/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5.1.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 22:51:08,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 22:51:08,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 22:51:08,085 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 22:51:08,086 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 22:51:08,087 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 22:51:08,089 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 22:51:08,091 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 22:51:08,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 22:51:08,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 22:51:08,096 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 22:51:08,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 22:51:08,098 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 22:51:08,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 22:51:08,101 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 22:51:08,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 22:51:08,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 22:51:08,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 22:51:08,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 22:51:08,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 22:51:08,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 22:51:08,113 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 22:51:08,114 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 22:51:08,115 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 22:51:08,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 22:51:08,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 22:51:08,132 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 22:51:08,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 22:51:08,135 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 22:51:08,139 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 22:51:08,140 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 22:51:08,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 22:51:08,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 22:51:08,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 22:51:08,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 22:51:08,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 22:51:08,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 22:51:08,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 22:51:08,150 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 22:51:08,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 22:51:08,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 22:51:08,153 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 22:51:08,213 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 22:51:08,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 22:51:08,215 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 22:51:08,216 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 22:51:08,217 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 22:51:08,217 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 22:51:08,217 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 22:51:08,217 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 22:51:08,217 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 22:51:08,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 22:51:08,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 22:51:08,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 22:51:08,219 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 22:51:08,219 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 22:51:08,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 22:51:08,220 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 22:51:08,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 22:51:08,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 22:51:08,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 22:51:08,222 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 22:51:08,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 22:51:08,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 22:51:08,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 22:51:08,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 22:51:08,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 22:51:08,224 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 22:51:08,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 22:51:08,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 22:51:08,228 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 22:51:08,229 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 22:51:08,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 22:51:08,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 22:51:08,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 22:51:08,650 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 22:51:08,651 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 22:51:08,652 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5.1.ufo.BOUNDED-10.pals.c [2020-10-27 22:51:08,755 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2fb41d155/274e55ecc1c04111bccb4ebe0147a3cf/FLAG5a983a909 [2020-10-27 22:51:09,597 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 22:51:09,598 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5.1.ufo.BOUNDED-10.pals.c [2020-10-27 22:51:09,639 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2fb41d155/274e55ecc1c04111bccb4ebe0147a3cf/FLAG5a983a909 [2020-10-27 22:51:09,779 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2fb41d155/274e55ecc1c04111bccb4ebe0147a3cf [2020-10-27 22:51:09,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 22:51:09,790 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 22:51:09,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 22:51:09,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 22:51:09,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 22:51:09,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:51:09" (1/1) ... [2020-10-27 22:51:09,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d2737ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:51:09, skipping insertion in model container [2020-10-27 22:51:09,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:51:09" (1/1) ... [2020-10-27 22:51:09,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 22:51:09,905 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 22:51:10,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:51:10,584 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 22:51:10,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:51:10,741 INFO L208 MainTranslator]: Completed translation [2020-10-27 22:51:10,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:51:10 WrapperNode [2020-10-27 22:51:10,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 22:51:10,744 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 22:51:10,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 22:51:10,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 22:51:10,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:51:10" (1/1) ... [2020-10-27 22:51:10,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:51:10" (1/1) ... [2020-10-27 22:51:10,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:51:10" (1/1) ... [2020-10-27 22:51:10,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:51:10" (1/1) ... [2020-10-27 22:51:10,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:51:10" (1/1) ... [2020-10-27 22:51:10,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:51:10" (1/1) ... [2020-10-27 22:51:10,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:51:10" (1/1) ... [2020-10-27 22:51:10,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 22:51:10,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 22:51:10,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 22:51:10,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 22:51:10,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:51:10" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 22:51:11,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 22:51:11,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 22:51:11,048 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 22:51:11,049 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 22:51:11,049 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-27 22:51:11,050 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-27 22:51:11,050 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-27 22:51:11,050 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-27 22:51:11,050 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-27 22:51:11,050 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 22:51:11,051 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 22:51:11,051 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 22:51:11,052 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 22:51:11,052 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 22:51:11,052 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 22:51:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 22:51:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 22:51:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 22:51:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 22:51:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 22:51:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 22:51:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 22:51:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 22:51:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-27 22:51:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-27 22:51:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-27 22:51:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-27 22:51:11,055 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-27 22:51:11,055 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 22:51:11,055 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 22:51:11,055 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 22:51:11,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 22:51:11,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 22:51:11,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 22:51:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 22:51:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 22:51:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 22:51:13,366 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 22:51:13,367 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 22:51:13,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:51:13 BoogieIcfgContainer [2020-10-27 22:51:13,371 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 22:51:13,373 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 22:51:13,373 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 22:51:13,377 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 22:51:13,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 10:51:09" (1/3) ... [2020-10-27 22:51:13,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@356d5bb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:51:13, skipping insertion in model container [2020-10-27 22:51:13,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:51:10" (2/3) ... [2020-10-27 22:51:13,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@356d5bb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:51:13, skipping insertion in model container [2020-10-27 22:51:13,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:51:13" (3/3) ... [2020-10-27 22:51:13,381 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_floodmax.5.1.ufo.BOUNDED-10.pals.c [2020-10-27 22:51:13,395 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 22:51:13,401 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 22:51:13,416 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 22:51:13,449 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 22:51:13,449 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 22:51:13,449 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 22:51:13,450 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 22:51:13,450 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 22:51:13,450 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 22:51:13,450 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 22:51:13,450 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 22:51:13,484 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states. [2020-10-27 22:51:13,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-27 22:51:13,515 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:51:13,516 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:51:13,517 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:51:13,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:51:13,524 INFO L82 PathProgramCache]: Analyzing trace with hash -896724743, now seen corresponding path program 1 times [2020-10-27 22:51:13,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:51:13,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [448965327] [2020-10-27 22:51:13,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:51:14,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:14,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:15,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:15,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-27 22:51:15,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:15,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 986 [2020-10-27 22:51:15,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:15,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:51:15,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-10-27 22:51:15,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:51:15,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 22:51:16,132 WARN L193 SmtUtils]: Spent 856.