/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 17:53:15,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 17:53:15,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 17:53:15,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 17:53:15,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 17:53:15,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 17:53:15,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 17:53:15,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 17:53:15,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 17:53:15,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 17:53:15,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 17:53:15,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 17:53:15,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 17:53:15,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 17:53:15,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 17:53:15,377 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 17:53:15,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 17:53:15,379 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 17:53:15,381 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 17:53:15,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 17:53:15,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 17:53:15,391 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 17:53:15,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 17:53:15,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 17:53:15,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 17:53:15,425 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 17:53:15,430 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 17:53:15,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 17:53:15,432 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 17:53:15,433 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 17:53:15,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 17:53:15,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 17:53:15,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 17:53:15,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 17:53:15,444 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 17:53:15,444 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 17:53:15,445 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 17:53:15,445 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 17:53:15,446 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 17:53:15,446 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 17:53:15,454 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 17:53:15,457 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 [2020-10-28 17:53:15,487 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 17:53:15,487 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 17:53:15,489 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 17:53:15,489 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 17:53:15,489 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 17:53:15,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 17:53:15,490 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 17:53:15,490 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 17:53:15,490 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 17:53:15,490 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 17:53:15,490 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 17:53:15,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 17:53:15,491 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 17:53:15,491 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 17:53:15,491 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 17:53:15,491 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 17:53:15,492 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 17:53:15,492 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 17:53:15,492 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 17:53:15,492 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 17:53:15,492 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 17:53:15,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 17:53:15,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 17:53:15,493 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 17:53:15,493 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 17:53:15,494 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 17:53:15,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 17:53:15,494 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 17:53:15,494 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 17:53:15,494 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 17:53:15,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 17:53:15,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 17:53:15,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 17:53:15,970 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 17:53:15,971 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 17:53:15,973 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c [2020-10-28 17:53:16,065 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/01766efac/f9b2f0a100994b8583efd9118be80adf/FLAG8841674bb [2020-10-28 17:53:16,799 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 17:53:16,800 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c [2020-10-28 17:53:16,816 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/01766efac/f9b2f0a100994b8583efd9118be80adf/FLAG8841674bb [2020-10-28 17:53:17,047 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/01766efac/f9b2f0a100994b8583efd9118be80adf [2020-10-28 17:53:17,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 17:53:17,057 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 17:53:17,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 17:53:17,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 17:53:17,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 17:53:17,067 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:53:17" (1/1) ... [2020-10-28 17:53:17,071 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d49cfae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:53:17, skipping insertion in model container [2020-10-28 17:53:17,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:53:17" (1/1) ... [2020-10-28 17:53:17,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 17:53:17,146 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 17:53:17,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 17:53:17,435 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 17:53:17,553 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 17:53:17,577 INFO L208 MainTranslator]: Completed translation [2020-10-28 17:53:17,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:53:17 WrapperNode [2020-10-28 17:53:17,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 17:53:17,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 17:53:17,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 17:53:17,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 17:53:17,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:53:17" (1/1) ... [2020-10-28 17:53:17,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:53:17" (1/1) ... [2020-10-28 17:53:17,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:53:17" (1/1) ... [2020-10-28 17:53:17,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:53:17" (1/1) ... [2020-10-28 17:53:17,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:53:17" (1/1) ... [2020-10-28 17:53:17,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:53:17" (1/1) ... [2020-10-28 17:53:17,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:53:17" (1/1) ... [2020-10-28 17:53:17,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 17:53:17,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 17:53:17,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 17:53:17,694 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 17:53:17,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:53:17" (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 [2020-10-28 17:53:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 17:53:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 17:53:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 17:53:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 17:53:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-28 17:53:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-28 17:53:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-28 17:53:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-28 17:53:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-28 17:53:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-28 17:53:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-28 17:53:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 17:53:17,781 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-28 17:53:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 17:53:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 17:53:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 17:53:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 17:53:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-28 17:53:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-28 17:53:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-28 17:53:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-28 17:53:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 17:53:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-28 17:53:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-28 17:53:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-28 17:53:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-28 17:53:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-28 17:53:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-28 17:53:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-28 17:53:17,784 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-28 17:53:17,784 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-28 17:53:17,784 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 17:53:17,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 17:53:17,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 17:53:17,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 17:53:17,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 17:53:17,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 17:53:17,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 17:53:18,767 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 17:53:18,768 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 17:53:18,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:53:18 BoogieIcfgContainer [2020-10-28 17:53:18,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 17:53:18,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 17:53:18,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 17:53:18,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 17:53:18,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 05:53:17" (1/3) ... [2020-10-28 17:53:18,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c11e853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:53:18, skipping insertion in model container [2020-10-28 17:53:18,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:53:17" (2/3) ... [2020-10-28 17:53:18,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c11e853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:53:18, skipping insertion in model container [2020-10-28 17:53:18,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:53:18" (3/3) ... [2020-10-28 17:53:18,781 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c [2020-10-28 17:53:18,796 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 17:53:18,801 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 17:53:18,816 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 17:53:18,849 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 17:53:18,849 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 17:53:18,849 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 17:53:18,849 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 17:53:18,849 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 17:53:18,850 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 17:53:18,850 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 17:53:18,850 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 17:53:18,875 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states. [2020-10-28 17:53:18,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-28 17:53:18,887 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:53:18,888 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:53:18,889 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:53:18,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:53:18,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1493845296, now seen corresponding path program 1 times [2020-10-28 17:53:18,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:53:18,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1101271555] [2020-10-28 17:53:18,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:53:19,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:19,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:19,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:19,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-28 17:53:19,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:19,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 416 [2020-10-28 17:53:19,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:19,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:19,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:53:19,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-28 17:53:19,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:53:19,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 17:53:20,031 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-28 17:53:20,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:53:20,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:20,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:20,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:20,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:53:20,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:20,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 