/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=DEEPEST --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/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 23:11:07,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 23:11:07,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 23:11:07,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 23:11:07,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 23:11:07,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 23:11:07,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 23:11:07,352 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 23:11:07,356 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 23:11:07,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 23:11:07,363 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 23:11:07,364 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 23:11:07,365 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 23:11:07,368 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 23:11:07,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 23:11:07,372 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 23:11:07,374 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 23:11:07,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 23:11:07,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 23:11:07,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 23:11:07,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 23:11:07,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 23:11:07,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 23:11:07,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 23:11:07,409 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 23:11:07,410 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 23:11:07,410 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 23:11:07,411 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 23:11:07,412 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 23:11:07,413 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 23:11:07,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 23:11:07,414 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 23:11:07,415 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 23:11:07,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 23:11:07,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 23:11:07,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 23:11:07,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 23:11:07,419 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 23:11:07,419 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 23:11:07,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 23:11:07,420 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 23:11:07,422 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 [2020-10-27 23:11:07,465 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 23:11:07,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 23:11:07,467 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 23:11:07,467 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 23:11:07,467 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 23:11:07,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 23:11:07,468 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 23:11:07,468 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 23:11:07,468 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 23:11:07,469 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 23:11:07,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 23:11:07,469 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 23:11:07,469 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 23:11:07,469 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 23:11:07,470 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 23:11:07,470 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 23:11:07,470 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 23:11:07,470 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 23:11:07,470 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 23:11:07,471 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 23:11:07,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 23:11:07,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 23:11:07,471 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 23:11:07,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 23:11:07,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 23:11:07,472 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 23:11:07,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 23:11:07,472 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 23:11:07,473 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 23:11:07,473 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 23:11:07,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 23:11:07,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 23:11:07,960 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 23:11:07,962 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 23:11:07,962 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 23:11:07,963 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c [2020-10-27 23:11:08,061 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/596fe2f8b/bd82e3377af14a5b84bc066ed8e4c772/FLAG0c991d187 [2020-10-27 23:11:08,737 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 23:11:08,737 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c [2020-10-27 23:11:08,758 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/596fe2f8b/bd82e3377af14a5b84bc066ed8e4c772/FLAG0c991d187 [2020-10-27 23:11:09,005 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/596fe2f8b/bd82e3377af14a5b84bc066ed8e4c772 [2020-10-27 23:11:09,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 23:11:09,015 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 23:11:09,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 23:11:09,017 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 23:11:09,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 23:11:09,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:11:09" (1/1) ... [2020-10-27 23:11:09,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@127a7bfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:11:09, skipping insertion in model container [2020-10-27 23:11:09,025 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:11:09" (1/1) ... [2020-10-27 23:11:09,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 23:11:09,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 23:11:09,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:11:09,502 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 23:11:09,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:11:09,647 INFO L208 MainTranslator]: Completed translation [2020-10-27 23:11:09,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:11:09 WrapperNode [2020-10-27 23:11:09,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 23:11:09,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 23:11:09,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 23:11:09,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 23:11:09,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:11:09" (1/1) ... [2020-10-27 23:11:09,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:11:09" (1/1) ... [2020-10-27 23:11:09,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:11:09" (1/1) ... [2020-10-27 23:11:09,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:11:09" (1/1) ... [2020-10-27 23:11:09,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:11:09" (1/1) ... [2020-10-27 23:11:09,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:11:09" (1/1) ... [2020-10-27 23:11:09,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:11:09" (1/1) ... [2020-10-27 23:11:09,814 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 23:11:09,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 23:11:09,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 23:11:09,816 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 23:11:09,817 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:11:09" (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 [2020-10-27 23:11:09,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 23:11:09,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 23:11:09,910 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 23:11:09,910 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 23:11:09,911 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-27 23:11:09,912 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-27 23:11:09,912 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-27 23:11:09,912 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-27 23:11:09,912 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 23:11:09,913 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 23:11:09,914 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 23:11:09,914 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 23:11:09,914 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 23:11:09,914 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 23:11:09,914 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 23:11:09,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 23:11:09,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 23:11:09,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-27 23:11:09,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 23:11:09,916 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 23:11:09,916 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 23:11:09,916 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 23:11:09,916 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 23:11:09,917 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-27 23:11:09,917 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-27 23:11:09,917 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-27 23:11:09,917 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-27 23:11:09,917 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 23:11:09,917 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 23:11:09,918 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 23:11:09,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 23:11:09,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 23:11:09,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 23:11:09,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 23:11:09,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 23:11:09,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 23:11:11,830 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 23:11:11,831 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 23:11:11,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:11:11 BoogieIcfgContainer [2020-10-27 23:11:11,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 23:11:11,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 23:11:11,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 23:11:11,840 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 23:11:11,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 11:11:09" (1/3) ... [2020-10-27 23:11:11,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d14badd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:11:11, skipping insertion in model container [2020-10-27 23:11:11,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:11:09" (2/3) ... [2020-10-27 23:11:11,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d14badd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:11:11, skipping insertion in model container [2020-10-27 23:11:11,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:11:11" (3/3) ... [2020-10-27 23:11:11,843 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c [2020-10-27 23:11:11,856 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 23:11:11,862 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 23:11:11,876 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 23:11:11,907 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 23:11:11,907 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 23:11:11,907 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 23:11:11,908 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 23:11:11,908 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 23:11:11,908 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 23:11:11,908 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 23:11:11,908 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 23:11:11,938 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states. [2020-10-27 23:11:11,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-27 23:11:11,955 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:11:11,956 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] [2020-10-27 23:11:11,956 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:11:11,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:11:11,963 INFO L82 PathProgramCache]: Analyzing trace with hash -516337600, now seen corresponding path program 1 times [2020-10-27 23:11:11,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:11:11,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [27291696] [2020-10-27 23:11:11,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:11:12,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:12,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:12,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:12,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-27 23:11:12,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:12,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 608 [2020-10-27 23:11:12,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:12,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:12,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-27 23:11:12,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:12,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 23:11:13,954 WARN L193 SmtUtils]: Spent 852.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:11:13,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:11:13,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:13,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:14,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:14,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:11:14,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:14,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 23:11:14,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:14,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:14,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:14,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:14,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:14,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:11:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:14,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:14,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:14,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-27 23:11:14,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:14,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-27 23:11:14,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:14,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:14,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:14,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:14,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:14,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:11:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:14,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:14,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:14,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:11:14,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:14,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:11:14,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:14,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:14,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:11:14,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:14,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:14,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 23:11:14,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:14,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:14,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:14,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:14,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:14,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:11:14,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:14,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:14,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:11:14,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:14,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:14,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:11:14,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:14,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:14,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:14,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:14,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:14,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:11:14,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:14,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:14,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:11:14,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:14,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:14,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 23:11:14,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:14,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:14,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:14,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:14,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:14,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:11:14,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:14,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:14,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:11:14,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:14,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:14,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-27 23:11:14,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:14,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:14,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:14,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:14,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:14,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:11:14,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:14,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:14,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:11:14,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:14,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:14,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-27 23:11:14,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:14,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:14,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:14,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:11:14,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:14,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:11:14,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:14,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:14,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:11:14,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:14,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:14,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:11:14,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [27291696] [2020-10-27 23:11:14,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:11:14,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 23:11:14,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108613021] [2020-10-27 23:11:14,536 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 23:11:14,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:11:14,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 23:11:14,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-27 23:11:14,555 INFO L87 Difference]: Start difference. First operand 357 states. Second operand 7 states. [2020-10-27 23:11:15,712 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:16,322 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:16,922 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:17,521 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:18,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:11:18,164 INFO L93 Difference]: Finished difference Result 553 states and 925 transitions. [2020-10-27 23:11:18,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 23:11:18,166 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 109 [2020-10-27 23:11:18,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:11:18,184 INFO L225 Difference]: With dead ends: 553 [2020-10-27 23:11:18,185 INFO L226 Difference]: Without dead ends: 389 [2020-10-27 23:11:18,190 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:11:18,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-10-27 23:11:18,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 349. [2020-10-27 23:11:18,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2020-10-27 23:11:18,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 596 transitions. [2020-10-27 23:11:18,327 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 596 transitions. Word has length 109 [2020-10-27 23:11:18,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:11:18,328 INFO L481 AbstractCegarLoop]: Abstraction has 349 states and 596 transitions. [2020-10-27 23:11:18,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 23:11:18,328 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 596 transitions. [2020-10-27 23:11:18,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-27 23:11:18,342 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:11:18,343 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] [2020-10-27 23:11:18,343 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 23:11:18,344 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:11:18,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:11:18,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1411935102, now seen corresponding path program 1 times [2020-10-27 23:11:18,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:11:18,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [690834549] [2020-10-27 23:11:18,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:11:18,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:18,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:19,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:19,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-27 23:11:19,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:19,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1448 [2020-10-27 23:11:19,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:19,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:11:19,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-27 23:11:19,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 23:11:19,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:20,610 WARN L193 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:11:20,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:11:20,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:20,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:20,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:20,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:11:20,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:20,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 23:11:20,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:20,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:20,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:20,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:20,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:20,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:11:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:20,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:20,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:20,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-27 23:11:20,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:20,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-10-27 23:11:20,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:20,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:11:20,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:20,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-27 