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:51:16,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:51:16,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:16,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:16,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:16,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:51:16,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:16,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-27 22:51:16,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:16,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:51:16,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:51:16,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:51:16,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:16,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:51:16,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:16,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:16,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:16,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-27 22:51:16,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:16,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-10-27 22:51:16,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:16,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:51:16,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:51:16,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:51:16,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:51:16,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-27 22:51:16,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:16,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:16,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:16,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:51:16,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:16,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:51:16,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:16,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:51:16,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 22:51:16,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:51:16,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 22:51:16,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-27 22:51:16,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:16,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:16,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:16,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:51:16,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:16,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:51:16,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:16,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:51:16,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:51:16,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:51:16,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:51:16,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-27 22:51:16,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:16,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:16,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:16,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:51:16,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:16,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 22:51:16,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:16,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:51:16,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:51:16,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:51:16,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:16,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-27 22:51:16,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:16,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:16,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:16,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:51:16,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:16,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:51:16,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:16,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:51:16,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:51:16,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:51:16,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:16,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-27 22:51:16,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:16,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:16,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:16,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:51:16,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:16,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:51:16,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:16,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:51:16,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:51:16,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:51:16,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:16,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-27 22:51:16,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:16,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:16,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:16,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:51:16,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:16,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:51:16,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:16,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:51:16,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:51:16,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:51:16,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:16,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-27 22:51:16,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:16,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:16,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:16,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:51:16,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:16,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:51:16,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:16,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:51:16,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:51:16,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:51:16,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:17,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:51:17,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [448965327] [2020-10-27 22:51:17,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:51:17,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 22:51:17,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670373380] [2020-10-27 22:51:17,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 22:51:17,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:51:17,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 22:51:17,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-27 22:51:17,054 INFO L87 Difference]: Start difference. First operand 722 states. Second operand 8 states. [2020-10-27 22:51:20,340 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:51:20,912 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:51:21,594 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:51:22,229 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:51:22,887 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:51:23,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:51:23,704 INFO L93 Difference]: Finished difference Result 956 states and 1681 transitions. [2020-10-27 22:51:23,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 22:51:23,710 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 183 [2020-10-27 22:51:23,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:51:23,759 INFO L225 Difference]: With dead ends: 956 [2020-10-27 22:51:23,759 INFO L226 Difference]: Without dead ends: 764 [2020-10-27 22:51:23,769 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-27 22:51:23,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2020-10-27 22:51:24,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 714. [2020-10-27 22:51:24,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 714 states. [2020-10-27 22:51:24,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 1288 transitions. [2020-10-27 22:51:24,024 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 1288 transitions. Word has length 183 [2020-10-27 22:51:24,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:51:24,025 INFO L481 AbstractCegarLoop]: Abstraction has 714 states and 1288 transitions. [2020-10-27 22:51:24,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 22:51:24,025 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 1288 transitions. [2020-10-27 22:51:24,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-27 22:51:24,035 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:51:24,035 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:51:24,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 22:51:24,036 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:51:24,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:51:24,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1042437303, now seen corresponding path program 1 times [2020-10-27 22:51:24,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:51:24,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2025555017] [2020-10-27 22:51:24,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:51:24,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:24,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:26,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:26,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-27 22:51:26,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:26,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2761 [2020-10-27 22:51:26,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:26,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:51:26,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-27 22:51:26,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:51:26,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:51:27,976 WARN L193 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:51:27,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:51:27,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:27,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:28,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:28,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:51:28,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:28,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 22:51:28,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:28,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:51:28,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:51:28,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:51:28,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:28,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:51:28,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:28,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:28,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:28,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-27 22:51:28,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:28,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 656 [2020-10-27 22:51:28,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:28,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:51:28,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:51:28,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-27 22:51:28,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:51:28,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-27 22:51:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:28,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:28,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:28,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:51:28,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:28,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:51:28,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:28,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:51:28,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:51:28,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:51:28,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:29,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-27 22:51:29,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:29,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:29,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:29,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:51:29,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:29,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 22:51:29,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:29,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:51:29,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:51:29,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:51:29,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 22:51:29,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-27 22:51:29,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:29,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:29,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:29,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:51:29,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:29,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:51:29,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:29,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:51:29,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:51:29,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:51:29,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:29,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-27 22:51:29,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:29,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:29,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:29,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:51:29,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:29,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:51:29,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:29,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:51:29,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:51:29,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:51:29,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:29,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-27 22:51:29,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:29,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:29,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:29,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:51:29,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:29,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:51:29,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:29,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:51:29,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:51:29,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:51:29,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:29,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-27 22:51:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:29,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:29,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:29,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:51:29,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:29,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:51:29,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:29,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:51:29,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:51:29,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:51:29,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:29,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-27 22:51:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:29,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:29,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:29,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:51:29,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:29,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:51:29,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:29,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:51:29,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:51:29,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:51:29,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:29,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:51:29,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2025555017] [2020-10-27 22:51:29,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:51:29,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 22:51:29,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213097443] [2020-10-27 22:51:29,384 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 22:51:29,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:51:29,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 22:51:29,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-27 22:51:29,385 INFO L87 Difference]: Start difference. First operand 714 states and 1288 transitions. Second operand 14 states. [2020-10-27 22:51:38,563 WARN L193 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2020-10-27 22:51:39,410 WARN L193 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 390 [2020-10-27 22:51:40,414 WARN L193 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 396 [2020-10-27 22:51:41,248 WARN L193 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 400 [2020-10-27 22:51:42,121 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:51:42,733 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:51:43,490 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:51:44,260 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:51:44,997 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:51:46,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:51:46,307 INFO L93 Difference]: Finished difference Result 957 states and 1683 transitions. [2020-10-27 22:51:46,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 22:51:46,308 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 183 [2020-10-27 22:51:46,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:51:46,315 INFO L225 Difference]: With dead ends: 957 [2020-10-27 22:51:46,315 INFO L226 Difference]: Without dead ends: 775 [2020-10-27 22:51:46,318 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-27 22:51:46,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2020-10-27 22:51:46,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 714. [2020-10-27 22:51:46,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 714 states. [2020-10-27 22:51:46,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 1248 transitions. [2020-10-27 22:51:46,481 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 1248 transitions. Word has length 183 [2020-10-27 22:51:46,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:51:46,482 INFO L481 AbstractCegarLoop]: Abstraction has 714 states and 1248 transitions. [2020-10-27 22:51:46,482 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 22:51:46,482 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 1248 transitions. [2020-10-27 22:51:46,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-10-27 22:51:46,486 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:51:46,487 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:51:46,487 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 22:51:46,487 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:51:46,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:51:46,488 INFO L82 PathProgramCache]: Analyzing trace with hash -2058454871, now seen corresponding path program 1 times [2020-10-27 22:51:46,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:51:46,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1190937633] [2020-10-27 22:51:46,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:51:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:46,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:46,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:47,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:48,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:51,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:51,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-27 22:51:51,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 22:51:51,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5115 [2020-10-27 22:51:51,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:51,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:51:51,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 154 [2020-10-27 22:51:51,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-27 22:51:51,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:51:52,550 WARN L193 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:51:52,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:51:52,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:52,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:52,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:52,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:51:52,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:52,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 22:51:52,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:52,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:51:52,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:51:52,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:51:52,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:52,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:51:52,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:52,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:52,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:52,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 22:51:52,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:52,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-10-27 22:51:52,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:52,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:51:52,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:51:52,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-27 22:51:52,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:51:52,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-27 22:51:53,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:53,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:53,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:53,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:51:53,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:53,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:51:53,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:53,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:51:53,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:51:53,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:51:53,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:53,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-27 22:51:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:53,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:53,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:53,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:51:53,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:53,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:51:53,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:53,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:51:53,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:51:53,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:51:53,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:53,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-10-27 22:51:53,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:53,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:53,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:53,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:51:53,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:53,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:51:53,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:53,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:51:53,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:51:53,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:51:53,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:53,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-10-27 22:51:53,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:53,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:53,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:53,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:51:53,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:53,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:51:53,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:53,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:51:53,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:51:53,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:51:53,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:53,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-27 22:51:53,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:53,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:53,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:53,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:51:53,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:53,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 22:51:53,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:53,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:51:53,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:51:53,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:51:53,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:53,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-27 22:51:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:53,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:53,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:53,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:51:53,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:53,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:51:53,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:53,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:51:53,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:51:53,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:51:53,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:53,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-27 22:51:53,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:51:53,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:51:53,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:51:53,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:51:53,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:51:53,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:51:53,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:51:53,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:51:53,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:51:53,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:51:53,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:51:53,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:51:53,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1190937633] [2020-10-27 22:51:53,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:51:53,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:51:53,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940149215] [2020-10-27 22:51:53,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:51:53,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:51:53,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:51:53,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:51:53,418 INFO L87 Difference]: Start difference. First operand 714 states and 1248 transitions. Second operand 11 states. [2020-10-27 22:51:54,269 WARN L193 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:52:00,938 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:52:01,377 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:52:01,882 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:52:02,370 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:52:02,773 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:52:03,180 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:52:03,405 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:52:04,588 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:52:04,974 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:52:05,395 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:52:06,459 WARN L193 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:52:06,702 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:52:06,985 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:52:07,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:52:07,031 INFO L93 Difference]: Finished difference Result 1160 states and 1974 transitions. [2020-10-27 22:52:07,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 22:52:07,032 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 222 [2020-10-27 22:52:07,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:52:07,042 INFO L225 Difference]: With dead ends: 1160 [2020-10-27 22:52:07,043 INFO L226 Difference]: Without dead ends: 984 [2020-10-27 22:52:07,048 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-27 22:52:07,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2020-10-27 22:52:07,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 878. [2020-10-27 22:52:07,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 878 states. [2020-10-27 22:52:07,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1517 transitions. [2020-10-27 22:52:07,249 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1517 transitions. Word has length 222 [2020-10-27 22:52:07,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:52:07,251 INFO L481 AbstractCegarLoop]: Abstraction has 878 states and 1517 transitions. [2020-10-27 22:52:07,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:52:07,251 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1517 transitions. [2020-10-27 22:52:07,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-10-27 22:52:07,256 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:52:07,257 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:52:07,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 22:52:07,257 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:52:07,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:52:07,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1245750029, now seen corresponding path program 1 times [2020-10-27 22:52:07,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:52:07,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [860154635] [2020-10-27 22:52:07,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:52:07,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:07,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:07,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:08,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:08,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:09,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:09,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:10,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:12,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:12,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-10-27 22:52:12,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 22:52:12,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-27 22:52:12,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:12,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:52:12,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-10-27 22:52:12,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-27 22:52:12,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:13,316 WARN L193 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:52:13,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:52:13,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:13,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:13,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:13,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:52:13,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:13,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 22:52:13,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:13,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:13,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:52:13,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:13,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:13,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:52:13,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:13,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:13,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:13,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 22:52:13,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:13,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 384 [2020-10-27 22:52:13,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:13,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:52:13,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:52:13,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-27 22:52:13,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:52:13,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-27 22:52:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:13,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:13,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:13,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:52:13,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:13,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:52:13,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:13,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:52:13,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:52:13,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:52:13,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:13,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-27 22:52:13,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:13,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:13,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:13,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:52:13,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:13,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:52:13,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:13,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:52:13,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:52:13,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:52:13,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:14,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-10-27 22:52:14,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:14,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:14,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:14,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:52:14,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:14,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:52:14,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:14,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:52:14,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:52:14,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:52:14,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:14,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-10-27 22:52:14,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:14,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:14,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:14,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:52:14,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:14,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 22:52:14,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:14,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:52:14,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:52:14,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:52:14,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:14,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-27 22:52:14,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:14,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:14,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:14,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:52:14,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:14,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:52:14,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:14,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:14,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:52:14,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:14,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:14,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-10-27 22:52:14,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:14,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:14,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:14,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:52:14,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:14,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:52:14,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:14,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:14,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:52:14,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:14,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:14,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-10-27 22:52:14,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:14,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:14,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:14,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:52:14,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:14,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:52:14,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:14,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:14,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:52:14,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:14,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:14,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:52:14,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [860154635] [2020-10-27 22:52:14,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:52:14,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:52:14,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441820306] [2020-10-27 22:52:14,395 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:52:14,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:52:14,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:52:14,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:52:14,397 INFO L87 Difference]: Start difference. First operand 878 states and 1517 transitions. Second operand 11 states. [2020-10-27 22:52:15,247 WARN L193 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:52:21,942 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:52:22,445 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:52:23,051 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:52:23,512 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:52:23,994 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:52:24,225 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:52:25,051 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:52:25,253 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:52:26,734 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:52:27,128 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:52:28,154 WARN L193 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:52:28,376 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:52:28,693 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:52:28,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:52:28,761 INFO L93 Difference]: Finished difference Result 1746 states and 2927 transitions. [2020-10-27 22:52:28,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 22:52:28,765 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 226 [2020-10-27 22:52:28,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:52:28,775 INFO L225 Difference]: With dead ends: 1746 [2020-10-27 22:52:28,775 INFO L226 Difference]: Without dead ends: 1406 [2020-10-27 22:52:28,777 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-27 22:52:28,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1406 states. [2020-10-27 22:52:29,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1406 to 1197. [2020-10-27 22:52:29,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1197 states. [2020-10-27 22:52:29,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 2036 transitions. [2020-10-27 22:52:29,008 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 2036 transitions. Word has length 226 [2020-10-27 22:52:29,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:52:29,009 INFO L481 AbstractCegarLoop]: Abstraction has 1197 states and 2036 transitions. [2020-10-27 22:52:29,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:52:29,009 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 2036 transitions. [2020-10-27 22:52:29,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-10-27 22:52:29,014 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:52:29,015 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:52:29,015 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 22:52:29,015 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:52:29,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:52:29,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1679731151, now seen corresponding path program 1 times [2020-10-27 22:52:29,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:52:29,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [310958755] [2020-10-27 22:52:29,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:52:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:29,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:29,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:29,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:30,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:30,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:31,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:31,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:31,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:32,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:32,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:34,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:34,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 256 [2020-10-27 22:52:34,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-27 22:52:34,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5098 [2020-10-27 22:52:34,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:34,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:52:34,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-10-27 22:52:34,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-27 22:52:34,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:35,118 WARN L193 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:52:35,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:52:35,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:35,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:35,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:35,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:52:35,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:35,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-27 22:52:35,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:35,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:35,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:52:35,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:35,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:35,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:52:35,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:35,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:35,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:35,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 22:52:35,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:35,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-10-27 22:52:35,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:35,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:52:35,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:52:35,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-27 22:52:35,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:35,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-27 22:52:35,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:35,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:35,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:35,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:52:35,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:35,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:52:35,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:35,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:52:35,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:52:35,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:52:35,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:35,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-27 22:52:35,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:35,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:35,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:35,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:52:35,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:35,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:52:35,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:35,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:52:35,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:52:35,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:52:35,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:35,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-10-27 22:52:35,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:35,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:35,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:35,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:52:35,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:35,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 22:52:35,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:35,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:52:35,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:52:35,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:52:35,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:35,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-10-27 22:52:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:35,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:35,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:35,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:52:35,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:35,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:52:35,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:35,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:35,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:52:35,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:35,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:35,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2020-10-27 22:52:35,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:35,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:35,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:35,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:52:35,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:35,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:52:35,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:35,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:35,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:52:35,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:35,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:35,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-27 22:52:35,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:35,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:35,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:35,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:52:35,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:35,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:52:35,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:35,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:35,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:52:35,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:35,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:35,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-10-27 22:52:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:35,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:35,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:35,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:52:35,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:35,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:52:35,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:35,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:35,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:52:35,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:35,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:35,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:52:35,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [310958755] [2020-10-27 22:52:35,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:52:35,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:52:35,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342107179] [2020-10-27 22:52:35,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:52:35,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:52:35,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:52:35,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:52:35,978 INFO L87 Difference]: Start difference. First operand 1197 states and 2036 transitions. Second operand 11 states. [2020-10-27 22:52:36,860 WARN L193 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:52:43,261 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:52:43,759 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:52:44,233 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:52:44,720 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:52:44,937 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:52:45,797 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:52:46,055 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:52:46,873 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:52:47,085 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:52:48,537 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:52:49,555 WARN L193 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:52:49,792 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:52:50,100 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:52:50,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:52:50,185 INFO L93 Difference]: Finished difference Result 2891 states and 4776 transitions. [2020-10-27 22:52:50,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 22:52:50,186 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 230 [2020-10-27 22:52:50,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:52:50,199 INFO L225 Difference]: With dead ends: 2891 [2020-10-27 22:52:50,199 INFO L226 Difference]: Without dead ends: 2232 [2020-10-27 22:52:50,202 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-27 22:52:50,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2232 states. [2020-10-27 22:52:50,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2232 to 1817. [2020-10-27 22:52:50,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1817 states. [2020-10-27 22:52:50,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1817 states to 1817 states and 3036 transitions. [2020-10-27 22:52:50,463 INFO L78 Accepts]: Start accepts. Automaton has 1817 states and 3036 transitions. Word has length 230 [2020-10-27 22:52:50,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:52:50,464 INFO L481 AbstractCegarLoop]: Abstraction has 1817 states and 3036 transitions. [2020-10-27 22:52:50,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:52:50,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1817 states and 3036 transitions. [2020-10-27 22:52:50,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-10-27 22:52:50,470 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:52:50,470 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:52:50,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 22:52:50,470 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:52:50,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:52:50,471 INFO L82 PathProgramCache]: Analyzing trace with hash -2044579307, now seen corresponding path program 1 times [2020-10-27 22:52:50,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:52:50,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1065008551] [2020-10-27 22:52:50,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:52:50,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:50,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:50,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:51,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:51,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:51,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:55,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:55,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-10-27 22:52:55,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:52:55,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-27 22:52:55,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:55,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:52:55,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-10-27 22:52:55,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 22:52:55,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:56,464 WARN L193 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:52:56,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:52:56,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:56,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:56,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:56,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:52:56,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:56,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 22:52:56,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:56,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:56,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:52:56,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:56,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:56,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:52:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:56,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:56,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:56,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 22:52:56,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:56,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-27 22:52:56,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:56,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:52:56,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:52:56,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-27 22:52:56,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:56,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-27 22:52:56,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:56,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:56,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:56,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:52:56,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:56,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:52:56,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:56,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:52:56,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:52:56,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:52:56,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:56,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-27 22:52:56,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:56,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:56,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:56,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:52:56,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:56,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:52:56,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:56,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:52:56,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:52:56,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:52:56,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:57,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-10-27 