/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_floodmax.4.2.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 22:49:22,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 22:49:22,998 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 22:49:23,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 22:49:23,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 22:49:23,066 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 22:49:23,069 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 22:49:23,074 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 22:49:23,078 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 22:49:23,085 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 22:49:23,086 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 22:49:23,088 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 22:49:23,088 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 22:49:23,091 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 22:49:23,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 22:49:23,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 22:49:23,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 22:49:23,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 22:49:23,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 22:49:23,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 22:49:23,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 22:49:23,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 22:49:23,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 22:49:23,123 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 22:49:23,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 22:49:23,132 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 22:49:23,132 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 22:49:23,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 22:49:23,135 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 22:49:23,136 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 22:49:23,137 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 22:49:23,137 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 22:49:23,139 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 22:49:23,140 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 22:49:23,141 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 22:49:23,142 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 22:49:23,154 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 22:49:23,154 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 22:49:23,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 22:49:23,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 22:49:23,156 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 22:49:23,164 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 22:49:23,211 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 22:49:23,211 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 22:49:23,215 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 22:49:23,216 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 22:49:23,216 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 22:49:23,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 22:49:23,216 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 22:49:23,216 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 22:49:23,217 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 22:49:23,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 22:49:23,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 22:49:23,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 22:49:23,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 22:49:23,218 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 22:49:23,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 22:49:23,219 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 22:49:23,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 22:49:23,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 22:49:23,219 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 22:49:23,220 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 22:49:23,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 22:49:23,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 22:49:23,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 22:49:23,220 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 22:49:23,220 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 22:49:23,221 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 22:49:23,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 22:49:23,221 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 22:49:23,221 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 22:49:23,221 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 22:49:23,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 22:49:23,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 22:49:23,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 22:49:23,699 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 22:49:23,700 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 22:49:23,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c [2020-10-27 22:49:23,791 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1b780848d/5a59d5d2810b44af98046e2c658459ee/FLAG6ea1d74fa [2020-10-27 22:49:24,626 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 22:49:24,626 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c [2020-10-27 22:49:24,642 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1b780848d/5a59d5d2810b44af98046e2c658459ee/FLAG6ea1d74fa [2020-10-27 22:49:24,834 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1b780848d/5a59d5d2810b44af98046e2c658459ee [2020-10-27 22:49:24,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 22:49:24,848 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 22:49:24,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 22:49:24,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 22:49:24,858 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 22:49:24,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:49:24" (1/1) ... [2020-10-27 22:49:24,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fdbbe7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:49:24, skipping insertion in model container [2020-10-27 22:49:24,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:49:24" (1/1) ... [2020-10-27 22:49:24,872 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 22:49:24,945 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 22:49:25,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:49:25,305 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 22:49:25,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:49:25,445 INFO L208 MainTranslator]: Completed translation [2020-10-27 22:49:25,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:49:25 WrapperNode [2020-10-27 22:49:25,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 22:49:25,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 22:49:25,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 22:49:25,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 22:49:25,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:49:25" (1/1) ... [2020-10-27 22:49:25,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:49:25" (1/1) ... [2020-10-27 22:49:25,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:49:25" (1/1) ... [2020-10-27 22:49:25,505 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:49:25" (1/1) ... [2020-10-27 22:49:25,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:49:25" (1/1) ... [2020-10-27 22:49:25,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:49:25" (1/1) ... [2020-10-27 22:49:25,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:49:25" (1/1) ... [2020-10-27 22:49:25,602 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 22:49:25,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 22:49:25,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 22:49:25,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 22:49:25,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:49:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 22:49:25,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 22:49:25,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 22:49:25,706 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 22:49:25,707 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 22:49:25,707 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-27 22:49:25,707 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-27 22:49:25,707 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-27 22:49:25,707 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-27 22:49:25,707 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 22:49:25,708 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 22:49:25,708 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 22:49:25,708 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 22:49:25,708 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 22:49:25,708 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 22:49:25,708 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 22:49:25,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 22:49:25,709 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 22:49:25,709 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-27 22:49:25,709 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 22:49:25,709 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 22:49:25,709 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 22:49:25,709 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 22:49:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 22:49:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-27 22:49:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-27 22:49:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-27 22:49:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-27 22:49:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 22:49:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 22:49:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 22:49:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 22:49:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 22:49:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 22:49:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 22:49:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 22:49:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 22:49:27,473 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 22:49:27,473 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 22:49:27,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:49:27 BoogieIcfgContainer [2020-10-27 22:49:27,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 22:49:27,479 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 22:49:27,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 22:49:27,483 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 22:49:27,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 10:49:24" (1/3) ... [2020-10-27 22:49:27,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a19bc1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:49:27, skipping insertion in model container [2020-10-27 22:49:27,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:49:25" (2/3) ... [2020-10-27 22:49:27,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a19bc1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:49:27, skipping insertion in model container [2020-10-27 22:49:27,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:49:27" (3/3) ... [2020-10-27 22:49:27,487 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.2.ufo.UNBOUNDED.pals.c [2020-10-27 22:49:27,500 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 22:49:27,507 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 22:49:27,522 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 22:49:27,558 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 22:49:27,558 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 22:49:27,558 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 22:49:27,559 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 22:49:27,559 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 22:49:27,559 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 22:49:27,559 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 22:49:27,559 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 22:49:27,588 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states. [2020-10-27 22:49:27,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-27 22:49:27,605 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:49:27,606 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:49:27,607 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:49:27,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:49:27,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1037904158, now seen corresponding path program 1 times [2020-10-27 22:49:27,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:49:27,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1314143283] [2020-10-27 22:49:27,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:49:27,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:49:28,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:49:28,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:49:28,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 22:49:28,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:49:28,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 669 [2020-10-27 22:49:28,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:49:28,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:49:28,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-27 22:49:28,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:49:28,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 