08-22 19:54:12,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 19:54:12,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:54:12,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 19:54:12,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 19:54:12,212 INFO L87 Difference]: Start difference. First operand 7321 states and 8875 transitions. Second operand 5 states. [2020-08-22 19:54:19,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:54:19,680 INFO L93 Difference]: Finished difference Result 21038 states and 25512 transitions. [2020-08-22 19:54:19,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 19:54:19,681 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 425 [2020-08-22 19:54:19,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:54:19,743 INFO L225 Difference]: With dead ends: 21038 [2020-08-22 19:54:19,743 INFO L226 Difference]: Without dead ends: 13980 [2020-08-22 19:54:19,770 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 19:54:19,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13980 states. [2020-08-22 19:54:20,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13980 to 13853. [2020-08-22 19:54:20,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13853 states. [2020-08-22 19:54:20,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13853 states to 13853 states and 16718 transitions. [2020-08-22 19:54:20,832 INFO L78 Accepts]: Start accepts. Automaton has 13853 states and 16718 transitions. Word has length 425 [2020-08-22 19:54:20,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:54:20,833 INFO L479 AbstractCegarLoop]: Abstraction has 13853 states and 16718 transitions. [2020-08-22 19:54:20,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 19:54:20,833 INFO L276 IsEmpty]: Start isEmpty. Operand 13853 states and 16718 transitions. [2020-08-22 19:54:20,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2020-08-22 19:54:20,866 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:54:20,867 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:54:20,867 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 19:54:20,868 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:54:20,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:54:20,868 INFO L82 PathProgramCache]: Analyzing trace with hash -2068542717, now seen corresponding path program 1 times [2020-08-22 19:54:20,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:54:20,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1970465241] [2020-08-22 19:54:20,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:54:20,873 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:54:20,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:21,207 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 19:54:21,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:54:21,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:21,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:54:21,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1970465241] [2020-08-22 19:54:21,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:54:21,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 19:54:21,505 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383184946] [2020-08-22 19:54:21,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 19:54:21,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:54:21,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 19:54:21,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 19:54:21,509 INFO L87 Difference]: Start difference. First operand 13853 states and 16718 transitions. Second operand 4 states. [2020-08-22 19:54:30,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:54:30,522 INFO L93 Difference]: Finished difference Result 40968 states and 49482 transitions. [2020-08-22 19:54:30,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 19:54:30,522 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 426 [2020-08-22 19:54:30,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:54:30,607 INFO L225 Difference]: With dead ends: 40968 [2020-08-22 19:54:30,607 INFO L226 Difference]: Without dead ends: 27428 [2020-08-22 19:54:30,649 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 19:54:30,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27428 states. [2020-08-22 19:54:32,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27428 to 13863. [2020-08-22 19:54:32,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13863 states. [2020-08-22 19:54:32,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13863 states to 13863 states and 16728 transitions. [2020-08-22 19:54:32,968 INFO L78 Accepts]: Start accepts. Automaton has 13863 states and 16728 transitions. Word