22:52:57,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:57,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:57,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:57,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:52:57,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:57,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:52:57,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:57,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:57,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:52:57,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:57,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:57,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-27 22:52:57,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:57,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:57,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:57,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:52:57,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:57,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:52:57,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:57,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:57,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:52:57,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:57,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:57,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-27 22:52:57,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:57,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:57,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:57,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:52:57,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:57,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:52:57,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:57,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:57,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:52:57,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:57,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:57,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-10-27 22:52:57,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:57,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:57,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:57,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:52:57,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:57,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:52:57,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:57,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:57,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:52:57,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:57,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:57,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-10-27 22:52:57,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:57,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:57,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:57,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:52:57,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:57,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:52:57,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:57,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:57,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:52:57,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:57,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:57,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:52:57,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1065008551] [2020-10-27 22:52:57,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:52:57,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:52:57,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042945859] [2020-10-27 22:52:57,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:52:57,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:52:57,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:52:57,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:52:57,338 INFO L87 Difference]: Start difference. First operand 1817 states and 3036 transitions. Second operand 11 states. [2020-10-27 22:52:58,200 WARN L193 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:53:04,589 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:04,921 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:53:05,415 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:53:05,627 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:06,420 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:53:06,628 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:07,419 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:53:07,632 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:08,463 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:53:08,679 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:10,193 WARN L193 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:53:10,795 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:53:11,098 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:53:11,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:53:11,227 INFO L93 Difference]: Finished difference Result 5159 states and 8416 transitions. [2020-10-27 22:53:11,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 22:53:11,228 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 234 [2020-10-27 22:53:11,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:53:11,249 INFO L225 Difference]: With dead ends: 5159 [2020-10-27 22:53:11,249 INFO L226 Difference]: Without dead ends: 3880 [2020-10-27 22:53:11,255 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-27 22:53:11,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3880 states. [2020-10-27 22:53:11,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3880 to 3029. [2020-10-27 22:53:11,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3029 states. [2020-10-27 22:53:11,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3029 states to 3029 states and 4920 transitions. [2020-10-27 22:53:11,652 INFO L78 Accepts]: Start accepts. Automaton has 3029 states and 4920 transitions. Word has length 234 [2020-10-27 22:53:11,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:53:11,653 INFO L481 AbstractCegarLoop]: Abstraction has 3029 states and 4920 transitions. [2020-10-27 22:53:11,653 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:53:11,653 INFO L276 IsEmpty]: Start isEmpty. Operand 3029 states and 4920 transitions. [2020-10-27 22:53:11,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-10-27 22:53:11,660 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:53:11,661 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:53:11,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 22:53:11,661 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:53:11,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:53:11,662 INFO L82 PathProgramCache]: Analyzing trace with hash 197703609, now seen corresponding path program 1 times [2020-10-27 22:53:11,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:53:11,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2057392329] [2020-10-27 22:53:11,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:53:11,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:11,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:11,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:12,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:12,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:12,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:13,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:13,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:13,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:13,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:16,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:16,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-10-27 22:53:16,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-27 22:53:16,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-10-27 22:53:16,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:16,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:53:16,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-10-27 22:53:16,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 22:53:16,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:17,698 WARN L193 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:53:17,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:53:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:17,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:17,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:17,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:53:17,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:17,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 22:53:17,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:17,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:17,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:17,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:17,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:17,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:53:17,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:17,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:17,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:17,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 22:53:17,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:17,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-27 22:53:17,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:17,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:53:17,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:17,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-27 22:53:17,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:18,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-27 22:53:18,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:18,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:18,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:18,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:53:18,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:18,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:53:18,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:18,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:53:18,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:18,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:53:18,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:18,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-27 22:53:18,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:18,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:18,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:18,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:53:18,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:18,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:53:18,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:18,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:53:18,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:18,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:53:18,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:18,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-10-27 22:53:18,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:18,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:18,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:18,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:53:18,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:18,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 22:53:18,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:18,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:53:18,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:18,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:53:18,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:18,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-27 22:53:18,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:18,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:18,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:18,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:53:18,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:18,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 22:53:18,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:18,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:53:18,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:18,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:53:18,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:18,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-27 22:53:18,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:18,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:18,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:18,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:53:18,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:18,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:53:18,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:18,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:53:18,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:18,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:53:18,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:18,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-27 22:53:18,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:18,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:18,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:18,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:18,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:18,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:53:18,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:18,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:53:18,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:53:18,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:53:18,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:18,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-10-27 22:53:18,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:18,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:18,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:18,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:18,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:18,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:53:18,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:18,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:18,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:53:18,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:18,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:18,451 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 22:53:18,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2057392329] [2020-10-27 22:53:18,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:53:18,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:53:18,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328232059] [2020-10-27 22:53:18,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:53:18,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:53:18,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:53:18,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:53:18,454 INFO L87 Difference]: Start difference. First operand 3029 states and 4920 transitions. Second operand 11 states. [2020-10-27 22:53:19,345 WARN L193 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:53:26,135 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:53:26,805 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:53:27,448 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:53:28,100 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:53:28,771 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:29,168 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:53:30,516 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:31,043 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:31,551 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:32,040 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:33,122 WARN L193 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2020-10-27 22:53:33,368 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-27 22:53:33,700 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 22:53:33,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:53:33,770 INFO L93 Difference]: Finished difference Result 9515 states and 15180 transitions. [2020-10-27 22:53:33,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 22:53:33,771 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 238 [2020-10-27 22:53:33,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:53:33,808 INFO L225 Difference]: With dead ends: 9515 [2020-10-27 22:53:33,809 INFO L226 Difference]: Without dead ends: 7024 [2020-10-27 22:53:33,819 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=169, Invalid=431, Unknown=0, NotChecked=0, Total=600 [2020-10-27 22:53:33,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7024 states. [2020-10-27 22:53:34,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7024 to 5373. [2020-10-27 22:53:34,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5373 states. [2020-10-27 22:53:34,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5373 states to 5373 states and 8576 transitions. [2020-10-27 22:53:34,567 INFO L78 Accepts]: Start accepts. Automaton has 5373 states and 8576 transitions. Word has length 238 [2020-10-27 22:53:34,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:53:34,568 INFO L481 AbstractCegarLoop]: Abstraction has 5373 states and 8576 transitions. [2020-10-27 22:53:34,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:53:34,568 INFO L276 IsEmpty]: Start isEmpty. Operand 5373 states and 8576 transitions. [2020-10-27 22:53:34,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-10-27 22:53:34,578 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:53:34,578 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:53:34,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 22:53:34,579 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:53:34,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:53:34,579 INFO L82 PathProgramCache]: Analyzing trace with hash 485338845, now seen corresponding path program 1 times [2020-10-27 22:53:34,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:53:34,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [868894643] [2020-10-27 22:53:34,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:53:34,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:34,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:35,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:35,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:35,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:36,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:36,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:36,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:37,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:37,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:39,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:39,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-10-27 22:53:39,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-27 22:53:39,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-27 22:53:39,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:39,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 22:53:39,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-10-27 22:53:39,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-27 22:53:39,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:40,604 WARN L193 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:53:40,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:53:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:40,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:40,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:40,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:53:40,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:40,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 22:53:40,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:40,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:40,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:40,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:40,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:40,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:53:40,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:40,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:41,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:41,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 22:53:41,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:41,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 454 [2020-10-27 22:53:41,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:41,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 22:53:41,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:41,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-27 22:53:41,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:41,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-27 22:53:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:41,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:41,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:41,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:53:41,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:41,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:53:41,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:41,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:53:41,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:41,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:53:41,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:41,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-27 22:53:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:41,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:41,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:41,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:53:41,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:41,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 22:53:41,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:41,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:53:41,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:53:41,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:53:41,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:41,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-10-27 22:53:41,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:41,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:41,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:41,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:53:41,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:41,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 22:53:41,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:41,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:53:41,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:53:41,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:53:41,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:41,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-27 22:53:41,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:41,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:41,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:41,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:53:41,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:41,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 22:53:41,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:41,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:53:41,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:53:41,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:53:41,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:41,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-27 22:53:41,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:41,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:41,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:41,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:53:41,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:41,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 22:53:41,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:41,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:53:41,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:53:41,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:53:41,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:41,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-27 22:53:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:41,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:41,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:41,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:53:41,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:41,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:53:41,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:41,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:53:41,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:53:41,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:53:41,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:41,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-27 22:53:41,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:41,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:41,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:41,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:41,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:41,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:53:41,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:41,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:53:41,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 22:53:41,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:53:41,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:41,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:53:41,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [868894643] [2020-10-27 22:53:41,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:53:41,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-27 22:53:41,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149188610] [2020-10-27 22:53:41,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 22:53:41,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:53:41,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 22:53:41,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2020-10-27 22:53:41,819 INFO L87 Difference]: Start difference. First operand 5373 states and 8576 transitions. Second operand 19 states. [2020-10-27 22:53:42,704 WARN L193 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2020-10-27 22:53:50,543 WARN L193 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:53:51,379 WARN L193 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2020-10-27 22:53:52,216 WARN L193 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 389 [2020-10-27 22:53:53,103 WARN L193 SmtUtils]: Spent 852.00 ms on a formula simplification that was a NOOP. DAG size: 390 [2020-10-27 22:53:53,550 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 22:53:54,027 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:54,389 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 22:53:54,662 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 22:53:55,270 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:53:55,613 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:55,963 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 22:53:56,252 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:53:56,526 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:53:57,255 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:53:57,649 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:53:57,906 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:58,305 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 22:53:58,607 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 22:53:58,862 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:53:59,104 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:53:59,944 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 22:54:00,382 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:54:00,648 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:54:00,941 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:01,368 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 22:54:01,703 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 22:54:01,960 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 22:54:02,213 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:54:02,455 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:54:03,380 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:54:03,842 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 22:54:04,118 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:54:04,390 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:54:04,654 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:05,926 WARN L193 SmtUtils]: Spent 830.00 ms on a formula simplification that was a NOOP. DAG size: 393 [2020-10-27 22:54:06,786 WARN L193 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 392 [2020-10-27 22:54:07,632 WARN L193 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2020-10-27 22:54:08,500 WARN L193 SmtUtils]: Spent 828.00 ms on a formula simplification that was a NOOP. DAG size: 390 [2020-10-27 22:54:09,340 WARN L193 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2020-10-27 22:54:12,316 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-27 22:54:12,598 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 22:54:12,879 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 22:54:13,170 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-27 22:54:13,474 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 22:54:13,775 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-27 22:54:14,057 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 22:54:14,397 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 22:54:14,672 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:54:14,962 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:54:16,399 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 22:54:16,713 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 22:54:16,953 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-27 22:54:17,206 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 22:54:17,481 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 22:54:17,748 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 22:54:18,147 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 22:54:18,395 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:54:18,644 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 22:54:18,931 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 22:54:20,376 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 22:54:20,692 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-27 22:54:20,952 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 22:54:21,213 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 22:54:21,466 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-27 22:54:21,777 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 22:54:22,160 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-27 22:54:22,424 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 22:54:22,706 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 22:54:24,214 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 22:54:24,516 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-27 22:54:24,791 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 22:54:25,061 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 22:54:25,392 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-27 22:54:25,679 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 22:54:26,085 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-27 22:54:26,373 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 22:54:27,889 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-27 22:54:28,176 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-27 22:54:28,453 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 22:54:28,781 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 22:54:29,088 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-27 22:54:29,382 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 22:54:29,812 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-27 22:54:32,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:54:32,115 INFO L93 Difference]: Finished difference Result 44721 states and 71640 transitions. [2020-10-27 22:54:32,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2020-10-27 22:54:32,116 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 242 [2020-10-27 22:54:32,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:54:32,279 INFO L225 Difference]: With dead ends: 44721 [2020-10-27 22:54:32,279 INFO L226 Difference]: Without dead ends: 39886 [2020-10-27 22:54:32,313 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4104 ImplicationChecksByTransitivity, 28.0s TimeCoverageRelationStatistics Valid=2129, Invalid=9427, Unknown=0, NotChecked=0, Total=11556 [2020-10-27 22:54:32,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39886 states. [2020-10-27 22:54:34,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39886 to 29792. [2020-10-27 22:54:34,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29792 states. [2020-10-27 22:54:34,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29792 states to 29792 states and 47642 transitions. [2020-10-27 22:54:34,932 INFO L78 Accepts]: Start accepts. Automaton has 29792 states and 47642 transitions. Word has length 242 [2020-10-27 22:54:34,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:54:34,933 INFO L481 AbstractCegarLoop]: Abstraction has 29792 states and 47642 transitions. [2020-10-27 22:54:34,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-27 22:54:34,933 INFO L276 IsEmpty]: Start isEmpty. Operand 29792 states and 47642 transitions. [2020-10-27 22:54:34,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-10-27 22:54:34,953 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:54:34,953 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:54:34,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 22:54:34,953 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:54:34,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:54:34,954 INFO L82 PathProgramCache]: Analyzing trace with hash -2023746590, now seen corresponding path program 1 times [2020-10-27 22:54:34,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:54:34,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1324189860] [2020-10-27 22:54:34,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:54:35,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:35,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:35,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:35,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:35,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:35,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:37,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:37,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:38,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:38,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:38,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:40,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:40,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-10-27 22:54:40,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-27 22:54:40,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-27 22:54:40,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:40,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:54:40,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-10-27 22:54:40,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 22:54:40,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:40,959 WARN L193 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:54:40,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:54:40,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:40,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:40,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:40,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:54:40,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:40,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 22:54:40,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:40,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:40,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:40,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:40,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:41,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:54:41,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:41,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:41,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:41,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 22:54:41,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:41,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-10-27 22:54:41,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:41,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:54:41,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:41,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-10-27 22:54:41,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:41,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-27 22:54:41,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:41,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:41,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:41,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:54:41,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:41,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:54:41,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:41,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:54:41,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:41,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:54:41,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:41,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-27 22:54:41,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:41,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:41,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:41,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:54:41,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:41,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 22:54:41,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:41,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:54:41,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:54:41,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:54:41,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:41,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-10-27 22:54:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:41,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:41,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:41,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:54:41,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:41,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 22:54:41,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:41,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:54:41,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:41,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:54:41,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:41,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-27 22:54:41,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:41,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:41,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:41,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:54:41,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:41,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:54:41,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:41,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:54:41,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:41,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:54:41,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:41,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-27 22:54:41,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:41,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:41,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:41,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:54:41,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:41,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:54:41,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:41,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:54:41,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:41,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:54:41,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:41,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-27 22:54:41,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:41,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:41,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:41,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:54:41,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:41,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:54:41,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:41,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:54:41,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:41,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:54:41,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:41,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-27 22:54:41,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:41,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:41,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:41,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:54:41,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:41,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:54:41,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:41,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:54:41,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 22:54:41,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:54:41,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:41,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:54:41,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1324189860] [2020-10-27 22:54:41,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:54:41,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 22:54:41,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350648627] [2020-10-27 22:54:41,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 22:54:41,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:54:41,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 22:54:41,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-27 22:54:41,811 INFO L87 Difference]: Start difference. First operand 29792 states and 47642 transitions. Second operand 12 states.