22:49:29,370 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-27 22:49:29,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:49:29,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:49:29,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:49:29,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:49:29,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:49:29,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:49:29,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 22:49:29,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:49:29,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:49:29,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:49:29,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:49:29,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:49:29,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:49:29,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:49:29,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:49:29,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:49:29,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-27 22:49:29,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:49:29,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-27 22:49:29,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:49:29,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:49:29,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:49:29,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:49:29,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:49:29,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 22:49:29,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:49:29,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:49:29,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:49:29,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:49:29,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:49:29,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:49:29,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:49:29,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:49:29,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 22:49:29,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:49:29,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:49:29,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 22:49:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:49:29,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:49:29,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:49:29,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:49:29,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:49:29,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:49:29,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:49:29,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:49:29,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:49:29,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:49:29,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:49:29,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 22:49:29,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:49:29,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:49:29,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:49:29,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:49:29,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:49:29,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:49:29,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:49:29,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:49:29,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:49:29,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:49:29,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:49:29,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 22:49:29,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:49:29,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:49:29,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:49:29,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:49:29,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:49:29,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:49:29,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:49:29,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:49:29,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:49:29,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:49:29,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:49:29,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 22:49:29,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:49:29,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:49:29,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:49:29,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:49:29,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:49:29,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:49:29,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:49:29,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:49:29,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:49:29,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:49:29,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:49:29,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-27 22:49:29,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:49:29,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:49:29,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:49:29,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:49:29,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:49:29,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:49:29,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:49:29,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:49:29,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:49:29,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:49:29,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:49:29,860 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 22:49:29,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1314143283] [2020-10-27 22:49:29,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:49:29,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 22:49:29,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444523034] [2020-10-27 22:49:29,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 22:49:29,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:49:29,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 22:49:29,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-27 22:49:29,888 INFO L87 Difference]: Start difference. First operand 345 states. Second operand 7 states. [2020-10-27 22:49:31,094 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:49:31,552 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:49:32,067 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:49:32,606 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:49:33,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:49:33,264 INFO L93 Difference]: Finished difference Result 513 states and 861 transitions. [2020-10-27 22:49:33,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 22:49:33,266 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 105 [2020-10-27 22:49:33,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:49:33,287 INFO L225 Difference]: With dead ends: 513 [2020-10-27 22:49:33,288 INFO L226 Difference]: Without dead ends: 369 [2020-10-27 22:49:33,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:49:33,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2020-10-27 22:49:33,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 337. [2020-10-27 22:49:33,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-10-27 22:49:33,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 580 transitions. [2020-10-27 22:49:33,476 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 580 transitions. Word has length 105 [2020-10-27 22:49:33,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:49:33,477 INFO L481 AbstractCegarLoop]: Abstraction has 337 states and 580 transitions. [2020-10-27 22:49:33,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 22:49:33,477 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 580 transitions. [2020-10-27 22:49:33,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-27 22:49:33,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:49:33,493 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:49:33,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 22:49:33,494 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:49:33,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:49:33,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1286050652, now seen corresponding path program 1 times [2020-10-27 22:49:33,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:49:33,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [27720062] [2020-10-27 22:49:33,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:49:33,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:49:33,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:49:35,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:49:35,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 22:49:35,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:49:35,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1636 [2020-10-27 22:49:35,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:49:35,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:49:35,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-27 22:49:35,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:49:35,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:49:35,947 WARN L193 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-27 22:49:35,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:49:35,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:49:35,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:49:35,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:49:35,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:49:35,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:49:35,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 22:49:35,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:49:35,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:49:35,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:49:35,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:49:35,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:49:35,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:49:36,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:49:36,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:49:36,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:49:36,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-27 22:49:36,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:49:36,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-10-27 22:49:36,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:49:36,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:49:36,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:49:36,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-27 22:49:36,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:49:36,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 22:49:36,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:49:36,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:49:36,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:49:36,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:49:36,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:49:36,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:49:36,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:49:36,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:49:36,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:49:36,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:49:36,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:49:36,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 22:49:36,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:49:36,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:49:36,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:49:36,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:49:36,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:49:36,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:49:36,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:49:36,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:49:36,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:49:36,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:49:36,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:49:36,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 22:49:36,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:49:36,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:49:36,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:49:36,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:49:36,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:49:36,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:49:36,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:49:36,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:49:36,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:49:36,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:49:36,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:49:36,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 22:49:36,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:49:36,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:49:36,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:49:36,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:49:36,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:49:36,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:49:36,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:49:36,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:49:36,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:49:36,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:49:36,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:49:36,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 22:49:36,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:49:36,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:49:36,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:49:36,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:49:36,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:49:36,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:49:36,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:49:36,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:49:36,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:49:36,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:49:36,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:49:36,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-27 22:49:36,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:49:36,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:49:36,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:49:36,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:49:36,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:49:36,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:49:36,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:49:36,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:49:36,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:49:36,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:49:36,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:49:36,766 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 22:49:36,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [27720062] [2020-10-27 22:49:36,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:49:36,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 22:49:36,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353099851] [2020-10-27 22:49:36,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 22:49:36,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:49:36,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 22:49:36,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-27 22:49:36,774 INFO L87 Difference]: Start difference. First operand 337 states and 580 transitions. Second operand 13 states. [2020-10-27 22:49:39,719 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification that was a NOOP. DAG size: 271 [2020-10-27 22:49:40,390 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 273 [2020-10-27 22:49:41,229 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-27 22:49:41,857 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification that was a NOOP. DAG size: 276 [2020-10-27 22:49:42,710 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:49:43,277 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:49:43,915 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:49:44,524 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:49:45,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:49:45,335 INFO L93 Difference]: Finished difference Result 508 states and 849 transitions. [2020-10-27 22:49:45,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 22:49:45,335 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 105 [2020-10-27 22:49:45,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:49:45,344 INFO L225 Difference]: With dead ends: 508 [2020-10-27 22:49:45,344 INFO L226 Difference]: Without dead ends: 369 [2020-10-27 22:49:45,346 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-27 22:49:45,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2020-10-27 22:49:45,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 337. [2020-10-27 22:49:45,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-10-27 22:49:45,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 538 transitions. [2020-10-27 22:49:45,428 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 538 transitions. Word has length 105 [2020-10-27 22:49:45,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:49:45,430 INFO L481 AbstractCegarLoop]: Abstraction has 337 states and 538 transitions. [2020-10-27 22:49:45,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 22:49:45,430 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 538 transitions. [2020-10-27 22:49:45,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-27 22:49:45,439 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:49:45,440 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 22:49:45,440 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 22:49:45,440 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:49:45,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:49:45,441 INFO L82 PathProgramCache]: Analyzing trace with hash 317206157, now seen corresponding path program 1 times [2020-10-27 22:49:45,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:49:45,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1909093166] [2020-10-27 22:49:45,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:49:45,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:49:45,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:49:45,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:49:45,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:49:47,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:49:48,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:49:50,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:49:50,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-27 22:49:50,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:49:50,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-27 22:49:50,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:49:50,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 22:49:50,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-27 22:49:50,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 22:49:50,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:49:51,156 WARN L193 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-27 22:49:51,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:49:51,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:49:51,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:49:51,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:49:51,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:49:51,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:49:51,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-27 22:49:51,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:49:51,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:49:51,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:49:51,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:49:51,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:49:51,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:49:51,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:49:51,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:49:51,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:49:51,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-27 22:49:51,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:49:51,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 295 [2020-10-27 22:49:51,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:49:51,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:49:51,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:49:51,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-27 22:49:51,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:49:51,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 22:49:51,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:49:51,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:49:51,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:49:51,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:49:51,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:49:51,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:49:51,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:49:51,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:49:51,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:49:51,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:49:51,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:49:51,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-27 22:49:51,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:49:51,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:49:51,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:49:51,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:49:51,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:49:51,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 22:49:51,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:49:51,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:49:51,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:49:51,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:49:51,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:49:51,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 22:49:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:49:51,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:49:51,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:49:51,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:49:51,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:49:51,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 22:49:51,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:49:51,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:49:51,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:49:51,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:49:51,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:49:51,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-27 22:49:51,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:49:51,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:49:51,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:49:51,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:49:51,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:49:51,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 22:49:51,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:49:51,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:49:51,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:49:51,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:49:51,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:49:52,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-27 22:49:52,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:49:52,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:49:52,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:49:52,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:49:52,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:49:52,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 22:49:52,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:49:52,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:49:52,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:49:52,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:49:52,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:49:52,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 22:49:52,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:49:52,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:49:52,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:49:52,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:49:52,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:49:52,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:49:52,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:49:52,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:49:52,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 22:49:52,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:49:52,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:49:52,168 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 22:49:52,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1909093166] [2020-10-27 22:49:52,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:49:52,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-27 22:49:52,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497538230] [2020-10-27 22:49:52,170 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-27 22:49:52,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:49:52,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-27 22:49:52,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-10-27 22:49:52,171 INFO L87 Difference]: Start difference. First operand 337 states and 538 transitions. Second operand 16 states. [2020-10-27 22:49:52,761 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification that was a NOOP. DAG size: 273 [2020-10-27 22:49:54,991 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2020-10-27 22:49:55,554 WARN L193 SmtUtils]: Spent 537.00 ms on a formula simplification that was a NOOP. DAG size: 271 [2020-10-27 22:49:56,130 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-27 22:49:56,496 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 22:49:56,977 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 22:49:57,137 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:49:57,609 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 22:49:57,786 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 22:49:57,958 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 22:49:58,640 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 22:49:58,819 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 22:49:58,992 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 22:49:59,165 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:49:59,319 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 22:50:00,177 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 22:50:00,345 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 22:50:00,535 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 22:50:00,716 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 22:50:00,890 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:50:01,047 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 22:50:01,853 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 22:50:02,021 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 22:50:02,211 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:50:02,786 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 273 [2020-10-27 22:50:03,367 WARN L193 SmtUtils]: Spent 548.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-27 22:50:04,013 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 275 [2020-10-27 22:50:04,661 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 271 [2020-10-27 22:50:06,539 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 22:50:06,742 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 22:50:06,949 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 22:50:07,159 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 22:50:07,382 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 22:50:07,594 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 22:50:07,810 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 22:50:08,025 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 22:50:09,421 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 22:50:09,610 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 22:50:09,831 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 22:50:10,075 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 22:50:10,268 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 22:50:10,485 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 22:50:10,692 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 22:50:10,892 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 22:50:12,161 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 22:50:12,369 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 22:50:12,553 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 22:50:12,791 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 22:50:12,994 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 22:50:13,244 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 22:50:13,452 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 22:50:14,756 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 22:50:15,020 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 22:50:15,245 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 22:50:15,614 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2020-10-27 22:50:15,839 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 22:50:16,160 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 22:50:19,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:50:19,190 INFO L93 Difference]: Finished difference Result 1867 states and 2991 transitions. [2020-10-27 22:50:19,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2020-10-27 22:50:19,190 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 146 [2020-10-27 22:50:19,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:50:19,205 INFO L225 Difference]: With dead ends: 1867 [2020-10-27 22:50:19,205 INFO L226 Difference]: Without dead ends: 1734 [2020-10-27 22:50:19,211 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2179 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=1332, Invalid=5148, Unknown=0, NotChecked=0, Total=6480 [2020-10-27 22:50:19,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2020-10-27 22:50:19,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1368. [2020-10-27 22:50:19,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1368 states. [2020-10-27 22:50:19,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 2198 transitions. [2020-10-27 22:50:19,383 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 2198 transitions. Word has length 146 [2020-10-27 22:50:19,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:50:19,384 INFO L481 AbstractCegarLoop]: Abstraction has 1368 states and 2198 transitions. [2020-10-27 22:50:19,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-27 22:50:19,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 2198 transitions. [2020-10-27 22:50:19,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-27 22:50:19,388 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:50:19,388 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, 1, 1, 1, 1, 1] [2020-10-27 22:50:19,389 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 22:50:19,389 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:50:19,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:50:19,390 INFO L82 PathProgramCache]: Analyzing trace with hash -979322660, now seen corresponding path program 1 times [2020-10-27 22:50:19,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:50:19,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [514187060] [2020-10-27 22:50:19,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:50:19,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:50:19,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:50:19,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:50:19,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:50:21,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:50:21,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:50:24,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:50:24,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-27 22:50:24,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:50:24,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-27 22:50:24,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:50:24,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:50:24,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-27 22:50:24,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-27 22:50:24,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:50:25,089 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-27 22:50:25,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:50:25,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:50:25,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:50:25,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:50:25,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:50:25,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:50:25,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 22:50:25,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:50:25,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:50:25,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:50:25,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:50:25,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:50:25,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:50:25,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:50:25,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:50:25,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:50:25,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-27 22:50:25,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:50:25,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-27 22:50:25,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:50:25,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:50:25,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:50:25,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-27 22:50:25,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:50:25,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 22:50:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:50:25,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:50:25,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:50:25,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:50:25,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:50:25,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:50:25,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:50:25,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:50:25,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:50:25,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:50:25,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:50:25,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-27 22:50:25,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:50:25,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:50:25,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:50:25,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:50:25,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:50:25,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 22:50:25,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:50:25,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:50:25,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:50:25,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:50:25,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:50:25,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 22:50:25,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:50:25,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:50:25,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:50:25,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:50:25,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:50:25,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:50:25,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:50:25,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:50:25,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:50:25,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:50:25,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:50:25,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-27 22:50:25,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:50:25,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:50:25,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:50:25,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:50:25,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:50:25,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:50:25,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:50:25,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:50:25,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:50:25,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:50:25,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:50:25,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-27 22:50:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:50:25,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:50:25,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:50:25,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:50:25,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:50:25,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:50:25,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:50:25,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:50:25,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:50:25,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:50:25,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:50:25,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 22:50:25,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:50:25,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:50:25,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:50:25,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:50:25,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:50:25,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:50:25,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:50:25,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:50:25,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 22:50:25,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:50:25,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:50:25,724 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 22:50:25,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [514187060] [2020-10-27 22:50:25,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:50:25,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:50:25,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678837289] [2020-10-27 22:50:25,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:50:25,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:50:25,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:50:25,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:50:25,732 INFO L87 Difference]: Start difference. First operand 1368 states and 2198 transitions. Second operand 11 states. [2020-10-27 22:50:26,337 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-27 22:50:28,921 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2020-10-27 22:50:29,248 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 22:50:29,674 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 22:50:29,837 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:50:29,972 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 22:50:30,457 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 22:50:30,623 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:50:30,784 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 22:50:31,512 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 22:50:31,687 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:50:31,871 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 22:50:32,619 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:50:32,793 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 22:50:33,862 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification that was a NOOP. DAG size: 271 [2020-10-27 22:50:34,434 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification that was a NOOP. DAG size: 273 [2020-10-27 22:50:35,292 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 22:50:35,527 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 22:50:35,707 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 22:50:35,934 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 22:50:36,805 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 22:50:37,024 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 22:50:37,204 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 22:50:37,968 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 22:50:38,168 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 22:50:38,816 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 22:50:39,005 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 22:50:39,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:50:39,609 INFO L93 Difference]: Finished difference Result 5375 states and 8554 transitions. [2020-10-27 22:50:39,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-27 22:50:39,610 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 147 [2020-10-27 22:50:39,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:50:39,634 INFO L225 Difference]: With dead ends: 5375 [2020-10-27 22:50:39,634 INFO L226 Difference]: Without dead ends: 4211 [2020-10-27 22:50:39,639 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2020-10-27 22:50:39,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4211 states. [2020-10-27 22:50:39,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4211 to 3390. [2020-10-27 22:50:39,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3390 states. [2020-10-27 22:50:39,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3390 states to 3390 states and 5436 transitions. [2020-10-27 22:50:39,914 INFO L78 Accepts]: Start accepts. Automaton has 3390 states and 5436 transitions. Word has length 147 [2020-10-27 22:50:39,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:50:39,915 INFO L481 AbstractCegarLoop]: Abstraction has 3390 states and 5436 transitions. [2020-10-27 22:50:39,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:50:39,916 INFO L276 IsEmpty]: Start isEmpty. Operand 3390 states and 5436 transitions. [2020-10-27 22:50:39,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-27 22:50:39,919 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:50:39,919 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 22:50:39,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 22:50:39,920 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:50:39,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:50:39,920 INFO L82 PathProgramCache]: Analyzing trace with hash 175723926, now seen corresponding path program 1 times [2020-10-27 22:50:39,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:50:39,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1631485843] [2020-10-27 22:50:39,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:50:40,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:50:40,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:50:40,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:50:40,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:50:41,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:50:41,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:50:45,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:50:45,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-27 22:50:45,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:50:45,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-27 22:50:45,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:50:45,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:50:45,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-27 22:50:45,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-27 22:50:45,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:50:45,705 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-27 22:50:45,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:50:45,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:50:45,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:50:45,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:50:45,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:50:45,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:50:45,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 22:50:45,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:50:45,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:50:45,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:50:45,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:50:45,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:50:45,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:50:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:50:45,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:50:45,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:50:45,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-27 22:50:45,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:50:45,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-27 22:50:45,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:50:45,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:50:45,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:50:45,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-27 22:50:45,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:50:45,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 22:50:45,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:50:45,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:50:45,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:50:45,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:50:45,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:50:45,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:50:45,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:50:45,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:50:45,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:50:45,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:50:45,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:50:45,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-27 22:50:45,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:50:46,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:50:46,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:50:46,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:50:46,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:50:46,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:50:46,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:50:46,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:50:46,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:50:46,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:50:46,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:50:46,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 22:50:46,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:50:46,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:50:46,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:50:46,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:50:46,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:50:46,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 22:50:46,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:50:46,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:50:46,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:50:46,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:50:46,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:50:46,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-27 22:50:46,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:50:46,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:50:46,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:50:46,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:50:46,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:50:46,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:50:46,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:50:46,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:50:46,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:50:46,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:50:46,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:50:46,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-27 22:50:46,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:50:46,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:50:46,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:50:46,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:50:46,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:50:46,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:50:46,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:50:46,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:50:46,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:50:46,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:50:46,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:50:46,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 22:50:46,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:50:46,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:50:46,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:50:46,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 22:50:46,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:50:46,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:50:46,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:50:46,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:50:46,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:50:46,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:50:46,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:50:46,343 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 22:50:46,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1631485843] [2020-10-27 22:50:46,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:50:46,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:50:46,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178377973] [2020-10-27 22:50:46,344 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:50:46,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:50:46,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:50:46,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:50:46,345 INFO L87 Difference]: Start difference. First operand 3390 states and 5436 transitions. Second operand 11 states. [2020-10-27 22:50:46,999 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 271 [2020-10-27 22:50:49,600 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2020-10-27 22:50:49,951 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 22:50:50,391 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 22:50:50,841 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:50:50,993 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 22:50:51,153 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 22:50:51,626 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:50:51,790 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 22:50:51,993 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 22:50:52,801 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:50:52,974 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 22:50:54,117 WARN L193 SmtUtils]: Spent 542.00 ms on a formula simplification that was a NOOP. DAG size: 271 [2020-10-27 22:50:54,685 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 273 [2020-10-27 22:50:55,676 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:50:55,946 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 22:50:56,119 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 22:50:56,425 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 22:50:56,938 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 22:50:57,545 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 22:50:57,840 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 22:50:58,169 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 22:50:58,993 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 22:50:59,186 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 22:50:59,362 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 22:51:00,239 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 22:51:00,480 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 22:51:01,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:51:01,677 INFO L93 Difference]: Finished difference Result 15652 states and 24829 transitions. [2020-10-27 22:51:01,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-27 22:51:01,678 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 148 [2020-10-27 22:51:01,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:51:01,750 INFO L225 Difference]: With dead ends: 15652 [2020-10-27 22:51:01,750 INFO L226 Difference]: Without dead ends: 12466 [2020-10-27 22:51:01,763 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=335, Invalid=1147, Unknown=0, NotChecked=0, Total=1482 [2020-10-27 22:51:01,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12466 states. [2020-10-27 22:51:02,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12466 to 9961. [2020-10-27 22:51:02,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9961 states. [2020-10-27 22:51:02,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9961 states to 9961 states and 15921 transitions. [2020-10-27 22:51:02,587 INFO L78 Accepts]: Start accepts. Automaton has 9961 states and 15921 transitions. Word has length 148 [2020-10-27 22:51:02,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:51:02,588 INFO L481 AbstractCegarLoop]: Abstraction has 9961 states and 15921 transitions. [2020-10-27 22:51:02,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:51:02,588 INFO L276 IsEmpty]: Start isEmpty. Operand 9961 states and 15921 transitions. [2020-10-27 22:51:02,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-27 22:51:02,593 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:51:02,593 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:51:02,593 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 22:51:02,593 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:51:02,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:51:02,594 INFO L82 PathProgramCache]: Analyzing trace with hash 20196677, now seen corresponding path program 1 times [2020-10-27 22:51:02,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:51:02,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [87535829] [2020-10-27 22:51:02,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:51:02,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:02,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:02,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:02,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:03,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:06,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:07,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:07,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-27 22:51:07,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:51:07,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-27 22:51:07,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:07,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:51:07,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-27 22:51:07,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-27 22:51:07,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:08,391 WARN L193 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-27 22:51:08,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:51:08,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:08,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:08,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:08,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:51:08,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:08,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 22:51:08,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:08,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:51:08,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:51:08,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:51:08,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:08,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:51:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:08,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:08,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:08,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-27 22:51:08,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:08,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-27 22:51:08,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:08,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:51:08,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:51:08,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 22:51:08,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:08,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 22:51:08,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:08,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:08,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:08,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:51:08,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:08,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:51:08,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:08,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:51:08,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:51:08,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:51:08,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:08,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-27 22:51:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:08,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:08,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:08,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:51:08,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:08,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:51:08,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:08,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:51:08,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:51:08,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:51:08,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:08,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 22:51:08,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:08,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:08,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:08,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:51:08,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:08,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:51:08,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:08,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:51:08,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:51:08,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:51:08,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:08,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-27 22:51:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:08,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:08,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:08,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:51:08,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:08,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 22:51:08,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:08,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:51:08,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:51:08,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:51:08,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:08,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-27 22:51:08,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:08,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:08,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:08,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:51:08,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:08,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:51:08,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:08,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:51:08,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:51:08,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:51:08,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:08,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 22:51:08,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:08,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:08,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:08,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:51:08,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:08,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:51:08,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:08,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:51:08,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 22:51:08,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:51:08,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:08,965 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 22:51:08,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [87535829] [2020-10-27 22:51:08,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:51:08,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:51:08,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195122438] [2020-10-27 22:51:08,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:51:08,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:51:08,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:51:08,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:51:08,968 INFO L87 Difference]: Start difference. First operand 9961 states and 15921 transitions. Second operand 11 states. [2020-10-27 22:51:09,545 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification that was a NOOP. DAG size: 271 [2020-10-27 22:51:11,996 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2020-10-27 22:51:12,300 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 22:51:12,726 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 22:51:13,142 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 22:51:13,520 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:51:13,670 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 22:51:13,837 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 22:51:14,293 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:51:14,472 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 22:51:15,687 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 271 [2020-10-27 22:51:16,255 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 273 [2020-10-27 22:51:17,069 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:51:17,430 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 22:51:17,606 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 22:51:17,841 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 22:51:18,218 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:51:18,965 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 22:51:19,171 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 22:51:19,425 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 22:51:19,762 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 22:51:20,442 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 22:51:20,651 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 22:51:20,908 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 22:51:21,665 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 22:51:21,862 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 22:51:22,038 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 22:51:23,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:51:23,700 INFO L93 Difference]: Finished difference Result 54025 states and 85407 transitions. [2020-10-27 22:51:23,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-27 22:51:23,701 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 149 [2020-10-27 22:51:23,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:51:23,881 INFO L225 Difference]: With dead ends: 54025 [2020-10-27 22:51:23,881 INFO L226 Difference]: Without dead ends: 44268 [2020-10-27 22:51:23,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=335, Invalid=1147, Unknown=0, NotChecked=0, Total=1482 [2020-10-27 22:51:23,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44268 states. [2020-10-27 22:51:26,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44268 to 35283. [2020-10-27 22:51:26,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35283 states. [2020-10-27 22:51:26,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35283 states to 35283 states and 56218 transitions. [2020-10-27 22:51:26,316 INFO L78 Accepts]: Start accepts. Automaton has 35283 states and 56218 transitions. Word has length 149 [2020-10-27 22:51:26,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:51:26,316 INFO L481 AbstractCegarLoop]: Abstraction has 35283 states and 56218 transitions. [2020-10-27 22:51:26,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:51:26,316 INFO L276 IsEmpty]: Start isEmpty. Operand 35283 states and 56218 transitions. [2020-10-27 22:51:26,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-27 22:51:26,322 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:51:26,322 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:51:26,322 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 22:51:26,322 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:51:26,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:51:26,323 INFO L82 PathProgramCache]: Analyzing trace with hash -2108413793, now seen corresponding path program 1 times [2020-10-27 22:51:26,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:51:26,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [608681226] [2020-10-27 22:51:26,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:51:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:26,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:26,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:26,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:26,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:29,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:31,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:31,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-27 22:51:31,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:51:31,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-27 22:51:31,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:31,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:51:31,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-27 22:51:31,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-27 22:51:31,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:32,006 WARN L193 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-27 22:51:32,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:51:32,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:32,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:32,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:32,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:51:32,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:32,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:51:32,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:32,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:51:32,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:51:32,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:51:32,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:32,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:51:32,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:32,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:32,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:32,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-27 