has length 426 [2020-08-22 19:54:32,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:54:32,969 INFO L479 AbstractCegarLoop]: Abstraction has 13863 states and 16728 transitions. [2020-08-22 19:54:32,969 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 19:54:32,969 INFO L276 IsEmpty]: Start isEmpty. Operand 13863 states and 16728 transitions. [2020-08-22 19:54:32,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2020-08-22 19:54:32,996 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:54:32,996 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:54:32,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 19:54:32,997 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:54:32,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:54:32,997 INFO L82 PathProgramCache]: Analyzing trace with hash 148387208, now seen corresponding path program 1 times [2020-08-22 19:54:32,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:54:32,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2095951606] [2020-08-22 19:54:32,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:54:33,002 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:54:33,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:33,398 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 19:54:33,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:54:33,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:33,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:54:33,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2095951606] [2020-08-22 19:54:33,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:54:33,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 19:54:33,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281857030] [2020-08-22 19:54:33,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 19:54:33,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:54:33,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 19:54:33,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 19:54:33,556 INFO L87 Difference]: Start difference. First operand 13863 states and 16728 transitions. Second operand 4 states. [2020-08-22 19:54:42,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:54:42,987 INFO L93 Difference]: Finished difference Result 36258 states and 43746 transitions. [2020-08-22 19:54:42,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 19:54:42,988 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 427 [2020-08-22 19:54:42,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:54:43,069 INFO L225 Difference]: With dead ends: 36258 [2020-08-22 19:54:43,070 INFO L226 Difference]: Without dead ends: 23735 [2020-08-22 19:54:43,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 19:54:43,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23735 states. [2020-08-22 19:54:45,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23735 to 23608. [2020-08-22 19:54:45,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23608 states. [2020-08-22 19:54:45,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23608 states to 23608 states and 28284 transitions. [2020-08-22 19:54:45,563 INFO L78 Accepts]: Start accepts. Automaton has 23608 states and 28284 transitions. Word has length 427 [2020-08-22 19:54:45,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:54:45,564 INFO L479 AbstractCegarLoop]: Abstraction has 23608 states and 28284 transitions. [2020-08-22 19:54:45,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 19:54:45,565 INFO L276 IsEmpty]: Start isEmpty. Operand 23608 states and 28284 transitions. [2020-08-22 19:54:45,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2020-08-22 19:54:45,603 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:54:45,603 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:54:45,604 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 19:54:45,604 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:54:45,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:54:45,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1019816440, now seen corresponding path program 1 times [2020-08-22 19:54:45,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:54:45,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1922495466] [2020-08-22 19:54:45,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:54:45,609 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:54:45,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:46,148 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 19:54:46,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:54:46,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:54:46,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:54:46,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1922495466] [2020-08-22 