23:11:20,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:21,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:11:21,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:21,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:21,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:21,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:11:21,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:21,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:11:21,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:21,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:11:21,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 23:11:21,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:11:21,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:21,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 23:11:21,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:21,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:21,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:21,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:21,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:21,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:11:21,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:21,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:21,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:11:21,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:21,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:21,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:11:21,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:21,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:21,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:21,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:21,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:21,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:11:21,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:21,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:21,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:11:21,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:21,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:21,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 23:11:21,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:21,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:21,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:21,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:21,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:21,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:11:21,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:21,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:21,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:11:21,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:21,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:21,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-27 23:11:21,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:21,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:21,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:21,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:21,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:21,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:11:21,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:21,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:21,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:11:21,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:21,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:21,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-27 23:11:21,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:21,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:21,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:21,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:11:21,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:21,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:11:21,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:21,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:21,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:11:21,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:21,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:21,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:11:21,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [690834549] [2020-10-27 23:11:21,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:11:21,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 23:11:21,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936708070] [2020-10-27 23:11:21,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 23:11:21,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:11:21,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 23:11:21,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-27 23:11:21,453 INFO L87 Difference]: Start difference. First operand 349 states and 596 transitions. Second operand 13 states. [2020-10-27 23:11:24,540 WARN L193 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:11:25,204 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-27 23:11:25,994 WARN L193 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:11:26,690 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 289 [2020-10-27 23:11:27,462 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:28,093 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:28,737 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:29,432 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:30,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:11:30,318 INFO L93 Difference]: Finished difference Result 548 states and 913 transitions. [2020-10-27 23:11:30,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 23:11:30,319 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 109 [2020-10-27 23:11:30,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:11:30,326 INFO L225 Difference]: With dead ends: 548 [2020-10-27 23:11:30,326 INFO L226 Difference]: Without dead ends: 389 [2020-10-27 23:11:30,329 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-27 23:11:30,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-10-27 23:11:30,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 349. [2020-10-27 23:11:30,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2020-10-27 23:11:30,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 562 transitions. [2020-10-27 23:11:30,384 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 562 transitions. Word has length 109 [2020-10-27 23:11:30,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:11:30,385 INFO L481 AbstractCegarLoop]: Abstraction has 349 states and 562 transitions. [2020-10-27 23:11:30,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 23:11:30,385 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 562 transitions. [2020-10-27 23:11:30,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-27 23:11:30,388 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:11:30,388 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:11:30,388 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 23:11:30,389 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:11:30,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:11:30,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1879232371, now seen corresponding path program 1 times [2020-10-27 23:11:30,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:11:30,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1166702469] [2020-10-27 23:11:30,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:11:30,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:30,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:30,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:30,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:31,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:35,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:35,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-27 23:11:35,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 23:11:35,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-27 23:11:35,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:35,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 23:11:35,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-27 23:11:35,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 23:11:35,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:11:36,148 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:11:36,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:11:36,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:36,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:36,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:36,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:11:36,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:36,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 23:11:36,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:36,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:36,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:36,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:36,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:11:36,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:11:36,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:36,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:36,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:36,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 23:11:36,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:36,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-10-27 23:11:36,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:36,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:11:36,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:36,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-27 23:11:36,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:36,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:11:36,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:36,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:36,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:36,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:11:36,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:36,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:11:36,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:36,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:36,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:36,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:11:36,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:36,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 23:11:36,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:36,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:36,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:36,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:36,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:36,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 23:11:36,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:36,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:11:36,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:11:36,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:11:36,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:36,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 23:11:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:36,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:36,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:36,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:36,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:36,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-27 23:11:36,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:36,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:11:36,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:11:36,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:11:36,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:11:36,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 23:11:36,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:36,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:36,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:36,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:36,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:36,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 23:11:36,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:36,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:11:36,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:11:36,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:11:36,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:37,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 23:11:37,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:37,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:37,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:37,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:37,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:37,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 23:11:37,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:37,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:11:37,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:11:37,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:11:37,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:37,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 23:11:37,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:37,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:37,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:37,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:11:37,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:37,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:11:37,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:37,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:37,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:11:37,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:11:37,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:37,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:11:37,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1166702469] [2020-10-27 23:11:37,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:11:37,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-27 23:11:37,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850101040] [2020-10-27 23:11:37,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-27 23:11:37,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:11:37,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-27 23:11:37,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2020-10-27 23:11:37,226 INFO L87 Difference]: Start difference. First operand 349 states and 562 transitions. Second operand 18 states. [2020-10-27 23:11:37,946 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-27 23:11:40,789 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:11:41,424 WARN L193 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 23:11:42,070 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-27 23:11:42,493 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:11:43,041 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:11:43,235 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:43,838 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:11:44,053 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:11:44,241 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:11:45,122 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:11:45,353 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:11:45,562 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:11:45,759 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:11:45,944 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:47,183 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:11:47,414 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 23:11:47,633 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:11:47,845 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:11:48,046 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:11:48,241 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:49,939 WARN L193 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2020-10-27 23:11:50,642 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification that was a NOOP. DAG size: 287 [2020-10-27 23:11:50,851 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:11:51,536 WARN L193 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 23:11:51,738 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:11:52,393 WARN L193 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:11:52,597 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:54,015 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 287 [2020-10-27 23:11:55,302 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 23:11:55,529 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-27 23:11:55,742 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:11:55,954 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:11:56,209 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:11:56,447 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 23:11:56,680 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:11:56,894 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:11:58,421 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 23:11:58,661 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:11:58,914 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-27 23:11:59,157 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:11:59,403 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:11:59,707 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-27 23:11:59,927 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:12:00,160 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 23:12:00,399 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:12:02,038 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 23:12:02,286 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 23:12:02,539 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-27 23:12:02,776 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:12:03,009 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:12:03,316 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-27 23:12:03,547 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:12:03,793 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 23:12:05,420 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 23:12:05,682 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:12:05,947 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-27 23:12:06,188 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:12:06,415 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:12:06,721 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-27 23:12:06,942 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:12:08,651 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-27 23:12:09,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:12:09,288 INFO L93 Difference]: Finished difference Result 2270 states and 3644 transitions. [2020-10-27 23:12:09,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2020-10-27 23:12:09,289 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 142 [2020-10-27 23:12:09,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:12:09,307 INFO L225 Difference]: With dead ends: 2270 [2020-10-27 23:12:09,307 INFO L226 Difference]: Without dead ends: 2117 [2020-10-27 23:12:09,314 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2264 ImplicationChecksByTransitivity, 17.3s TimeCoverageRelationStatistics Valid=1335, Invalid=5637, Unknown=0, NotChecked=0, Total=6972 [2020-10-27 23:12:09,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2117 states. [2020-10-27 23:12:09,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2117 to 1690. [2020-10-27 23:12:09,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1690 states. [2020-10-27 23:12:09,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1690 states to 1690 states and 2725 transitions. [2020-10-27 23:12:09,511 INFO L78 Accepts]: Start accepts. Automaton has 1690 states and 2725 transitions. Word has length 142 [2020-10-27 23:12:09,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:12:09,512 INFO L481 AbstractCegarLoop]: Abstraction has 1690 states and 2725 transitions. [2020-10-27 23:12:09,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-27 23:12:09,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1690 states and 2725 transitions. [2020-10-27 23:12:09,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-27 23:12:09,517 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:12:09,518 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:12:09,518 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 23:12:09,518 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:12:09,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:12:09,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1796536954, now seen corresponding path program 1 times [2020-10-27 23:12:09,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:12:09,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1477341883] [2020-10-27 23:12:09,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:12:09,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:09,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:09,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:09,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:11,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:12,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:14,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:14,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-27 23:12:14,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:12:14,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5075 [2020-10-27 23:12:14,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:14,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:12:14,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-27 23:12:14,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-27 23:12:14,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:15,324 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:12:15,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:12:15,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:15,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:15,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:15,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:12:15,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:15,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 23:12:15,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:15,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:12:15,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:15,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:12:15,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:15,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:12:15,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:15,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:15,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:15,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 23:12:15,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:15,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-27 23:12:15,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:15,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:12:15,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:15,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-27 23:12:15,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:15,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:12:15,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:15,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:15,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:15,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:12:15,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:15,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:12:15,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:15,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:15,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:15,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:12:15,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:15,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 23:12:15,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:15,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:15,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:15,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:15,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:15,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 23:12:15,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:15,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:12:15,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:12:15,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:12:15,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:15,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 23:12:15,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:15,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:15,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:15,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:15,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:15,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:12:15,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:15,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:15,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:15,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:12:15,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:15,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 23:12:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:15,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:15,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:15,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:15,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:15,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:12:15,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:15,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:15,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:15,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:12:15,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:15,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 23:12:15,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:15,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:15,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:15,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:15,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:15,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:12:15,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:15,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:15,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:15,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:12:15,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:15,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 23:12:15,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:15,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:15,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:15,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:15,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:15,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:12:15,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:15,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:15,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 23:12:15,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:12:15,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:15,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:12:15,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1477341883] [2020-10-27 23:12:15,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:12:15,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 23:12:15,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237954630] [2020-10-27 23:12:15,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 23:12:15,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:12:15,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 23:12:15,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:12:15,969 INFO L87 Difference]: Start difference. First operand 1690 states and 2725 transitions. Second operand 11 states. [2020-10-27 23:12:16,692 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:12:19,070 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-27 23:12:19,506 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:12:20,059 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:20,262 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:20,445 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:21,055 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:21,285 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:21,478 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:12:22,488 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:22,732 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:22,935 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:12:24,005 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:24,209 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:12:25,557 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:12:26,194 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-27 23:12:27,177 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:12:27,419 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:12:27,623 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 23:12:27,878 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:12:28,903 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:29,136 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:12:29,333 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:12:30,199 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:30,430 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:12:31,343 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:31,573 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:12:32,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:12:32,581 INFO L93 Difference]: Finished difference Result 6959 states and 11201 transitions. [2020-10-27 23:12:32,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-27 23:12:32,582 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 143 [2020-10-27 23:12:32,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:12:32,615 INFO L225 Difference]: With dead ends: 6959 [2020-10-27 23:12:32,616 INFO L226 Difference]: Without dead ends: 5465 [2020-10-27 23:12:32,622 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=335, Invalid=1147, Unknown=0, NotChecked=0, Total=1482 [2020-10-27 23:12:32,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5465 states. [2020-10-27 23:12:32,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5465 to 4323. [2020-10-27 23:12:32,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4323 states. [2020-10-27 23:12:32,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4323 states to 4323 states and 6949 transitions. [2020-10-27 23:12:32,966 INFO L78 Accepts]: Start accepts. Automaton has 4323 states and 6949 transitions. Word has length 143 [2020-10-27 23:12:32,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:12:32,969 INFO L481 AbstractCegarLoop]: Abstraction has 4323 states and 6949 transitions. [2020-10-27 23:12:32,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 23:12:32,970 INFO L276 IsEmpty]: Start isEmpty. Operand 4323 states and 6949 transitions. [2020-10-27 23:12:32,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-27 23:12:32,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:12:32,973 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:12:32,974 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 23:12:32,974 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:12:32,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:12:32,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1383502084, now seen corresponding path program 1 times [2020-10-27 23:12:32,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:12:32,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [229233136] [2020-10-27 23:12:32,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:12:33,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:33,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:33,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:33,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:34,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:34,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:38,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:38,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-27 23:12:38,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:12:38,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-27 23:12:38,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:38,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:12:38,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-27 23:12:38,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-27 23:12:38,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:38,815 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:12:38,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:12:38,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:38,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:38,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:38,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:12:38,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:38,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 23:12:38,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:38,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:12:38,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:38,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:12:38,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:12:38,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:12:38,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:38,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:39,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:39,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 23:12:39,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:39,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-27 23:12:39,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:39,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:12:39,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:39,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-27 23:12:39,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:39,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:12:39,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:39,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:39,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:39,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:12:39,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:39,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:12:39,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:39,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:39,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:39,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:12:39,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:12:39,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 23:12:39,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:39,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:39,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:39,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:39,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:39,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:12:39,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:39,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:39,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:39,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:12:39,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:12:39,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 23:12:39,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:39,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:39,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:39,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:39,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:39,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:12:39,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:39,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:12:39,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:12:39,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:12:39,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:39,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 23:12:39,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:39,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:39,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:39,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:39,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:39,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:12:39,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:39,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:39,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:39,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:12:39,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:39,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 23:12:39,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:39,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:39,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:39,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:39,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:39,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:12:39,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:39,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:39,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:39,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:12:39,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:39,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 23:12:39,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:39,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:39,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:39,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:12:39,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:39,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:12:39,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:39,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:39,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 23:12:39,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:12:39,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:39,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:12:39,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [229233136] [2020-10-27 23:12:39,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:12:39,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 23:12:39,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354968777] [2020-10-27 23:12:39,521 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 23:12:39,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:12:39,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 23:12:39,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:12:39,524 INFO L87 Difference]: Start difference. First operand 4323 states and 6949 transitions. Second operand 11 states. [2020-10-27 23:12:40,175 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 23:12:42,897 WARN L193 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-27 23:12:43,335 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:12:43,905 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-27 23:12:44,516 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:12:44,737 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:44,944 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:45,574 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:12:45,806 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:45,997 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:12:47,065 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:47,256 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:12:48,569 WARN L193 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:12:49,181 WARN L193 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-27 23:12:50,253 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:50,605 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:50,805 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:12:51,144 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:12:51,943 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:12:52,474 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:12:52,734 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 23:12:53,162 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:12:54,191 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:54,443 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:12:54,659 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:12:55,646 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:55,904 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:12:57,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:12:57,274 INFO L93 Difference]: Finished difference Result 20413 states and 32760 transitions. [2020-10-27 23:12:57,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-27 23:12:57,275 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 144 [2020-10-27 23:12:57,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:12:57,371 INFO L225 Difference]: With dead ends: 20413 [2020-10-27 23:12:57,371 INFO L226 Difference]: Without dead ends: 16286 [2020-10-27 23:12:57,389 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2020-10-27 23:12:57,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16286 states. [2020-10-27 23:12:58,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16286 to 12802. [2020-10-27 23:12:58,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12802 states. [2020-10-27 23:12:58,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12802 states to 12802 states and 20507 transitions. [2020-10-27 23:12:58,371 INFO L78 Accepts]: Start accepts. Automaton has 12802 states and 20507 transitions. Word has length 144 [2020-10-27 23:12:58,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:12:58,372 INFO L481 AbstractCegarLoop]: Abstraction has 12802 states and 20507 transitions. [2020-10-27 23:12:58,372 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 23:12:58,372 INFO L276 IsEmpty]: Start isEmpty. Operand 12802 states and 20507 transitions. [2020-10-27 23:12:58,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-27 23:12:58,377 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:12:58,377 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:12:58,377 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 23:12:58,377 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:12:58,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:12:58,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1228411247, now seen corresponding path program 1 times [2020-10-27 23:12:58,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:12:58,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1295493268] [2020-10-27 23:12:58,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:12:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:58,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:58,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:58,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:58,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:01,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:03,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:03,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 23:13:03,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:13:03,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-27 23:13:03,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:03,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:13:03,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-27 23:13:03,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-27 23:13:03,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:04,189 WARN L193 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:13:04,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:13:04,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:04,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:04,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:04,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:13:04,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:04,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 23:13:04,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:04,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:13:04,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:04,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:13:04,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:04,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:13:04,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:04,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:04,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:04,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 23:13:04,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:04,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-27 23:13:04,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:04,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:13:04,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:04,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-27 23:13:04,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:04,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:13:04,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:04,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:04,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:04,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:13:04,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:04,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:13:04,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:04,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:04,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:04,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:13:04,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:04,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 23:13:04,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:04,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:04,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:04,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:13:04,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:04,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:13:04,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:04,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:04,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:04,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:13:04,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:04,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 23:13:04,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:04,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:04,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:04,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:13:04,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:04,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:13:04,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:04,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:04,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:04,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:13:04,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:04,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 23:13:04,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:04,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:04,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:04,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:13:04,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:04,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:13:04,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:04,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:13:04,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:13:04,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:13:04,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:04,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 23:13:04,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:04,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:04,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:04,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:13:04,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:04,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:13:04,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:04,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:04,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:04,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:13:04,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:04,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 23:13:04,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:04,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:04,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:04,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 23:13:04,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:04,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:13:04,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:04,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:04,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 23:13:04,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:13:04,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:04,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:13:04,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1295493268] [2020-10-27 23:13:04,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:13:04,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 23:13:04,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152746638] [2020-10-27 23:13:04,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 23:13:04,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:13:04,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 23:13:04,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:13:04,736 INFO L87 Difference]: Start difference. First operand 12802 states and 20507 transitions. Second operand 11 states. [2020-10-27 23:13:05,452 WARN L193 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 23:13:08,254 WARN L193 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-27 23:13:08,625 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:13:09,160 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:13:09,766 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-27 23:13:10,360 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:13:10,615 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:10,776 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:11,306 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:13:11,480 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:12,697 WARN L193 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-27 23:13:13,322 WARN L193 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:13:14,212 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:14,546 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:13:14,805 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:14,988 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:13:15,666 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:16,192 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:13:16,490 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:16,691 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:13:17,404 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:13:18,015 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 23:13:18,339 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:13:18,551 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:13:19,481 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:13:19,705 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:13:19,894 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:21,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:13:21,580 INFO L93 Difference]: Finished difference Result 69620 states and 111396 transitions. [2020-10-27 23:13:21,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-27 23:13:21,581 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 145 [2020-10-27 23:13:21,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:13:21,833 INFO L225 Difference]: With dead ends: 69620 [2020-10-27 23:13:21,833 INFO L226 Difference]: Without dead ends: 57014 [2020-10-27 23:13:21,893 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2020-10-27 23:13:21,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57014 states. [2020-10-27 23:13:24,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57014 to 44724. [2020-10-27 23:13:24,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44724 states. [2020-10-27 23:13:24,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44724 states to 44724 states and 71415 transitions. [2020-10-27 23:13:24,969 INFO L78 Accepts]: Start accepts. Automaton has 44724 states and 71415 transitions. Word has length 145 [2020-10-27 23:13:24,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:13:24,970 INFO L481 AbstractCegarLoop]: Abstraction has 44724 states and 71415 transitions. [2020-10-27 23:13:24,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 23:13:24,970 INFO L276 IsEmpty]: Start isEmpty. Operand 44724 states and 71415 transitions. [2020-10-27 23:13:24,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-27 23:13:24,975 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:13:24,975 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:13:24,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 23:13:24,975 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:13:24,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:13:24,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1008887163, now seen corresponding path program 1 times [2020-10-27 23:13:24,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:13:24,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358644506] [2020-10-27 23:13:24,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:13:25,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:25,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:25,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:25,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:25,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:28,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:30,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:30,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-27 23:13:30,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:13:30,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-27 23:13:30,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:30,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:13:30,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-27 23:13:30,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-27 23:13:30,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:30,664 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:13:30,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:13:30,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:30,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:30,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:30,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:13:30,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:30,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 23:13:30,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:30,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:13:30,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:30,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:13:30,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:30,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:13:30,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:30,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:30,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:30,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 23:13:30,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:30,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-27 23:13:30,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:30,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:13:30,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:30,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-27 23:13:30,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:30,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:13:30,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:30,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:30,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:30,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:13:30,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:30,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:13:30,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:30,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:30,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:30,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:13:30,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:30,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 23:13:30,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:30,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:31,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:31,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:13:31,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:31,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:13:31,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:31,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:31,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:31,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:13:31,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:31,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 23:13:31,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:31,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:31,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:31,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:13:31,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:31,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:13:31,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:31,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:31,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:31,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:13:31,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:31,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 23:13:31,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:31,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:31,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:31,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:13:31,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:31,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:13:31,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:31,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:31,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:31,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:13:31,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:31,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 23:13:31,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:31,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:31,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:31,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:13:31,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:31,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:13:31,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:31,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:13:31,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:13:31,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:13:31,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:31,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 23:13:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:31,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:31,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:31,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 23:13:31,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:31,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:13:31,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:31,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:31,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:13:31,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:13:31,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:31,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:13:31,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358644506] [2020-10-27 23:13:31,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:13:31,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 23:13:31,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912304713] [2020-10-27 23:13:31,278 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 23:13:31,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:13:31,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 23:13:31,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:13:31,279 INFO L87 Difference]: Start difference. First operand 44724 states and 71415 transitions. Second operand 11 states. [2020-10-27 23:13:31,972 WARN L193 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:13:34,664 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:13:35,068 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:35,606 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:36,205 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:36,829 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:13:37,446 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:37,635 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:13:38,623 WARN L193 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:13:39,295 WARN L193 SmtUtils]: Spent 644.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 23:13:40,321 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:40,896 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:41,107 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:13:41,545 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:41,816 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:42,997 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:43,261 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:13:43,802 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:44,071 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:45,235 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:45,505 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:13:46,065 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:46,345 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:13:47,515 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:13:47,791 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-27 23:13:48,300 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:13:49,349 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:13:54,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:13:54,059 INFO L93 Difference]: Finished difference Result 273065 states and 436326 transitions. [2020-10-27 23:13:54,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-27 23:13:54,060 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 146 [2020-10-27 23:13:54,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:13:55,543 INFO L225 Difference]: With dead ends: 273065 [2020-10-27 23:13:55,544 INFO L226 Difference]: Without dead ends: 228537 [2020-10-27 23:13:55,686 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 386 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=335, Invalid=1147, Unknown=0, NotChecked=0, Total=1482 [2020-10-27 23:13:55,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228537 states. [2020-10-27 23:14:04,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228537 to 179105. [2020-10-27 23:14:04,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179105 states. [2020-10-27 23:14:05,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179105 states to 179105 states and 285761 transitions. [2020-10-27 23:14:05,720 INFO L78 Accepts]: Start accepts. Automaton has 179105 states and 285761 transitions. Word has length 146 [2020-10-27 23:14:05,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:14:05,720 INFO L481 AbstractCegarLoop]: Abstraction has 179105 states and 285761 transitions. [2020-10-27 23:14:05,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 23:14:05,720 INFO L276 IsEmpty]: Start isEmpty. Operand 179105 states and 285761 transitions. [2020-10-27 23:14:05,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-27 23:14:05,743 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:14:05,743 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:14:05,744 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 23:14:05,746 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:14:05,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:14:05,747 INFO L82 PathProgramCache]: Analyzing trace with hash -1133376787, now seen corresponding path program 1 times [2020-10-27 23:14:05,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:14:05,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1124668029] [2020-10-27 23:14:05,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:14:05,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:05,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:05,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:06,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:06,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:09,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:10,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:10,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-27 23:14:10,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:14:10,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-27 23:14:10,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:10,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:14:10,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-27 23:14:10,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-27 23:14:10,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:11,455 WARN L193 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:14:11,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:14:11,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:11,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:11,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:11,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:14:11,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:11,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 23:14:11,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:11,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:14:11,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:14:11,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:14:11,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:11,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:14:11,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:11,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:11,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:11,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 23:14:11,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:11,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 23:14:11,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:11,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:14:11,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:14:11,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:14:11,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:11,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:14:11,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:11,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:11,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:11,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:14:11,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:11,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:14:11,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:11,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:14:11,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:14:11,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:14:11,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:11,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 23:14:11,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:11,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:11,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:11,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:14:11,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:11,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:14:11,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:11,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:14:11,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:14:11,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 23:14:11,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:11,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 23:14:11,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:11,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:11,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:11,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:14:11,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:11,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:14:11,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:11,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:14:11,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:14:11,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:14:11,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:11,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 23:14:11,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:11,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:11,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:11,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:14:11,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:11,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:14:11,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:11,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:14:11,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:14:11,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:14:11,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:11,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 23:14:11,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:11,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:11,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:11,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:14:11,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:11,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:14:11,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:11,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:14:11,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:14:11,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:14:11,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:11,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 23:14:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:11,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:11,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:11,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 23:14:11,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:11,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:14:11,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:11,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:14:11,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:14:11,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:14:11,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:11,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:14:11,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1124668029] [2020-10-27 23:14:11,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:14:11,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 23:14:11,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368341688] [2020-10-27 23:14:11,872 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 23:14:11,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:14:11,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 23:14:11,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-27 23:14:11,875 INFO L87 Difference]: Start difference. First operand 179105 states and 285761 transitions. Second operand 9 states. [2020-10-27 23:14:12,572 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 23:14:14,849 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:14:15,138 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 23:14:15,493 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 23:14:15,797 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:14:16,501 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 23:14:16,857 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:14:17,133 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:14:17,690 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:14:18,518 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:14:18,812 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:14:19,430 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:14:20,274 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:14:20,600 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:14:40,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:14:40,376 INFO L93 Difference]: Finished difference Result 775950 states and 1245277 transitions. [2020-10-27 23:14:40,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 23:14:40,377 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-10-27 23:14:40,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted.