/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 23:11:43,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 23:11:43,168 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 23:11:43,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 23:11:43,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 23:11:43,207 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 23:11:43,209 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 23:11:43,211 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 23:11:43,214 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 23:11:43,215 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 23:11:43,216 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 23:11:43,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 23:11:43,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 23:11:43,220 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 23:11:43,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 23:11:43,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 23:11:43,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 23:11:43,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 23:11:43,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 23:11:43,229 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 23:11:43,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 23:11:43,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 23:11:43,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 23:11:43,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 23:11:43,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 23:11:43,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 23:11:43,246 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 23:11:43,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 23:11:43,247 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 23:11:43,249 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 23:11:43,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 23:11:43,250 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 23:11:43,251 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 23:11:43,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 23:11:43,253 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 23:11:43,282 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 23:11:43,283 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 23:11:43,283 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 23:11:43,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 23:11:43,289 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 23:11:43,298 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 23:11:43,301 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 23:11:43,369 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 23:11:43,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 23:11:43,373 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 23:11:43,373 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 23:11:43,375 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 23:11:43,375 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 23:11:43,375 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 23:11:43,376 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 23:11:43,376 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 23:11:43,376 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 23:11:43,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 23:11:43,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 23:11:43,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 23:11:43,378 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 23:11:43,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 23:11:43,378 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 23:11:43,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 23:11:43,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 23:11:43,379 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 23:11:43,379 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 23:11:43,379 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 23:11:43,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 23:11:43,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 23:11:43,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 23:11:43,380 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 23:11:43,380 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 23:11:43,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 23:11:43,380 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 23:11:43,381 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 23:11:43,381 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 23:11:43,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 23:11:43,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 23:11:43,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 23:11:43,811 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 23:11:43,812 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 23:11:43,813 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c [2020-10-27 23:11:43,897 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cacb4fad1/0ed8fc2973bb4e0ead5f0256c2aeec88/FLAG533043828 [2020-10-27 23:11:44,693 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 23:11:44,694 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c [2020-10-27 23:11:44,710 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cacb4fad1/0ed8fc2973bb4e0ead5f0256c2aeec88/FLAG533043828 [2020-10-27 23:11:44,956 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cacb4fad1/0ed8fc2973bb4e0ead5f0256c2aeec88 [2020-10-27 23:11:44,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 23:11:44,966 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 23:11:44,971 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 23:11:44,971 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 23:11:44,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 23:11:44,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:11:44" (1/1) ... [2020-10-27 23:11:44,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1076618c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:11:44, skipping insertion in model container [2020-10-27 23:11:44,984 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:11:44" (1/1) ... [2020-10-27 23:11:45,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 23:11:45,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 23:11:45,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:11:45,479 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 23:11:45,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:11:45,653 INFO L208 MainTranslator]: Completed translation [2020-10-27 23:11:45,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:11:45 WrapperNode [2020-10-27 23:11:45,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 23:11:45,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 23:11:45,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 23:11:45,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 23:11:45,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:11:45" (1/1) ... [2020-10-27 23:11:45,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:11:45" (1/1) ... [2020-10-27 23:11:45,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:11:45" (1/1) ... [2020-10-27 23:11:45,686 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:11:45" (1/1) ... [2020-10-27 23:11:45,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:11:45" (1/1) ... [2020-10-27 23:11:45,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:11:45" (1/1) ... [2020-10-27 23:11:45,755 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:11:45" (1/1) ... [2020-10-27 23:11:45,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 23:11:45,769 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 23:11:45,769 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 23:11:45,769 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 23:11:45,776 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:11:45" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 23:11:45,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 23:11:45,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 23:11:45,869 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 23:11:45,869 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 23:11:45,869 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-27 23:11:45,869 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-27 23:11:45,869 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-27 23:11:45,870 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-27 23:11:45,870 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 23:11:45,870 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 23:11:45,870 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 23:11:45,870 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 23:11:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 23:11:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 23:11:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 23:11:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 23:11:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 23:11:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-27 23:11:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 23:11:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 23:11:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 23:11:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 23:11:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 23:11:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-27 23:11:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-27 23:11:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-27 23:11:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-27 23:11:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 23:11:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 23:11:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 23:11:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 23:11:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 23:11:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 23:11:45,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 23:11:45,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 23:11:45,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 23:11:47,327 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 23:11:47,327 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 23:11:47,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:11:47 BoogieIcfgContainer [2020-10-27 23:11:47,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 23:11:47,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 23:11:47,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 23:11:47,336 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 23:11:47,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 11:11:44" (1/3) ... [2020-10-27 23:11:47,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a11b63d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:11:47, skipping insertion in model container [2020-10-27 23:11:47,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:11:45" (2/3) ... [2020-10-27 23:11:47,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a11b63d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:11:47, skipping insertion in model container [2020-10-27 23:11:47,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:11:47" (3/3) ... [2020-10-27 23:11:47,339 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c [2020-10-27 23:11:47,352 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 23:11:47,357 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 23:11:47,378 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 23:11:47,431 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 23:11:47,431 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 23:11:47,431 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 23:11:47,431 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 23:11:47,432 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 23:11:47,432 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 23:11:47,432 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 23:11:47,433 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 23:11:47,462 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states. [2020-10-27 23:11:47,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-27 23:11:47,480 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:11:47,481 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:11:47,482 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:11:47,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:11:47,488 INFO L82 PathProgramCache]: Analyzing trace with hash 2135324040, now seen corresponding path program 1 times [2020-10-27 23:11:47,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:11:47,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1335384784] [2020-10-27 23:11:47,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:11:47,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:48,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:48,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:48,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-27 23:11:48,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:48,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 816 [2020-10-27 23:11:48,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:48,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:48,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-27 23:11:48,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:48,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 23:11:49,424 WARN L193 SmtUtils]: Spent 508.