19:54:46,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:54:46,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 19:54:46,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511854174] [2020-08-22 19:54:46,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 19:54:46,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:54:46,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 19:54:46,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 19:54:46,354 INFO L87 Difference]: Start difference. First operand 23608 states and 28284 transitions. Second operand 5 states. [2020-08-22 19:54:58,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:54:58,390 INFO L93 Difference]: Finished difference Result 67672 states and 81016 transitions. [2020-08-22 19:54:58,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 19:54:58,393 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 427 [2020-08-22 19:54:58,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:54:58,511 INFO L225 Difference]: With dead ends: 67672 [2020-08-22 19:54:58,511 INFO L226 Difference]: Without dead ends: 44353 [2020-08-22 19:54:58,585 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 19:54:58,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44353 states. [2020-08-22 19:55:03,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44353 to 44245. [2020-08-22 19:55:03,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44245 states. [2020-08-22 19:55:03,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44245 states to 44245 states and 52612 transitions. [2020-08-22 19:55:03,810 INFO L78 Accepts]: Start accepts. Automaton has 44245 states and 52612 transitions. Word has length 427 [2020-08-22 19:55:03,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:55:03,811 INFO L479 AbstractCegarLoop]: Abstraction has 44245 states and 52612 transitions. [2020-08-22 19:55:03,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 19:55:03,811 INFO L276 IsEmpty]: Start isEmpty. Operand 44245 states and 52612 transitions. [2020-08-22 19:55:03,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2020-08-22 19:55:03,884 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:55:03,885 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:55:03,885 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 19:55:03,885 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:55:03,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:55:03,886 INFO L82 PathProgramCache]: Analyzing trace with hash 996725519, now seen corresponding path program 1 times [2020-08-22 19:55:03,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:55:03,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [921143646] [2020-08-22 19:55:03,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:55:03,890 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:55:03,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:55:04,411 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 19:55:04,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:55:04,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:55:04,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:55:04,678 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [921143646] [2020-08-22 19:55:04,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:55:04,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 19:55:04,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167010442] [2020-08-22 19:55:04,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 19:55:04,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:55:04,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 19:55:04,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 19:55:04,683 INFO L87 Difference]: Start difference. First operand 44245 states and 52612 transitions. Second operand 5 states. [2020-08-22 19:55:18,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:55:18,141 INFO L93 Difference]: Finished difference Result 88958 states and 105723 transitions. [2020-08-22 19:55:18,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 19:55:18,142 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 427 [2020-08-22 19:55:18,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:55:18,234 INFO L225 Difference]: With dead ends: 88958 [2020-08-22 19:55:18,235 INFO L226 Difference]: Without dead ends: 45483 [2020-08-22 19:55:18,461 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 19:55:18,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45483 states. [2020-08-22 19:55:22,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45483 to 44807. [2020-08-22 19:55:22,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44807 states. [2020-08-22 19:55:22,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44807 states to 44807 states and 53221 transitions. [2020-08-22 19:55:22,823 INFO L78 Accepts]: Start accepts. Automaton has 44807 states and 53221 transitions. Word has length 427 [2020-08-22 19:55:22,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:55:22,824 INFO L479 AbstractCegarLoop]: Abstraction has 44807 states and 53221 transitions. [2020-08-22 19:55:22,824 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 19:55:22,824 INFO L276 IsEmpty]: Start isEmpty. Operand 44807 states and 53221 transitions. [2020-08-22 19:55:22,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2020-08-22 19:55:22,867 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:55:22,868 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:55:22,868 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 19:55:22,868 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:55:22,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:55:22,869 INFO L82 PathProgramCache]: Analyzing trace with hash 799242349, now seen corresponding path program 1 times [2020-08-22 19:55:22,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:55:22,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [312169219] [2020-08-22 19:55:22,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:55:22,878 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:55:22,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:55:23,272 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 19:55:23,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:55:23,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:55:23,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:55:23,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [312169219] [2020-08-22 19:55:23,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:55:23,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 19:55:23,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366840537] [2020-08-22 19:55:23,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 19:55:23,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:55:23,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 19:55:23,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 19:55:23,404 INFO L87 Difference]: Start difference. First operand 44807 states and 53221 transitions. Second operand 4 states. [2020-08-22 19:55:41,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:55:41,691 INFO L93 Difference]: Finished difference Result 131339 states and 156141 transitions. [2020-08-22 19:55:41,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 19:55:41,692 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 428 [2020-08-22 19:55:41,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:55:41,874 INFO L225 Difference]: With dead ends: 131339 [2020-08-22 19:55:41,874 INFO L226 Difference]: Without dead ends: 88789 [2020-08-22 19:55:41,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 19:55:42,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88789 states. [2020-08-22 19:55:47,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88789 to 44847. [2020-08-22 19:55:47,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44847 states. [2020-08-22 19:55:47,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44847 states to 44847 states and 53261 transitions. [2020-08-22 19:55:47,537 INFO L78 Accepts]: Start accepts. Automaton has 44847 states and 53261 transitions. Word has length 428 [2020-08-22 19:55:47,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:55:47,538 INFO L479 AbstractCegarLoop]: Abstraction has 44847 states and 53261 transitions. [2020-08-22 19:55:47,538 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 19:55:47,538 INFO L276 IsEmpty]: Start isEmpty. Operand 44847 states and 53261 transitions. [2020-08-22 19:55:47,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2020-08-22 19:55:47,591 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:55:47,591 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:55:47,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-22 19:55:47,592 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:55:47,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:55:47,593 INFO L82 PathProgramCache]: Analyzing trace with hash -658099086, now seen corresponding path program 1 times [2020-08-22 19:55:47,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:55:47,593 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1487326143] [2020-08-22 19:55:47,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:55:47,597 