17:53:20,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:20,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:20,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:53:20,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:53:20,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:53:20,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:53:20,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:53:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:20,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:20,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:20,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:53:20,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:20,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:53:20,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:20,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:20,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:53:20,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:53:20,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:53:20,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:53:20,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 17:53:20,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:20,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:20,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:20,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:53:20,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:20,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:53:20,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:20,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:20,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:53:20,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 17:53:20,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:53:20,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 17:53:20,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 17:53:20,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:20,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:20,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:20,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:53:20,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:20,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:53:20,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:20,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:20,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:53:20,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-28 17:53:20,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:53:20,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 17:53:20,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 17:53:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:20,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:20,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:20,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:53:20,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:20,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 17:53:20,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:20,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:20,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:53:20,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:53:20,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:53:20,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 17:53:20,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 17:53:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:20,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:20,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:20,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:53:20,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:20,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:53:20,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:20,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:20,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:53:20,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:53:20,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:53:20,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:53:20,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-28 17:53:20,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:20,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:20,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:20,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:53:20,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:20,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:53:20,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:20,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:20,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:53:20,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:53:20,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:53:20,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:53:20,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-28 17:53:20,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:20,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:20,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:20,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:53:20,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:20,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:53:20,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:20,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:20,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:53:20,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:53:20,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:53:20,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:53:20,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 17:53:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:20,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:20,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:20,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:53:20,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:20,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:53:20,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:20,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:20,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:53:20,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:53:20,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:53:20,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:53:20,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:53:20,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1101271555] [2020-10-28 17:53:20,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:53:20,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 17:53:20,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410740327] [2020-10-28 17:53:20,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 17:53:20,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:53:20,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 17:53:20,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-28 17:53:20,429 INFO L87 Difference]: Start difference. First operand 164 states. Second operand 8 states. [2020-10-28 17:53:22,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:53:22,032 INFO L93 Difference]: Finished difference Result 279 states and 417 transitions. [2020-10-28 17:53:22,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 17:53:22,034 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 69 [2020-10-28 17:53:22,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:53:22,046 INFO L225 Difference]: With dead ends: 279 [2020-10-28 17:53:22,046 INFO L226 Difference]: Without dead ends: 162 [2020-10-28 17:53:22,050 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-28 17:53:22,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-28 17:53:22,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 156. [2020-10-28 17:53:22,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-10-28 17:53:22,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 237 transitions. [2020-10-28 17:53:22,115 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 237 transitions. Word has length 69 [2020-10-28 17:53:22,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:53:22,115 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 237 transitions. [2020-10-28 17:53:22,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 17:53:22,116 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 237 transitions. [2020-10-28 17:53:22,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-28 17:53:22,120 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:53:22,120 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:53:22,120 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 17:53:22,120 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:53:22,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:53:22,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1925102994, now seen corresponding path program 1 times [2020-10-28 17:53:22,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:53:22,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [182567368] [2020-10-28 17:53:22,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:53:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:22,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:22,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:22,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-28 17:53:22,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:22,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 758 [2020-10-28 17:53:22,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:22,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:22,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:53:22,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-28 17:53:22,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:53:22,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:23,275 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-28 17:53:23,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:53:23,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:23,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:23,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:23,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:53:23,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:23,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 17:53:23,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:23,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:23,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:53:23,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:53:23,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:53:23,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:53:23,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:53:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:23,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:23,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:23,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:53:23,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:23,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:53:23,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:23,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:23,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:53:23,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:53:23,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:53:23,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:23,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 17:53:23,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:23,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:23,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:23,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:53:23,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:23,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:53:23,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:23,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:23,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:53:23,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:53:23,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:53:23,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:23,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 17:53:23,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:23,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:23,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:23,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:53:23,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:23,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:53:23,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:23,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:23,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:53:23,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-28 17:53:23,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:53:23,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:23,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 17:53:23,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:23,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:23,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:23,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:53:23,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:23,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:53:23,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:23,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:23,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:53:23,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:53:23,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:53:23,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:53:23,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 17:53:23,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:23,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:23,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:23,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:53:23,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:23,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:53:23,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:23,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:23,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:53:23,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:53:23,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:53:23,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:23,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-28 17:53:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:23,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:23,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:23,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:53:23,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:23,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:53:23,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:23,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:23,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:53:23,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:53:23,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:53:23,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:23,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-28 17:53:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:23,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:23,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:23,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:53:23,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:23,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:53:23,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:23,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:23,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:53:23,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:53:23,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:53:23,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:23,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 17:53:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:23,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:23,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:23,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:53:23,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:23,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:53:23,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:23,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:23,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:53:23,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:53:23,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:53:23,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:53:23,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:53:23,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [182567368] [2020-10-28 17:53:23,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:53:23,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-28 17:53:23,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340489663] [2020-10-28 17:53:23,630 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-28 17:53:23,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:53:23,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-28 17:53:23,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-28 17:53:23,631 INFO L87 Difference]: Start difference. First operand 156 states and 237 transitions. Second operand 14 states. [2020-10-28 17:53:24,014 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-28 17:53:24,317 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-28 17:53:24,699 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-28 17:53:25,002 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-28 17:53:27,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:53:27,128 INFO L93 Difference]: Finished difference Result 274 states and 405 transitions. [2020-10-28 17:53:27,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 17:53:27,129 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 69 [2020-10-28 17:53:27,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:53:27,133 INFO L225 Difference]: With dead ends: 274 [2020-10-28 17:53:27,133 INFO L226 Difference]: Without dead ends: 162 [2020-10-28 17:53:27,135 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-28 17:53:27,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-28 17:53:27,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 156. [2020-10-28 17:53:27,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-10-28 17:53:27,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 205 transitions. [2020-10-28 17:53:27,176 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 205 transitions. Word has length 69 [2020-10-28 17:53:27,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:53:27,176 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 205 transitions. [2020-10-28 17:53:27,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-28 17:53:27,176 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 205 transitions. [2020-10-28 17:53:27,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-28 17:53:27,180 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:53:27,181 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:53:27,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 17:53:27,181 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:53:27,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:53:27,182 INFO L82 PathProgramCache]: Analyzing trace with hash -771558967, now seen corresponding path program 1 times [2020-10-28 17:53:27,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:53:27,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1069686536] [2020-10-28 17:53:27,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:53:27,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:27,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:27,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:27,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:27,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:30,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:32,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:32,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-28 17:53:32,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 17:53:32,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-28 17:53:32,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:32,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:32,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:53:32,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-28 17:53:32,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-28 17:53:32,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:53:32,545 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-28 17:53:32,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:53:32,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:32,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:32,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:32,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:53:32,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:32,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 17:53:32,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:32,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:32,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:53:32,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:53:32,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:53:32,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:32,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:53:32,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:32,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:32,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:32,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:53:32,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:32,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 17:53:32,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:32,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:32,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:53:32,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:53:32,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-28 17:53:32,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 17:53:32,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 17:53:32,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:32,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:32,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:32,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:53:32,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:32,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:53:32,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:32,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:32,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:53:32,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:53:32,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:53:32,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:32,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-28 17:53:32,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:32,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:32,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:32,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:53:32,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:32,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 17:53:32,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:32,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:32,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:53:32,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:53:32,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 17:53:32,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:32,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-28 17:53:32,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:32,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:32,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:32,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:53:32,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:32,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:53:32,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:32,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:32,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:53:32,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:53:32,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:53:32,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:53:32,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 17:53:32,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:32,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:32,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:32,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:53:32,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:32,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 17:53:32,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:32,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:32,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:53:32,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:53:32,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:53:32,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:32,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-28 17:53:32,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:32,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:32,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:32,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:53:32,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:32,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:53:32,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:32,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:32,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:53:32,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:53:32,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:53:32,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:32,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-28 17:53:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:32,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:32,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:32,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:53:32,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:32,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 17:53:32,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:32,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:32,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:53:32,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:53:32,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:53:32,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 17:53:32,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-28 17:53:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:32,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:32,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:32,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:53:32,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:32,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:53:32,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:32,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:32,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:53:32,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:53:32,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:53:32,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:32,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:53:32,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1069686536] [2020-10-28 17:53:32,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:53:32,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-28 17:53:32,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265154948] [2020-10-28 17:53:32,992 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 17:53:32,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:53:32,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 17:53:32,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-28 17:53:32,993 INFO L87 Difference]: Start difference. First operand 156 states and 205 transitions. Second operand 11 states. [2020-10-28 17:53:33,346 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-28 17:53:35,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:53:35,996 INFO L93 Difference]: Finished difference Result 367 states and 508 transitions. [2020-10-28 17:53:35,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-28 17:53:35,998 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 100 [2020-10-28 17:53:35,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:53:36,008 INFO L225 Difference]: With dead ends: 367 [2020-10-28 17:53:36,009 INFO L226 Difference]: Without dead ends: 261 [2020-10-28 17:53:36,012 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-28 17:53:36,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2020-10-28 17:53:36,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 247. [2020-10-28 17:53:36,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-10-28 17:53:36,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 338 transitions. [2020-10-28 17:53:36,081 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 338 transitions. Word has length 100 [2020-10-28 17:53:36,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:53:36,083 INFO L481 AbstractCegarLoop]: Abstraction has 247 states and 338 transitions. [2020-10-28 17:53:36,084 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 17:53:36,084 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 338 transitions. [2020-10-28 17:53:36,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-28 17:53:36,096 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:53:36,096 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:53:36,097 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 17:53:36,097 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:53:36,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:53:36,097 INFO L82 PathProgramCache]: Analyzing trace with hash 505142832, now seen corresponding path program 1 times [2020-10-28 17:53:36,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:53:36,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [669435611] [2020-10-28 17:53:36,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:53:36,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:36,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:36,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:36,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:36,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:41,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:41,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-28 17:53:41,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 17:53:41,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-28 17:53:41,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:41,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:41,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:53:41,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-28 17:53:41,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:53:41,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:53:41,504 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-28 17:53:41,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:53:41,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:41,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:41,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:41,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:53:41,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:41,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:53:41,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:41,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:41,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:53:41,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:53:41,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:53:41,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:41,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:53:41,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:41,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:41,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:41,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:53:41,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:41,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 17:53:41,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:41,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:41,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:53:41,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:53:41,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 17:53:41,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:41,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 17:53:41,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:41,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:41,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:41,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:53:41,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:41,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:53:41,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:41,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:41,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:53:41,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:53:41,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:53:41,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:41,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-28 17:53:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:41,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:41,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:41,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:53:41,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:41,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:53:41,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:41,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:41,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:53:41,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:53:41,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 17:53:41,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:41,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-28 17:53:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:41,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:41,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:41,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:53:41,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:41,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:53:41,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:41,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:41,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:53:41,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:53:41,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:53:41,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:41,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 17:53:41,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:41,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:41,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:41,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:53:41,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:41,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:53:41,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:41,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:41,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:53:41,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:53:41,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:53:41,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:41,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-28 17:53:41,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:41,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:41,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:41,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:53:41,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:41,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:53:41,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:41,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:41,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:53:41,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:53:41,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:53:41,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:41,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-28 17:53:41,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:41,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:41,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:41,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:53:41,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:41,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:53:41,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:41,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:41,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:53:41,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-28 17:53:41,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:53:41,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 17:53:41,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-28 17:53:41,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:41,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:41,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:41,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:53:41,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:41,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:53:41,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:41,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:41,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:53:41,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:53:41,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:53:41,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:41,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:53:41,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [669435611] [2020-10-28 17:53:41,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:53:41,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-28 17:53:41,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780821020] [2020-10-28 17:53:41,851 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 17:53:41,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:53:41,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 17:53:41,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-28 17:53:41,853 INFO L87 Difference]: Start difference. First operand 247 states and 338 transitions. Second operand 11 states. [2020-10-28 17:53:42,177 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-28 17:53:44,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:53:44,981 INFO L93 Difference]: Finished difference Result 637 states and 898 transitions. [2020-10-28 17:53:44,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-28 17:53:44,982 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 101 [2020-10-28 17:53:44,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:53:44,986 INFO L225 Difference]: With dead ends: 637 [2020-10-28 17:53:44,986 INFO L226 Difference]: Without dead ends: 440 [2020-10-28 17:53:44,989 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-28 17:53:44,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2020-10-28 17:53:45,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 417. [2020-10-28 17:53:45,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-10-28 17:53:45,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 584 transitions. [2020-10-28 17:53:45,040 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 584 transitions. Word has length 101 [2020-10-28 17:53:45,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:53:45,041 INFO L481 AbstractCegarLoop]: Abstraction has 417 states and 584 transitions. [2020-10-28 17:53:45,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 17:53:45,041 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 584 transitions. [2020-10-28 17:53:45,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-28 17:53:45,043 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:53:45,043 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:53:45,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 17:53:45,044 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:53:45,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:53:45,044 INFO L82 PathProgramCache]: Analyzing trace with hash 658858695, now seen corresponding path program 1 times [2020-10-28 17:53:45,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:53:45,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1374887404] [2020-10-28 17:53:45,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:53:45,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:45,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:45,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:45,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:48,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:48,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-28 17:53:48,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 17:53:48,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3480 [2020-10-28 17:53:48,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:48,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:48,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:53:48,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-28 17:53:48,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-28 17:53:48,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:48,890 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-28 17:53:48,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:53:48,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:48,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:48,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:48,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:53:48,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:48,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:53:48,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:48,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:48,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:53:48,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:53:48,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:53:48,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:48,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:53:48,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:48,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:48,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:48,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:53:48,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:48,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 17:53:48,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:48,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:48,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:53:48,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:53:48,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 17:53:48,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:48,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 17:53:48,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:48,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:48,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:48,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:53:48,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:48,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:53:48,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:48,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:48,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:53:48,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:53:48,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:53:48,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:48,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-28 17:53:48,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:48,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:48,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:48,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:53:48,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:48,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:53:48,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:48,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:48,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:53:48,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:53:48,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 17:53:48,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:49,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-28 17:53:49,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:49,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:49,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:49,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:53:49,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:49,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:53:49,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:49,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:49,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:53:49,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:53:49,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:53:49,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:49,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 17:53:49,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:49,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:49,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:49,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:53:49,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:49,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 17:53:49,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:49,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:49,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:53:49,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:53:49,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:53:49,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:49,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-28 17:53:49,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:49,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:49,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:49,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:53:49,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:49,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:53:49,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:49,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:49,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:53:49,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-28 17:53:49,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:53:49,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:49,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-28 17:53:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:49,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:49,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:49,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:53:49,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:49,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:53:49,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:49,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:49,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:53:49,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-28 17:53:49,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:53:49,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:49,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-28 17:53:49,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:49,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:49,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:49,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:53:49,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:49,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:53:49,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:49,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:49,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:53:49,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:53:49,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:53:49,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:49,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:53:49,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1374887404] [2020-10-28 17:53:49,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:53:49,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-28 17:53:49,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136581323] [2020-10-28 17:53:49,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 17:53:49,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:53:49,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 17:53:49,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-28 17:53:49,211 INFO L87 Difference]: Start difference. First operand 417 states and 584 transitions. Second operand 11 states. [2020-10-28 17:53:49,499 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-28 17:53:52,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:53:52,129 INFO L93 Difference]: Finished difference Result 1139 states and 1616 transitions. [2020-10-28 17:53:52,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-28 17:53:52,130 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 102 [2020-10-28 17:53:52,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:53:52,136 INFO L225 Difference]: With dead ends: 1139 [2020-10-28 17:53:52,136 INFO L226 Difference]: Without dead ends: 772 [2020-10-28 17:53:52,139 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-28 17:53:52,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2020-10-28 17:53:52,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 733. [2020-10-28 17:53:52,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2020-10-28 17:53:52,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1036 transitions. [2020-10-28 17:53:52,213 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1036 transitions. Word has length 102 [2020-10-28 17:53:52,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:53:52,214 INFO L481 AbstractCegarLoop]: Abstraction has 733 states and 1036 transitions. [2020-10-28 17:53:52,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 17:53:52,214 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1036 transitions. [2020-10-28 17:53:52,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-28 17:53:52,215 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:53:52,216 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:53:52,216 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 17:53:52,216 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:53:52,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:53:52,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1750626152, now seen corresponding path program 1 times [2020-10-28 17:53:52,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:53:52,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1040433853] [2020-10-28 17:53:52,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:53:52,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:52,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:52,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:54,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:54,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 17:53:54,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:53:54,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1878 [2020-10-28 17:53:54,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:54,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:54,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:53:54,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-28 17:53:54,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-28 17:53:54,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:53:54,429 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-28 17:53:54,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:53:54,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:54,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:54,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:54,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:53:54,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:54,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:53:54,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:54,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:54,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:53:54,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:53:54,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:53:54,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:54,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:53:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:54,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:54,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:54,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:53:54,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:54,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:53:54,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:54,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:54,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:53:54,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:53:54,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 17:53:54,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:54,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 17:53:54,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:54,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:54,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:54,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:53:54,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:54,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:53:54,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:54,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:54,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:53:54,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:53:54,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:53:54,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:54,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-28 17:53:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:54,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:54,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:54,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:53:54,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:54,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:53:54,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:54,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:54,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:53:54,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:53:54,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 17:53:54,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:54,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-28 17:53:54,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:54,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:54,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:54,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:53:54,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:54,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:53:54,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:54,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:54,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:53:54,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:53:54,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:53:54,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:54,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 17:53:54,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:54,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:54,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:54,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:53:54,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:54,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:53:54,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:54,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:54,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:53:54,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-28 17:53:54,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:53:54,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:53:54,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-28 17:53:54,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:54,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:54,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:54,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:53:54,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:54,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:53:54,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:54,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:54,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:53:54,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-28 17:53:54,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:53:54,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:54,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-28 17:53:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:54,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:54,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:54,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:53:54,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:54,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:53:54,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:54,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:54,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:53:54,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-28 17:53:54,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:53:54,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:54,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-28 17:53:54,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:54,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:54,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:53:54,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:53:54,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:53:54,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:53:54,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:53:54,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:53:54,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:53:54,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:53:54,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:53:54,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:53:54,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:53:54,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1040433853] [2020-10-28 17:53:54,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:53:54,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-28 17:53:54,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776905577] [2020-10-28 17:53:54,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 17:53:54,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:53:54,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 17:53:54,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-28 17:53:54,750 INFO L87 Difference]: Start difference. First operand 733 states and 1036 transitions. Second operand 11 states. [2020-10-28 17:53:55,060 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-28 17:53:55,888 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-28 17:53:58,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:53:58,148 INFO L93 Difference]: Finished difference Result 2067 states and 2928 transitions. [2020-10-28 17:53:58,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-28 17:53:58,149 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2020-10-28 17:53:58,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:53:58,159 INFO L225 Difference]: With dead ends: 2067 [2020-10-28 17:53:58,159 INFO L226 Difference]: Without dead ends: 1384 [2020-10-28 17:53:58,163 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-28 17:53:58,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2020-10-28 17:53:58,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1317. [2020-10-28 17:53:58,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1317 states. [2020-10-28 17:53:58,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1317 states to 1317 states and 1860 transitions. [2020-10-28 17:53:58,292 INFO L78 Accepts]: Start accepts. Automaton has 1317 states and 1860 transitions. Word has length 103 [2020-10-28 17:53:58,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:53:58,293 INFO L481 AbstractCegarLoop]: Abstraction has 1317 states and 1860 transitions. [2020-10-28 17:53:58,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 17:53:58,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1317 states and 1860 transitions. [2020-10-28 17:53:58,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-28 17:53:58,294 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:53:58,295 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:53:58,295 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 17:53:58,295 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:53:58,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:53:58,296 INFO L82 PathProgramCache]: Analyzing trace with hash -708239357, now seen corresponding path program 1 times [2020-10-28 17:53:58,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:53:58,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1481836917] [2020-10-28 17:53:58,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:53:58,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:53:58,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:53:58,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:54:02,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:54:02,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-28 17:54:02,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:54:02,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4043 [2020-10-28 17:54:02,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:54:02,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:54:02,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:54:02,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-28 17:54:02,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-28 17:54:02,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:54:02,781 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-28 17:54:02,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:54:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:54:02,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:54:02,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:54:02,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:54:02,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:54:02,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:54:02,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:54:02,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:54:02,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:54:02,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:54:02,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:54:02,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:54:02,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:54:02,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:54:02,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:54:02,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:54:02,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:54:02,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:54:02,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 17:54:02,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:54:02,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:54:02,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:54:02,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:54:02,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 17:54:02,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:54:02,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 17:54:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:54:02,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:54:02,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:54:02,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:54:02,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:54:02,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:54:02,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:54:02,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:54:02,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:54:02,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:54:02,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:54:02,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:54:03,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-28 17:54:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:54:03,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:54:03,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:54:03,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:54:03,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:54:03,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 17:54:03,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:54:03,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:54:03,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:54:03,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:54:03,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 17:54:03,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:54:03,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-28 17:54:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:54:03,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:54:03,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:54:03,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:54:03,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:54:03,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 17:54:03,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:54:03,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:54:03,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:54:03,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:54:03,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 17:54:03,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:54:03,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-28 17:54:03,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:54:03,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:54:03,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:54:03,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:54:03,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:54:03,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:54:03,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:54:03,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:54:03,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:54:03,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:54:03,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 17:54:03,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:54:03,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-28 17:54:03,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:54:03,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:54:03,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:54:03,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:54:03,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:54:03,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 17:54:03,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:54:03,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:54:03,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:54:03,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:54:03,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 17:54:03,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:54:03,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-28 17:54:03,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:54:03,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:54:03,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:54:03,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:54:03,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:54:03,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:54:03,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:54:03,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:54:03,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:54:03,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-28 17:54:03,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:54:03,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:54:03,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-28 17:54:03,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:54:03,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:54:03,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:54:03,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:54:03,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:54:03,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:54:03,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:54:03,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:54:03,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:54:03,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:54:03,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:54:03,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:54:03,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:54:03,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1481836917] [2020-10-28 17:54:03,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:54:03,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-28 17:54:03,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147242928] [2020-10-28 17:54:03,526 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-28 17:54:03,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:54:03,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-28 17:54:03,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2020-10-28 17:54:03,527 INFO L87 Difference]: Start difference. First operand 1317 states and 1860 transitions. Second operand 18 states. [2020-10-28 17:54:03,936 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-28 17:54:04,313 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-28 17:54:05,275 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-28 17:54:06,067 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-28 17:54:06,394 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-28 17:54:06,704 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-28 17:54:07,866 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-28 17:54:08,207 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-28 17:54:08,545 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-28 17:54:08,889 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-28 17:54:09,214 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-28 17:54:09,548 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-28 17:54:09,871 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-28 17:54:10,569 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-28 17:54:11,838 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-28 17:54:12,198 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-28 17:54:12,519 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-28 17:54:12,914 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-28 17:54:13,232 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-28 17:54:13,568 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-28 17:54:13,877 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-28 17:54:14,241 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-28 17:54:14,561 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-28 17:54:14,888 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-28 17:54:15,195 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-28 17:54:15,842 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-28 17:54:16,155 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-28 17:54:16,746 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-28 17:54:17,051 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-28 17:54:20,277 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-28 17:54:20,606 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-28 17:54:20,968 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-28 17:54:21,299 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-28 17:54:21,656 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-28 17:54:22,008 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-28 17:54:22,366 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-28 17:54:22,714 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-28 17:54:23,077 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-28 17:54:23,424 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-28 17:54:23,781 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-28 17:54:24,158 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-28 17:54:24,501 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-28 17:54:24,851 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-28 17:54:24,983 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-28 17:54:25,362 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-28 17:54:25,702 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-28 17:54:26,062 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-28 17:54:26,403 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-28 17:54:26,760 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-28 17:54:27,121 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-28 17:54:27,404 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-28 17:54:27,759 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-28 17:54:28,093 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-28 17:54:28,437 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-28 17:54:28,764 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-28 17:54:29,103 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-28 17:54:29,464 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-28 17:54:30,027 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-28 17:54:30,315 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-28 17:54:30,666 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-28 17:54:30,993 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-28 17:54:32,090 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-28 17:54:32,399 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-28 17:54:41,867 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-28 17:54:42,204 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-28 17:54:45,277 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-28 17:54:49,031 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-28 17:54:49,786 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-28 17:54:50,442 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-28 17:54:50,605 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-28 17:54:50,952 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-28 17:54:51,103 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-28 17:54:51,781 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-28 17:54:55,986 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-28 17:54:56,304 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-28 17:54:57,911 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-28 17:54:58,235 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-28 17:54:58,400 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-28 17:55:03,150 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-28 17:55:03,322 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-28 17:55:03,494 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-28 17:55:03,710 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-28 17:55:04,051 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-28 17:55:04,228 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-28 17:55:04,767 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-28 17:55:04,929 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-28 17:55:05,121 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-28 17:55:05,454 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-28 17:55:05,604 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-28 17:55:08,311 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-10-28 17:55:15,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:55:15,283 INFO L93 Difference]: Finished difference Result 36929 states and 54191 transitions. [2020-10-28 17:55:15,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 303 states. [2020-10-28 17:55:15,284 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 104 [2020-10-28 17:55:15,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:55:15,530 INFO L225 Difference]: With dead ends: 36929 [2020-10-28 17:55:15,530 INFO L226 Difference]: Without dead ends: 35662 [2020-10-28 17:55:15,601 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 311 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42599 ImplicationChecksByTransitivity, 45.0s TimeCoverageRelationStatistics Valid=8249, Invalid=89407, Unknown=0, NotChecked=0, Total=97656 [2020-10-28 17:55:15,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35662 states. [2020-10-28 17:55:18,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35662 to 34341. [2020-10-28 17:55:18,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34341 states. [2020-10-28 17:55:19,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34341 states to 34341 states and 46722 transitions. [2020-10-28 17:55:19,176 INFO L78 Accepts]: Start accepts. Automaton has 34341 states and 46722 transitions. Word has length 104 [2020-10-28 17:55:19,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:55:19,178 INFO L481 AbstractCegarLoop]: Abstraction has 34341 states and 46722 transitions. [2020-10-28 17:55:19,178 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-28 17:55:19,178 INFO L276 IsEmpty]: Start isEmpty. Operand 34341 states and 46722 transitions. [2020-10-28 17:55:19,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-28 17:55:19,182 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:55:19,182 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:55:19,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 17:55:19,183 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:55:19,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:55:19,184 INFO L82 PathProgramCache]: Analyzing trace with hash 644954119, now seen corresponding path program 1 times [2020-10-28 17:55:19,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:55:19,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1579885922] [2020-10-28 17:55:19,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:55:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:55:19,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:55:19,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:55:20,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:55:20,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-28 17:55:20,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:55:20,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1311 [2020-10-28 17:55:20,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:55:20,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:55:20,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:55:20,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-28 17:55:20,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:55:20,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:55:20,915 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-28 17:55:20,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:55:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:55:20,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:55:20,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:55:20,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:55:20,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:55:20,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:55:20,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:55:20,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:55:20,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:55:20,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:55:20,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:55:20,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 17:55:20,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:55:20,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:55:20,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:55:20,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:55:20,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:55:20,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:55:20,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 17:55:20,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:55:20,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:55:20,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:55:20,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:55:20,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:55:20,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:55:20,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 17:55:21,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:55:21,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:55:21,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:55:21,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:55:21,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:55:21,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:55:21,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:55:21,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:55:21,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:55:21,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:55:21,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:55:21,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:55:21,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-28 17:55:21,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:55:21,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:55:21,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:55:21,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 17:55:21,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:55:21,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:55:21,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:55:21,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:55:21,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:55:21,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:55:21,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:55:21,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:55:21,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-28 17:55:21,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:55:21,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:55:21,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:55:21,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:55:21,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:55:21,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:55:21,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:55:21,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:55:21,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:55:21,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-28 17:55:21,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:55:21,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:55:21,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-28 17:55:21,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:55:21,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:55:21,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:55:21,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:55:21,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:55:21,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:55:21,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:55:21,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:55:21,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:55:21,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-28 17:55:21,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:55:21,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:55:21,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-28 17:55:21,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:55:21,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:55:21,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:55:21,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:55:21,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:55:21,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:55:21,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:55:21,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:55:21,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:55:21,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-28 17:55:21,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:55:21,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:55:21,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-28 17:55:21,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:55:21,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:55:21,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:55:21,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:55:21,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:55:21,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:55:21,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:55:21,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:55:21,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:55:21,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-28 17:55:21,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:55:21,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:55:21,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-28 17:55:21,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:55:21,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:55:21,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:55:21,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:55:21,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:55:21,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:55:21,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:55:21,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:55:21,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:55:21,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:55:21,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:55:21,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:55:21,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:55:21,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1579885922] [2020-10-28 17:55:21,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:55:21,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-28 17:55:21,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642086453] [2020-10-28 17:55:21,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 17:55:21,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:55:21,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 17:55:21,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-28 17:55:21,338 INFO L87 Difference]: Start difference. First operand 34341 states and 46722 transitions. Second operand 11 states. [2020-10-28 17:55:21,704 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-28 17:55:22,238 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2020-10-28 17:55:23,791 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-28 17:55:23,944 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-10-28 17:55:29,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:55:29,840 INFO L93 Difference]: Finished difference Result 99109 states and 134884 transitions. [2020-10-28 17:55:29,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 17:55:29,845 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 105 [2020-10-28 17:55:29,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:55:30,181 INFO L225 Difference]: With dead ends: 99109 [2020-10-28 17:55:30,181 INFO L226 Difference]: Without dead ends: 64830 [2020-10-28 17:55:30,311 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=164, Invalid=436, Unknown=0, NotChecked=0, Total=600 [2020-10-28 17:55:30,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64830 states. [2020-10-28 17:55:35,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64830 to 63117. [2020-10-28 17:55:35,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63117 states. [2020-10-28 17:55:35,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63117 states to 63117 states and 85284 transitions. [2020-10-28 17:55:35,696 INFO L78 Accepts]: Start accepts. Automaton has 63117 states and 85284 transitions. Word has length 105 [2020-10-28 17:55:35,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:55:35,697 INFO L481 AbstractCegarLoop]: Abstraction has 63117 states and 85284 transitions. [2020-10-28 17:55:35,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 17:55:35,697 INFO L276 IsEmpty]: Start isEmpty. Operand 63117 states and 85284 transitions. [2020-10-28 17:55:35,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-28 17:55:35,700 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:55:35,701 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:55:35,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 17:55:35,701 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:55:35,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:55:35,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1105552137, now seen corresponding path program 1 times [2020-10-28 17:55:35,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:55:35,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [566713492] [2020-10-28 17:55:35,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:55:35,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:55:35,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:55:36,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:55:36,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-28 17:55:36,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:55:36,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 781 [2020-10-28 17:55:36,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:55:36,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:55:36,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-28 17:55:36,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 17:55:36,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-28 17:55:36,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:55:36,859 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-28 17:55:36,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:55:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:55:36,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:55:36,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:55:36,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:55:36,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:55:36,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:55:36,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:55:36,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:55:36,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:55:36,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:55:36,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:55:36,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:55:36,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:55:36,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:55:36,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:55:36,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:55:36,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:55:36,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:55:36,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-28 17:55:36,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:55:36,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:55:36,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:55:36,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:55:36,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-28 17:55:36,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:55:37,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 17:55:37,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:55:37,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:55:37,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:55:37,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:55:37,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:55:37,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:55:37,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:55:37,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:55:37,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:55:37,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:55:37,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:55:37,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:55:37,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-28 17:55:37,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:55:37,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:55:37,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:55:37,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 17:55:37,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:55:37,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 17:55:37,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:55:37,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:55:37,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:55:37,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:55:37,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:55:37,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:55:37,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-28 17:55:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:55:37,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:55:37,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:55:37,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:55:37,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:55:37,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:55:37,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:55:37,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:55:37,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:55:37,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:55:37,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 17:55:37,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:55:37,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-28 17:55:37,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:55:37,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:55:37,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:55:37,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:55:37,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:55:37,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:55:37,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:55:37,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:55:37,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:55:37,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:55:37,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 17:55:37,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:55:37,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-28 17:55:37,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:55:37,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:55:37,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:55:37,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:55:37,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:55:37,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 17:55:37,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:55:37,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:55:37,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:55:37,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:55:37,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 17:55:37,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 17:55:37,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-28 17:55:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:55:37,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:55:37,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:55:37,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:55:37,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:55:37,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:55:37,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:55:37,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:55:37,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:55:37,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:55:37,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 17:55:37,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:55:37,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-28 17:55:37,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:55:37,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:55:37,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:55:37,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:55:37,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:55:37,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:55:37,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:55:37,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:55:37,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:55:37,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 17:55:37,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:55:37,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:55:37,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:55:37,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [566713492] [2020-10-28 17:55:37,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:55:37,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-28 17:55:37,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905966717] [2020-10-28 17:55:37,662 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-28 17:55:37,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:55:37,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-28 17:55:37,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2020-10-28 17:55:37,663 INFO L87 Difference]: Start difference. First operand 63117 states and 85284 transitions. Second operand 19 states. [2020-10-28 17:55:38,249 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-28 17:55:38,593 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-28 17:55:38,922 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-28 17:55:39,268 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-28 17:55:39,619 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-28 17:55:40,973 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-10-28 17:55:45,304 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-10-28 17:55:45,505 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-10-28 17:55:48,146 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-28 17:55:48,493 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-28 17:55:48,824 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-28 17:55:49,184 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-28 17:55:49,504 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-28 17:56:05,187 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-28 17:56:13,653 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-28 17:56:13,844 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-28 17:56:15,000 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2020-10-28 17:56:15,807 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 79