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:11:49,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:11:49,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:49,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:49,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:49,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:11:49,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:49,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-27 23:11:49,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:49,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:49,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:49,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:49,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:49,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:11:49,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:49,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:49,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:49,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-27 23:11:49,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:49,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-27 23:11:49,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:49,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:49,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:49,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:49,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:11:49,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:11:49,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:49,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:49,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:49,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:11:49,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:49,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:11:49,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:49,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:49,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:11:49,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:49,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 23:11:49,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 23:11:49,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:49,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:49,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:49,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:49,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:49,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 23:11:49,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:49,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:49,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:11:49,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:49,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:49,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:11:49,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:49,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:49,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:49,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:49,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:49,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:11:49,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:49,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:49,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:11:49,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:49,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:49,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 23:11:49,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:49,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:49,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:49,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:49,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:49,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:11:49,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:49,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:49,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:11:49,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:49,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:49,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-27 23:11:49,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:49,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:49,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:49,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:49,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:49,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:11:49,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:49,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:49,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:11:49,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:49,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:49,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-27 23:11:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:50,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:50,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:50,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:11:50,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:50,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:11:50,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:50,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:50,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:11:50,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:50,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:50,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:11:50,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1335384784] [2020-10-27 23:11:50,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:11:50,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 23:11:50,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435829106] [2020-10-27 23:11:50,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 23:11:50,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:11:50,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 23:11:50,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-27 23:11:50,070 INFO L87 Difference]: Start difference. First operand 369 states. Second operand 7 states. [2020-10-27 23:11:51,144 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:51,601 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:52,159 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:52,690 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:53,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:11:53,316 INFO L93 Difference]: Finished difference Result 565 states and 949 transitions. [2020-10-27 23:11:53,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 23:11:53,320 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 109 [2020-10-27 23:11:53,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:11:53,354 INFO L225 Difference]: With dead ends: 565 [2020-10-27 23:11:53,354 INFO L226 Difference]: Without dead ends: 401 [2020-10-27 23:11:53,365 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:11:53,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-10-27 23:11:53,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 361. [2020-10-27 23:11:53,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-10-27 23:11:53,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 620 transitions. [2020-10-27 23:11:53,514 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 620 transitions. Word has length 109 [2020-10-27 23:11:53,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:11:53,515 INFO L481 AbstractCegarLoop]: Abstraction has 361 states and 620 transitions. [2020-10-27 23:11:53,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 23:11:53,515 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 620 transitions. [2020-10-27 23:11:53,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-27 23:11:53,521 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:11:53,521 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:11:53,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 23:11:53,522 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:11:53,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:11:53,523 INFO L82 PathProgramCache]: Analyzing trace with hash -231370554, now seen corresponding path program 1 times [2020-10-27 23:11:53,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:11:53,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1424231011] [2020-10-27 23:11:53,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:11:53,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:53,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:55,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:55,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-27 23:11:55,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:55,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1673 [2020-10-27 23:11:55,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:55,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:11:55,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-27 23:11:55,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 23:11:55,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:11:55,974 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:11:55,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:11:55,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:55,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:56,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:56,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:11:56,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:56,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-27 23:11:56,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:56,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:56,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:56,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:56,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:11:56,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:11:56,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:56,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:56,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:56,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-27 23:11:56,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:56,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-10-27 23:11:56,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:56,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:11:56,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:56,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-27 23:11:56,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 23:11:56,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:11:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:56,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:56,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:56,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:11:56,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:56,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:11:56,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:56,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:11:56,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 23:11:56,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:11:56,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:56,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 23:11:56,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:56,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:56,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:56,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:56,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:56,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:11:56,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:56,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:56,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:11:56,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:56,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:56,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:11:56,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:56,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:56,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:56,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:56,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:56,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:11:56,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:56,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:56,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:11:56,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:56,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:56,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 23:11:56,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:56,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:56,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:56,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:56,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:56,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:11:56,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:56,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:56,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:11:56,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:56,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:56,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-27 23:11:56,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:56,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:56,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:56,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:56,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:56,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:11:56,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:56,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:56,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:11:56,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:56,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:56,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-27 23:11:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:56,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:56,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:56,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:11:56,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:56,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:11:56,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:56,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:56,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:11:56,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:56,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:56,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:11:56,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1424231011] [2020-10-27 23:11:56,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:11:56,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 23:11:56,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057133052] [2020-10-27 23:11:56,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 23:11:56,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:11:56,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 23:11:56,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-27 23:11:56,907 INFO L87 Difference]: Start difference. First operand 361 states and 620 transitions. Second operand 13 states. [2020-10-27 23:12:00,019 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:12:00,696 WARN L193 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-27 23:12:01,471 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:12:02,127 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 289 [2020-10-27 23:12:03,120 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:03,882 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:04,695 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:05,391 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:06,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:12:06,443 INFO L93 Difference]: Finished difference Result 560 states and 937 transitions. [2020-10-27 23:12:06,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 23:12:06,444 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 109 [2020-10-27 23:12:06,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:12:06,450 INFO L225 Difference]: With dead ends: 560 [2020-10-27 23:12:06,450 INFO L226 Difference]: Without dead ends: 401 [2020-10-27 23:12:06,452 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-27 23:12:06,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-10-27 23:12:06,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 361. [2020-10-27 23:12:06,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-10-27 23:12:06,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 574 transitions. [2020-10-27 23:12:06,538 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 574 transitions. Word has length 109 [2020-10-27 23:12:06,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:12:06,541 INFO L481 AbstractCegarLoop]: Abstraction has 361 states and 574 transitions. [2020-10-27 23:12:06,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 23:12:06,541 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 574 transitions. [2020-10-27 23:12:06,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-27 23:12:06,547 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:12:06,548 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] [2020-10-27 23:12:06,548 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 23:12:06,548 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:12:06,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:12:06,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1064128907, now seen corresponding path program 1 times [2020-10-27 23:12:06,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:12:06,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1854986497] [2020-10-27 23:12:06,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:12:06,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:06,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:06,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:07,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:07,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:08,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:11,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:11,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-27 23:12:11,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:12:11,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-27 23:12:11,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:11,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 23:12:11,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-27 23:12:11,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 23:12:11,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:12:12,264 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:12:12,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:12:12,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:12,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:12,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:12,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:12:12,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:12,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:12:12,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:12,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:12:12,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:12,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:12:12,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 23:12:12,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:12:12,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:12,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:12,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:12,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 23:12:12,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:12,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-10-27 23:12:12,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:12,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:12:12,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:12,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-27 23:12:12,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:12,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 23:12:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:12,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:12,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:12,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:12:12,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:12,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:12:12,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:12,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:12,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:12,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:12:12,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:12,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 23:12:12,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:12,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:12,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:12,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:12,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:12,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 23:12:12,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:12,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:12:12,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:12:12,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:12:12,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:12,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 23:12:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:12,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:12,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:12,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:12,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:12,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 23:12:12,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:12,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:12:12,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:12:12,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:12:12,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:13,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-27 23:12:13,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:13,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:13,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:13,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:13,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:13,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 23:12:13,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:13,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:12:13,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:12:13,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:12:13,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:13,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 23:12:13,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:13,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:13,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:13,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:13,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:13,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 23:12:13,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:13,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:12:13,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:12:13,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:12:13,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:13,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-27 23:12:13,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:13,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:13,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:13,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:12:13,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:13,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:12:13,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:13,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:13,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:12:13,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:12:13,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:13,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:12:13,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1854986497] [2020-10-27 23:12:13,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:12:13,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-27 23:12:13,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283848014] [2020-10-27 23:12:13,354 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-27 23:12:13,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:12:13,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-27 23:12:13,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2020-10-27 23:12:13,355 INFO L87 Difference]: Start difference. First operand 361 states and 574 transitions. Second operand 16 states. [2020-10-27 23:12:14,021 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-27 23:12:16,703 WARN L193 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-27 23:12:17,352 WARN L193 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:12:18,022 WARN L193 SmtUtils]: Spent 638.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 23:12:18,452 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:12:19,013 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:19,212 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:12:19,831 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:20,029 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:12:20,274 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:12:21,117 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:21,330 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 23:12:21,554 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-27 23:12:21,781 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:12:21,987 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:23,077 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:23,272 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:23,464 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:12:23,659 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:12:23,860 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:12:24,100 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:12:25,157 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:25,762 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:12:25,928 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:12:26,567 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-27 23:12:27,227 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 287 [2020-10-27 23:12:27,430 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:28,092 WARN L193 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 23:12:29,992 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-27 23:12:30,210 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:12:30,438 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:12:30,663 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 23:12:30,890 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 23:12:31,113 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:31,354 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:12:31,584 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:12:33,262 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:12:33,505 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:12:33,708 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:12:33,988 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-27 23:12:34,266 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:12:34,511 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:12:34,752 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 23:12:34,987 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:12:36,592 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-27 23:12:36,856 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-27 23:12:37,040 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:12:37,278 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:12:37,516 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-27 23:12:37,793 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:12:38,042 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-27 23:12:39,529 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:12:39,776 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:12:40,041 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-27 23:12:40,259 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 23:12:40,466 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:12:40,767 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 23:12:43,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:12:43,636 INFO L93 Difference]: Finished difference Result 2125 states and 3421 transitions. [2020-10-27 23:12:43,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2020-10-27 23:12:43,637 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 154 [2020-10-27 23:12:43,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:12:43,655 INFO L225 Difference]: With dead ends: 2125 [2020-10-27 23:12:43,655 INFO L226 Difference]: Without dead ends: 1972 [2020-10-27 23:12:43,663 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1999 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=1277, Invalid=4885, Unknown=0, NotChecked=0, Total=6162 [2020-10-27 23:12:43,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1972 states. [2020-10-27 23:12:43,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1972 to 1552. [2020-10-27 23:12:43,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1552 states. [2020-10-27 23:12:43,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 2490 transitions. [2020-10-27 23:12:43,819 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 2490 transitions. Word has length 154 [2020-10-27 23:12:43,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:12:43,820 INFO L481 AbstractCegarLoop]: Abstraction has 1552 states and 2490 transitions. [2020-10-27 23:12:43,820 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-27 23:12:43,820 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 2490 transitions. [2020-10-27 23:12:43,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-27 23:12:43,824 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:12:43,824 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] [2020-10-27 23:12:43,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 23:12:43,825 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:12:43,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:12:43,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1448546172, now seen corresponding path program 1 times [2020-10-27 23:12:43,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:12:43,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [302539368] [2020-10-27 23:12:43,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:12:43,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:43,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:44,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:44,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:45,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:46,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:48,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:48,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-27 23:12:48,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:12:48,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-27 23:12:48,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:48,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:12:48,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-27 23:12:48,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-27 23:12:48,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:49,567 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:12:49,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:12:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:49,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:49,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:49,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:12:49,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:49,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:12:49,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:49,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:12:49,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:49,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:12:49,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:49,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:12:49,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:49,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:49,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:49,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 23:12:49,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:49,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-27 23:12:49,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:49,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:12:49,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:49,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-27 23:12:49,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:49,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 23:12:49,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:49,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:49,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:49,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:12:49,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:49,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:12:49,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:49,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:49,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:49,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:12:49,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:49,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 23:12:49,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:49,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:49,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:49,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:49,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:49,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:12:49,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:49,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:12:49,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:12:49,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:12:49,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:49,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 23:12:49,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:49,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:49,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:49,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:49,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:49,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:12:49,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:49,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:49,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:49,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:12:49,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:50,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-27 23:12:50,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:50,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:50,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:50,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:50,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:50,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:12:50,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:50,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:50,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:50,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:12:50,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:50,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 23:12:50,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:50,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:50,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:50,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:50,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:50,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:12:50,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:50,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:50,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:50,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:12:50,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:50,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-27 23:12:50,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:50,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:50,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:50,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:50,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:50,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:12:50,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:50,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:50,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 23:12:50,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:12:50,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:50,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:12:50,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [302539368] [2020-10-27 23:12:50,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:12:50,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 23:12:50,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277903954] [2020-10-27 23:12:50,211 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 23:12:50,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:12:50,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 23:12:50,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:12:50,212 INFO L87 Difference]: Start difference. First operand 1552 states and 2490 transitions. Second operand 11 states. [2020-10-27 23:12:50,836 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:12:53,449 WARN L193 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-27 23:12:53,987 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 125 [2020-10-27 23:12:54,490 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:54,654 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:54,837 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:55,418 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:12:55,591 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:55,821 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:56,665 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:12:56,863 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:57,076 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:57,998 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:12:58,192 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:59,496 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-27 23:13:00,110 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:13:01,097 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:13:01,473 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 127 [2020-10-27 23:13:01,687 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-27 23:13:02,087 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 124 [2020-10-27 23:13:03,068 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:13:03,248 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:13:03,456 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:04,219 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:13:04,429 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:05,075 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:13:05,266 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:05,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:13:05,909 INFO L93 Difference]: Finished difference Result 6259 states and 10047 transitions. [2020-10-27 23:13:05,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-27 23:13:05,912 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 155 [2020-10-27 23:13:05,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:13:05,948 INFO L225 Difference]: With dead ends: 6259 [2020-10-27 23:13:05,948 INFO L226 Difference]: Without dead ends: 4915 [2020-10-27 23:13:05,954 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=335, Invalid=1147, Unknown=0, NotChecked=0, Total=1482 [2020-10-27 23:13:05,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4915 states. [2020-10-27 23:13:06,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4915 to 3894. [2020-10-27 23:13:06,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3894 states. [2020-10-27 23:13:06,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3894 states to 3894 states and 6240 transitions. [2020-10-27 23:13:06,296 INFO L78 Accepts]: Start accepts. Automaton has 3894 states and 6240 transitions. Word has length 155 [2020-10-27 23:13:06,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:13:06,297 INFO L481 AbstractCegarLoop]: Abstraction has 3894 states and 6240 transitions. [2020-10-27 23:13:06,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 23:13:06,297 INFO L276 IsEmpty]: Start isEmpty. Operand 3894 states and 6240 transitions. [2020-10-27 23:13:06,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-27 23:13:06,301 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:13:06,301 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] [2020-10-27 23:13:06,302 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 23:13:06,302 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:13:06,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:13:06,302 INFO L82 PathProgramCache]: Analyzing trace with hash 429829246, now seen corresponding path program 1 times [2020-10-27 23:13:06,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:13:06,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1010515329] [2020-10-27 23:13:06,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:13:06,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:06,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:06,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:06,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:07,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:08,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:11,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:11,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-27 23:13:11,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:13:11,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-27 23:13:11,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:11,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:13:11,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-27 23:13:11,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-27 23:13:11,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:12,050 WARN L193 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:13:12,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:13:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:12,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:12,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:12,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:13:12,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:12,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:13:12,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:12,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:13:12,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:12,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:13:12,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:12,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:13:12,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:12,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:12,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:12,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 23:13:12,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:12,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-27 23:13:12,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:12,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:13:12,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:12,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-27 23:13:12,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:12,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 23:13:12,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:12,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:12,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:12,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:13:12,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:12,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:13:12,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:12,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:12,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:12,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:13:12,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:12,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 23:13:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:12,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:12,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:12,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:13:12,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:12,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:13:12,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:12,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:12,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:12,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:13:12,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:12,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 23:13:12,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:12,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:12,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:12,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:13:12,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:12,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:13:12,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:12,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:13:12,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:13:12,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:13:12,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:12,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-27 23:13:12,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:12,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:12,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:12,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:13:12,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:12,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:13:12,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:12,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:12,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:12,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:13:12,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:12,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 23:13:12,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:12,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:12,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:12,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:13:12,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:12,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:13:12,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:12,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:12,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:12,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:13:12,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:12,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-27 23:13:12,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:12,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:12,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:12,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:13:12,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:12,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:13:12,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:12,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:12,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 23:13:12,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:13:12,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:12,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:13:12,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1010515329] [2020-10-27 23:13:12,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:13:12,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 23:13:12,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635891139] [2020-10-27 23:13:12,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 23:13:12,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:13:12,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 23:13:12,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:13:12,658 INFO L87 Difference]: Start difference. First operand 3894 states and 6240 transitions. Second operand 11 states. [2020-10-27 23:13:13,447 WARN L193 SmtUtils]: Spent 694.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 23:13:16,176 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-27 23:13:16,588 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:13:17,222 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-27 23:13:17,801 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:17,982 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:18,196 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:13:18,871 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:19,045 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:13:19,233 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:13:20,188 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:20,409 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:13:21,798 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:13:22,396 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-27 23:13:23,433 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:23,675 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:23,897 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:13:24,224 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:13:25,007 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:13:25,430 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:13:25,701 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 23:13:26,082 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:13:27,082 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:27,260 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:13:27,476 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:13:28,397 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:28,629 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:13:29,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:13:29,784 INFO L93 Difference]: Finished difference Result 18312 states and 29331 transitions. [2020-10-27 23:13:29,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-27 23:13:29,785 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 156 [2020-10-27 23:13:29,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:13:29,865 INFO L225 Difference]: With dead ends: 18312 [2020-10-27 23:13:29,865 INFO L226 Difference]: Without dead ends: 14626 [2020-10-27 23:13:29,879 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2020-10-27 23:13:29,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14626 states. [2020-10-27 23:13:30,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14626 to 11505. [2020-10-27 23:13:30,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11505 states. [2020-10-27 23:13:30,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11505 states to 11505 states and 18389 transitions. [2020-10-27 23:13:30,637 INFO L78 Accepts]: Start accepts. Automaton has 11505 states and 18389 transitions. Word has length 156 [2020-10-27 23:13:30,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:13:30,637 INFO L481 AbstractCegarLoop]: Abstraction has 11505 states and 18389 transitions. [2020-10-27 23:13:30,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 23:13:30,637 INFO L276 IsEmpty]: Start isEmpty. Operand 11505 states and 18389 transitions. [2020-10-27 23:13:30,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-27 23:13:30,642 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:13:30,642 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] [2020-10-27 23:13:30,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 23:13:30,643 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:13:30,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:13:30,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1607109861, now seen corresponding path program 1 times [2020-10-27 23:13:30,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:13:30,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1905379933] [2020-10-27 23:13:30,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:13:30,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:30,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:30,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:31,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:32,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:32,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:35,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:35,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-27 23:13:35,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:13:35,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-27 23:13:35,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:35,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:13:35,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-27 23:13:35,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-27 23:13:35,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:36,463 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:13:36,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:13:36,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:36,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:36,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:36,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:13:36,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:36,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:13:36,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:36,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:13:36,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:36,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:13:36,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:36,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:13:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:36,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:36,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:36,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 23:13:36,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:36,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-27 23:13:36,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:36,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:13:36,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:36,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 23:13:36,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:36,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 23:13:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:36,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:36,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:36,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:13:36,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:36,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:13:36,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:36,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:36,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:36,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:13:36,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:36,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 23:13:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:36,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:36,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:36,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:13:36,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:36,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:13:36,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:36,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:36,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:36,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:13:36,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:36,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 23:13:36,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:36,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:36,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:36,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:13:36,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:36,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:13:36,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:36,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:36,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:36,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:13:36,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:36,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-27 23:13:36,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:36,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:36,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:36,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:13:36,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:36,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:13:36,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:36,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:13:36,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:13:36,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:13:36,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:37,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 23:13:37,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:37,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:37,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:37,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:13:37,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:37,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:13:37,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:37,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:37,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:37,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:13:37,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:13:37,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-27 23:13:37,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:37,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:37,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:37,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 23:13:37,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:37,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:13:37,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:37,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:37,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 23:13:37,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:13:37,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:13:37,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:13:37,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1905379933] [2020-10-27 23:13:37,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:13:37,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 23:13:37,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280666836] [2020-10-27 23:13:37,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 23:13:37,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:13:37,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 23:13:37,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:13:37,178 INFO L87 Difference]: Start difference. First operand 11505 states and 18389 transitions. Second operand 11 states. [2020-10-27 23:13:37,989 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:13:40,580 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-27 23:13:40,949 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:41,455 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:42,046 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:13:42,571 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:42,755 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:13:43,113 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 124 [2020-10-27 23:13:44,049 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 23:13:45,211 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 287 DAG size of output: 284 [2020-10-27 23:13:45,554 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:13:45,883 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 122 [2020-10-27 23:13:47,884 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:13:48,473 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 122 [2020-10-27 23:13:49,151 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:13:50,006 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 122 [2020-10-27 23:13:50,754 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-27 23:13:51,554 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 128 [2020-10-27 23:13:52,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:13:52,820 INFO L93 Difference]: Finished difference Result 43160 states and 68888 transitions. [2020-10-27 23:13:52,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-27 23:13:52,822 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 157 [2020-10-27 23:13:52,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:13:52,991 INFO L225 Difference]: With dead ends: 43160 [2020-10-27 23:13:52,991 INFO L226 Difference]: Without dead ends: 31863 [2020-10-27 23:13:53,029 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=209, Invalid=661, Unknown=0, NotChecked=0, Total=870 [2020-10-27 23:13:53,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31863 states. [2020-10-27 23:13:54,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31863 to 24928. [2020-10-27 23:13:54,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24928 states. [2020-10-27 23:13:54,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24928 states to 24928 states and 39777 transitions. [2020-10-27 23:13:54,922 INFO L78 Accepts]: Start accepts. Automaton has 24928 states and 39777 transitions. Word has length 157 [2020-10-27 23:13:54,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:13:54,923 INFO L481 AbstractCegarLoop]: Abstraction has 24928 states and 39777 transitions. [2020-10-27 23:13:54,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 23:13:54,923 INFO L276 IsEmpty]: Start isEmpty. Operand 24928 states and 39777 transitions. [2020-10-27 23:13:54,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-27 23:13:54,928 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:13:54,929 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] [2020-10-27 23:13:54,929 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 23:13:54,929 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:13:54,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:13:54,930 INFO L82 PathProgramCache]: Analyzing trace with hash 2140837511, now seen corresponding path program 1 times [2020-10-27 23:13:54,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:13:54,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [227378424] [2020-10-27 23:13:54,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:13:55,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:55,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:55,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:55,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:55,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:58,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:00,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:00,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-27 23:14:00,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:14:00,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-10-27 23:14:00,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:00,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:14:00,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-27 23:14:00,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-27 23:14:00,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:00,664 WARN L193 SmtUtils]: Spent 535.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:14:00,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:14:00,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:00,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:00,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:00,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:14:00,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:00,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:14:00,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:00,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:14:00,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:14:00,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:14:00,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:00,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:14:00,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:00,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:00,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:00,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 23:14:00,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:00,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-27 23:14:00,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:00,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:14:00,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:14:00,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-27 23:14:00,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:00,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 23:14:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:00,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:00,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:00,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:14:00,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:00,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:14:00,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:00,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:14:00,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:14:00,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:14:00,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:00,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 23:14:00,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:00,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:00,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:00,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:14:00,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:00,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:14:00,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:00,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:14:00,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:14:00,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:14:00,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:00,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 23:14:00,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:00,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:00,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:00,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:14:00,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:00,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:14:00,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:00,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:14:00,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:14:00,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:14:00,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:01,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-27 23:14:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:01,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:01,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:01,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:14:01,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:01,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:14:01,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:01,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:14:01,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:14:01,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:14:01,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:01,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 23:14:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:01,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:01,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:01,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:14:01,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:01,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:14:01,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:01,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:14:01,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:14:01,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:14:01,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:01,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-27 23:14:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:01,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:01,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:01,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 23:14:01,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:01,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:14:01,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:01,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:14:01,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:14:01,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:14:01,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:01,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:14:01,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [227378424] [2020-10-27 23:14:01,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:14:01,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 23:14:01,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760530385] [2020-10-27 23:14:01,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 23:14:01,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:14:01,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 23:14:01,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:14:01,258 INFO L87 Difference]: Start difference. First operand 24928 states and 39777 transitions. Second operand 11 states. [2020-10-27 23:14:01,904 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:14:04,403 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-27 23:14:04,719 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:14:05,229 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:14:05,812 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:14:06,283 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:14:06,763 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:14:06,928 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:14:07,834 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:14:08,436 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-27 23:14:09,352 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:14:09,777 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:14:10,018 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:14:10,528 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:14:10,796 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:14:11,716 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:14:11,996 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:14:12,573 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:14:12,868 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:14:13,827 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:14:14,129 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:14:14,645 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:14:14,977 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-27 23:14:15,927 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-27 23:14:16,403 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 127 [2020-10-27 23:14:17,140 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 131 [2020-10-27 23:14:17,938 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:14:20,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:14:20,687 INFO L93 Difference]: Finished difference Result 161754 states and 258587 transitions. [2020-10-27 23:14:20,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-27 23:14:20,688 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 158 [2020-10-27 23:14:20,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:14:21,273 INFO L225 Difference]: With dead ends: 161754 [2020-10-27 23:14:21,273 INFO L226 Difference]: Without dead ends: 137034 [2020-10-27 23:14:21,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=336, Invalid=1146, Unknown=0, NotChecked=0, Total=1482 [2020-10-27 23:14:21,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137034 states. [2020-10-27 23:14:27,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137034 to 107442. [2020-10-27 23:14:27,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107442 states. [2020-10-27 23:14:27,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107442 states to 107442 states and 171496 transitions. [2020-10-27 23:14:27,868 INFO L78 Accepts]: Start accepts. Automaton has 107442 states and 171496 transitions. Word has length 158 [2020-10-27 23:14:27,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:14:27,868 INFO L481 AbstractCegarLoop]: Abstraction has 107442 states and 171496 transitions. [2020-10-27 23:14:27,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 23:14:27,869 INFO L276 IsEmpty]: Start isEmpty. Operand 107442 states and 171496 transitions. [2020-10-27 23:14:27,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-27 23:14:27,875 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:14:27,876 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] [2020-10-27 23:14:27,876 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 23:14:27,876 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:14:27,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:14:27,877 INFO L82 PathProgramCache]: Analyzing trace with hash -573127438, now seen corresponding path program 1 times [2020-10-27 23:14:27,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:14:27,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1966754081] [2020-10-27 23:14:27,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:14:28,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:28,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:28,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:28,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:28,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:28,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:29,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:29,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:30,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:33,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:33,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-27 23:14:33,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-27 23:14:33,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-27 23:14:33,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:33,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:14:33,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-10-27 23:14:33,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 23:14:33,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:33,904 WARN L193 SmtUtils]: Spent 644.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:14:33,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:14:33,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:33,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:33,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:33,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:14:33,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:33,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 23:14:33,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:33,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:14:33,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:14:33,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:14:33,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:33,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:14:33,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:33,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:33,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:33,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 23:14:33,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:33,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-27 23:14:33,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:33,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:14:33,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:14:33,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:14:33,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:34,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 23:14:34,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:34,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:34,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:34,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:14:34,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:34,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:14:34,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:34,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:14:34,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:14:34,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:14:34,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:34,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 23:14:34,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:34,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:34,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:34,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:14:34,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:34,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:14:34,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:34,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:14:34,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 23:14:34,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 23:14:34,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:34,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-27 23:14:34,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:34,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:34,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:34,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:14:34,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:34,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:14:34,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:34,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:14:34,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:14:34,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:14:34,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:34,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 23:14:34,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:34,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:34,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:34,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:14:34,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:34,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:14:34,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:34,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:14:34,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:14:34,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:14:34,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:34,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-27 23:14:34,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:34,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:34,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:34,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:14:34,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:34,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:14:34,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:34,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:14:34,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:14:34,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:14:34,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:34,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-27 23:14:34,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:34,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:34,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:34,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:14:34,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:34,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:14:34,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:34,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:14:34,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:14:34,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:14:34,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:34,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:14:34,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1966754081] [2020-10-27 23:14:34,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:14:34,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 23:14:34,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487830212] [2020-10-27 23:14:34,364 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 23:14:34,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:14:34,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 23:14:34,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-27 23:14:34,365 INFO L87 Difference]: Start difference. First operand 107442 states and 171496 transitions. Second operand 9 states. [2020-10-27 23:14:36,872 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:14:37,096 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 23:14:37,276 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:14:37,893 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:14:38,738 WARN L193 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 23:14:39,187 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:14:39,530 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:14:40,375 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:14:40,692 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:14:41,570 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:14:51,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:14:51,363 INFO L93 Difference]: Finished difference Result 362004 states and 583189 transitions. [2020-10-27 23:14:51,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 23:14:51,364 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-10-27 23:14:51,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:14:52,667 INFO L225 Difference]: With dead ends: 362004 [2020-10-27 23:14:52,667 INFO L226 Difference]: Without dead ends: 254770 [2020-10-27 23:14:53,185 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2020-10-27 23:14:53,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254770 states. [2020-10-27 23:15:03,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254770 to 202795. [2020-10-27 23:15:03,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202795 states. [2020-10-27 23:15:04,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202795 states to 202795 states and 323042 transitions. [2020-10-27 23:15:04,697 INFO L78 Accepts]: Start accepts. Automaton has 202795 states and 323042 transitions. Word has length 161 [2020-10-27 23:15:04,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:15:04,698 INFO L481 AbstractCegarLoop]: Abstraction has 202795 states and 323042 transitions. [2020-10-27 23:15:04,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 23:15:04,698 INFO L276 IsEmpty]: Start isEmpty. Operand 202795 states and 323042 transitions. [2020-10-27 23:15:04,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-27 23:15:04,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:15:04,706 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] [2020-10-27 23:15:04,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 23:15:04,706 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:15:04,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:15:04,707 INFO L82 PathProgramCache]: Analyzing trace with hash 320358900, now seen corresponding path program 1 times [2020-10-27 23:15:04,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:15:04,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [73086378] [2020-10-27 23:15:04,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:15:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:15:04,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:15:04,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:15:05,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:15:05,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:15:05,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:15:06,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:15:06,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking...