/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_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 23:05:37,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 23:05:37,707 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 23:05:37,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 23:05:37,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 23:05:37,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 23:05:37,768 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 23:05:37,773 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 23:05:37,777 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 23:05:37,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 23:05:37,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 23:05:37,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 23:05:37,788 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 23:05:37,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 23:05:37,794 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 23:05:37,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 23:05:37,798 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 23:05:37,802 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 23:05:37,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 23:05:37,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 23:05:37,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 23:05:37,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 23:05:37,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 23:05:37,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 23:05:37,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 23:05:37,850 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 23:05:37,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 23:05:37,854 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 23:05:37,855 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 23:05:37,856 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 23:05:37,857 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 23:05:37,858 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 23:05:37,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 23:05:37,870 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 23:05:37,871 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 23:05:37,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 23:05:37,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 23:05:37,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 23:05:37,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 23:05:37,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 23:05:37,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 23:05:37,885 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 23:05:37,940 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 23:05:37,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 23:05:37,946 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 23:05:37,947 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 23:05:37,947 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 23:05:37,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 23:05:37,947 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 23:05:37,947 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 23:05:37,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 23:05:37,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 23:05:37,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 23:05:37,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 23:05:37,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 23:05:37,950 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 23:05:37,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 23:05:37,950 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 23:05:37,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 23:05:37,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 23:05:37,951 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 23:05:37,951 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 23:05:37,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 23:05:37,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 23:05:37,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 23:05:37,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 23:05:37,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 23:05:37,952 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 23:05:37,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 23:05:37,953 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 23:05:37,953 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 23:05:37,953 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 23:05:38,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 23:05:38,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 23:05:38,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 23:05:38,408 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 23:05:38,408 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 23:05:38,409 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c [2020-10-27 23:05:38,489 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed53f149b/6ab7c016c8284270939df2f3aaf614c4/FLAGb27fa0905 [2020-10-27 23:05:39,245 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 23:05:39,246 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c [2020-10-27 23:05:39,258 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed53f149b/6ab7c016c8284270939df2f3aaf614c4/FLAGb27fa0905 [2020-10-27 23:05:39,540 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed53f149b/6ab7c016c8284270939df2f3aaf614c4 [2020-10-27 23:05:39,543 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 23:05:39,550 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 23:05:39,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 23:05:39,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 23:05:39,558 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 23:05:39,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:05:39" (1/1) ... [2020-10-27 23:05:39,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dd97327 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:05:39, skipping insertion in model container [2020-10-27 23:05:39,564 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:05:39" (1/1) ... [2020-10-27 23:05:39,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 23:05:39,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 23:05:39,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:05:39,975 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 23:05:40,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:05:40,116 INFO L208 MainTranslator]: Completed translation [2020-10-27 23:05:40,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:05:40 WrapperNode [2020-10-27 23:05:40,117 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 23:05:40,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 23:05:40,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 23:05:40,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 23:05:40,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:05:40" (1/1) ... [2020-10-27 23:05:40,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:05:40" (1/1) ... [2020-10-27 23:05:40,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:05:40" (1/1) ... [2020-10-27 23:05:40,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:05:40" (1/1) ... [2020-10-27 23:05:40,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:05:40" (1/1) ... [2020-10-27 23:05:40,182 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:05:40" (1/1) ... [2020-10-27 23:05:40,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:05:40" (1/1) ... [2020-10-27 23:05:40,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 23:05:40,204 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 23:05:40,204 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 23:05:40,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 23:05:40,205 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:05:40" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 23:05:40,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 23:05:40,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 23:05:40,291 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 23:05:40,291 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 23:05:40,291 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-27 23:05:40,292 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-27 23:05:40,292 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-27 23:05:40,292 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-27 23:05:40,293 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-27 23:05:40,293 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 23:05:40,294 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 23:05:40,294 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 23:05:40,294 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 23:05:40,294 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 23:05:40,294 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 23:05:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 23:05:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 23:05:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 23:05:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 23:05:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-27 23:05:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 23:05:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 23:05:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 23:05:40,297 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 23:05:40,297 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-27 23:05:40,297 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-27 23:05:40,298 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-27 23:05:40,298 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-27 23:05:40,298 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-27 23:05:40,298 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 23:05:40,299 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 23:05:40,299 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 23:05:40,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 23:05:40,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 23:05:40,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 23:05:40,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 23:05:40,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 23:05:40,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 23:05:41,175 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 23:05:41,176 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 23:05:41,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:05:41 BoogieIcfgContainer [2020-10-27 23:05:41,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 23:05:41,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 23:05:41,181 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 23:05:41,184 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 23:05:41,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 11:05:39" (1/3) ... [2020-10-27 23:05:41,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@92b26f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:05:41, skipping insertion in model container [2020-10-27 23:05:41,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:05:40" (2/3) ... [2020-10-27 23:05:41,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@92b26f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:05:41, skipping insertion in model container [2020-10-27 23:05:41,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:05:41" (3/3) ... [2020-10-27 23:05:41,188 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c [2020-10-27 23:05:41,214 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 23:05:41,219 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 23:05:41,232 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 23:05:41,264 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 23:05:41,264 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 23:05:41,265 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 23:05:41,265 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 23:05:41,265 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 23:05:41,265 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 23:05:41,265 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 23:05:41,266 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 23:05:41,293 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states. [2020-10-27 23:05:41,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-27 23:05:41,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:05:41,306 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] [2020-10-27 23:05:41,307 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:05:41,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:05:41,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1493845296, now seen corresponding path program 1 times [2020-10-27 23:05:41,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:05:41,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [77268818] [2020-10-27 23:05:41,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:05:41,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:41,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:42,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:42,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-27 23:05:42,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:42,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 507 [2020-10-27 23:05:42,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:42,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:42,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 23:05:42,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:42,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 23:05:42,451 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:05:42,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:05:42,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:42,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:42,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:42,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:05:42,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:42,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 