22:51:32,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:32,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-27 22:51:32,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:32,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:51:32,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:51:32,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-27 22:51:32,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:32,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 22:51:32,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:32,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:32,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:32,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:51:32,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:32,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:51:32,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:32,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:51:32,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:51:32,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:51:32,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:32,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-27 22:51:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:32,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:32,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:32,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:51:32,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:32,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:51:32,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:32,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:51:32,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:51:32,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:51:32,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:32,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 22:51:32,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:32,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:32,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:32,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:51:32,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:32,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:51:32,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:32,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:51:32,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:51:32,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:51:32,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:32,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-27 22:51:32,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:32,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:32,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:32,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:51:32,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:32,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:51:32,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:32,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:51:32,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:51:32,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:51:32,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:32,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-27 22:51:32,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:32,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:32,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:32,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:51:32,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:32,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 22:51:32,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:32,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:51:32,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:51:32,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:51:32,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:32,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 22:51:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:32,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:32,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:32,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:51:32,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:32,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:51:32,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:32,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:51:32,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:51:32,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:51:32,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:32,461 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 22:51:32,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [608681226] [2020-10-27 22:51:32,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:51:32,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:51:32,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177551100] [2020-10-27 22:51:32,462 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:51:32,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:51:32,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:51:32,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:51:32,463 INFO L87 Difference]: Start difference. First operand 35283 states and 56218 transitions. Second operand 11 states. [2020-10-27 22:51:33,116 WARN L193 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-27 22:51:35,764 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2020-10-27 22:51:36,098 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 22:51:36,511 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 22:51:36,963 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 22:51:37,423 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 22:51:37,831 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:51:37,998 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 22:51:38,942 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 271 [2020-10-27 22:51:39,552 WARN L193 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 273 [2020-10-27 22:51:40,337 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:51:40,859 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 22:51:41,047 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 22:51:41,380 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 22:51:41,542 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:51:42,418 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 22:51:42,615 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 22:51:42,979 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 22:51:43,191 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:51:44,042 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 22:51:44,233 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 22:51:44,554 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 22:51:44,736 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 22:51:45,608 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 22:51:45,815 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 22:51:46,134 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 22:51:46,839 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 22:51:50,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:51:50,935 INFO L93 Difference]: Finished difference Result 220897 states and 348875 transitions. [2020-10-27 22:51:50,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-27 22:51:50,936 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 150 [2020-10-27 22:51:50,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:51:52,148 INFO L225 Difference]: With dead ends: 220897 [2020-10-27 22:51:52,149 INFO L226 Difference]: Without dead ends: 185818 [2020-10-27 22:51:52,267 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2020-10-27 22:51:52,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185818 states. [2020-10-27 22:52:00,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185818 to 147925. [2020-10-27 22:52:00,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147925 states. [2020-10-27 22:52:00,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147925 states to 147925 states and 235753 transitions. [2020-10-27 22:52:00,902 INFO L78 Accepts]: Start accepts. Automaton has 147925 states and 235753 transitions. Word has length 150 [2020-10-27 22:52:00,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:52:00,903 INFO L481 AbstractCegarLoop]: Abstraction has 147925 states and 235753 transitions. [2020-10-27 22:52:00,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:52:00,903 INFO L276 IsEmpty]: Start isEmpty. Operand 147925 states and 235753 transitions. [2020-10-27 22:52:00,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-27 22:52:00,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:52:00,913 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:52:00,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 22:52:00,913 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:52:00,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:52:00,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1924786286, now seen corresponding path program 1 times [2020-10-27 22:52:00,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:52:00,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [813061593] [2020-10-27 22:52:00,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:52:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:01,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:01,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:01,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:01,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:02,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:02,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:02,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:02,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:05,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:05,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-27 22:52:05,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-27 22:52:05,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-27 22:52:05,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:05,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:52:05,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 131 [2020-10-27 22:52:05,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:52:05,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:06,634 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-27 22:52:06,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:52:06,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:06,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:06,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:06,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:52:06,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:06,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:52:06,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:06,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:06,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:52:06,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:06,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:06,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:52:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:06,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:06,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:06,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-27 22:52:06,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:06,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 22:52:06,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:06,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:06,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:52:06,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:06,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:06,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 22:52:06,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:06,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:06,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:06,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:52:06,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:06,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:52:06,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:06,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:06,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:52:06,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:06,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:06,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-27 22:52:06,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:06,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:06,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:06,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:52:06,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:06,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:52:06,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:06,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:06,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:52:06,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:06,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:06,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 22:52:06,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:06,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:06,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:06,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 22:52:06,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:06,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 22:52:06,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:06,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:52:06,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 22:52:06,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:52:06,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:06,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-27 22:52:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:06,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:06,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:06,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:52:06,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:06,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:52:06,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:06,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:06,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:52:06,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:06,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:06,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-27 22:52:06,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:06,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:06,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:06,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:52:06,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:06,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:52:06,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:06,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:06,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:52:06,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:06,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:06,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-27 22:52:07,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:07,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:07,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:07,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:52:07,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:07,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:52:07,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:07,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:07,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:52:07,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:07,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:07,035 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 22:52:07,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [813061593] [2020-10-27 22:52:07,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:52:07,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 22:52:07,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699262365] [2020-10-27 22:52:07,037 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 22:52:07,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:52:07,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 22:52:07,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-27 22:52:07,037 INFO L87 Difference]: Start difference. First operand 147925 states and 235753 transitions. Second operand 9 states. [2020-10-27 22:52:09,400 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:52:09,919 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 22:52:10,160 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 22:52:10,340 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:52:10,904 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:52:11,701 WARN L193 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-27 22:52:12,054 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 22:52:12,372 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:52:13,125 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 22:52:14,698 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 22:52:26,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:52:26,167 INFO L93 Difference]: Finished difference Result 495157 states and 792425 transitions. [2020-10-27 22:52:26,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 22:52:26,168 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 152 [2020-10-27 22:52:26,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:52:27,714 INFO L225 Difference]: With dead ends: 495157 [2020-10-27 22:52:27,714 INFO L226 Difference]: Without dead ends: 347436 [2020-10-27 22:52:27,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2020-10-27 22:52:28,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347436 states. [2020-10-27 22:52:41,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347436 to 280800. [2020-10-27 22:52:41,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280800 states. [2020-10-27 22:52:42,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280800 states to 280800 states and 448277 transitions. [2020-10-27 22:52:42,752 INFO L78 Accepts]: Start accepts. Automaton has 280800 states and 448277 transitions. Word has length 152 [2020-10-27 22:52:42,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:52:42,752 INFO L481 AbstractCegarLoop]: Abstraction has 280800 states and 448277 transitions. [2020-10-27 22:52:42,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 22:52:42,752 INFO L276 IsEmpty]: Start isEmpty. Operand 280800 states and 448277 transitions. [2020-10-27 22:52:42,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-27 22:52:42,759 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:52:42,759 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:52:42,759 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 22:52:42,759 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:52:42,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:52:42,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1080780784, now seen corresponding path program 1 times [2020-10-27 22:52:42,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:52:42,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1134756728] [2020-10-27 22:52:42,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:52:42,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:42,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:42,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:43,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:43,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:44,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:44,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:44,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:47,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:47,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-27 22:52:47,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 22:52:47,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 22:52:47,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:47,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:52:47,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-27 22:52:47,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-27 22:52:47,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:48,436 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-27 22:52:48,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:52:48,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:48,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:48,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:48,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:52:48,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:48,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:52:48,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:48,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:48,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:52:48,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:48,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:48,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:52:48,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:48,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:48,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:48,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-27 22:52:48,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:48,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-27 22:52:48,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:48,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:52:48,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:52:48,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-27 22:52:48,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:48,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 22:52:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:48,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:48,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:48,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:52:48,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:48,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:52:48,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:48,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:52:48,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:52:48,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:52:48,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:48,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-27 22:52:48,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:48,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:48,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:48,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:52:48,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:48,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:52:48,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:48,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:52:48,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:52:48,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:52:48,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:48,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 22:52:48,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:48,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:48,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:48,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 22:52:48,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:48,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 22:52:48,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:48,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:52:48,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:52:48,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 22:52:48,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:48,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-27 22:52:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:48,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:48,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:48,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:52:48,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:48,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:52:48,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:48,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:48,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:52:48,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:48,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:48,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-27 22:52:48,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:48,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:48,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:48,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:52:48,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:48,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:52:48,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:48,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:48,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:52:48,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:48,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:48,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-27 22:52:48,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:48,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:48,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:48,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:52:48,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:48,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:52:48,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:48,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:48,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:52:48,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:48,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:48,866 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 22:52:48,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1134756728] [2020-10-27 22:52:48,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:52:48,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 22:52:48,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32201719] [2020-10-27 22:52:48,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 22:52:48,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:52:48,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 22:52:48,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-27 22:52:48,869 INFO L87 Difference]: Start difference. First operand 280800 states and 448277 transitions. Second operand 9 states. [2020-10-27 22:52:49,520 WARN L193 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-27 22:52:51,879 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 22:52:52,326 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 22:52:52,551 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 22:52:52,816 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 109