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:55:47,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:55:48,214 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 19:55:48,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:55:48,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:55:48,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:55:48,521 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1487326143] [2020-08-22 19:55:48,521 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:55:48,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 19:55:48,521 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322239166] [2020-08-22 19:55:48,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 19:55:48,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:55:48,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 19:55:48,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 19:55:48,524 INFO L87 Difference]: Start difference. First operand 44847 states and 53261 transitions. Second operand 5 states. [2020-08-22 19:56:03,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:56:03,140 INFO L93 Difference]: Finished difference Result 91203 states and 108173 transitions. [2020-08-22 19:56:03,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 19:56:03,141 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 429 [2020-08-22 19:56:03,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:56:03,247 INFO L225 Difference]: With dead ends: 91203 [2020-08-22 19:56:03,247 INFO L226 Difference]: Without dead ends: 46989 [2020-08-22 19:56:03,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 19:56:03,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46989 states. [2020-08-22 19:56:08,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46989 to 46015. [2020-08-22 19:56:08,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46015 states. [2020-08-22 19:56:09,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46015 states to 46015 states and 54503 transitions. [2020-08-22 19:56:09,075 INFO L78 Accepts]: Start accepts. Automaton has 46015 states and 54503 transitions. Word has length 429 [2020-08-22 19:56:09,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:56:09,076 INFO L479 AbstractCegarLoop]: Abstraction has 46015 states and 54503 transitions. [2020-08-22 19:56:09,076 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 19:56:09,076 INFO L276 IsEmpty]: Start isEmpty. Operand 46015 states and 54503 transitions. [2020-08-22 19:56:09,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2020-08-22 19:56:09,120 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:56:09,120 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:56:09,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-22 19:56:09,121 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:56:09,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:56:09,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1307329007, now seen corresponding path program 1 times [2020-08-22 19:56:09,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:56:09,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1933369194] [2020-08-22 19:56:09,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:56:09,125 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:56:09,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 19:56:09,247 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 19:56:09,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 19:56:09,350 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 19:56:09,788 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 19:56:09,788 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 19:56:09,790 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-22 19:56:09,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 07:56:09 BoogieIcfgContainer [2020-08-22 19:56:09,865 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 19:56:09,868 INFO L168 Benchmark]: Toolchain (without parser) took 167450.20 ms. Allocated memory was 144.7 MB in the beginning and 3.0 GB in the end (delta: 2.9 GB). Free memory was 100.7 MB in the beginning and 1.0 GB in the end (delta: -938.9 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2020-08-22 19:56:09,869 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 144.7 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 19:56:09,870 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1465.16 ms. Allocated memory was 144.7 MB in the beginning and 203.9 MB in the end (delta: 59.2 MB). Free memory was 100.5 MB in the beginning and 163.5 MB in the end (delta: -63.0 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. [2020-08-22 19:56:09,870 INFO L168 Benchmark]: Boogie Preprocessor took 202.86 ms. Allocated memory is still 203.9 MB. Free memory was 163.5 MB in the beginning and 158.3 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. [2020-08-22 19:56:09,871 INFO L168 Benchmark]: RCFGBuilder took 2877.52 ms. Allocated memory was 203.9 MB in the beginning and 250.6 MB in the end (delta: 46.7 MB). Free memory was 158.3 MB in the beginning and 214.9 MB in the end (delta: -56.7 MB). Peak memory consumption was 111.6 MB. Max. memory is 7.1 GB. [2020-08-22 19:56:09,872 INFO L168 Benchmark]: TraceAbstraction took 162893.89 ms. Allocated memory was 250.6 MB in the beginning and 3.0 GB in the end (delta: 2.7 GB). Free memory was 214.9 MB in the beginning and 1.0 GB in the end (delta: -824.7 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2020-08-22 19:56:09,876 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 144.7 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1465.16 ms. Allocated memory was 144.7 MB in the beginning and 203.9 MB in the end (delta: 59.2 MB). Free memory was 100.5 MB in the beginning and 163.5 MB in the end (delta: -63.0 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 202.86 ms. Allocated memory is still 203.9 MB. Free memory was 163.5 MB in the beginning and 158.3 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2877.52 ms. Allocated memory was 203.9 MB in the beginning and 250.6 MB in the end (delta: 46.7 MB). Free memory was 158.3 MB in the beginning and 214.9 MB in the end (delta: -56.7 MB). Peak memory consumption was 111.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 162893.89 ms. Allocated memory was 250.6 MB in the beginning and 3.0 GB in the end (delta: 2.7 GB). Free memory was 214.9 MB in the beginning and 1.0 GB in the end (delta: -824.7 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 793]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1] int __return_main; [L14] msg_t nomsg = (msg_t )-1; [L15] port_t p12 = 0; [L16] char p12_old = '\x0'; [L17] char p12_new = '\x0'; [L18] _Bool ep12 = 0; [L19] port_t p13 = 0; [L20] char p13_old = '\x0'; [L21] char p13_new = '\x0'; [L22] _Bool ep13 = 0; [L23] port_t p21 = 0; [L24] char p21_old = '\x0'; [L25] char p21_new = '\x0'; [L26] _Bool ep21 = 0; [L27] port_t p23 = 0; [L28] char p23_old = '\x0'; [L29] char p23_new = '\x0'; [L30] _Bool ep23 = 0; [L31] port_t p31 = 0; [L32] char p31_old = '\x0'; [L33] char p31_new = '\x0'; [L34] _Bool ep31 = 0; [L35] port_t p32 = 0; [L36] char p32_old = '\x0'; [L37] char p32_new = '\x0'; [L38] _Bool ep32 = 0; [L39] char id1 = '\x0'; [L40] char r1 = '\x0'; [L41] char st1 = '\x0'; [L42] char nl1 = '\x0'; [L43] char m1 = '\x0'; [L44] char max1 = '\x0'; [L45] _Bool mode1 = 0; [L46] char id2 = '\x0'; [L47] char r2 = '\x0'; [L48] char st2 = '\x0'; [L49] char nl2 = '\x0'; [L50] char m2 = '\x0'; [L51] char max2 = '\x0'; [L52] _Bool mode2 = 0; [L53] char id3 = '\x0'; [L54] char r3 = '\x0'; [L55] char st3 = '\x0'; [L56] char nl3 = '\x0'; [L57] char m3 = '\x0'; [L58] char max3 = '\x0'; [L59] _Bool mode3 = 0; [L63] void (*nodes[3])() = { &node1, &node2, &node3 }; [L67] int __return_1708; [L68] int __return_1836; [L69] int __return_1954; [L70] int __return_2075; [L71] int __return_2801; [L72] int __return_2770; [L73] int __return_2712; [L74] int __return_2678; [L75] int __tmp_2199_0; [L76] int __return_2307; [L77] int __return_2212; [L78] int __return_2575; [L79] int __return_2541; [L80] int __return_2462; [L81] int __return_2198; [L84] int main__c1; [L85] int main__i2; [L86] main__c1 = 0 [L87] ep12 = __VERIFIER_nondet_bool() [L88] ep13 = __VERIFIER_nondet_bool() [L89] ep21 = __VERIFIER_nondet_bool() [L90] ep23 = __VERIFIER_nondet_bool() [L91] ep31 = __VERIFIER_nondet_bool() [L92] ep32 = __VERIFIER_nondet_bool() [L93] id1 = __VERIFIER_nondet_char() [L94] r1 = __VERIFIER_nondet_char() [L95] st1 = __VERIFIER_nondet_char() [L96] nl1 = __VERIFIER_nondet_char() [L97] m1 = __VERIFIER_nondet_char() [L98] max1 = __VERIFIER_nondet_char() [L99] mode1 = __VERIFIER_nondet_bool() [L100] id2 = __VERIFIER_nondet_char() [L101] r2 = __VERIFIER_nondet_char() [L102] st2 = __VERIFIER_nondet_char() [L103] nl2 = __VERIFIER_nondet_char() [L104] m2 = __VERIFIER_nondet_char() [L105] max2 = __VERIFIER_nondet_char() [L106] mode2 = __VERIFIER_nondet_bool() [L107] id3 = __VERIFIER_nondet_char() [L108] r3 = __VERIFIER_nondet_char() [L109] st3 = __VERIFIER_nondet_char() [L110] nl3 = __VERIFIER_nondet_char() [L111] m3 = __VERIFIER_nondet_char() [L112] max3 = __VERIFIER_nondet_char() [L113] mode3 = __VERIFIER_nondet_bool() [L115] _Bool init__r121; [L116] _Bool init__r131; [L117] _Bool init__r211; [L118] _Bool init__r231; [L119] _Bool init__r311; [L120] _Bool init__r321; [L121] _Bool init__r122; [L122] int init__tmp; [L123] _Bool init__r132; [L124] int init__tmp___0; [L125] _Bool init__r212; [L126] int init__tmp___1; [L127] _Bool init__r232; [L128] int init__tmp___2; [L129] _Bool init__r312; [L130] int init__tmp___3; [L131] _Bool init__r322; [L132] int init__tmp___4; [L133] int init__tmp___5; [L134] init__r121 = ep12 [L135] init__r131 = ep13 [L136] init__r211 = ep21 [L137] init__r231 = ep23 [L138] init__r311 = ep31 [L139] init__r321 = ep32 [L140] COND FALSE !(!(init__r121 == 0)) [L2910] COND FALSE !(!(init__r131 == 0)) [L2926] init__tmp = 0 [L144] init__r122 = (_Bool)init__tmp [L145] COND FALSE !(!(init__r131 == 0)) [L2887] COND FALSE !(!(init__r121 == 0)) [L2903] init__tmp___0 = 0 [L149] init__r132 = (_Bool)init__tmp___0 [L150] COND FALSE !(!(init__r211 == 0)) [L2864] COND FALSE !(!(init__r231 == 0)) [L2880] init__tmp___1 = 0 [L154] init__r212 = (_Bool)init__tmp___1 [L155] COND FALSE !(!(init__r231 == 0)) [L2841] COND FALSE !(!(init__r211 == 0)) [L2857] init__tmp___2 = 0 [L159] init__r232 = (_Bool)init__tmp___2 [L160] COND FALSE !(!(init__r311 == 0)) [L2818] COND FALSE !(!(init__r321 == 0)) [L2834] init__tmp___3 = 0 [L164] init__r312 = (_Bool)init__tmp___3 [L165] COND FALSE !(!(init__r321 == 0)) [L2795] COND FALSE !(!(init__r311 == 0)) [L2811] init__tmp___4 = 0 [L169] init__r322 = (_Bool)init__tmp___4 [L170] COND TRUE ((int)id1) != ((int)id2) [L172] COND TRUE ((int)id1) != ((int)id3) [L174] COND TRUE ((int)id2) != ((int)id3) [L176] COND TRUE ((int)id1) >= 0 [L178] COND TRUE ((int)id2) >= 0 [L180] COND TRUE ((int)id3) >= 0 [L182] COND TRUE ((int)r1) == 0 [L184] COND TRUE ((int)r2) == 0 [L186] COND TRUE ((int)r3) == 0 [L188] COND TRUE ((int)max1) == ((int)id1) [L190] COND TRUE ((int)max2) == ((int)id2) [L192] COND TRUE ((int)max3) == ((int)id3) [L194] COND TRUE ((int)st1) == 0 [L196] COND TRUE ((int)st2) == 0 [L198] COND TRUE ((int)st3) == 0 [L200] COND TRUE ((int)nl1) == 0 [L202] COND TRUE ((int)nl2) == 0 [L204] COND TRUE ((int)nl3) == 0 [L206] COND TRUE ((int)mode1) == 0 [L208] COND TRUE ((int)mode2) == 0 [L210] COND TRUE ((int)mode3) == 0 [L212] init__tmp___5 = 1 [L213] __return_1708 = init__tmp___5 [L214] main__i2 = __return_1708 [L215] COND TRUE main__i2 != 0 [L217] p12_old = nomsg [L218] p12_new = nomsg [L219] p13_old = nomsg [L220] p13_new = nomsg [L221] p21_old = nomsg [L222] p21_new = nomsg [L223] p23_old = nomsg [L224] p23_new = nomsg [L225] p31_old = nomsg [L226] p31_new = nomsg [L227] p32_old = nomsg [L228] p32_new = nomsg [L229] main__i2 = 0 [L230] COND TRUE main__i2 < 6 [L233] COND FALSE !(!(mode1 == 0)) [L239] COND TRUE ((int)r1) < 2 [L241] COND FALSE !(!(ep12 == 0)) [L252] COND FALSE !(!(ep13 == 0)) [L263] mode1 = 1 [L265] COND FALSE !(!(mode2 == 0)) [L271] COND TRUE ((int)r2) < 2 [L273] COND FALSE !(!(ep21 == 0)) [L284] COND FALSE !(!(ep23 == 0)) [L295] mode2 = 1 [L297] COND FALSE !(!(mode3 == 0)) [L303] COND TRUE ((int)r3) < 2 [L305] COND FALSE !(!(ep31 == 0)) [L316] COND FALSE !(!(ep32 == 0)) [L327] mode3 = 1 [L328] p12_old = p12_new [L329] p12_new = nomsg [L330] p13_old = p13_new [L331] p13_new = nomsg [L332] p21_old = p21_new [L333] p21_new = nomsg [L334] p23_old = p23_new [L335] p23_new = nomsg [L336] p31_old = p31_new [L337] p31_new = nomsg [L338] p32_old = p32_new [L339] p32_new = nomsg [L341] int check__tmp; [L342] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1 [L344] COND TRUE (((int)st1) + ((int)nl1)) <= 1 [L346] COND TRUE (((int)st2) + ((int)nl2)) <= 1 [L348] COND TRUE (((int)st3) + ((int)nl3)) <= 1 [L350] COND FALSE !(((int)r1) >= 2) [L356] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) == 0 [L358] COND TRUE ((int)r1) < 2 [L360] COND FALSE !(((int)r1) >= 2) [L366] COND TRUE ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0 [L368] COND TRUE ((int)r1) < 2 [L370] check__tmp = 1 [L371] __return_1836 = check__tmp [L372] main__c1 = __return_1836 [L374] _Bool __tmp_1; [L375] __tmp_1 = main__c1 [L376] _Bool assert__arg; [L377] assert__arg = __tmp_1 [L378] COND FALSE !(assert__arg == 0) [L384] int main____CPAchecker_TMP_0 = main__i2; [L385] main__i2 = main__i2 + 1 [L386] COND TRUE main__i2 < 6 [L389] COND TRUE !(mode1 == 0) [L391] r1 = (char)(((int)r1) + 1) [L392] COND FALSE !(!(ep21 == 0)) [L400] COND FALSE !(!(ep31 == 0)) [L408] COND FALSE !(((int)r1) == 2) [L414] mode1 = 0 [L416] COND TRUE !(mode2 == 0) [L418] r2 = (char)(((int)r2) + 1) [L419] COND FALSE !(!(ep12 == 0)) [L427] COND FALSE !(!(ep32 == 0)) [L435] COND FALSE !(((int)r2) == 2) [L441] mode2 = 0 [L443] COND TRUE !(mode3 == 0) [L445] r3 = (char)(((int)r3) + 1) [L446] COND FALSE !(!(ep13 == 0)) [L454] COND FALSE !(!(ep23 == 0)) [L462] COND FALSE !(((int)r3) == 2) [L468] mode3 = 0 [L469] p12_old = p12_new [L470] p12_new = nomsg [L471] p13_old = p13_new [L472] p13_new = nomsg [L473] p21_old = p21_new [L474] p21_new = nomsg [L475] p23_old = p23_new [L476] p23_new = nomsg [L477] p31_old = p31_new [L478] p31_new = nomsg [L479] p32_old = p32_new [L480] p32_new = nomsg [L482] int check__tmp; [L483] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1 [L485] COND TRUE (((int)st1) + ((int)nl1)) <= 1 [L487] COND TRUE (((int)st2) + ((int)nl2)) <= 1 [L489] COND TRUE (((int)st3) + ((int)nl3)) <= 1 [L491] COND FALSE !(((int)r1) >= 2) [L497] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) == 0 [L499] COND TRUE ((int)r1) < 2 [L501] COND FALSE !(((int)r1) >= 2) [L507] COND TRUE ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0 [L509] COND TRUE ((int)r1) < 2 [L511] check__tmp = 1 [L512] __return_1954 = check__tmp [L513] main__c1 = __return_1954 [L515] _Bool __tmp_2; [L516] __tmp_2 = main__c1 [L517] _Bool assert__arg; [L518] assert__arg = __tmp_2 [L519] COND FALSE !(assert__arg == 0) [L525] int main____CPAchecker_TMP_0 = main__i2; [L526] main__i2 = main__i2 + 1 [L527] COND TRUE main__i2 < 6 [L530] COND FALSE !(!(mode1 == 0)) [L536] COND TRUE ((int)r1) < 2 [L538] COND FALSE !(!(ep12 == 0)) [L549] COND FALSE !(!(ep13 == 0)) [L560] mode1 = 1 [L562] COND FALSE !(!(mode2 == 0)) [L568] COND TRUE ((int)r2) < 2 [L570] COND FALSE !(!(ep21 == 0)) [L581] COND FALSE !(!(ep23 == 0)) [L592] mode2 = 1 [L594] COND FALSE !(!(mode3 == 0)) [L600] COND TRUE ((int)r3) < 2 [L602] COND FALSE !(!(ep31 == 0)) [L613] COND FALSE !(!(ep32 == 0)) [L624] mode3 = 1 [L625] p12_old = p12_new [L626] p12_new = nomsg [L627] p13_old = p13_new [L628] p13_new = nomsg [L629] p21_old = p21_new [L630] p21_new = nomsg [L631] p23_old = p23_new [L632] p23_new = nomsg [L633] p31_old = p31_new [L634] p31_new = nomsg [L635] p32_old = p32_new [L636] p32_new = nomsg [L638] int check__tmp; [L639] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1 [L641] COND TRUE (((int)st1) + ((int)nl1)) <= 1 [L643] COND TRUE (((int)st2) + ((int)nl2)) <= 1 [L645] COND TRUE (((int)st3) + ((int)nl3)) <= 1 [L647] COND FALSE !(((int)r1) >= 2) [L653] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) == 0 [L655] COND TRUE ((int)r1) < 2 [L657] COND FALSE !(((int)r1) >= 2) [L663] COND TRUE ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0 [L665] COND TRUE ((int)r1) < 2 [L667] check__tmp = 1 [L668] __return_2075 = check__tmp [L669] main__c1 = __return_2075 [L671] _Bool __tmp_3; [L672] __tmp_3 = main__c1 [L673] _Bool assert__arg; [L674] assert__arg = __tmp_3 [L675] COND FALSE !(assert__arg == 0) [L681] int main____CPAchecker_TMP_0 = main__i2; [L682] main__i2 = main__i2 + 1 [L683] COND TRUE main__i2 < 6 [L686] COND TRUE !(mode1 == 0) [L688] r1 = (char)(((int)r1) + 1) [L689] COND FALSE !(!(ep21 == 0)) [L697] COND FALSE !(!(ep31 == 0)) [L705] COND TRUE ((int)r1) == 2 [L707] COND TRUE ((int)max1) == ((int)id1) [L709] st1 = 1 [L710] mode1 = 0 [L712] COND TRUE !(mode2 == 0) [L714] r2 = (char)(((int)r2) + 1) [L715] COND FALSE !(!(ep12 == 0)) [L723] COND FALSE !(!(ep32 == 0)) [L731] COND TRUE ((int)r2) == 2 [L733] COND TRUE ((int)max2) == ((int)id2) [L735] st2 = 1 [L736] mode2 = 0 [L738] COND TRUE !(mode3 == 0) [L740] r3 = (char)(((int)r3) + 1) [L741] COND FALSE !(!(ep13 == 0)) [L749] COND FALSE !(!(ep23 == 0)) [L757] COND TRUE ((int)r3) == 2 [L759] COND TRUE ((int)max3) == ((int)id3) [L761] st3 = 1 [L762] mode3 = 0 [L763] p12_old = p12_new [L764] p12_new = nomsg [L765] p13_old = p13_new [L766] p13_new = nomsg [L767] p21_old = p21_new [L768] p21_new = nomsg [L769] p23_old = p23_new [L770] p23_new = nomsg [L771] p31_old = p31_new [L772] p31_new = nomsg [L773] p32_old = p32_new [L774] p32_new = nomsg [L776] int check__tmp; [L777] COND FALSE !(((((int)st1) + ((int)st2)) + ((int)st3)) <= 1) [L783] check__tmp = 0 [L784] __return_2801 = check__tmp [L785] main__c1 = __return_2801 [L787] _Bool __tmp_4; [L788] __tmp_4 = main__c1 [L789] _Bool assert__arg; [L790] assert__arg = __tmp_4 [L791] COND TRUE assert__arg == 0 [L793] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 1132 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 162.7s, OverallIterations: 13, TraceHistogramMax: 1, AutomataDifference: 122.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 23073 SDtfs, 17251 SDslu, 13939 SDs, 0 SdLazy, 23660 SolverSat, 137 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 65.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46015occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 28.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 61929 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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 incorrect! Received shutdown request...