/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 19:12:40,549 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 19:12:40,552 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 19:12:40,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 19:12:40,599 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 19:12:40,605 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 19:12:40,608 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 19:12:40,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 19:12:40,616 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 19:12:40,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 19:12:40,625 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 19:12:40,627 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 19:12:40,627 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 19:12:40,631 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 19:12:40,635 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 19:12:40,638 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 19:12:40,639 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 19:12:40,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 19:12:40,651 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 19:12:40,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 19:12:40,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 19:12:40,677 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 19:12:40,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 19:12:40,680 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 19:12:40,683 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 19:12:40,684 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 19:12:40,684 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 19:12:40,685 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 19:12:40,686 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 19:12:40,688 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 19:12:40,688 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 19:12:40,689 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 19:12:40,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 19:12:40,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 19:12:40,693 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 19:12:40,693 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 19:12:40,694 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 19:12:40,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 19:12:40,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 19:12:40,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 19:12:40,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 19:12:40,698 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 19:12:40,727 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 19:12:40,728 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 19:12:40,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 19:12:40,730 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 19:12:40,730 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 19:12:40,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 19:12:40,730 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 19:12:40,731 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 19:12:40,731 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 19:12:40,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 19:12:40,732 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 19:12:40,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 19:12:40,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 19:12:40,732 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 19:12:40,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 19:12:40,733 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 19:12:40,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 19:12:40,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 19:12:40,734 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 19:12:40,734 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 19:12:40,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 19:12:40,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 19:12:40,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 19:12:40,735 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 19:12:40,736 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 19:12:40,736 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 19:12:40,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 19:12:40,736 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 19:12:40,737 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 19:12:40,737 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 19:12:41,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 19:12:41,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 19:12:41,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 19:12:41,245 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 19:12:41,247 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 19:12:41,248 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-28 19:12:41,342 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da1fb4b94/b9470cc9f347472fb8facd0c426e8fc6/FLAG8be5e3f0a [2020-10-28 19:12:42,149 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 19:12:42,150 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-28 19:12:42,167 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da1fb4b94/b9470cc9f347472fb8facd0c426e8fc6/FLAG8be5e3f0a [2020-10-28 19:12:42,388 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da1fb4b94/b9470cc9f347472fb8facd0c426e8fc6 [2020-10-28 19:12:42,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 19:12:42,403 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 19:12:42,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 19:12:42,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 19:12:42,415 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 19:12:42,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 07:12:42" (1/1) ... [2020-10-28 19:12:42,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a7500a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:12:42, skipping insertion in model container [2020-10-28 19:12:42,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 07:12:42" (1/1) ... [2020-10-28 19:12:42,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 19:12:42,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 19:12:43,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 19:12:43,062 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 19:12:43,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 19:12:43,324 INFO L208 MainTranslator]: Completed translation [2020-10-28 19:12:43,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:12:43 WrapperNode [2020-10-28 19:12:43,325 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 19:12:43,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 19:12:43,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 19:12:43,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 19:12:43,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:12:43" (1/1) ... [2020-10-28 19:12:43,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:12:43" (1/1) ... [2020-10-28 19:12:43,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:12:43" (1/1) ... [2020-10-28 19:12:43,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:12:43" (1/1) ... [2020-10-28 19:12:43,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:12:43" (1/1) ... [2020-10-28 19:12:43,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:12:43" (1/1) ... [2020-10-28 19:12:43,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:12:43" (1/1) ... [2020-10-28 19:12:43,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 19:12:43,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 19:12:43,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 19:12:43,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 19:12:43,506 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:12:43" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 19:12:43,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 19:12:43,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 19:12:43,591 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 19:12:43,592 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 19:12:43,592 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 19:12:43,593 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 19:12:43,593 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 19:12:43,593 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 19:12:43,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 19:12:43,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-28 19:12:43,594 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-28 19:12:43,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-28 19:12:43,595 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-28 19:12:43,595 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 19:12:43,595 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-28 19:12:43,596 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-28 19:12:43,596 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-28 19:12:43,597 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-28 19:12:43,597 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-28 19:12:43,597 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-28 19:12:43,597 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-28 19:12:43,597 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 19:12:43,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 19:12:43,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 19:12:43,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 19:12:43,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 19:12:43,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 19:12:43,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 19:12:45,279 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 19:12:45,279 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-28 19:12:45,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 07:12:45 BoogieIcfgContainer [2020-10-28 19:12:45,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 19:12:45,284 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 19:12:45,284 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 19:12:45,288 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 19:12:45,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 07:12:42" (1/3) ... [2020-10-28 19:12:45,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@452e6532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 07:12:45, skipping insertion in model container [2020-10-28 19:12:45,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:12:43" (2/3) ... [2020-10-28 19:12:45,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@452e6532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 07:12:45, skipping insertion in model container [2020-10-28 19:12:45,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 07:12:45" (3/3) ... [2020-10-28 19:12:45,292 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-28 19:12:45,306 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 19:12:45,312 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 19:12:45,327 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 19:12:45,359 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 19:12:45,359 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 19:12:45,359 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 19:12:45,360 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 19:12:45,360 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 19:12:45,360 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 19:12:45,360 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 19:12:45,360 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 19:12:45,388 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states. [2020-10-28 19:12:45,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-28 19:12:45,404 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:12:45,405 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] [2020-10-28 19:12:45,406 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:12:45,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:12:45,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1189511786, now seen corresponding path program 1 times [2020-10-28 19:12:45,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:12:45,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1150994020] [2020-10-28 19:12:45,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:12:46,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:12:46,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:12:46,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:12:46,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:12:46,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:12:47,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:12:47,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:12:48,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:12:49,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:12:50,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:12:51,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:12:51,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 19:12:51,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-28 19:12:51,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-28 19:12:51,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:12:51,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:12:51,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 19:12:51,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 