23:05:42,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:42,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:42,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:42,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:42,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:42,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:05:42,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:42,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:42,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:42,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:05:42,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:42,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:05:42,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:42,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:42,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:42,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:42,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:42,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 23:05:42,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:42,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:42,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:42,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:05:42,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:42,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:05:42,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:42,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:42,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:05:42,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:42,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:42,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 23:05:42,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:42,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:42,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:42,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:42,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:42,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:05:42,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:42,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:42,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:05:42,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:42,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:42,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 23:05:42,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:42,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:42,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:42,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:42,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:42,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:05:42,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:42,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:42,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:05:42,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:42,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 23:05:42,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 23:05:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:42,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:42,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:42,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:42,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:42,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:05:42,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:42,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:42,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:05:42,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:42,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:42,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 23:05:42,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:42,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:42,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:42,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:42,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:42,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:05:42,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:42,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:42,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:05:42,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:42,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:42,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 23:05:42,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:42,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:42,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:42,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:42,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:42,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:05:42,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:42,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:42,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:05:42,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:42,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:42,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 23:05:42,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:42,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:42,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:42,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:05:42,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:42,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:05:42,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:42,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:42,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:05:42,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:42,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:42,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:05:42,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [77268818] [2020-10-27 23:05:42,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:05:42,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 23:05:42,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875224426] [2020-10-27 23:05:42,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 23:05:42,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:05:42,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 23:05:42,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-27 23:05:42,833 INFO L87 Difference]: Start difference. First operand 164 states. Second operand 8 states. [2020-10-27 23:05:44,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:05:44,433 INFO L93 Difference]: Finished difference Result 279 states and 417 transitions. [2020-10-27 23:05:44,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 23:05:44,435 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 69 [2020-10-27 23:05:44,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:05:44,458 INFO L225 Difference]: With dead ends: 279 [2020-10-27 23:05:44,458 INFO L226 Difference]: Without dead ends: 162 [2020-10-27 23:05:44,463 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-27 23:05:44,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-27 23:05:44,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 156. [2020-10-27 23:05:44,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-10-27 23:05:44,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 237 transitions. [2020-10-27 23:05:44,531 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 237 transitions. Word has length 69 [2020-10-27 23:05:44,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:05:44,531 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 237 transitions. [2020-10-27 23:05:44,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 23:05:44,532 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 237 transitions. [2020-10-27 23:05:44,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-27 23:05:44,535 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:05:44,536 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] [2020-10-27 23:05:44,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 23:05:44,536 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:05:44,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:05:44,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1925102994, now seen corresponding path program 1 times [2020-10-27 23:05:44,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:05:44,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [624129263] [2020-10-27 23:05:44,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:05:44,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:44,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:45,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:45,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-27 23:05:45,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:45,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 821 [2020-10-27 23:05:45,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:45,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:05:45,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 23:05:45,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 23:05:45,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:45,676 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:05:45,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:05:45,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:45,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:45,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:45,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:05:45,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:45,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:05:45,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:45,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:45,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:45,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:45,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:45,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:05:45,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:45,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:45,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:45,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:05:45,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:45,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:05:45,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:45,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:45,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:45,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:05:45,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:45,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 23:05:45,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:45,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:45,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:45,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:05:45,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:45,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:05:45,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:45,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:45,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 23:05:45,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:05:45,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:45,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 23:05:45,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:45,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:45,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:45,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:45,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:45,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:05:45,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:45,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:45,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:05:45,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:45,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:05:45,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 23:05:45,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:45,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:45,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:45,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:45,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:45,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:05:45,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:45,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:45,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:05:45,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:45,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:45,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 23:05:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:45,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:45,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:45,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:45,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:45,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:05:45,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:45,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:45,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:05:45,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:45,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:46,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 23:05:46,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:46,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:46,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:46,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:46,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:46,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:05:46,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:46,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:46,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:05:46,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:46,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:46,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 23:05:46,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:46,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:46,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:46,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:46,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:46,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:05:46,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:46,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:46,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:05:46,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:46,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:46,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 23:05:46,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:46,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:46,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:46,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:05:46,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:46,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:05:46,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:46,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:46,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:05:46,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:46,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:46,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:05:46,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [624129263] [2020-10-27 23:05:46,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:05:46,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 23:05:46,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521913701] [2020-10-27 23:05:46,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 23:05:46,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:05:46,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 23:05:46,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-27 23:05:46,097 INFO L87 Difference]: Start difference. First operand 156 states and 237 transitions. Second operand 14 states. [2020-10-27 23:05:46,450 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 23:05:46,767 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-27 23:05:47,125 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 23:05:47,433 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 23:05:49,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:05:49,534 INFO L93 Difference]: Finished difference Result 274 states and 405 transitions. [2020-10-27 23:05:49,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 23:05:49,535 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 69 [2020-10-27 23:05:49,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:05:49,538 INFO L225 Difference]: With dead ends: 274 [2020-10-27 23:05:49,538 INFO L226 Difference]: Without dead ends: 162 [2020-10-27 23:05:49,540 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-27 23:05:49,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-27 23:05:49,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 156. [2020-10-27 23:05:49,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-10-27 23:05:49,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 205 transitions. [2020-10-27 23:05:49,583 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 205 transitions. Word has length 69 [2020-10-27 23:05:49,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:05:49,584 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 205 transitions. [2020-10-27 23:05:49,584 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 23:05:49,584 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 205 transitions. [2020-10-27 23:05:49,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-27 23:05:49,602 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:05:49,603 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:05:49,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 23:05:49,603 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:05:49,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:05:49,604 INFO L82 PathProgramCache]: Analyzing trace with hash -771558967, now seen corresponding path program 1 times [2020-10-27 23:05:49,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:05:49,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [918958172] [2020-10-27 23:05:49,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:05:49,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:49,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:49,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:49,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:50,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:52,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:54,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:54,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 23:05:54,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:05:54,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-27 23:05:54,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:54,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:54,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-27 23:05:54,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-27 23:05:54,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:05:55,019 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:05:55,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:05:55,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:55,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:55,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:55,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:05:55,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:55,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:05:55,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:55,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:55,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:55,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:55,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:55,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:05:55,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:55,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:55,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:55,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 23:05:55,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:55,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 23:05:55,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:55,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:55,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:55,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 23:05:55,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:55,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 23:05:55,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:55,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:55,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:55,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:05:55,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:55,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:05:55,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:55,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:55,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:55,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:05:55,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:55,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 23:05:55,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:55,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:55,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:55,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:55,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:55,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:05:55,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:55,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:55,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:55,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:05:55,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:55,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 23:05:55,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:55,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:55,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:55,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:55,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:55,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:05:55,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:55,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:55,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:55,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:05:55,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:55,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 23:05:55,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:55,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:55,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:55,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:55,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:55,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:05:55,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:55,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:55,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:55,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:05:55,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:55,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 23:05:55,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:55,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:55,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:55,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:55,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:55,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:05:55,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:55,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:55,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:55,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:05:55,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:55,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 23:05:55,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:55,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:55,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:55,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:55,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:55,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:05:55,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:55,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:55,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:05:55,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:05:55,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:55,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 23:05:55,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:55,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:55,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:55,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:05:55,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:55,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:05:55,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:55,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:55,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:05:55,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:55,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:55,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:05:55,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [918958172] [2020-10-27 23:05:55,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:05:55,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 23:05:55,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886686713] [2020-10-27 23:05:55,378 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 23:05:55,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:05:55,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 23:05:55,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:05:55,379 INFO L87 Difference]: Start difference. First operand 156 states and 205 transitions. Second operand 11 states. [2020-10-27 23:05:55,661 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 23:05:57,011 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-27 23:05:58,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:05:58,385 INFO L93 Difference]: Finished difference Result 367 states and 508 transitions. [2020-10-27 23:05:58,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 23:05:58,386 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 100 [2020-10-27 23:05:58,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:05:58,392 INFO L225 Difference]: With dead ends: 367 [2020-10-27 23:05:58,392 INFO L226 Difference]: Without dead ends: 261 [2020-10-27 23:05:58,394 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-27 23:05:58,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2020-10-27 23:05:58,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 247. [2020-10-27 23:05:58,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-10-27 23:05:58,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 338 transitions. [2020-10-27 23:05:58,446 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 338 transitions. Word has length 100 [2020-10-27 23:05:58,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:05:58,447 INFO L481 AbstractCegarLoop]: Abstraction has 247 states and 338 transitions. [2020-10-27 23:05:58,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 23:05:58,447 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 338 transitions. [2020-10-27 23:05:58,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-27 23:05:58,449 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:05:58,449 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] [2020-10-27 23:05:58,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 23:05:58,450 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:05:58,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:05:58,450 INFO L82 PathProgramCache]: Analyzing trace with hash 505142832, now seen corresponding path program 1 times [2020-10-27 23:05:58,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:05:58,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1706486429] [2020-10-27 23:05:58,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:05:58,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:58,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:58,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:58,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:59,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:03,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:03,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-27 23:06:03,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 23:06:03,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-27 23:06:03,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:03,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:06:03,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-27 23:06:03,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 23:06:03,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:03,780 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:06:03,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:06:03,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:03,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:03,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:03,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:06:03,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:03,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:06:03,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:03,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:03,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:03,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:03,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:03,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:06:03,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:03,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:03,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:03,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 23:06:03,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:03,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:06:03,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:03,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:06:03,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:03,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 23:06:03,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:03,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 23:06:03,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:03,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:03,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:03,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:06:03,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:03,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:06:03,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:03,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:06:03,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:03,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:06:03,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:03,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 23:06:03,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:03,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:03,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:03,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:03,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:03,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:06:03,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:03,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:06:03,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:03,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:06:03,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:03,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 23:06:03,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:03,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:03,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:03,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:06:03,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:03,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:06:03,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:03,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:06:03,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:03,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:06:03,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:03,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 23:06:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:03,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:03,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:03,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:06:03,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:03,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:06:03,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:03,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:06:03,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:03,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:06:03,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:03,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 23:06:03,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:03,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:04,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:04,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:06:04,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:04,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:06:04,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:04,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:06:04,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:06:04,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:06:04,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:04,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 23:06:04,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:04,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:04,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:04,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:04,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:04,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:06:04,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:04,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:04,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:06:04,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:04,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:04,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-27 23:06:04,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:04,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:04,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:04,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:06:04,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:04,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:06:04,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:04,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:04,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:06:04,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:04,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:04,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:06:04,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1706486429] [2020-10-27 23:06:04,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:06:04,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 23:06:04,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020924907] [2020-10-27 23:06:04,116 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 23:06:04,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:06:04,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 23:06:04,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:06:04,118 INFO L87 Difference]: Start difference. First operand 247 states and 338 transitions. Second operand 11 states. [2020-10-27 23:06:04,425 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 23:06:07,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:06:07,288 INFO L93 Difference]: Finished difference Result 637 states and 898 transitions. [2020-10-27 23:06:07,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 23:06:07,289 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 101 [2020-10-27 23:06:07,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:06:07,293 INFO L225 Difference]: With dead ends: 637 [2020-10-27 23:06:07,293 INFO L226 Difference]: Without dead ends: 440 [2020-10-27 23:06:07,298 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=152, Invalid=400, Unknown=0, NotChecked=0, Total=552 [2020-10-27 23:06:07,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2020-10-27 23:06:07,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 417. [2020-10-27 23:06:07,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-10-27 23:06:07,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 584 transitions. [2020-10-27 23:06:07,380 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 584 transitions. Word has length 101 [2020-10-27 23:06:07,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:06:07,380 INFO L481 AbstractCegarLoop]: Abstraction has 417 states and 584 transitions. [2020-10-27 23:06:07,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 23:06:07,380 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 584 transitions. [2020-10-27 23:06:07,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-27 23:06:07,389 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:06:07,390 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] [2020-10-27 23:06:07,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 23:06:07,390 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:06:07,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:06:07,391 INFO L82 PathProgramCache]: Analyzing trace with hash 658858695, now seen corresponding path program 1 times [2020-10-27 23:06:07,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:06:07,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [281540836] [2020-10-27 23:06:07,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:06:07,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:07,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:07,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:07,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:10,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:10,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-27 23:06:10,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 23:06:10,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3421 [2020-10-27 23:06:10,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:10,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:06:10,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-27 23:06:10,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-27 23:06:10,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:11,139 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:06:11,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:06:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:11,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:11,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:11,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:06:11,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:11,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:06:11,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:11,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:11,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:11,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:11,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:11,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:06:11,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:11,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:11,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:11,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 23:06:11,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:11,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:06:11,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:11,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:06:11,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:11,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 23:06:11,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:11,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 23:06:11,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:11,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:11,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:11,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:06:11,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:11,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:06:11,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:11,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:06:11,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:11,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:06:11,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:11,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 23:06:11,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:11,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:11,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:11,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:11,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:11,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:06:11,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:11,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:06:11,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:11,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:06:11,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:11,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 23:06:11,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:11,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:11,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:11,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:06:11,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:11,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:06:11,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:11,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:06:11,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:11,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:06:11,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:11,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 23:06:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:11,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:11,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:11,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:06:11,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:11,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:06:11,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:11,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:06:11,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:06:11,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:06:11,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:11,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 23:06:11,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:11,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:11,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:11,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:11,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:11,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:06:11,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:11,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:11,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:06:11,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:11,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:11,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 23:06:11,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:11,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:11,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:11,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:11,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:11,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:06:11,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:11,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:11,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:06:11,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:11,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:11,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 23:06:11,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:11,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:11,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:11,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:06:11,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:11,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:06:11,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:11,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:11,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:06:11,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:11,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:11,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:06:11,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [281540836] [2020-10-27 23:06:11,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:06:11,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 23:06:11,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52407520] [2020-10-27 23:06:11,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 23:06:11,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:06:11,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 23:06:11,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:06:11,455 INFO L87 Difference]: Start difference. First operand 417 states and 584 transitions. Second operand 11 states. [2020-10-27 23:06:11,763 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 23:06:14,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:06:14,358 INFO L93 Difference]: Finished difference Result 1139 states and 1616 transitions. [2020-10-27 23:06:14,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 23:06:14,358 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 102 [2020-10-27 23:06:14,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:06:14,368 INFO L225 Difference]: With dead ends: 1139 [2020-10-27 23:06:14,368 INFO L226 Difference]: Without dead ends: 772 [2020-10-27 23:06:14,372 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-27 23:06:14,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2020-10-27 23:06:14,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 733. [2020-10-27 23:06:14,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2020-10-27 23:06:14,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1036 transitions. [2020-10-27 23:06:14,482 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1036 transitions. Word has length 102 [2020-10-27 23:06:14,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:06:14,485 INFO L481 AbstractCegarLoop]: Abstraction has 733 states and 1036 transitions. [2020-10-27 23:06:14,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 23:06:14,485 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1036 transitions. [2020-10-27 23:06:14,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-27 23:06:14,486 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:06:14,487 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:06:14,487 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 23:06:14,487 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:06:14,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:06:14,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1750626152, now seen corresponding path program 1 times [2020-10-27 23:06:14,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:06:14,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1372805527] [2020-10-27 23:06:14,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:06:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:14,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:14,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:16,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:16,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 23:06:16,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:06:16,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1999 [2020-10-27 23:06:16,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:16,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:06:16,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 23:06:16,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-27 23:06:16,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:16,811 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:06:16,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:06:16,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:16,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:16,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:16,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:06:16,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:16,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:06:16,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:16,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:16,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:16,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:16,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:16,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:06:16,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:16,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:16,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:16,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 23:06:16,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:16,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:06:16,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:16,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:06:16,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:16,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:06:16,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:16,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 23:06:16,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:16,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:16,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:16,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:06:16,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:16,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:06:16,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:16,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:06:16,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:16,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:06:16,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:16,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 23:06:16,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:16,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:16,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:16,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:16,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:16,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:06:16,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:16,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:06:16,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:16,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:06:16,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:16,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 23:06:16,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:16,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:16,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:16,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:06:16,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:16,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:06:16,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:16,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:06:16,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:06:16,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:06:16,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:17,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 23:06:17,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:17,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:17,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:17,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:17,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:17,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:06:17,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:17,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:17,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:06:17,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:17,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:17,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 23:06:17,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:17,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:17,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:17,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:17,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:17,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:06:17,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:17,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:17,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:06:17,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:17,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:17,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 23:06:17,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:17,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:17,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:17,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:17,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:17,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:06:17,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:17,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:17,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:06:17,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:17,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:17,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 23:06:17,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:17,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:17,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:17,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:06:17,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:17,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 23:06:17,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:17,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:17,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:06:17,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:17,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:17,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:06:17,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1372805527] [2020-10-27 23:06:17,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:06:17,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 23:06:17,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483269290] [2020-10-27 23:06:17,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 23:06:17,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:06:17,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 23:06:17,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:06:17,172 INFO L87 Difference]: Start difference. First operand 733 states and 1036 transitions. Second operand 11 states. [2020-10-27 23:06:17,502 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 23:06:18,303 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-27 23:06:20,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:06:20,436 INFO L93 Difference]: Finished difference Result 2067 states and 2928 transitions. [2020-10-27 23:06:20,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 23:06:20,438 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2020-10-27 23:06:20,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:06:20,447 INFO L225 Difference]: With dead ends: 2067 [2020-10-27 23:06:20,447 INFO L226 Difference]: Without dead ends: 1384 [2020-10-27 23:06:20,452 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-27 23:06:20,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2020-10-27 23:06:20,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1317. [2020-10-27 23:06:20,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1317 states. [2020-10-27 23:06:20,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1317 states to 1317 states and 1860 transitions. [2020-10-27 23:06:20,564 INFO L78 Accepts]: Start accepts. Automaton has 1317 states and 1860 transitions. Word has length 103 [2020-10-27 23:06:20,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:06:20,564 INFO L481 AbstractCegarLoop]: Abstraction has 1317 states and 1860 transitions. [2020-10-27 23:06:20,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 23:06:20,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1317 states and 1860 transitions. [2020-10-27 23:06:20,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-27 23:06:20,566 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:06:20,566 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:06:20,566 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 23:06:20,566 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:06:20,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:06:20,567 INFO L82 PathProgramCache]: Analyzing trace with hash -708239357, now seen corresponding path program 1 times [2020-10-27 23:06:20,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:06:20,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1832209977] [2020-10-27 23:06:20,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:06:20,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:20,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:20,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:24,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:24,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-27 23:06:24,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:06:24,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4361 [2020-10-27 23:06:24,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:24,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 23:06:24,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 23:06:24,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-27 23:06:24,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:25,379 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:06:25,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:06:25,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:25,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:25,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:25,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:06:25,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:25,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:06:25,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:25,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:25,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:25,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:25,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:25,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:06:25,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:25,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:25,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:25,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 23:06:25,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:25,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-27 23:06:25,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:25,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 23:06:25,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:25,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 23:06:25,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:25,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 23:06:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:25,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:25,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:25,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:06:25,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:25,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:06:25,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:25,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:06:25,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:25,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:06:25,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:25,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 23:06:25,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:25,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:25,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:25,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:25,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:25,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 23:06:25,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:25,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:06:25,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:06:25,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:06:25,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:25,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 23:06:25,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:25,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:25,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:25,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:25,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:25,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:06:25,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:25,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:06:25,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:06:25,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:06:25,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:25,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:06:25,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:25,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:25,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:25,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:25,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:25,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:06:25,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:25,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:06:25,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:06:25,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:06:25,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:26,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:06:26,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:26,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:26,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:26,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:26,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:26,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 23:06:26,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:26,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:06:26,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:06:26,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:06:26,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:26,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 23:06:26,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:26,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:26,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:26,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:26,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:26,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:06:26,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:26,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:06:26,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:06:26,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:06:26,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:26,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 23:06:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:26,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:26,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:26,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:06:26,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:26,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:06:26,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:26,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:06:26,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:06:26,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:06:26,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:26,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:06:26,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1832209977] [2020-10-27 23:06:26,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:06:26,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-27 23:06:26,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363761969] [2020-10-27 23:06:26,202 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 23:06:26,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:06:26,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 23:06:26,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2020-10-27 23:06:26,204 INFO L87 Difference]: Start difference. First operand 1317 states and 1860 transitions. Second operand 19 states. [2020-10-27 23:06:26,528 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 23:06:26,820 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-27 23:06:27,095 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-27 23:06:27,378 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 23:06:27,702 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-27 23:06:29,891 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-27 23:06:34,411 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 23:06:34,688 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 23:06:34,979 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-27 23:06:35,282 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 23:06:42,789 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 23:06:44,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:06:44,006 INFO L93 Difference]: Finished difference Result 16302 states and 23194 transitions. [2020-10-27 23:06:44,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2020-10-27 23:06:44,007 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 104 [2020-10-27 23:06:44,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:06:44,096 INFO L225 Difference]: With dead ends: 16302 [2020-10-27 23:06:44,096 INFO L226 Difference]: Without dead ends: 15035 [2020-10-27 23:06:44,113 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3962 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=2082, Invalid=9260, Unknown=0, NotChecked=0, Total=11342 [2020-10-27 23:06:44,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15035 states. [2020-10-27 23:06:45,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15035 to 14301. [2020-10-27 23:06:45,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14301 states. [2020-10-27 23:06:45,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14301 states to 14301 states and 20452 transitions. [2020-10-27 23:06:45,441 INFO L78 Accepts]: Start accepts. Automaton has 14301 states and 20452 transitions. Word has length 104 [2020-10-27 23:06:45,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:06:45,443 INFO L481 AbstractCegarLoop]: Abstraction has 14301 states and 20452 transitions. [2020-10-27 23:06:45,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-27 23:06:45,443 INFO L276 IsEmpty]: Start isEmpty. Operand 14301 states and 20452 transitions. [2020-10-27 23:06:45,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-27 23:06:45,445 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:06:45,445 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 23:06:45,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 23:06:45,445 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:06:45,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:06:45,446 INFO L82 PathProgramCache]: Analyzing trace with hash -191104239, now seen corresponding path program 1 times [2020-10-27 23:06:45,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:06:45,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [617828049] [2020-10-27 23:06:45,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:06:45,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:45,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:45,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:47,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:47,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-27 23:06:47,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:06:47,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2409 [2020-10-27 23:06:47,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:47,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:06:47,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-27 23:06:47,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 23:06:47,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:48,209 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:06:48,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:06:48,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:48,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:48,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:48,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:06:48,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:48,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 23:06:48,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:48,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:48,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:48,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:48,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:48,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:06:48,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:48,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:48,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:48,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 23:06:48,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:48,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:06:48,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:48,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:48,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:48,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:48,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:48,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 23:06:48,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:48,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:48,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:48,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:06:48,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:48,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:06:48,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:48,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:48,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:48,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:48,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:48,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 23:06:48,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:48,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:48,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:48,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:48,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:48,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:06:48,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:48,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:48,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:48,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:48,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:48,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 23:06:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:48,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:48,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:48,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:48,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:48,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:06:48,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:48,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:48,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:48,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:48,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:48,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:06:48,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:48,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:48,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:48,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:48,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:48,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:06:48,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:48,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:48,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:48,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:48,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:48,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:06:48,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:48,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:48,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:48,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:48,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:48,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:06:48,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:48,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:48,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:48,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:48,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:48,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 23:06:48,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:48,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:48,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:48,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:48,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:48,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:06:48,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:48,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:48,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:48,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:48,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:48,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 23:06:48,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:48,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:48,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:48,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:06:48,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:48,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:06:48,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:48,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:06:48,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:48,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 23:06:48,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:48,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:06:48,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [617828049] [2020-10-27 23:06:48,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:06:48,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 23:06:48,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577000628] [2020-10-27 23:06:48,495 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 23:06:48,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:06:48,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 23:06:48,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-27 23:06:48,496 INFO L87 Difference]: Start difference. First operand 14301 states and 20452 transitions. Second operand 14 states. [2020-10-27 23:06:50,325 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-27 23:06:50,591 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-27 23:06:50,918 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 23:06:51,220 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 23:06:52,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:06:52,685 INFO L93 Difference]: Finished difference Result 16912 states and 24390 transitions. [2020-10-27 23:06:52,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 23:06:52,686 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 105 [2020-10-27 23:06:52,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:06:52,778 INFO L225 Difference]: With dead ends: 16912 [2020-10-27 23:06:52,779 INFO L226 Difference]: Without dead ends: 16909 [2020-10-27 23:06:52,789 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2020-10-27 23:06:52,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16909 states. [2020-10-27 23:06:53,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16909 to 15165. [2020-10-27 23:06:53,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15165 states. [2020-10-27 23:06:54,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15165 states to 15165 states and 21316 transitions. [2020-10-27 23:06:54,018 INFO L78 Accepts]: Start accepts. Automaton has 15165 states and 21316 transitions. Word has length 105 [2020-10-27 23:06:54,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:06:54,019 INFO L481 AbstractCegarLoop]: Abstraction has 15165 states and 21316 transitions. [2020-10-27 23:06:54,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 23:06:54,019 INFO L276 IsEmpty]: Start isEmpty. Operand 15165 states and 21316 transitions. [2020-10-27 23:06:54,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-27 23:06:54,020 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:06:54,021 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:06:54,021 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 23:06:54,021 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:06:54,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:06:54,022 INFO L82 PathProgramCache]: Analyzing trace with hash 395121387, now seen corresponding path program 1 times [2020-10-27 23:06:54,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:06:54,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1295627860] [2020-10-27 23:06:54,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:06:54,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:54,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:54,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:55,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:55,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-27 23:06:55,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:06:55,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1219 [2020-10-27 23:06:55,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:55,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 23:06:55,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 23:06:55,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-27 23:06:55,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:55,590 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:06:55,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:06:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:55,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:55,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:55,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:06:55,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:55,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:06:55,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:55,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:55,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:55,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:55,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:55,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:06:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:55,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:55,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:55,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 23:06:55,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:55,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:06:55,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:55,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:06:55,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:55,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 23:06:55,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:55,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 23:06:55,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:55,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:55,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:55,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:06:55,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:55,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:06:55,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:55,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:06:55,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:55,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:06:55,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:55,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 23:06:55,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:55,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:55,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:55,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:55,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:55,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:06:55,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:55,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:06:55,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:55,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:06:55,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:55,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 23:06:55,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:55,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:55,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:55,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:55,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:55,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:06:55,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:55,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:06:55,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:55,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:06:55,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:55,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:06:55,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:55,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:55,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:55,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:55,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:55,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:06:55,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:55,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:06:55,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:55,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:06:55,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:55,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:06:55,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:55,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:55,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:55,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:55,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:55,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:06:55,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:55,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:06:55,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:55,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:06:55,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:55,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 23:06:55,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:55,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:55,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:55,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:55,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:55,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:06:55,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:55,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:06:55,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 23:06:55,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:06:55,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:56,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 23:06:56,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:56,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:56,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:56,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:56,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:56,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:06:56,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:56,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:56,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:06:56,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:56,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:56,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:06:56,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1295627860] [2020-10-27 23:06:56,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:06:56,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-27 23:06:56,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310623862] [2020-10-27 23:06:56,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-27 23:06:56,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:06:56,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-27 23:06:56,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2020-10-27 23:06:56,095 INFO L87 Difference]: Start difference. First operand 15165 states and 21316 transitions. Second operand 18 states. [2020-10-27 23:06:56,504 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:06:56,838 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:06:57,792 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:06:58,613 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-27 23:06:58,957 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:06:59,291 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 23:07:00,426 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 23:07:00,767 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-27 23:07:01,078 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-27 23:07:01,422 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-27 23:07:01,733 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-27 23:07:02,102 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-27 23:07:02,409 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 23:07:04,331 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 23:07:04,675 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 23:07:04,980 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:07:05,336 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 23:07:05,634 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:07:05,960 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 23:07:06,267 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:07:06,665 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:07:06,961 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:07:07,282 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:07:07,577 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:07:08,182 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:07:08,475 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:07:09,048 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:07:09,343 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 23:07:10,704 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-27 23:07:12,504 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:07:12,847 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-27 23:07:13,184 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:07:13,516 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-27 23:07:13,835 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:07:14,180 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-27 23:07:14,516 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:07:14,853 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-27 23:07:15,239 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:07:15,566 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:07:15,891 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:07:16,233 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:07:16,558 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:07:16,889 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:07:17,366 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:07:17,676 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:07:18,014 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:07:18,330 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:07:18,649 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:07:18,982 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:07:19,154 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-27 23:07:19,619 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 23:07:19,928 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 23:07:20,246 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 23:07:20,551 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 23:07:20,884 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 23:07:21,220 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 23:07:21,738 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:07:22,337 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 23:07:22,644 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 23:07:23,437 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 23:07:23,758 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 23:07:24,066 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 23:07:33,804 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-27 23:07:33,985 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-27 23:07:40,544 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:07:40,709 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:07:40,882 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:07:41,115 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:07:41,520 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-27 23:07:41,840 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-27 23:07:42,644 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 23:07:43,835 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-27 23:07:47,547 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-27 23:07:47,708 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:07:47,884 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:07:48,054 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:07:48,265 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:07:48,766 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-27 23:07:49,159 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-27 23:07:49,505 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 23:07:49,672 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-27 23:07:50,003 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 23:07:50,155 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 23:07:55,225 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:07:55,400 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:07:55,576 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:07:55,803 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:07:56,141 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-27 23:07:56,317 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-27 23:07:56,513 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 23:07:56,670 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-27 23:07:56,854 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 23:07:57,012 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 23:07:57,187 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-27 23:07:57,378 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 23:07:57,535 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 23:07:57,721 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 23:07:58,283 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-27 23:07:59,719 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-27 23:08:24,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:08:24,981 INFO L93 Difference]: Finished difference Result 370604 states and 538470 transitions. [2020-10-27 23:08:24,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 303 states. [2020-10-27 23:08:24,983 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 106 [2020-10-27 23:08:24,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:08:27,058 INFO L225 Difference]: With dead ends: 370604 [2020-10-27 23:08:27,059 INFO L226 Difference]: Without dead ends: 355489 [2020-10-27 23:08:27,678 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 311 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42599 ImplicationChecksByTransitivity, 44.4s TimeCoverageRelationStatistics Valid=8249, Invalid=89407, Unknown=0, NotChecked=0, Total=97656 [2020-10-27 23:08:27,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355489 states. [2020-10-27 23:08:52,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355489 to 344305. [2020-10-27 23:08:52,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344305 states. [2020-10-27 23:08:54,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344305 states to 344305 states and 460354 transitions. [2020-10-27 23:08:54,939 INFO L78 Accepts]: Start accepts. Automaton has 344305 states and 460354 transitions. Word has length 106 [2020-10-27 23:08:54,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:08:54,940 INFO L481 AbstractCegarLoop]: Abstraction has 344305 states and 460354 transitions. [2020-10-27 23:08:54,940 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-27 23:08:54,940 INFO L276 IsEmpty]: Start isEmpty. Operand 344305 states and 460354 transitions. [2020-10-27 23:08:54,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-27 23:08:54,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:08:54,965 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:08:54,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 23:08:54,966 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:08:54,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:08:54,966 INFO L82 PathProgramCache]: Analyzing trace with hash -561038865, now seen corresponding path program 1 times [2020-10-27 23:08:54,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:08:54,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [96683965] [2020-10-27 23:08:54,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:08:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:55,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:55,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:56,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:56,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-27 23:08:56,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:08:56,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1056 [2020-10-27 23:08:56,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:56,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:56,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-27 23:08:56,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-27 23:08:56,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:56,458 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:08:56,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:08:56,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:56,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:56,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:56,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:08:56,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:56,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:08:56,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:56,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:56,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:56,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:56,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:56,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:08:56,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:56,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:56,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:56,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 23:08:56,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:56,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:08:56,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:56,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:56,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:56,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:08:56,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:56,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 23:08:56,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:56,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:56,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:56,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:08:56,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:56,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:08:56,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:56,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:56,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:56,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:08:56,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:56,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 23:08:56,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:56,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:56,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:56,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 23:08:56,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:56,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:08:56,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:56,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:56,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:08:56,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 23:08:56,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:56,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:08:56,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:56,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:56,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:56,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:56,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:56,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:08:56,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:56,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:56,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:08:56,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:56,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:56,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 23:08:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:56,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:56,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:56,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:56,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:56,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:08:56,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:56,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:56,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:08:56,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:56,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:56,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 23:08:56,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:56,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:56,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:56,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:56,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:56,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:08:56,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:56,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:56,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:08:56,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:56,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:56,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 23:08:56,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:56,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:56,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:56,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:56,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:56,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:08:56,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:56,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:56,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:08:56,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:56,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:56,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-27 23:08:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:56,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:56,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:56,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:56,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:56,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:08:56,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:56,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:56,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:08:56,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:56,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:56,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:08:56,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [96683965] [2020-10-27 23:08:56,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:08:56,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 23:08:56,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583663942] [2020-10-27 23:08:56,760 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 23:08:56,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:08:56,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 23:08:56,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:08:56,761 INFO L87 Difference]: Start difference. First operand 344305 states and 460354 transitions. Second operand 11 states. [2020-10-27 23:08:57,140 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 23:08:59,229 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 171