19:12:51,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-28 19:12:51,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 19:12:51,660 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 19:12:51,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:12:51,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:12:51,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:12:51,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:12:51,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:12:51,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:12:51,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 19:12:51,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:12:51,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:12:51,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:12:51,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:12:51,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:12:51,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:12:51,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:12:51,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1150994020] [2020-10-28 19:12:51,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:12:51,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 19:12:51,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728843893] [2020-10-28 19:12:51,766 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 19:12:51,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:12:51,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 19:12:51,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 19:12:51,785 INFO L87 Difference]: Start difference. First operand 279 states. Second operand 5 states. [2020-10-28 19:12:53,866 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 19:12:54,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:12:54,978 INFO L93 Difference]: Finished difference Result 793 states and 1394 transitions. [2020-10-28 19:12:54,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 19:12:54,981 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 103 [2020-10-28 19:12:54,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:12:55,001 INFO L225 Difference]: With dead ends: 793 [2020-10-28 19:12:55,001 INFO L226 Difference]: Without dead ends: 519 [2020-10-28 19:12:55,007 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 19:12:55,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2020-10-28 19:12:55,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 496. [2020-10-28 19:12:55,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-10-28 19:12:55,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 723 transitions. [2020-10-28 19:12:55,114 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 723 transitions. Word has length 103 [2020-10-28 19:12:55,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:12:55,115 INFO L481 AbstractCegarLoop]: Abstraction has 496 states and 723 transitions. [2020-10-28 19:12:55,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 19:12:55,115 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 723 transitions. [2020-10-28 19:12:55,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-28 19:12:55,119 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:12:55,119 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] [2020-10-28 19:12:55,120 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 19:12:55,120 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:12:55,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:12:55,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1940717085, now seen corresponding path program 1 times [2020-10-28 19:12:55,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:12:55,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [446311247] [2020-10-28 19:12:55,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:12:55,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:12:55,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:12:55,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:12:55,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:12:55,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:12:55,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:12:55,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:12:56,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:12:56,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:12:59,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:12:59,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:12:59,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:12:59,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:00,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:13:00,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-28 19:13:00,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-28 19:13:00,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-28 19:13:00,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:13:00,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:13:00,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 19:13:00,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 19:13:00,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-28 19:13:00,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:13:00,713 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 19:13:00,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:13:00,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:13:00,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:00,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:13:00,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:13:00,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:13:00,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 19:13:00,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:13:00,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:13:00,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:13:00,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:13:00,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:13:00,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:13:00,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:13:00,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [446311247] [2020-10-28 19:13:00,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:13:00,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 19:13:00,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983347296] [2020-10-28 19:13:00,829 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 19:13:00,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:13:00,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 19:13:00,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 19:13:00,842 INFO L87 Difference]: Start difference. First operand 496 states and 723 transitions. Second operand 5 states. [2020-10-28 19:13:02,690 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 19:13:03,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:13:03,941 INFO L93 Difference]: Finished difference Result 1277 states and 1872 transitions. [2020-10-28 19:13:03,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 19:13:03,942 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2020-10-28 19:13:03,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:13:03,949 INFO L225 Difference]: With dead ends: 1277 [2020-10-28 19:13:03,950 INFO L226 Difference]: Without dead ends: 946 [2020-10-28 19:13:03,952 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 19:13:03,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2020-10-28 19:13:04,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 933. [2020-10-28 19:13:04,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2020-10-28 19:13:04,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1351 transitions. [2020-10-28 19:13:04,048 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1351 transitions. Word has length 104 [2020-10-28 19:13:04,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:13:04,049 INFO L481 AbstractCegarLoop]: Abstraction has 933 states and 1351 transitions. [2020-10-28 19:13:04,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 19:13:04,049 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1351 transitions. [2020-10-28 19:13:04,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-28 19:13:04,054 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:13:04,054 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] [2020-10-28 19:13:04,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 19:13:04,055 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:13:04,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:13:04,056 INFO L82 PathProgramCache]: Analyzing trace with hash -884285933, now seen corresponding path program 1 times [2020-10-28 19:13:04,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:13:04,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1498033533] [2020-10-28 19:13:04,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:13:04,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:13:04,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:04,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:04,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:04,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:04,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:04,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:05,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:05,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:06,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:09,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:13:09,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 19:13:09,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-28 19:13:09,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-28 19:13:09,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:13:09,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:13:09,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 19:13:09,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 19:13:09,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 19:13:09,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:13:09,692 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 19:13:09,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:13:09,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:13:09,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:09,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:13:09,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:13:09,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:13:09,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 19:13:09,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:13:09,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:13:09,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:13:09,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:13:09,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:13:09,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:13:09,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:13:09,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1498033533] [2020-10-28 19:13:09,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:13:09,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 19:13:09,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872443120] [2020-10-28 19:13:09,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 19:13:09,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:13:09,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 19:13:09,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 19:13:09,801 INFO L87 Difference]: Start difference. First operand 933 states and 1351 transitions. Second operand 5 states. [2020-10-28 19:13:11,547 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 19:13:12,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:13:12,869 INFO L93 Difference]: Finished difference Result 2369 states and 3449 transitions. [2020-10-28 19:13:12,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 19:13:12,870 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 105 [2020-10-28 19:13:12,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:13:12,884 INFO L225 Difference]: With dead ends: 2369 [2020-10-28 19:13:12,888 INFO L226 Difference]: Without dead ends: 1771 [2020-10-28 19:13:12,892 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 19:13:12,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states. [2020-10-28 19:13:13,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 1725. [2020-10-28 19:13:13,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1725 states. [2020-10-28 19:13:13,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1725 states and 2471 transitions. [2020-10-28 19:13:13,028 INFO L78 Accepts]: Start accepts. Automaton has 1725 states and 2471 transitions. Word has length 105 [2020-10-28 19:13:13,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:13:13,032 INFO L481 AbstractCegarLoop]: Abstraction has 1725 states and 2471 transitions. [2020-10-28 19:13:13,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 19:13:13,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1725 states and 2471 transitions. [2020-10-28 19:13:13,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-28 19:13:13,045 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:13:13,046 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] [2020-10-28 19:13:13,046 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 19:13:13,046 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:13:13,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:13:13,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1103742012, now seen corresponding path program 1 times [2020-10-28 19:13:13,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:13:13,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [907544205] [2020-10-28 19:13:13,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:13:13,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:13:13,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:13,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:13,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:13,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:13,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:13,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:14,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:16,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:16,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:18,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:13:18,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-28 19:13:18,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-28 19:13:18,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-28 19:13:18,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:13:18,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:13:18,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 19:13:18,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 19:13:18,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 19:13:18,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:13:18,604 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 19:13:18,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:13:18,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:13:18,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:18,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:13:18,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:13:18,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:13:18,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 19:13:18,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:13:18,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:13:18,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:13:18,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:13:18,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:13:18,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:13:18,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:13:18,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [907544205] [2020-10-28 19:13:18,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:13:18,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 19:13:18,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420582625] [2020-10-28 19:13:18,686 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 19:13:18,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:13:18,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 19:13:18,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 19:13:18,687 INFO L87 Difference]: Start difference. First operand 1725 states and 2471 transitions. Second operand 5 states. [2020-10-28 19:13:20,676 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 19:13:21,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:13:21,955 INFO L93 Difference]: Finished difference Result 4956 states and 7048 transitions. [2020-10-28 19:13:21,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 19:13:21,956 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 106 [2020-10-28 19:13:21,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:13:21,975 INFO L225 Difference]: With dead ends: 4956 [2020-10-28 19:13:21,976 INFO L226 Difference]: Without dead ends: 3312 [2020-10-28 19:13:21,981 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 19:13:21,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3312 states. [2020-10-28 19:13:22,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3312 to 3266. [2020-10-28 19:13:22,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3266 states. [2020-10-28 19:13:22,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3266 states to 3266 states and 4616 transitions. [2020-10-28 19:13:22,276 INFO L78 Accepts]: Start accepts. Automaton has 3266 states and 4616 transitions. Word has length 106 [2020-10-28 19:13:22,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:13:22,277 INFO L481 AbstractCegarLoop]: Abstraction has 3266 states and 4616 transitions. [2020-10-28 19:13:22,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 19:13:22,277 INFO L276 IsEmpty]: Start isEmpty. Operand 3266 states and 4616 transitions. [2020-10-28 19:13:22,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-28 19:13:22,283 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:13:22,283 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] [2020-10-28 19:13:22,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 19:13:22,284 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:13:22,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:13:22,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1645211347, now seen corresponding path program 1 times [2020-10-28 19:13:22,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:13:22,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2139068553] [2020-10-28 19:13:22,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:13:22,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:13:22,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:22,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:22,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:22,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:22,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:22,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:25,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:27,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:13:27,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-28 19:13:27,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 19:13:27,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-28 19:13:27,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:13:27,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:13:27,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 19:13:27,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 19:13:27,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-28 19:13:27,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:13:27,951 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 19:13:27,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:13:27,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:13:27,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:27,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:13:27,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:13:27,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:13:27,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 19:13:27,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:13:27,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:13:27,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:13:27,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:13:27,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:13:27,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:13:28,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:13:28,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2139068553] [2020-10-28 19:13:28,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:13:28,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 19:13:28,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112832481] [2020-10-28 19:13:28,049 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 19:13:28,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:13:28,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 19:13:28,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 19:13:28,052 INFO L87 Difference]: Start difference. First operand 3266 states and 4616 transitions. Second operand 5 states. [2020-10-28 19:13:29,826 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 19:13:31,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:13:31,191 INFO L93 Difference]: Finished difference Result 8360 states and 11909 transitions. [2020-10-28 19:13:31,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 19:13:31,195 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 107 [2020-10-28 19:13:31,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:13:31,226 INFO L225 Difference]: With dead ends: 8360 [2020-10-28 19:13:31,226 INFO L226 Difference]: Without dead ends: 6314 [2020-10-28 19:13:31,232 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 19:13:31,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6314 states. [2020-10-28 19:13:31,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6314 to 6286. [2020-10-28 19:13:31,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6286 states. [2020-10-28 19:13:31,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6286 states to 6286 states and 8775 transitions. [2020-10-28 19:13:31,771 INFO L78 Accepts]: Start accepts. Automaton has 6286 states and 8775 transitions. Word has length 107 [2020-10-28 19:13:31,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:13:31,771 INFO L481 AbstractCegarLoop]: Abstraction has 6286 states and 8775 transitions. [2020-10-28 19:13:31,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 19:13:31,771 INFO L276 IsEmpty]: Start isEmpty. Operand 6286 states and 8775 transitions. [2020-10-28 19:13:31,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-28 19:13:31,782 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:13:31,782 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] [2020-10-28 19:13:31,782 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 19:13:31,782 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:13:31,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:13:31,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1315680613, now seen corresponding path program 1 times [2020-10-28 19:13:31,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:13:31,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [425172719] [2020-10-28 19:13:31,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:13:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:13:31,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:31,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:31,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:31,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:32,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:32,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:36,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:13:36,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 19:13:36,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 19:13:36,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-28 19:13:36,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:13:36,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:13:36,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 19:13:36,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 19:13:36,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-28 19:13:36,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:13:37,235 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 19:13:37,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:13:37,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:13:37,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:37,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:13:37,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:13:37,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:13:37,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 19:13:37,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:13:37,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:13:37,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:13:37,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:13:37,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:13:37,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:13:37,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:13:37,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [425172719] [2020-10-28 19:13:37,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:13:37,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 19:13:37,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705585105] [2020-10-28 19:13:37,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 19:13:37,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:13:37,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 19:13:37,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 19:13:37,293 INFO L87 Difference]: Start difference. First operand 6286 states and 8775 transitions. Second operand 5 states. [2020-10-28 19:13:38,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:13:38,997 INFO L93 Difference]: Finished difference Result 11006 states and 15327 transitions. [2020-10-28 19:13:38,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 19:13:38,998 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 108 [2020-10-28 19:13:38,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:13:39,017 INFO L225 Difference]: With dead ends: 11006 [2020-10-28 19:13:39,017 INFO L226 Difference]: Without dead ends: 4828 [2020-10-28 19:13:39,031 INFO L677 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 [2020-10-28 19:13:39,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4828 states. [2020-10-28 19:13:39,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4828 to 4828. [2020-10-28 19:13:39,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4828 states. [2020-10-28 19:13:39,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4828 states to 4828 states and 6729 transitions. [2020-10-28 19:13:39,434 INFO L78 Accepts]: Start accepts. Automaton has 4828 states and 6729 transitions. Word has length 108 [2020-10-28 19:13:39,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:13:39,434 INFO L481 AbstractCegarLoop]: Abstraction has 4828 states and 6729 transitions. [2020-10-28 19:13:39,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 19:13:39,435 INFO L276 IsEmpty]: Start isEmpty. Operand 4828 states and 6729 transitions. [2020-10-28 19:13:39,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-28 19:13:39,442 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:13:39,442 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] [2020-10-28 19:13:39,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 19:13:39,443 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:13:39,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:13:39,443 INFO L82 PathProgramCache]: Analyzing trace with hash -625516515, now seen corresponding path program 1 times [2020-10-28 19:13:39,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:13:39,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [646631344] [2020-10-28 19:13:39,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:13:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:13:39,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:39,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:39,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:39,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:39,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:39,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:39,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:44,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:13:44,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-28 19:13:44,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 19:13:44,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-28 19:13:44,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:13:44,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:13:44,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 19:13:44,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 19:13:44,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 19:13:44,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:13:44,935 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 19:13:44,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:13:44,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:13:44,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:44,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:13:44,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:13:44,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:13:44,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 19:13:44,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:13:44,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:13:44,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:13:44,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:13:44,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:13:44,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:13:44,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:13:44,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [646631344] [2020-10-28 19:13:44,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:13:44,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 19:13:44,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923223987] [2020-10-28 19:13:44,994 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 19:13:44,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:13:44,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 19:13:44,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 19:13:44,995 INFO L87 Difference]: Start difference. First operand 4828 states and 6729 transitions. Second operand 5 states. [2020-10-28 19:13:46,630 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 19:13:48,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:13:48,049 INFO L93 Difference]: Finished difference Result 11968 states and 16696 transitions. [2020-10-28 19:13:48,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 19:13:48,050 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2020-10-28 19:13:48,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:13:48,082 INFO L225 Difference]: With dead ends: 11968 [2020-10-28 19:13:48,083 INFO L226 Difference]: Without dead ends: 7833 [2020-10-28 19:13:48,094 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 19:13:48,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7833 states. [2020-10-28 19:13:48,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7833 to 7817. [2020-10-28 19:13:48,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7817 states. [2020-10-28 19:13:48,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7817 states to 7817 states and 10718 transitions. [2020-10-28 19:13:48,868 INFO L78 Accepts]: Start accepts. Automaton has 7817 states and 10718 transitions. Word has length 109 [2020-10-28 19:13:48,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:13:48,868 INFO L481 AbstractCegarLoop]: Abstraction has 7817 states and 10718 transitions. [2020-10-28 19:13:48,868 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 19:13:48,869 INFO L276 IsEmpty]: Start isEmpty. Operand 7817 states and 10718 transitions. [2020-10-28 19:13:48,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-28 19:13:48,880 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:13:48,881 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] [2020-10-28 19:13:48,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 19:13:48,881 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:13:48,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:13:48,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1496900161, now seen corresponding path program 1 times [2020-10-28 19:13:48,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:13:48,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [46229875] [2020-10-28 19:13:48,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:13:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:13:48,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:48,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:49,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:49,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:49,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:49,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:53,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:13:53,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 19:13:53,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 19:13:53,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-28 19:13:53,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:13:53,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:13:53,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 19:13:53,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-28 19:13:53,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-28 19:13:53,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:13:54,381 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 19:13:54,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:13:54,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:13:54,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:54,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:13:54,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:13:54,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:13:54,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 19:13:54,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:13:54,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:13:54,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:13:54,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:13:54,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:13:54,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:13:54,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:13:54,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [46229875] [2020-10-28 19:13:54,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:13:54,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 19:13:54,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180075886] [2020-10-28 19:13:54,438 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 19:13:54,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:13:54,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 19:13:54,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 19:13:54,439 INFO L87 Difference]: Start difference. First operand 7817 states and 10718 transitions. Second operand 5 states. [2020-10-28 19:13:56,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:13:56,136 INFO L93 Difference]: Finished difference Result 13937 states and 19141 transitions. [2020-10-28 19:13:56,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 19:13:56,136 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 111 [2020-10-28 19:13:56,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:13:56,155 INFO L225 Difference]: With dead ends: 13937 [2020-10-28 19:13:56,155 INFO L226 Difference]: Without dead ends: 6355 [2020-10-28 19:13:56,169 INFO L677 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 [2020-10-28 19:13:56,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6355 states. [2020-10-28 19:13:56,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6355 to 6355. [2020-10-28 19:13:56,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6355 states. [2020-10-28 19:13:56,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6355 states to 6355 states and 8706 transitions. [2020-10-28 19:13:56,770 INFO L78 Accepts]: Start accepts. Automaton has 6355 states and 8706 transitions. Word has length 111 [2020-10-28 19:13:56,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:13:56,770 INFO L481 AbstractCegarLoop]: Abstraction has 6355 states and 8706 transitions. [2020-10-28 19:13:56,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 19:13:56,771 INFO L276 IsEmpty]: Start isEmpty. Operand 6355 states and 8706 transitions. [2020-10-28 19:13:56,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-28 19:13:56,782 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:13:56,782 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] [2020-10-28 19:13:56,782 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 19:13:56,783 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:13:56,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:13:56,783 INFO L82 PathProgramCache]: Analyzing trace with hash -120606712, now seen corresponding path program 1 times [2020-10-28 19:13:56,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:13:56,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [613931720] [2020-10-28 19:13:56,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:13:56,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:13:56,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:56,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:56,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:57,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:57,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:13:57,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:01,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:14:01,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 19:14:01,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 19:14:01,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-28 19:14:01,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:14:01,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:14:01,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 19:14:01,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-28 19:14:01,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 19:14:01,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:14:02,209 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 19:14:02,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:14:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:14:02,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:02,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:14:02,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:14:02,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:14:02,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 19:14:02,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:14:02,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:14:02,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:14:02,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:14:02,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:14:02,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:14:02,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:14:02,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [613931720] [2020-10-28 19:14:02,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:14:02,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 19:14:02,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845879456] [2020-10-28 19:14:02,256 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 19:14:02,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:14:02,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 19:14:02,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 19:14:02,257 INFO L87 Difference]: Start difference. First operand 6355 states and 8706 transitions. Second operand 5 states. [2020-10-28 19:14:03,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:14:03,896 INFO L93 Difference]: Finished difference Result 10580 states and 14466 transitions. [2020-10-28 19:14:03,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 19:14:03,897 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 111 [2020-10-28 19:14:03,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:14:03,919 INFO L225 Difference]: With dead ends: 10580 [2020-10-28 19:14:03,920 INFO L226 Difference]: Without dead ends: 4322 [2020-10-28 19:14:03,929 INFO L677 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 [2020-10-28 19:14:03,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4322 states. [2020-10-28 19:14:04,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4322 to 4322. [2020-10-28 19:14:04,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4322 states. [2020-10-28 19:14:04,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4322 states to 4322 states and 5904 transitions. [2020-10-28 19:14:04,290 INFO L78 Accepts]: Start accepts. Automaton has 4322 states and 5904 transitions. Word has length 111 [2020-10-28 19:14:04,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:14:04,290 INFO L481 AbstractCegarLoop]: Abstraction has 4322 states and 5904 transitions. [2020-10-28 19:14:04,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 19:14:04,290 INFO L276 IsEmpty]: Start isEmpty. Operand 4322 states and 5904 transitions. [2020-10-28 19:14:04,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-28 19:14:04,297 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:14:04,297 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] [2020-10-28 19:14:04,297 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 19:14:04,298 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:14:04,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:14:04,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1758520045, now seen corresponding path program 1 times [2020-10-28 19:14:04,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:14:04,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1788948517] [2020-10-28 19:14:04,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:14:04,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:14:04,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:04,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:04,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:04,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:04,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:04,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:06,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:06,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:06,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:06,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:07,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:09,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:14:09,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 19:14:09,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-28 19:14:09,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-28 19:14:09,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:14:09,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:14:09,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 19:14:09,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 19:14:09,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 19:14:09,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:14:09,805 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 19:14:09,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:14:09,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:14:09,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:09,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:14:09,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:14:09,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:14:09,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 19:14:09,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:14:09,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:14:09,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:14:09,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:14:09,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:14:09,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:14:09,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:14:09,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1788948517] [2020-10-28 19:14:09,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:14:09,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 19:14:09,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547585621] [2020-10-28 19:14:09,865 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 19:14:09,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:14:09,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 19:14:09,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 19:14:09,866 INFO L87 Difference]: Start difference. First operand 4322 states and 5904 transitions. Second operand 5 states. [2020-10-28 19:14:10,321 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 19:14:12,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:14:12,951 INFO L93 Difference]: Finished difference Result 7966 states and 10777 transitions. [2020-10-28 19:14:12,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 19:14:12,954 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2020-10-28 19:14:12,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:14:12,966 INFO L225 Difference]: With dead ends: 7966 [2020-10-28 19:14:12,967 INFO L226 Difference]: Without dead ends: 4351 [2020-10-28 19:14:12,975 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 19:14:12,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4351 states. [2020-10-28 19:14:13,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4351 to 4300. [2020-10-28 19:14:13,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4300 states. [2020-10-28 19:14:13,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4300 states to 4300 states and 5840 transitions. [2020-10-28 19:14:13,315 INFO L78 Accepts]: Start accepts. Automaton has 4300 states and 5840 transitions. Word has length 112 [2020-10-28 19:14:13,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:14:13,315 INFO L481 AbstractCegarLoop]: Abstraction has 4300 states and 5840 transitions. [2020-10-28 19:14:13,315 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 19:14:13,315 INFO L276 IsEmpty]: Start isEmpty. Operand 4300 states and 5840 transitions. [2020-10-28 19:14:13,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-28 19:14:13,321 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:14:13,321 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] [2020-10-28 19:14:13,322 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 19:14:13,322 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:14:13,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:14:13,322 INFO L82 PathProgramCache]: Analyzing trace with hash -969553096, now seen corresponding path program 1 times [2020-10-28 19:14:13,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:14:13,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1819060022] [2020-10-28 19:14:13,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:14:13,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:14:13,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:13,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:13,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:13,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:13,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:14,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:14,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:18,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:14:18,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 19:14:18,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 19:14:18,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-28 19:14:18,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:14:18,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:14:18,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 19:14:18,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-28 19:14:18,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 19:14:18,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:14:18,782 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 19:14:18,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:14:18,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:14:18,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:18,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:14:18,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:14:18,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:14:18,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 19:14:18,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:14:18,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:14:18,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:14:18,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:14:18,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:14:18,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:14:18,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:14:18,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1819060022] [2020-10-28 19:14:18,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:14:18,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 19:14:18,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884919409] [2020-10-28 19:14:18,825 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 19:14:18,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:14:18,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 19:14:18,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 19:14:18,826 INFO L87 Difference]: Start difference. First operand 4300 states and 5840 transitions. Second operand 5 states. [2020-10-28 19:14:20,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:14:20,326 INFO L93 Difference]: Finished difference Result 7853 states and 10664 transitions. [2020-10-28 19:14:20,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 19:14:20,327 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 113 [2020-10-28 19:14:20,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:14:20,336 INFO L225 Difference]: With dead ends: 7853 [2020-10-28 19:14:20,336 INFO L226 Difference]: Without dead ends: 3731 [2020-10-28 19:14:20,345 INFO L677 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 [2020-10-28 19:14:20,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3731 states. [2020-10-28 19:14:20,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3731 to 3730. [2020-10-28 19:14:20,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3730 states. [2020-10-28 19:14:20,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3730 states to 3730 states and 5049 transitions. [2020-10-28 19:14:20,748 INFO L78 Accepts]: Start accepts. Automaton has 3730 states and 5049 transitions. Word has length 113 [2020-10-28 19:14:20,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:14:20,748 INFO L481 AbstractCegarLoop]: Abstraction has 3730 states and 5049 transitions. [2020-10-28 19:14:20,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 19:14:20,748 INFO L276 IsEmpty]: Start isEmpty. Operand 3730 states and 5049 transitions. [2020-10-28 19:14:20,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-28 19:14:20,753 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:14:20,753 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] [2020-10-28 19:14:20,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 19:14:20,754 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:14:20,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:14:20,754 INFO L82 PathProgramCache]: Analyzing trace with hash 1125921803, now seen corresponding path program 1 times [2020-10-28 19:14:20,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:14:20,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [813822978] [2020-10-28 19:14:20,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:14:20,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:14:20,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:20,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:20,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:20,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:20,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:20,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:21,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:22,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:22,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:22,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:23,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:25,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:14:25,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-28 19:14:25,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-28 19:14:25,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-28 19:14:25,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:14:25,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:14:25,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 19:14:25,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 19:14:25,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-28 19:14:25,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:14:26,243 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 19:14:26,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:14:26,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:14:26,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:26,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:14:26,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:14:26,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:14:26,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 19:14:26,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:14:26,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:14:26,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:14:26,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:14:26,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:14:26,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:14:26,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:14:26,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [813822978] [2020-10-28 19:14:26,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:14:26,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 19:14:26,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111162361] [2020-10-28 19:14:26,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 19:14:26,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:14:26,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 19:14:26,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 19:14:26,291 INFO L87 Difference]: Start difference. First operand 3730 states and 5049 transitions. Second operand 5 states. [2020-10-28 19:14:26,710 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 19:14:29,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:14:29,344 INFO L93 Difference]: Finished difference Result 6561 states and 8843 transitions. [2020-10-28 19:14:29,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 19:14:29,345 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 114 [2020-10-28 19:14:29,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:14:29,359 INFO L225 Difference]: With dead ends: 6561 [2020-10-28 19:14:29,359 INFO L226 Difference]: Without dead ends: 3785 [2020-10-28 19:14:29,368 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 19:14:29,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3785 states. [2020-10-28 19:14:29,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3785 to 3728. [2020-10-28 19:14:29,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3728 states. [2020-10-28 19:14:29,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3728 states to 3728 states and 5012 transitions. [2020-10-28 19:14:29,735 INFO L78 Accepts]: Start accepts. Automaton has 3728 states and 5012 transitions. Word has length 114 [2020-10-28 19:14:29,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:14:29,735 INFO L481 AbstractCegarLoop]: Abstraction has 3728 states and 5012 transitions. [2020-10-28 19:14:29,736 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 19:14:29,736 INFO L276 IsEmpty]: Start isEmpty. Operand 3728 states and 5012 transitions. [2020-10-28 19:14:29,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-28 19:14:29,741 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:14:29,741 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] [2020-10-28 19:14:29,741 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 19:14:29,741 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:14:29,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:14:29,742 INFO L82 PathProgramCache]: Analyzing trace with hash -485667943, now seen corresponding path program 1 times [2020-10-28 19:14:29,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:14:29,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1297686185] [2020-10-28 19:14:29,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:14:29,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:14:29,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:29,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:29,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:29,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:30,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:30,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:30,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:31,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:31,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:34,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:14:34,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-28 19:14:34,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-28 19:14:34,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-28 19:14:34,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:14:34,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:14:34,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 19:14:34,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-28 19:14:34,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-28 19:14:34,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:14:35,187 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 19:14:35,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:14:35,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:14:35,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:35,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:14:35,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:14:35,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:14:35,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 19:14:35,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:14:35,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:14:35,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:14:35,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:14:35,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:14:35,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:14:35,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:14:35,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1297686185] [2020-10-28 19:14:35,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:14:35,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 19:14:35,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392801202] [2020-10-28 19:14:35,222 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 19:14:35,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:14:35,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 19:14:35,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 19:14:35,223 INFO L87 Difference]: Start difference. First operand 3728 states and 5012 transitions. Second operand 5 states. [2020-10-28 19:14:35,639 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-28 19:14:36,966 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 19:14:38,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:14:38,365 INFO L93 Difference]: Finished difference Result 8817 states and 12791 transitions. [2020-10-28 19:14:38,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 19:14:38,365 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 115 [2020-10-28 19:14:38,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:14:38,381 INFO L225 Difference]: With dead ends: 8817 [2020-10-28 19:14:38,381 INFO L226 Difference]: Without dead ends: 6821 [2020-10-28 19:14:38,388 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 19:14:38,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6821 states. [2020-10-28 19:14:39,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6821 to 6785. [2020-10-28 19:14:39,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6785 states. [2020-10-28 19:14:39,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6785 states to 6785 states and 9743 transitions. [2020-10-28 19:14:39,149 INFO L78 Accepts]: Start accepts. Automaton has 6785 states and 9743 transitions. Word has length 115 [2020-10-28 19:14:39,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:14:39,150 INFO L481 AbstractCegarLoop]: Abstraction has 6785 states and 9743 transitions. [2020-10-28 19:14:39,150 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 19:14:39,150 INFO L276 IsEmpty]: Start isEmpty. Operand 6785 states and 9743 transitions. [2020-10-28 19:14:39,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-28 19:14:39,154 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:14:39,154 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] [2020-10-28 19:14:39,154 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 19:14:39,155 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:14:39,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:14:39,155 INFO L82 PathProgramCache]: Analyzing trace with hash -237191557, now seen corresponding path program 1 times [2020-10-28 19:14:39,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:14:39,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1687818532] [2020-10-28 19:14:39,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:14:39,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:14:39,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:39,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:39,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:39,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:39,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:39,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:44,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:14:44,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-28 19:14:44,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 19:14:44,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-28 19:14:44,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:14:44,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:14:44,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:14:44,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-10-28 19:14:44,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 19:14:44,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:14:44,577 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 19:14:44,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:14:44,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:14:44,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:44,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:14:44,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:14:44,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:14:44,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 19:14:44,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:14:44,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:14:44,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:14:44,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:14:44,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:14:44,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:14:44,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:14:44,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1687818532] [2020-10-28 19:14:44,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:14:44,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 19:14:44,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191776614] [2020-10-28 19:14:44,612 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 19:14:44,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:14:44,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 19:14:44,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 19:14:44,612 INFO L87 Difference]: Start difference. First operand 6785 states and 9743 transitions. Second operand 4 states. [2020-10-28 19:14:46,692 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-28 19:14:47,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:14:47,554 INFO L93 Difference]: Finished difference Result 16270 states and 24188 transitions. [2020-10-28 19:14:47,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 19:14:47,555 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 115 [2020-10-28 19:14:47,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:14:47,567 INFO L225 Difference]: With dead ends: 16270 [2020-10-28 19:14:47,567 INFO L226 Difference]: Without dead ends: 10796 [2020-10-28 19:14:47,577 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 19:14:47,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10796 states. [2020-10-28 19:14:48,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10796 to 10445. [2020-10-28 19:14:48,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10445 states. [2020-10-28 19:14:48,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10445 states to 10445 states and 15405 transitions. [2020-10-28 19:14:48,685 INFO L78 Accepts]: Start accepts. Automaton has 10445 states and 15405 transitions. Word has length 115 [2020-10-28 19:14:48,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:14:48,685 INFO L481 AbstractCegarLoop]: Abstraction has 10445 states and 15405 transitions. [2020-10-28 19:14:48,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 19:14:48,685 INFO L276 IsEmpty]: Start isEmpty. Operand 10445 states and 15405 transitions. [2020-10-28 19:14:48,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-28 19:14:48,689 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:14:48,689 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] [2020-10-28 19:14:48,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 19:14:48,689 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:14:48,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:14:48,690 INFO L82 PathProgramCache]: Analyzing trace with hash -573354972, now seen corresponding path program 1 times [2020-10-28 19:14:48,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:14:48,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [579952532] [2020-10-28 19:14:48,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:14:48,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:14:48,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:48,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:48,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:49,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:53,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:14:53,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-28 19:14:53,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 19:14:53,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-28 19:14:53,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:14:53,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:14:53,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:14:53,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-28 19:14:53,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 19:14:53,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:14:54,113 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 19:14:54,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:14:54,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:14:54,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:54,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:14:54,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:14:54,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:14:54,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 19:14:54,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:14:54,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:14:54,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:14:54,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:14:54,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:14:54,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:14:54,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:14:54,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [579952532] [2020-10-28 19:14:54,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:14:54,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 19:14:54,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860553437] [2020-10-28 19:14:54,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 19:14:54,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:14:54,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 19:14:54,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 19:14:54,147 INFO L87 Difference]: Start difference. First operand 10445 states and 15405 transitions. Second operand 4 states. [2020-10-28 19:14:56,483 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-28 19:14:57,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:14:57,898 INFO L93 Difference]: Finished difference Result 26996 states and 40765 transitions. [2020-10-28 19:14:57,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 19:14:57,899 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 118 [2020-10-28 19:14:57,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:14:57,924 INFO L225 Difference]: With dead ends: 26996 [2020-10-28 19:14:57,924 INFO L226 Difference]: Without dead ends: 17642 [2020-10-28 19:14:57,945 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 19:14:57,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17642 states. [2020-10-28 19:14:59,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17642 to 16943. [2020-10-28 19:14:59,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16943 states. [2020-10-28 19:14:59,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16943 states to 16943 states and 25429 transitions. [2020-10-28 19:14:59,606 INFO L78 Accepts]: Start accepts. Automaton has 16943 states and 25429 transitions. Word has length 118 [2020-10-28 19:14:59,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:14:59,606 INFO L481 AbstractCegarLoop]: Abstraction has 16943 states and 25429 transitions. [2020-10-28 19:14:59,606 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 19:14:59,606 INFO L276 IsEmpty]: Start isEmpty. Operand 16943 states and 25429 transitions. [2020-10-28 19:14:59,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 19:14:59,609 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:14:59,609 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] [2020-10-28 19:14:59,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 19:14:59,609 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:14:59,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:14:59,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1712829576, now seen corresponding path program 1 times [2020-10-28 19:14:59,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:14:59,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [300108797] [2020-10-28 19:14:59,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:14:59,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:14:59,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:59,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:14:59,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:15:00,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:15:00,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:15:04,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:15:04,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 19:15:04,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 19:15:04,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-28 19:15:04,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:15:04,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:15:04,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:15:04,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-10-28 19:15:04,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 19:15:04,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:15:05,047 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 19:15:05,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:15:05,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:15:05,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:15:05,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:15:05,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:15:05,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:15:05,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 19:15:05,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:15:05,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:15:05,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:15:05,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:15:05,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:15:05,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:15:05,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:15:05,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [300108797] [2020-10-28 19:15:05,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:15:05,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 19:15:05,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500727319] [2020-10-28 19:15:05,083 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 19:15:05,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:15:05,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 19:15:05,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 19:15:05,084 INFO L87 Difference]: Start difference. First operand 16943 states and 25429 transitions. Second operand 4 states. [2020-10-28 19:15:07,796 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-28 19:15:09,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:15:09,987 INFO L93 Difference]: Finished difference Result 45762 states and 69834 transitions. [2020-10-28 19:15:09,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 19:15:09,988 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 121 [2020-10-28 19:15:09,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:15:10,024 INFO L225 Difference]: With dead ends: 45762 [2020-10-28 19:15:10,025 INFO L226 Difference]: Without dead ends: 29690 [2020-10-28 19:15:10,044 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 19:15:10,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29690 states. [2020-10-28 19:15:12,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29690 to 28295. [2020-10-28 19:15:12,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28295 states. [2020-10-28 19:15:12,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28295 states to 28295 states and 43115 transitions. [2020-10-28 19:15:12,881 INFO L78 Accepts]: Start accepts. Automaton has 28295 states and 43115 transitions. Word has length 121 [2020-10-28 19:15:12,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:15:12,882 INFO L481 AbstractCegarLoop]: Abstraction has 28295 states and 43115 transitions. [2020-10-28 19:15:12,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 19:15:12,882 INFO L276 IsEmpty]: Start isEmpty. Operand 28295 states and 43115 transitions. [2020-10-28 19:15:12,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-28 19:15:12,885 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:15:12,885 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] [2020-10-28 19:15:12,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 19:15:12,885 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:15:12,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:15:12,886 INFO L82 PathProgramCache]: Analyzing trace with hash 2065123980, now seen corresponding path program 1 times [2020-10-28 19:15:12,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:15:12,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1860866316] [2020-10-28 19:15:12,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:15:12,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:15:12,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:15:12,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:15:14,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:15:14,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-28 19:15:14,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 19:15:14,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1699 [2020-10-28 19:15:14,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:15:14,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:15:14,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:15:14,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:15:14,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 19:15:14,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:15:14,813 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 10 [2020-10-28 19:15:15,193 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 19:15:15,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:15:15,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:15:15,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:15:15,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:15:15,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:15:15,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:15:15,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 19:15:15,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:15:15,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:15:15,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:15:15,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:15:15,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:15:15,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:15:15,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:15:15,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1860866316] [2020-10-28 19:15:15,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:15:15,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 19:15:15,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294508331] [2020-10-28 19:15:15,245 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 19:15:15,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:15:15,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 19:15:15,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-28 19:15:15,246 INFO L87 Difference]: Start difference. First operand 28295 states and 43115 transitions. Second operand 6 states. [2020-10-28 19:15:15,687 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-28 19:15:17,059 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-28 19:15:23,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:15:23,256 INFO L93 Difference]: Finished difference Result 81610 states and 125331 transitions. [2020-10-28 19:15:23,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 19:15:23,257 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 124 [2020-10-28 19:15:23,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:15:23,363 INFO L225 Difference]: With dead ends: 81610 [2020-10-28 19:15:23,363 INFO L226 Difference]: Without dead ends: 54370 [2020-10-28 19:15:23,393 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-28 19:15:23,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54370 states. [2020-10-28 19:15:29,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54370 to 54328. [2020-10-28 19:15:29,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54328 states. [2020-10-28 19:15:29,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54328 states to 54328 states and 83019 transitions. [2020-10-28 19:15:29,148 INFO L78 Accepts]: Start accepts. Automaton has 54328 states and 83019 transitions. Word has length 124 [2020-10-28 19:15:29,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:15:29,148 INFO L481 AbstractCegarLoop]: Abstraction has 54328 states and 83019 transitions. [2020-10-28 19:15:29,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 19:15:29,148 INFO L276 IsEmpty]: Start isEmpty. Operand 54328 states and 83019 transitions. [2020-10-28 19:15:29,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-28 19:15:29,151 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:15:29,152 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] [2020-10-28 19:15:29,152 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-28 19:15:29,152 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:15:29,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:15:29,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1351492281, now seen corresponding path program 1 times [2020-10-28 19:15:29,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:15:29,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1096289248] [2020-10-28 19:15:29,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:15:29,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 19:15:29,201 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 19:15:29,202 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 19:15:29,207 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-28 19:15:29,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 07:15:29 BoogieIcfgContainer [2020-10-28 19:15:29,257 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 19:15:29,258 INFO L168 Benchmark]: Toolchain (without parser) took 166861.67 ms. Allocated memory was 151.0 MB in the beginning and 2.6 GB in the end (delta: 2.5 GB). Free memory was 125.6 MB in the beginning and 1.9 GB in the end (delta: -1.7 GB). Peak memory consumption was 768.6 MB. Max. memory is 8.0 GB. [2020-10-28 19:15:29,259 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 123.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 19:15:29,259 INFO L168 Benchmark]: CACSL2BoogieTranslator took 915.76 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 132.2 MB in the end (delta: -7.3 MB). Peak memory consumption was 28.2 MB. Max. memory is 8.0 GB. [2020-10-28 19:15:29,260 INFO L168 Benchmark]: Boogie Preprocessor took 173.63 ms. Allocated memory is still 151.0 MB. Free memory was 132.2 MB in the beginning and 128.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-28 19:15:29,261 INFO L168 Benchmark]: RCFGBuilder took 1780.87 ms. Allocated memory is still 151.0 MB. Free memory was 128.0 MB in the beginning and 102.9 MB in the end (delta: 25.1 MB). Peak memory consumption was 83.9 MB. Max. memory is 8.0 GB. [2020-10-28 19:15:29,261 INFO L168 Benchmark]: TraceAbstraction took 163972.79 ms. Allocated memory was 151.0 MB in the beginning and 2.6 GB in the end (delta: 2.5 GB). Free memory was 102.4 MB in the beginning and 1.9 GB in the end (delta: -1.7 GB). Peak memory consumption was 744.1 MB. Max. memory is 8.0 GB. [2020-10-28 19:15:29,263 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 123.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 915.76 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 132.2 MB in the end (delta: -7.3 MB). Peak memory consumption was 28.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 173.63 ms. Allocated memory is still 151.0 MB. Free memory was 132.2 MB in the beginning and 128.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1780.87 ms. Allocated memory is still 151.0 MB. Free memory was 128.0 MB in the beginning and 102.9 MB in the end (delta: 25.1 MB). Peak memory consumption was 83.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 163972.79 ms. Allocated memory was 151.0 MB in the beginning and 2.6 GB in the end (delta: 2.5 GB). Free memory was 102.4 MB in the beginning and 1.9 GB in the end (delta: -1.7 GB). Peak memory consumption was 744.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1] int __return_main; [L17] msg_t nomsg = (msg_t )-1; [L18] port_t p12 = 0; [L19] char p12_old = '\x0'; [L20] char p12_new = '\x0'; [L21] _Bool ep12 = 0; [L22] port_t p13 = 0; [L23] char p13_old = '\x0'; [L24] char p13_new = '\x0'; [L25] _Bool ep13 = 0; [L26] port_t p21 = 0; [L27] char p21_old = '\x0'; [L28] char p21_new = '\x0'; [L29] _Bool ep21 = 0; [L30] port_t p23 = 0; [L31] char p23_old = '\x0'; [L32] char p23_new = '\x0'; [L33] _Bool ep23 = 0; [L34] port_t p31 = 0; [L35] char p31_old = '\x0'; [L36] char p31_new = '\x0'; [L37] _Bool ep31 = 0; [L38] port_t p32 = 0; [L39] char p32_old = '\x0'; [L40] char p32_new = '\x0'; [L41] _Bool ep32 = 0; [L42] char id1 = '\x0'; [L43] unsigned char r1 = '\x0'; [L44] char st1 = '\x0'; [L45] char nl1 = '\x0'; [L46] char m1 = '\x0'; [L47] char max1 = '\x0'; [L48] _Bool mode1 = 0; [L49] _Bool newmax1 = 0; [L50] char id2 = '\x0'; [L51] unsigned char r2 = '\x0'; [L52] char st2 = '\x0'; [L53] char nl2 = '\x0'; [L54] char m2 = '\x0'; [L55] char max2 = '\x0'; [L56] _Bool mode2 = 0; [L57] _Bool newmax2 = 0; [L58] char id3 = '\x0'; [L59] unsigned char r3 = '\x0'; [L60] char st3 = '\x0'; [L61] char nl3 = '\x0'; [L62] char m3 = '\x0'; [L63] char max3 = '\x0'; [L64] _Bool mode3 = 0; [L65] _Bool newmax3 = 0; [L69] void (*nodes[3])() = { &node1, &node2, &node3 }; [L73] int __return_1248; [L74] int __return_1394; [L75] int __return_1872; [L76] int __return_1528; [L77] int __return_1653; [L80] int main__c1; [L81] int main__i2; [L82] main__c1 = 0 [L83] ep12 = __VERIFIER_nondet_bool() [L84] ep13 = __VERIFIER_nondet_bool() [L85] ep21 = __VERIFIER_nondet_bool() [L86] ep23 = __VERIFIER_nondet_bool() [L87] ep31 = __VERIFIER_nondet_bool() [L88] ep32 = __VERIFIER_nondet_bool() [L89] id1 = __VERIFIER_nondet_char() [L90] r1 = __VERIFIER_nondet_uchar() [L91] st1 = __VERIFIER_nondet_char() [L92] nl1 = __VERIFIER_nondet_char() [L93] m1 = __VERIFIER_nondet_char() [L94] max1 = __VERIFIER_nondet_char() [L95] mode1 = __VERIFIER_nondet_bool() [L96] newmax1 = __VERIFIER_nondet_bool() [L97] id2 = __VERIFIER_nondet_char() [L98] r2 = __VERIFIER_nondet_uchar() [L99] st2 = __VERIFIER_nondet_char() [L100] nl2 = __VERIFIER_nondet_char() [L101] m2 = __VERIFIER_nondet_char() [L102] max2 = __VERIFIER_nondet_char() [L103] mode2 = __VERIFIER_nondet_bool() [L104] newmax2 = __VERIFIER_nondet_bool() [L105] id3 = __VERIFIER_nondet_char() [L106] r3 = __VERIFIER_nondet_uchar() [L107] st3 = __VERIFIER_nondet_char() [L108] nl3 = __VERIFIER_nondet_char() [L109] m3 = __VERIFIER_nondet_char() [L110] max3 = __VERIFIER_nondet_char() [L111] mode3 = __VERIFIER_nondet_bool() [L112] newmax3 = __VERIFIER_nondet_bool() [L114] _Bool init__r121; [L115] _Bool init__r131; [L116] _Bool init__r211; [L117] _Bool init__r231; [L118] _Bool init__r311; [L119] _Bool init__r321; [L120] _Bool init__r122; [L121] int init__tmp; [L122] _Bool init__r132; [L123] int init__tmp___0; [L124] _Bool init__r212; [L125] int init__tmp___1; [L126] _Bool init__r232; [L127] int init__tmp___2; [L128] _Bool init__r312; [L129] int init__tmp___3; [L130] _Bool init__r322; [L131] int init__tmp___4; [L132] int init__tmp___5; [L133] init__r121 = ep12 [L134] init__r131 = ep13 [L135] init__r211 = ep21 [L136] init__r231 = ep23 [L137] init__r311 = ep31 [L138] init__r321 = ep32 [L139] COND TRUE !(init__r121 == 0) [L141] init__tmp = 1 [L143] init__r122 = (_Bool)init__tmp [L144] COND FALSE !(!(init__r131 == 0)) [L1969] COND TRUE !(init__r121 == 0) [L1971] COND TRUE !(ep23 == 0) [L1973] init__tmp___0 = 1 [L148] init__r132 = (_Bool)init__tmp___0 [L149] COND FALSE !(!(init__r211 == 0)) [L1946] COND TRUE !(init__r231 == 0) [L1948] COND TRUE !(ep31 == 0) [L1950] init__tmp___1 = 1 [L153] init__r212 = (_Bool)init__tmp___1 [L154] COND TRUE !(init__r231 == 0) [L156] init__tmp___2 = 1 [L158] init__r232 = (_Bool)init__tmp___2 [L159] COND TRUE !(init__r311 == 0) [L161] init__tmp___3 = 1 [L163] init__r312 = (_Bool)init__tmp___3 [L164] COND FALSE !(!(init__r321 == 0)) [L1877] COND TRUE !(init__r311 == 0) [L1879] COND TRUE !(ep12 == 0) [L1881] init__tmp___4 = 1 [L168] init__r322 = (_Bool)init__tmp___4 [L169] COND TRUE ((int)id1) != ((int)id2) [L171] COND TRUE ((int)id1) != ((int)id3) [L173] COND TRUE ((int)id2) != ((int)id3) [L175] COND TRUE ((int)id1) >= 0 [L177] COND TRUE ((int)id2) >= 0 [L179] COND TRUE ((int)id3) >= 0 [L181] COND TRUE ((int)r1) == 0 [L183] COND TRUE ((int)r2) == 0 [L185] COND TRUE ((int)r3) == 0 [L187] COND TRUE !(init__r122 == 0) [L189] COND TRUE !(init__r132 == 0) [L191] COND TRUE !(init__r212 == 0) [L193] COND TRUE !(init__r232 == 0) [L195] COND TRUE !(init__r312 == 0) [L197] COND TRUE !(init__r322 == 0) [L199] COND TRUE ((int)max1) == ((int)id1) [L201] COND TRUE ((int)max2) == ((int)id2) [L203] COND TRUE ((int)max3) == ((int)id3) [L205] COND TRUE ((int)st1) == 0 [L207] COND TRUE ((int)st2) == 0 [L209] COND TRUE ((int)st3) == 0 [L211] COND TRUE ((int)nl1) == 0 [L213] COND TRUE ((int)nl2) == 0 [L215] COND TRUE ((int)nl3) == 0 [L217] COND TRUE ((int)mode1) == 0 [L219] COND TRUE ((int)mode2) == 0 [L221] COND TRUE ((int)mode3) == 0 [L223] COND TRUE !(newmax1 == 0) [L225] COND TRUE !(newmax2 == 0) [L227] COND TRUE !(newmax3 == 0) [L229] init__tmp___5 = 1 [L230] __return_1248 = init__tmp___5 [L231] main__i2 = __return_1248 [L232] COND TRUE main__i2 != 0 [L234] p12_old = nomsg [L235] p12_new = nomsg [L236] p13_old = nomsg [L237] p13_new = nomsg [L238] p21_old = nomsg [L239] p21_new = nomsg [L240] p23_old = nomsg [L241] p23_new = nomsg [L242] p31_old = nomsg [L243] p31_new = nomsg [L244] p32_old = nomsg [L245] p32_new = nomsg [L246] main__i2 = 0 [L248] _Bool node1__newmax; [L249] node1__newmax = 0 [L250] COND FALSE !(!(mode1 == 0)) [L256] COND TRUE ((int)r1) < 2 [L258] COND TRUE !(ep12 == 0) [L260] COND TRUE !(newmax1 == 0) [L262] int node1____CPAchecker_TMP_0; [L263] COND TRUE max1 != nomsg [L265] COND TRUE p12_new == nomsg [L267] node1____CPAchecker_TMP_0 = max1 [L269] p12_new = node1____CPAchecker_TMP_0 [L271] COND FALSE !(!(ep13 == 0)) [L284] mode1 = 1 [L286] _Bool node2__newmax; [L287] node2__newmax = 0 [L288] COND FALSE !(!(mode2 == 0)) [L294] COND TRUE ((int)r2) < 2 [L296] COND FALSE !(!(ep21 == 0)) [L309] COND TRUE !(ep23 == 0) [L311] COND TRUE !(newmax2 == 0) [L313] int node2____CPAchecker_TMP_1; [L314] COND TRUE max2 != nomsg [L316] COND TRUE p23_new == nomsg [L318] node2____CPAchecker_TMP_1 = max2 [L320] p23_new = node2____CPAchecker_TMP_1 [L322] mode2 = 1 [L324] _Bool node3__newmax; [L325] node3__newmax = 0 [L326] COND FALSE !(!(mode3 == 0)) [L332] COND TRUE ((int)r3) < 2 [L334] COND TRUE !(ep31 == 0) [L336] COND TRUE !(newmax3 == 0) [L338] int node3____CPAchecker_TMP_0; [L339] COND TRUE max3 != nomsg [L341] COND TRUE p31_new == nomsg [L343] node3____CPAchecker_TMP_0 = max3 [L345] p31_new = node3____CPAchecker_TMP_0 [L347] COND FALSE !(!(ep32 == 0)) [L360] mode3 = 1 [L361] p12_old = p12_new [L362] p12_new = nomsg [L363] p13_old = p13_new [L364] p13_new = nomsg [L365] p21_old = p21_new [L366] p21_new = nomsg [L367] p23_old = p23_new [L368] p23_new = nomsg [L369] p31_old = p31_new [L370] p31_new = nomsg [L371] p32_old = p32_new [L372] p32_new = nomsg [L374] int check__tmp; [L375] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1 [L377] COND TRUE (((int)st1) + ((int)nl1)) <= 1 [L379] COND TRUE (((int)st2) + ((int)nl2)) <= 1 [L381] COND TRUE (((int)st3) + ((int)nl3)) <= 1 [L383] COND FALSE !(((int)r1) >= 2) [L389] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) == 0 [L391] COND TRUE ((int)r1) < 2 [L393] COND FALSE !(((int)r1) >= 2) [L399] COND TRUE ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0 [L401] COND TRUE ((int)r1) < 2 [L403] check__tmp = 1 [L404] __return_1394 = check__tmp [L405] main__c1 = __return_1394 [L407] _Bool __tmp_1; [L408] __tmp_1 = main__c1 [L409] _Bool assert__arg; [L410] assert__arg = __tmp_1 [L411] COND FALSE !(assert__arg == 0) [L418] _Bool node1__newmax; [L419] node1__newmax = 0 [L420] COND TRUE !(mode1 == 0) [L422] COND FALSE !(r1 == 255) [L428] r1 = r1 + 1 [L429] COND FALSE !(!(ep21 == 0)) [L438] COND TRUE !(ep31 == 0) [L440] m1 = p31_old [L441] p31_old = nomsg [L442] COND FALSE !(((int)m1) > ((int)max1)) [L447] newmax1 = node1__newmax [L448] COND TRUE ((int)r1) == 1 [L450] COND TRUE ((int)max1) == ((int)id1) [L452] st1 = 1 [L453] mode1 = 0 [L455] _Bool node2__newmax; [L456] node2__newmax = 0 [L457] COND TRUE !(mode2 == 0) [L459] COND FALSE !(r2 == 255) [L465] r2 = r2 + 1 [L466] COND TRUE !(ep12 == 0) [L468] m2 = p12_old [L469] p12_old = nomsg [L470] COND TRUE ((int)m2) > ((int)max2) [L472] max2 = m2 [L473] node2__newmax = 1 [L475] COND FALSE !(!(ep32 == 0)) [L484] newmax2 = node2__newmax [L485] COND FALSE !(((int)r2) == 2) [L491] mode2 = 0 [L493] _Bool node3__newmax; [L494] node3__newmax = 0 [L495] COND TRUE !(mode3 == 0) [L497] COND FALSE !(r3 == 255) [L503] r3 = r3 + 1 [L504] COND FALSE !(!(ep13 == 0)) [L513] COND TRUE !(ep23 == 0) [L515] m3 = p23_old [L516] p23_old = nomsg [L517] COND TRUE ((int)m3) > ((int)max3) [L519] max3 = m3 [L520] node3__newmax = 1 [L522] newmax3 = node3__newmax [L523] COND FALSE !(((int)r3) == 2) [L529] mode3 = 0 [L530] p12_old = p12_new [L531] p12_new = nomsg [L532] p13_old = p13_new [L533] p13_new = nomsg [L534] p21_old = p21_new [L535] p21_new = nomsg [L536] p23_old = p23_new [L537] p23_new = nomsg [L538] p31_old = p31_new [L539] p31_new = nomsg [L540] p32_old = p32_new [L541] p32_new = nomsg [L543] int check__tmp; [L544] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1 [L546] COND TRUE (((int)st1) + ((int)nl1)) <= 1 [L548] COND TRUE (((int)st2) + ((int)nl2)) <= 1 [L550] COND TRUE (((int)st3) + ((int)nl3)) <= 1 [L552] COND FALSE !(((int)r1) >= 2) [L558] COND FALSE !(((((int)st1) + ((int)st2)) + ((int)st3)) == 0) [L564] check__tmp = 0 [L565] __return_1872 = check__tmp [L566] main__c1 = __return_1872 [L568] _Bool __tmp_2; [L569] __tmp_2 = main__c1 [L570] _Bool assert__arg; [L571] assert__arg = __tmp_2 [L572] COND TRUE assert__arg == 0 [L574] CALL reach_error() [L4] __assert_fail("0", "pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 283 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 163.8s, OverallIterations: 18, TraceHistogramMax: 1, AutomataDifference: 54.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9234 SDtfs, 8537 SDslu, 7784 SDs, 0 SdLazy, 10058 SolverSat, 199 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 130 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 13.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54328occurred in iteration=17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 16.5s AutomataMinimizationTime, 17 MinimizatonAttempts, 2804 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 90.4s InterpolantComputationTime, 2020 NumberOfCodeBlocks, 2020 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1879 ConstructedInterpolants, 0 QuantifiedInterpolants, 1253166 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...