/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_STARTPALS_ActiveStandby.4_2.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 18:04:57,858 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 18:04:57,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 18:04:57,901 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 18:04:57,902 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 18:04:57,903 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 18:04:57,905 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 18:04:57,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 18:04:57,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 18:04:57,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 18:04:57,913 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 18:04:57,914 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 18:04:57,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 18:04:57,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 18:04:57,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 18:04:57,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 18:04:57,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 18:04:57,921 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 18:04:57,939 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 18:04:57,942 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 18:04:57,944 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 18:04:57,945 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 18:04:57,947 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 18:04:57,948 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 18:04:57,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 18:04:57,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 18:04:57,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 18:04:57,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 18:04:57,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 18:04:57,955 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 18:04:57,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 18:04:57,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 18:04:57,958 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 18:04:57,959 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 18:04:57,960 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 18:04:57,960 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 18:04:57,961 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 18:04:57,961 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 18:04:57,962 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 18:04:57,963 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 18:04:57,964 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 18:04:57,965 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 18:04:57,993 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 18:04:57,994 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 18:04:57,995 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 18:04:57,995 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 18:04:57,996 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 18:04:57,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 18:04:57,996 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 18:04:57,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 18:04:57,997 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 18:04:57,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 18:04:57,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 18:04:57,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 18:04:57,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 18:04:57,998 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 18:04:57,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 18:04:57,999 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 18:04:57,999 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 18:04:58,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 18:04:58,000 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 18:04:58,000 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 18:04:58,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 18:04:58,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 18:04:58,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 18:04:58,002 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 18:04:58,002 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 18:04:58,002 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 18:04:58,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 18:04:58,003 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 18:04:58,003 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 18:04:58,003 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 18:04:58,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 18:04:58,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 18:04:58,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 18:04:58,417 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 18:04:58,418 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 18:04:58,422 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_2.ufo.BOUNDED-10.pals.c [2020-10-28 18:04:58,510 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0d31840f6/de9e8d0f4e704a6ca1f98fa21f5dbf7e/FLAG52b94f399 [2020-10-28 18:04:59,159 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 18:04:59,160 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_2.ufo.BOUNDED-10.pals.c [2020-10-28 18:04:59,173 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0d31840f6/de9e8d0f4e704a6ca1f98fa21f5dbf7e/FLAG52b94f399 [2020-10-28 18:04:59,482 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0d31840f6/de9e8d0f4e704a6ca1f98fa21f5dbf7e [2020-10-28 18:04:59,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 18:04:59,497 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 18:04:59,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 18:04:59,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 18:04:59,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 18:04:59,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 06:04:59" (1/1) ... [2020-10-28 18:04:59,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aeb1f92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:04:59, skipping insertion in model container [2020-10-28 18:04:59,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 06:04:59" (1/1) ... [2020-10-28 18:04:59,517 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 18:04:59,558 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 18:04:59,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 18:04:59,882 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 18:04:59,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 18:04:59,988 INFO L208 MainTranslator]: Completed translation [2020-10-28 18:04:59,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:04:59 WrapperNode [2020-10-28 18:04:59,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 18:04:59,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 18:04:59,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 18:04:59,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 18:05:00,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:04:59" (1/1) ... [2020-10-28 18:05:00,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:04:59" (1/1) ... [2020-10-28 18:05:00,023 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:04:59" (1/1) ... [2020-10-28 18:05:00,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:04:59" (1/1) ... [2020-10-28 18:05:00,046 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:04:59" (1/1) ... [2020-10-28 18:05:00,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:04:59" (1/1) ... [2020-10-28 18:05:00,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:04:59" (1/1) ... [2020-10-28 18:05:00,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 18:05:00,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 18:05:00,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 18:05:00,089 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 18:05:00,091 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:04:59" (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 18:05:00,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 18:05:00,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 18:05:00,164 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 18:05:00,164 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 18:05:00,164 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side1_failed_history [2020-10-28 18:05:00,164 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2020-10-28 18:05:00,164 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side2_failed_history [2020-10-28 18:05:00,164 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2020-10-28 18:05:00,165 INFO L138 BoogieDeclarations]: Found implementation of procedure write_active_side_history [2020-10-28 18:05:00,165 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2020-10-28 18:05:00,165 INFO L138 BoogieDeclarations]: Found implementation of procedure write_manual_selection_history [2020-10-28 18:05:00,165 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2020-10-28 18:05:00,165 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-28 18:05:00,165 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2020-10-28 18:05:00,166 INFO L138 BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period [2020-10-28 18:05:00,166 INFO L138 BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period [2020-10-28 18:05:00,166 INFO L138 BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period [2020-10-28 18:05:00,166 INFO L138 BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period [2020-10-28 18:05:00,166 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-28 18:05:00,166 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 18:05:00,167 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-28 18:05:00,167 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 18:05:00,167 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 18:05:00,167 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 18:05:00,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 18:05:00,167 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-28 18:05:00,168 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-28 18:05:00,168 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-28 18:05:00,168 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-28 18:05:00,168 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-28 18:05:00,168 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 18:05:00,168 INFO L130 BoogieDeclarations]: Found specification of procedure write_side1_failed_history [2020-10-28 18:05:00,168 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2020-10-28 18:05:00,169 INFO L130 BoogieDeclarations]: Found specification of procedure write_side2_failed_history [2020-10-28 18:05:00,169 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2020-10-28 18:05:00,169 INFO L130 BoogieDeclarations]: Found specification of procedure write_active_side_history [2020-10-28 18:05:00,169 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2020-10-28 18:05:00,169 INFO L130 BoogieDeclarations]: Found specification of procedure write_manual_selection_history [2020-10-28 18:05:00,169 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2020-10-28 18:05:00,169 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-28 18:05:00,170 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2020-10-28 18:05:00,170 INFO L130 BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period [2020-10-28 18:05:00,170 INFO L130 BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period [2020-10-28 18:05:00,170 INFO L130 BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period [2020-10-28 18:05:00,170 INFO L130 BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period [2020-10-28 18:05:00,170 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-28 18:05:00,170 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 18:05:00,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 18:05:00,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 18:05:00,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 18:05:00,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 18:05:00,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 18:05:00,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 18:05:01,244 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 18:05:01,245 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 18:05:01,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 06:05:01 BoogieIcfgContainer [2020-10-28 18:05:01,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 18:05:01,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 18:05:01,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 18:05:01,254 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 18:05:01,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 06:04:59" (1/3) ... [2020-10-28 18:05:01,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@354a3429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 06:05:01, skipping insertion in model container [2020-10-28 18:05:01,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:04:59" (2/3) ... [2020-10-28 18:05:01,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@354a3429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 06:05:01, skipping insertion in model container [2020-10-28 18:05:01,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 06:05:01" (3/3) ... [2020-10-28 18:05:01,258 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.4_2.ufo.BOUNDED-10.pals.c [2020-10-28 18:05:01,272 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 18:05:01,278 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 18:05:01,292 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 18:05:01,324 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 18:05:01,325 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 18:05:01,325 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 18:05:01,325 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 18:05:01,325 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 18:05:01,325 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 18:05:01,326 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 18:05:01,326 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 18:05:01,353 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states. [2020-10-28 18:05:01,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-28 18:05:01,364 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:05:01,365 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] [2020-10-28 18:05:01,366 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:05:01,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:05:01,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1795990944, now seen corresponding path program 1 times [2020-10-28 18:05:01,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:05:01,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1520421994] [2020-10-28 18:05:01,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:05:01,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:01,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:01,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:02,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:02,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:02,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:02,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:02,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:02,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:04,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:04,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-28 18:05:04,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-28 18:05:04,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2949 [2020-10-28 18:05:04,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:04,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:04,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:04,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-28 18:05:04,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:04,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 18:05:04,936 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:05:04,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:05:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:04,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:04,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:04,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:04,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:04,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 18:05:04,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:04,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:04,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:04,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:04,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:04,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:04,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:05:04,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:04,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:04,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:04,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:04,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:04,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:04,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:04,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:04,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:04,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:04,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:04,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:04,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 18:05:04,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:04,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:04,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:04,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:04,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:04,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:04,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:04,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:04,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:04,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:04,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:04,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:05,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 18:05:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:05,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:05,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:05,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:05:05,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:05,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 18:05:05,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:05,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:05,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:05,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:05,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:05,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:05,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:05,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:05,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:05,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:05,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:05,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 18:05:05,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:05,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:05,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:05,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:05,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:05,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:05,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:05:05,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:05,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:05,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:05,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:05,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:05,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:05:05,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 18:05:05,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 18:05:05,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:05,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:05,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:05,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 18:05:05,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:05,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:05,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:05,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:05,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:05,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:05,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:05,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:05,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:05:05,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:05,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:05,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:05,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:05,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:05,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:05,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 18:05:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:05,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:05,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:05,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:05,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:05,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:05,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:05:05,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 18:05:05,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-28 18:05:05,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:05,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:05,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:05,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-28 18:05:05,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:05,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:05,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:05,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:05,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:05,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:05,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:05,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:05:05,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:05,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:05,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:05,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:05,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:05,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:05,346 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 18:05:05,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1520421994] [2020-10-28 18:05:05,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:05:05,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 18:05:05,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136889494] [2020-10-28 18:05:05,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 18:05:05,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:05:05,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 18:05:05,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-28 18:05:05,379 INFO L87 Difference]: Start difference. First operand 247 states. Second operand 9 states. [2020-10-28 18:05:07,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:05:07,532 INFO L93 Difference]: Finished difference Result 468 states and 717 transitions. [2020-10-28 18:05:07,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 18:05:07,535 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 72 [2020-10-28 18:05:07,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:05:07,549 INFO L225 Difference]: With dead ends: 468 [2020-10-28 18:05:07,549 INFO L226 Difference]: Without dead ends: 239 [2020-10-28 18:05:07,557 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2020-10-28 18:05:07,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-10-28 18:05:07,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2020-10-28 18:05:07,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-10-28 18:05:07,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 344 transitions. [2020-10-28 18:05:07,672 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 344 transitions. Word has length 72 [2020-10-28 18:05:07,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:05:07,674 INFO L481 AbstractCegarLoop]: Abstraction has 239 states and 344 transitions. [2020-10-28 18:05:07,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 18:05:07,674 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 344 transitions. [2020-10-28 18:05:07,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-28 18:05:07,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:05:07,678 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] [2020-10-28 18:05:07,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 18:05:07,679 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:05:07,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:05:07,680 INFO L82 PathProgramCache]: Analyzing trace with hash 2043304544, now seen corresponding path program 1 times [2020-10-28 18:05:07,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:05:07,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1661361512] [2020-10-28 18:05:07,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:05:07,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:07,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:07,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:09,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:09,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-28 18:05:09,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 18:05:09,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2029 [2020-10-28 18:05:09,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:09,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:09,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:05:09,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-28 18:05:09,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 18:05:09,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:10,151 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:05:10,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:05:10,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:10,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:10,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:10,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:10,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:10,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 18:05:10,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:10,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:10,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:10,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:10,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:10,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:10,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:05:10,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:10,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:10,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:10,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:10,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:10,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:10,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:10,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:10,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:10,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:10,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:10,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:10,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 18:05:10,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:10,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:10,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:10,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:10,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:10,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:05:10,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:10,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:10,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:10,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:10,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:10,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:10,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 18:05:10,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:10,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:10,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:10,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:05:10,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:10,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 18:05:10,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:10,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:10,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:10,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:10,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:10,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:10,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:10,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:10,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:10,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:10,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:10,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:10,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:05:10,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:10,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:10,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:10,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:10,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:10,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:10,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:05:10,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:10,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:10,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:10,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:05:10,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:10,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 18:05:10,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:10,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:10,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:10,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:10,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:10,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:10,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:10,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:10,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:10,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:10,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:10,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:10,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:05:10,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:10,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:10,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:10,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:10,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:10,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:10,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 18:05:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:10,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:10,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:10,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:05:10,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:10,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 18:05:10,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:10,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:10,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:10,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:10,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:10,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:10,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:10,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:10,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:10,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:10,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:10,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:10,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:10,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:10,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:10,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:10,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:10,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 18:05:10,511 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 18:05:10,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1661361512] [2020-10-28 18:05:10,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:05:10,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-28 18:05:10,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89013504] [2020-10-28 18:05:10,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 18:05:10,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:05:10,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 18:05:10,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-28 18:05:10,522 INFO L87 Difference]: Start difference. First operand 239 states and 344 transitions. Second operand 11 states. [2020-10-28 18:05:12,015 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-28 18:05:12,295 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-28 18:05:12,459 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-28 18:05:14,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:05:14,032 INFO L93 Difference]: Finished difference Result 458 states and 661 transitions. [2020-10-28 18:05:14,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 18:05:14,033 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 72 [2020-10-28 18:05:14,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:05:14,039 INFO L225 Difference]: With dead ends: 458 [2020-10-28 18:05:14,039 INFO L226 Difference]: Without dead ends: 243 [2020-10-28 18:05:14,043 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2020-10-28 18:05:14,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-10-28 18:05:14,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2020-10-28 18:05:14,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-10-28 18:05:14,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 347 transitions. [2020-10-28 18:05:14,112 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 347 transitions. Word has length 72 [2020-10-28 18:05:14,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:05:14,113 INFO L481 AbstractCegarLoop]: Abstraction has 243 states and 347 transitions. [2020-10-28 18:05:14,113 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 18:05:14,113 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 347 transitions. [2020-10-28 18:05:14,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-28 18:05:14,117 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:05:14,118 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:05:14,118 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 18:05:14,118 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:05:14,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:05:14,119 INFO L82 PathProgramCache]: Analyzing trace with hash -1574047097, now seen corresponding path program 1 times [2020-10-28 18:05:14,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:05:14,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [90126735] [2020-10-28 18:05:14,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:05:14,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:14,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:14,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:14,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:17,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:19,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:19,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-28 18:05:19,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 18:05:19,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-28 18:05:19,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:19,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:19,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:05:19,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-28 18:05:19,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-28 18:05:19,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:19,476 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:05:19,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:05:19,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:19,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:19,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:19,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:19,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:19,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 18:05:19,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:19,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:19,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:19,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:19,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:19,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 18:05:19,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:05:19,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:19,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:19,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:19,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:19,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:19,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:19,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:19,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:19,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:19,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:19,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:19,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:19,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 18:05:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:19,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:19,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:19,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:19,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:19,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:19,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:19,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:19,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:19,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:19,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:19,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:19,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 18:05:19,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:19,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:19,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:19,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:05:19,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:19,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:05:19,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:19,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:19,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:19,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:19,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:19,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:19,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:19,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:19,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:19,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:19,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:19,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:19,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:19,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:19,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:19,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:19,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:19,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:19,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:05:19,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:19,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:19,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:19,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:05:19,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:19,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 18:05:19,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:19,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:19,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:05:19,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:19,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 18:05:19,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:19,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:19,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:19,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:19,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:19,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:19,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:19,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:19,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:19,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:19,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:19,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:19,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:19,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:19,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 18:05:19,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:19,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:19,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:19,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:05:19,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:19,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 18:05:19,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:19,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:19,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:05:19,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:19,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 18:05:19,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:19,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:19,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:19,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:19,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:19,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:19,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:19,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:05:19,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:19,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:19,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:19,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:19,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:19,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:19,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-28 18:05:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:19,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:19,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:19,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 18:05:19,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:19,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 18:05:19,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:19,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:19,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:05:19,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:19,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 18:05:19,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:19,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:19,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:19,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:19,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:19,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:19,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:19,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:19,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:19,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:19,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:19,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:19,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:19,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:19,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 18:05:19,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:19,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:19,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:19,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:19,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:19,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:05:19,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:19,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:19,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:19,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:19,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:19,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:19,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-28 18:05:19,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:19,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:19,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:19,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:19,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:19,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:05:19,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:19,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:19,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:19,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 18:05:19,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:19,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:19,934 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 18:05:19,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [90126735] [2020-10-28 18:05:19,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:05:19,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-28 18:05:19,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953085803] [2020-10-28 18:05:19,936 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 18:05:19,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:05:19,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 18:05:19,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-28 18:05:19,938 INFO L87 Difference]: Start difference. First operand 243 states and 347 transitions. Second operand 12 states. [2020-10-28 18:05:21,190 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-28 18:05:22,042 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 18:05:23,883 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-28 18:05:24,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:05:24,838 INFO L93 Difference]: Finished difference Result 655 states and 933 transitions. [2020-10-28 18:05:24,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 18:05:24,839 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 94 [2020-10-28 18:05:24,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:05:24,847 INFO L225 Difference]: With dead ends: 655 [2020-10-28 18:05:24,847 INFO L226 Difference]: Without dead ends: 436 [2020-10-28 18:05:24,849 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2020-10-28 18:05:24,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2020-10-28 18:05:24,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 417. [2020-10-28 18:05:24,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-10-28 18:05:24,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 599 transitions. [2020-10-28 18:05:24,946 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 599 transitions. Word has length 94 [2020-10-28 18:05:24,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:05:24,946 INFO L481 AbstractCegarLoop]: Abstraction has 417 states and 599 transitions. [2020-10-28 18:05:24,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-28 18:05:24,946 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 599 transitions. [2020-10-28 18:05:24,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-28 18:05:24,949 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:05:24,950 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:05:24,950 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 18:05:24,950 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:05:24,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:05:24,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1844149745, now seen corresponding path program 1 times [2020-10-28 18:05:24,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:05:24,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [976486725] [2020-10-28 18:05:24,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:05:24,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:25,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:25,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:25,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:27,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:29,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:29,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-28 18:05:29,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 18:05:29,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-28 18:05:29,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:29,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:29,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:05:29,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-28 18:05:29,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 18:05:29,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:30,281 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:05:30,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:05:30,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:30,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:30,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:30,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:30,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:30,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 18:05:30,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:30,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:30,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:30,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:30,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:30,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:30,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:05:30,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:30,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:30,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:30,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:30,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:30,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:30,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:30,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:30,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:30,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:30,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:30,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:30,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 18:05:30,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:30,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:30,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:30,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:30,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:30,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:30,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:30,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:30,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:30,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:30,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:30,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:30,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 18:05:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:30,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:30,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:30,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:05:30,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:30,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 18:05:30,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:30,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:30,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:30,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:30,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:30,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:30,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:30,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:30,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:30,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:30,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:30,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:30,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:30,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:30,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:30,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:30,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:30,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:30,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:30,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:05:30,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:30,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:30,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:30,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:05:30,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:30,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 18:05:30,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:30,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:30,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:30,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:30,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:30,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:30,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:30,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:30,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:30,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:30,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:30,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:30,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:05:30,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:30,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:30,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:30,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:30,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:30,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:30,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 18:05:30,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:30,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:30,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:30,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:05:30,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:30,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 18:05:30,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:30,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:30,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:05:30,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:30,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 18:05:30,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:30,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:30,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:30,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:30,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:30,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:30,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:30,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:30,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:30,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:30,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:30,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:30,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:30,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:30,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-28 18:05:30,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:30,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:30,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:30,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 18:05:30,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:30,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 18:05:30,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:30,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:30,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:05:30,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:30,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 18:05:30,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:30,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:30,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:30,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:30,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:30,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:30,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:30,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:30,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:30,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:30,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:30,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:30,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:30,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:30,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 18:05:30,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:30,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:30,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:30,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:30,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:30,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:30,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:30,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:30,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:30,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:30,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:30,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:30,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-28 18:05:30,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:30,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:30,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:30,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:30,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:30,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:30,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:30,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:30,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:30,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 18:05:30,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:30,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:30,691 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 18:05:30,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [976486725] [2020-10-28 18:05:30,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:05:30,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-28 18:05:30,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366292753] [2020-10-28 18:05:30,694 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 18:05:30,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:05:30,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 18:05:30,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-28 18:05:30,696 INFO L87 Difference]: Start difference. First operand 417 states and 599 transitions. Second operand 12 states. [2020-10-28 18:05:32,406 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-28 18:05:32,632 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 18:05:35,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:05:35,944 INFO L93 Difference]: Finished difference Result 1148 states and 1654 transitions. [2020-10-28 18:05:35,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 18:05:35,945 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 95 [2020-10-28 18:05:35,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:05:35,952 INFO L225 Difference]: With dead ends: 1148 [2020-10-28 18:05:35,953 INFO L226 Difference]: Without dead ends: 755 [2020-10-28 18:05:35,956 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2020-10-28 18:05:35,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2020-10-28 18:05:36,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 748. [2020-10-28 18:05:36,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 748 states. [2020-10-28 18:05:36,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1079 transitions. [2020-10-28 18:05:36,129 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1079 transitions. Word has length 95 [2020-10-28 18:05:36,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:05:36,132 INFO L481 AbstractCegarLoop]: Abstraction has 748 states and 1079 transitions. [2020-10-28 18:05:36,132 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-28 18:05:36,132 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1079 transitions. [2020-10-28 18:05:36,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-28 18:05:36,136 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:05:36,137 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:05:36,137 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 18:05:36,137 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:05:36,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:05:36,138 INFO L82 PathProgramCache]: Analyzing trace with hash -2015623840, now seen corresponding path program 1 times [2020-10-28 18:05:36,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:05:36,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1019137619] [2020-10-28 18:05:36,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:05:36,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:36,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:36,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:36,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:36,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:36,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:37,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:38,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:38,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:41,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:41,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 18:05:41,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-28 18:05:41,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-28 18:05:41,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:41,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:41,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:05:41,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-28 18:05:41,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-28 18:05:41,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:41,518 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:05:41,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:05:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:41,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:41,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:41,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:41,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:41,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 18:05:41,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:41,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:41,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:41,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:41,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:41,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:41,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:05:41,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:41,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:41,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:41,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:41,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:41,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:41,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:41,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:41,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:41,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:41,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:41,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:41,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 18:05:41,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:41,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:41,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:41,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:41,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:41,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:41,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:41,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:41,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:41,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:41,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:41,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:41,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 18:05:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:41,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:41,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:41,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:05:41,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:41,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 18:05:41,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:41,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:41,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:41,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:41,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:41,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:41,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:41,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:41,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:41,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:41,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:41,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:41,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:41,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:41,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:41,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:41,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:41,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:41,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:05:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:41,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:41,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:41,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:05:41,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:41,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:05:41,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:41,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:41,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:41,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:41,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:41,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:41,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:41,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:41,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:41,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:41,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:41,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:41,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:41,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:41,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:41,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:41,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:41,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:41,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:41,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 18:05:41,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:41,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:41,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:41,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 18:05:41,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:41,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 18:05:41,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:41,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:41,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:05:41,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:41,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 18:05:41,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:41,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:41,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:41,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:41,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:41,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:41,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:41,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:41,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:41,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:41,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:41,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:41,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:41,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 18:05:41,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:41,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:41,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:41,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 18:05:41,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:41,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 18:05:41,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:41,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:41,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:05:41,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:41,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 18:05:41,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:41,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:41,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:41,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:41,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:41,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:41,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:41,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:41,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:41,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:41,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:41,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:41,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:41,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:41,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 18:05:41,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:41,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:41,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:41,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:41,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:41,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:41,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:41,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:41,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:41,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:41,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:41,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:41,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-28 18:05:41,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:41,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:41,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:41,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:41,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:41,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:41,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:41,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:41,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:41,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 18:05:41,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:41,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:41,887 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 18:05:41,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1019137619] [2020-10-28 18:05:41,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:05:41,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-28 18:05:41,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844484324] [2020-10-28 18:05:41,888 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 18:05:41,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:05:41,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 18:05:41,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-28 18:05:41,889 INFO L87 Difference]: Start difference. First operand 748 states and 1079 transitions. Second operand 12 states. [2020-10-28 18:05:42,169 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-28 18:05:43,573 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-28 18:05:43,711 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-28 18:05:45,640 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-28 18:05:46,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:05:46,810 INFO L93 Difference]: Finished difference Result 1532 states and 2196 transitions. [2020-10-28 18:05:46,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 18:05:46,816 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 96 [2020-10-28 18:05:46,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:05:46,822 INFO L225 Difference]: With dead ends: 1532 [2020-10-28 18:05:46,823 INFO L226 Difference]: Without dead ends: 808 [2020-10-28 18:05:46,827 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2020-10-28 18:05:46,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2020-10-28 18:05:46,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 752. [2020-10-28 18:05:46,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 752 states. [2020-10-28 18:05:46,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1079 transitions. [2020-10-28 18:05:46,949 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1079 transitions. Word has length 96 [2020-10-28 18:05:46,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:05:46,949 INFO L481 AbstractCegarLoop]: Abstraction has 752 states and 1079 transitions. [2020-10-28 18:05:46,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-28 18:05:46,950 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1079 transitions. [2020-10-28 18:05:46,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-28 18:05:46,952 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:05:46,952 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:05:46,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 18:05:46,952 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:05:46,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:05:46,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1928628269, now seen corresponding path program 1 times [2020-10-28 18:05:46,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:05:46,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1865586996] [2020-10-28 18:05:46,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:05:46,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:46,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:47,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:47,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:47,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:47,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:47,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:47,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:51,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:51,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 18:05:51,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 18:05:51,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 18:05:51,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:51,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:51,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:05:51,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-28 18:05:51,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-28 18:05:51,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:52,296 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:05:52,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:05:52,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:52,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:52,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:52,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:52,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:52,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 18:05:52,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:52,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:52,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:52,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:52,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:52,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:52,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:05:52,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:52,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:52,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:52,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:52,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:52,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:52,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:52,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:52,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:52,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:52,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:52,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:52,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 18:05:52,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:52,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:52,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:52,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:52,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:52,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:52,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:52,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:52,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:52,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:52,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:52,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:52,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 18:05:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:52,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:52,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:52,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:05:52,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:52,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 18:05:52,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:52,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:52,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:52,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:52,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:52,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:52,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:52,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:52,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:52,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:52,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:52,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:52,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:05:52,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:52,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:52,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:52,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:52,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:52,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:52,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:05:52,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:52,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:52,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:52,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 18:05:52,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:52,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 18:05:52,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:52,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:52,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:05:52,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:52,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 18:05:52,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:05:52,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:52,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:52,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:52,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:52,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:52,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:52,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:52,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:52,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:52,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:52,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:52,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:52,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-28 18:05:52,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:52,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:52,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:52,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:05:52,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:52,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 18:05:52,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:52,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:52,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:05:52,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:52,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 18:05:52,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:52,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:52,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:52,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:52,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:52,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:52,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:52,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:52,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:52,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:52,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:52,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:52,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:52,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 18:05:52,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:52,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:52,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:52,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 18:05:52,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:52,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 18:05:52,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:52,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:52,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:05:52,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:52,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 18:05:52,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:52,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:05:52,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:52,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:52,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:52,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:52,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:52,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:52,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:52,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:52,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:52,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:52,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:52,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:52,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 18:05:52,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:52,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:52,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:52,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:05:52,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:52,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:05:52,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:52,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:52,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:52,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:05:52,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:52,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:52,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-28 18:05:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:52,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:52,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:05:52,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:05:52,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:05:52,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:05:52,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:05:52,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:05:52,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:05:52,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 18:05:52,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:05:52,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:05:52,754 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 18:05:52,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1865586996] [2020-10-28 18:05:52,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:05:52,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-28 18:05:52,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118353771] [2020-10-28 18:05:52,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 18:05:52,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:05:52,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 18:05:52,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-28 18:05:52,758 INFO L87 Difference]: Start difference. First operand 752 states and 1079 transitions. Second operand 12 states. [2020-10-28 18:05:53,039 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-28 18:05:54,929 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-28 18:05:57,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:05:57,505 INFO L93 Difference]: Finished difference Result 1511 states and 2160 transitions. [2020-10-28 18:05:57,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 18:05:57,506 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 96 [2020-10-28 18:05:57,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:05:57,512 INFO L225 Difference]: With dead ends: 1511 [2020-10-28 18:05:57,513 INFO L226 Difference]: Without dead ends: 787 [2020-10-28 18:05:57,517 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2020-10-28 18:05:57,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2020-10-28 18:05:57,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 752. [2020-10-28 18:05:57,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 752 states. [2020-10-28 18:05:57,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1075 transitions. [2020-10-28 18:05:57,644 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1075 transitions. Word has length 96 [2020-10-28 18:05:57,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:05:57,644 INFO L481 AbstractCegarLoop]: Abstraction has 752 states and 1075 transitions. [2020-10-28 18:05:57,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-28 18:05:57,644 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1075 transitions. [2020-10-28 18:05:57,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-28 18:05:57,646 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:05:57,646 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:05:57,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 18:05:57,647 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:05:57,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:05:57,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1429749197, now seen corresponding path program 1 times [2020-10-28 18:05:57,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:05:57,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [688907457] [2020-10-28 18:05:57,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:05:57,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:05:57,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:57,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:05:57,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:01,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:02,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:02,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-28 18:06:02,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 18:06:02,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-28 18:06:02,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:02,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:02,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 18:06:02,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 109 [2020-10-28 18:06:02,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:06:02,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:03,003 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:06:03,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:06:03,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:03,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:03,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:03,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:03,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:03,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 18:06:03,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:03,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:03,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:03,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:03,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:03,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:06:03,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:06:03,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:03,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:03,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:03,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:03,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:03,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:06:03,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:03,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:03,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:03,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:03,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:03,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:06:03,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 18:06:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:03,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:03,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:03,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:03,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:03,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:06:03,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:03,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:03,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:03,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:03,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:03,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:06:03,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 18:06:03,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:03,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:03,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:03,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:06:03,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:03,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:06:03,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:03,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:03,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:03,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:03,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:03,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:06:03,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:03,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:03,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:03,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:03,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:03,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:06:03,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:03,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:03,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:03,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:03,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:03,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:06:03,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:06:03,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:03,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:03,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:03,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:06:03,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:03,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 18:06:03,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:03,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:03,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:03,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:03,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:03,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:06:03,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:03,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:03,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:03,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:03,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:03,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:03,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:06:03,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:03,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:03,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:03,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:03,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:03,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:03,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 18:06:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:03,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:03,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:03,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:06:03,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:03,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 18:06:03,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:03,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:03,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:03,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:03,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:03,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:03,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:03,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:03,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:03,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:03,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:03,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:03,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:06:03,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:03,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:03,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:03,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:03,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:03,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:06:03,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-28 18:06:03,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:03,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:03,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:03,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 18:06:03,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:03,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:06:03,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:03,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:03,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:03,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:03,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:03,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:06:03,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:03,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:03,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:03,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:03,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:03,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:03,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:06:03,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:03,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:03,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:03,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:03,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:03,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:06:03,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 18:06:03,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:03,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:03,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:03,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:03,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:03,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:03,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:03,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:03,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:03,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:03,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:03,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:03,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-28 18:06:03,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:03,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:03,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:03,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:03,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:03,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 18:06:03,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:03,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:03,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 18:06:03,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 18:06:03,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:06:03,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:03,612 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 18:06:03,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [688907457] [2020-10-28 18:06:03,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:06:03,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-28 18:06:03,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42863766] [2020-10-28 18:06:03,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-28 18:06:03,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:06:03,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-28 18:06:03,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-28 18:06:03,614 INFO L87 Difference]: Start difference. First operand 752 states and 1075 transitions. Second operand 14 states. [2020-10-28 18:06:03,987 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-28 18:06:04,261 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-28 18:06:05,541 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-28 18:06:06,075 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-28 18:06:07,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:06:07,429 INFO L93 Difference]: Finished difference Result 1367 states and 1942 transitions. [2020-10-28 18:06:07,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 18:06:07,432 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 95 [2020-10-28 18:06:07,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:06:07,437 INFO L225 Difference]: With dead ends: 1367 [2020-10-28 18:06:07,437 INFO L226 Difference]: Without dead ends: 605 [2020-10-28 18:06:07,443 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=165, Invalid=387, Unknown=0, NotChecked=0, Total=552 [2020-10-28 18:06:07,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2020-10-28 18:06:07,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 605. [2020-10-28 18:06:07,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 605 states. [2020-10-28 18:06:07,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 861 transitions. [2020-10-28 18:06:07,538 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 861 transitions. Word has length 95 [2020-10-28 18:06:07,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:06:07,538 INFO L481 AbstractCegarLoop]: Abstraction has 605 states and 861 transitions. [2020-10-28 18:06:07,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-28 18:06:07,539 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 861 transitions. [2020-10-28 18:06:07,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-28 18:06:07,540 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:06:07,540 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:06:07,540 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 18:06:07,541 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:06:07,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:06:07,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1504206785, now seen corresponding path program 1 times [2020-10-28 18:06:07,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:06:07,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1134867207] [2020-10-28 18:06:07,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:06:07,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:07,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:07,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:07,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:07,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:07,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:09,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:12,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:12,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-28 18:06:12,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 18:06:12,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-28 18:06:12,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:12,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:12,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:06:12,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 118 [2020-10-28 18:06:12,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 18:06:12,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:12,922 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:06:12,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:06:12,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:12,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:12,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:12,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:12,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:12,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 18:06:12,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:12,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:12,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:12,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:12,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:12,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:12,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:06:12,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:12,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:12,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:12,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:12,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:12,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:12,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:12,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:12,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:12,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:12,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:12,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:12,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 18:06:12,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:12,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:12,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:12,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:12,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:12,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:12,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:12,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:12,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:12,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:12,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:12,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:12,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 18:06:12,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:12,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:13,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:13,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:06:13,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:13,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 18:06:13,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:13,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:13,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:13,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:13,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:13,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:13,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:13,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:13,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:13,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:13,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:13,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:13,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:06:13,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:13,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:13,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:13,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:13,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:13,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:13,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:06:13,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:13,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:13,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:13,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 18:06:13,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:13,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 18:06:13,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:13,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:13,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:13,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:13,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:13,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:13,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:13,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:13,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:13,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:13,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:13,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:13,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:06:13,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:13,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:13,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:13,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:13,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:13,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:13,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-28 18:06:13,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:13,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:13,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:13,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:06:13,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:13,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:06:13,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:13,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:13,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:13,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:13,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:13,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:13,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:13,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:13,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:13,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:13,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:13,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:13,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:13,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:13,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:13,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:13,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:13,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:13,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:13,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 18:06:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:13,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:13,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:13,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 18:06:13,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:13,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:06:13,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:13,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:13,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:13,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:13,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:13,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:13,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:13,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:13,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:13,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:13,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:13,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:13,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:13,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:13,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:13,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:13,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:13,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:13,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:13,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 18:06:13,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:13,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:13,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:13,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:13,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:13,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:13,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:13,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:13,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:13,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:13,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:13,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:13,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-28 18:06:13,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:13,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:13,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:13,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:13,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:13,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:13,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:13,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:13,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:13,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:13,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:13,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:13,281 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 18:06:13,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1134867207] [2020-10-28 18:06:13,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:06:13,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-28 18:06:13,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541306102] [2020-10-28 18:06:13,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 18:06:13,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:06:13,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 18:06:13,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-28 18:06:13,287 INFO L87 Difference]: Start difference. First operand 605 states and 861 transitions. Second operand 13 states. [2020-10-28 18:06:14,890 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-28 18:06:15,274 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-28 18:06:15,560 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-28 18:06:16,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:06:16,812 INFO L93 Difference]: Finished difference Result 1197 states and 1706 transitions. [2020-10-28 18:06:16,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 18:06:16,813 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 95 [2020-10-28 18:06:16,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:06:16,817 INFO L225 Difference]: With dead ends: 1197 [2020-10-28 18:06:16,817 INFO L226 Difference]: Without dead ends: 620 [2020-10-28 18:06:16,820 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-28 18:06:16,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2020-10-28 18:06:16,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 620. [2020-10-28 18:06:16,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 620 states. [2020-10-28 18:06:16,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 873 transitions. [2020-10-28 18:06:16,910 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 873 transitions. Word has length 95 [2020-10-28 18:06:16,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:06:16,911 INFO L481 AbstractCegarLoop]: Abstraction has 620 states and 873 transitions. [2020-10-28 18:06:16,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-28 18:06:16,911 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 873 transitions. [2020-10-28 18:06:16,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-28 18:06:16,913 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:06:16,913 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:06:16,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 18:06:16,914 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:06:16,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:06:16,914 INFO L82 PathProgramCache]: Analyzing trace with hash -822815065, now seen corresponding path program 1 times [2020-10-28 18:06:16,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:06:16,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [781273235] [2020-10-28 18:06:16,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:06:16,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:16,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:16,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:17,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:17,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:17,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:18,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:21,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:21,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-28 18:06:21,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 18:06:21,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-28 18:06:21,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:21,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:21,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:06:21,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-10-28 18:06:21,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 18:06:21,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:22,276 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:06:22,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:06:22,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:22,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:22,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:22,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:22,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:22,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 18:06:22,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:22,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:22,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:22,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:22,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:22,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:22,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:06:22,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:22,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:22,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:22,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:22,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:22,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:22,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:22,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:22,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:22,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:22,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:22,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:22,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 18:06:22,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:22,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:22,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:22,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:22,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:22,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:22,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:22,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:22,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:22,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:22,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:22,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:22,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 18:06:22,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:22,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:22,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:22,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:06:22,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:22,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:06:22,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:22,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:22,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:22,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:22,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:22,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:22,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:22,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:22,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:22,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:22,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:22,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:22,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:22,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:22,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:22,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:22,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:22,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:22,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:22,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:06:22,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:22,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:22,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:22,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 18:06:22,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:22,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 18:06:22,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:22,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:22,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:22,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:22,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:22,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:22,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:22,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:22,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:22,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:22,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:22,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:22,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:22,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:22,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:22,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:22,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:22,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:22,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-28 18:06:22,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:22,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:22,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:22,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:06:22,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:22,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:06:22,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:22,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:22,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:22,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:22,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:22,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:22,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:22,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:22,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:22,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:22,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:22,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:22,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:22,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:22,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:22,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:22,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:22,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:22,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 18:06:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:22,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:22,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:22,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 18:06:22,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:22,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:06:22,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:22,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:22,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:22,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:22,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:22,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:22,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:22,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:22,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:22,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:22,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:22,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:22,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:22,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:22,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:22,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:22,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:22,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:22,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 18:06:22,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:22,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:22,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:22,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:22,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:22,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:22,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:22,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:22,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:22,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:22,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:22,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:22,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-28 18:06:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:22,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:22,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:22,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:22,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:22,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:22,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:22,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:22,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:22,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:22,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:22,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:22,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 18:06:22,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:22,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:22,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:22,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:06:22,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:22,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:22,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:22,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:22,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:22,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:22,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:22,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:22,634 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 18:06:22,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [781273235] [2020-10-28 18:06:22,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:06:22,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-28 18:06:22,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063603051] [2020-10-28 18:06:22,635 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 18:06:22,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:06:22,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 18:06:22,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-28 18:06:22,636 INFO L87 Difference]: Start difference. First operand 620 states and 873 transitions. Second operand 13 states. [2020-10-28 18:06:24,696 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-28 18:06:24,990 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-28 18:06:26,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:06:26,243 INFO L93 Difference]: Finished difference Result 1227 states and 1739 transitions. [2020-10-28 18:06:26,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 18:06:26,244 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 103 [2020-10-28 18:06:26,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:06:26,249 INFO L225 Difference]: With dead ends: 1227 [2020-10-28 18:06:26,250 INFO L226 Difference]: Without dead ends: 635 [2020-10-28 18:06:26,252 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-28 18:06:26,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2020-10-28 18:06:26,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2020-10-28 18:06:26,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2020-10-28 18:06:26,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 885 transitions. [2020-10-28 18:06:26,342 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 885 transitions. Word has length 103 [2020-10-28 18:06:26,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:06:26,343 INFO L481 AbstractCegarLoop]: Abstraction has 635 states and 885 transitions. [2020-10-28 18:06:26,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-28 18:06:26,343 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 885 transitions. [2020-10-28 18:06:26,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-28 18:06:26,345 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:06:26,346 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:06:26,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 18:06:26,346 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:06:26,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:06:26,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1149085469, now seen corresponding path program 1 times [2020-10-28 18:06:26,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:06:26,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [307512949] [2020-10-28 18:06:26,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:06:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:26,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:26,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:26,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:26,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:26,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:26,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:31,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:31,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-28 18:06:31,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 18:06:31,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-28 18:06:31,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:31,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:31,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 18:06:31,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 18:06:31,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-28 18:06:31,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:31,654 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:06:31,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:06:31,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:31,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:31,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:31,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:31,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:31,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 18:06:31,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:31,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:31,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:31,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:31,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 18:06:31,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:31,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:06:31,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:31,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:31,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:31,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:31,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:31,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:06:31,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:31,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:31,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:31,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:31,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 18:06:31,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:31,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 18:06:31,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:31,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:31,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:31,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:31,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:31,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:06:31,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:31,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:31,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:31,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:31,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:06:31,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:31,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 18:06:31,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:31,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:31,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:31,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:06:31,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:31,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 18:06:31,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:31,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:31,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:31,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:31,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 18:06:31,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:31,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:31,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:31,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:31,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:31,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:31,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:31,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:31,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:31,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:31,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:31,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:31,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:31,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:31,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:06:31,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:31,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:31,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:31,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 18:06:31,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:31,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 18:06:31,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:31,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:31,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:31,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:31,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 18:06:31,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:06:31,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:31,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:31,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:31,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:31,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:31,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:31,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:31,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:31,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:31,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:31,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:31,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:31,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:31,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-28 18:06:31,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:31,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:31,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:31,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:06:31,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:31,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 18:06:31,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:31,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:31,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:31,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:31,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 18:06:31,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:32,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:32,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:32,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:32,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:32,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:32,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:32,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:32,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:32,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:32,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:32,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:32,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:32,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 18:06:32,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:32,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:32,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:32,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 18:06:32,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:32,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 18:06:32,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:32,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:32,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 18:06:32,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 18:06:32,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 18:06:32,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:32,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:32,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:32,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:32,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:32,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:32,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:06:32,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:32,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:32,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:32,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:32,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:06:32,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:32,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 18:06:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:32,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:32,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:32,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:32,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:32,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:06:32,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:32,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:32,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:32,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:32,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 18:06:32,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:32,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-28 18:06:32,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:32,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:32,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:32,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:32,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:32,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:32,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:32,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:32,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:32,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 18:06:32,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:32,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:32,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 18:06:32,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:32,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:32,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:32,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:06:32,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:32,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:06:32,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:32,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:32,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:32,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 18:06:32,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:32,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:32,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-28 18:06:32,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:32,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:32,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:32,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:06:32,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:32,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:32,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:32,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:32,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:32,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 18:06:32,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:32,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:32,187 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 18:06:32,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [307512949] [2020-10-28 18:06:32,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:06:32,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-28 18:06:32,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482616571] [2020-10-28 18:06:32,189 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-28 18:06:32,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:06:32,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-28 18:06:32,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2020-10-28 18:06:32,190 INFO L87 Difference]: Start difference. First operand 635 states and 885 transitions. Second operand 16 states. [2020-10-28 18:06:32,491 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-28 18:06:33,051 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-28 18:06:34,495 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 18:06:34,813 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-28 18:06:37,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:06:37,703 INFO L93 Difference]: Finished difference Result 1388 states and 1919 transitions. [2020-10-28 18:06:37,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-28 18:06:37,703 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 111 [2020-10-28 18:06:37,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:06:37,709 INFO L225 Difference]: With dead ends: 1388 [2020-10-28 18:06:37,709 INFO L226 Difference]: Without dead ends: 781 [2020-10-28 18:06:37,713 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=303, Invalid=887, Unknown=0, NotChecked=0, Total=1190 [2020-10-28 18:06:37,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2020-10-28 18:06:37,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 778. [2020-10-28 18:06:37,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 778 states. [2020-10-28 18:06:37,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1068 transitions. [2020-10-28 18:06:37,825 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1068 transitions. Word has length 111 [2020-10-28 18:06:37,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:06:37,825 INFO L481 AbstractCegarLoop]: Abstraction has 778 states and 1068 transitions. [2020-10-28 18:06:37,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-28 18:06:37,826 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1068 transitions. [2020-10-28 18:06:37,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-28 18:06:37,828 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:06:37,828 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:06:37,828 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 18:06:37,829 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:06:37,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:06:37,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1345454808, now seen corresponding path program 1 times [2020-10-28 18:06:37,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:06:37,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [372752468] [2020-10-28 18:06:37,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:06:37,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:37,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:37,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:37,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:37,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:38,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:38,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:39,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:42,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:42,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-28 18:06:42,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 18:06:42,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-28 18:06:42,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:42,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:42,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 18:06:42,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 18:06:42,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-28 18:06:42,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,131 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:06:43,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:06:43,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:43,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 18:06:43,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:43,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:43,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 18:06:43,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:06:43,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:43,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:43,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:43,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:43,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 18:06:43,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 18:06:43,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:43,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:43,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:43,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:43,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:06:43,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 18:06:43,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:06:43,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 18:06:43,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:43,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:43,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 18:06:43,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:43,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:43,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:43,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:43,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:43,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:43,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:06:43,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 18:06:43,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 18:06:43,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:43,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:43,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 18:06:43,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:43,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:43,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:43,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:43,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:43,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:43,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-28 18:06:43,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:06:43,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:06:43,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:43,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:43,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 18:06:43,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:43,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:43,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:06:43,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:43,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:43,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:43,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 18:06:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-28 18:06:43,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 18:06:43,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 18:06:43,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 18:06:43,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-28 18:06:43,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:43,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:06:43,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:43,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:43,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:06:43,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 18:06:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:43,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:06:43,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:43,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:43,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 18:06:43,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-28 18:06:43,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:43,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:43,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:43,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 18:06:43,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:43,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-28 18:06:43,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:06:43,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:06:43,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:43,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 18:06:43,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:43,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-28 18:06:43,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:43,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:43,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:43,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:06:43,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:43,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:06:43,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:43,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:43,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:43,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 18:06:43,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:43,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:43,576 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 18:06:43,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [372752468] [2020-10-28 18:06:43,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:06:43,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-28 18:06:43,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236762875] [2020-10-28 18:06:43,578 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-28 18:06:43,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:06:43,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-28 18:06:43,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2020-10-28 18:06:43,579 INFO L87 Difference]: Start difference. First operand 778 states and 1068 transitions. Second operand 16 states. [2020-10-28 18:06:43,862 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-28 18:06:44,376 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-28 18:06:45,828 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 18:06:45,988 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-28 18:06:46,160 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-28 18:06:48,303 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 18:06:48,457 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 18:06:48,872 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-28 18:06:49,015 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-28 18:06:49,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:06:49,374 INFO L93 Difference]: Finished difference Result 1442 states and 2000 transitions. [2020-10-28 18:06:49,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-28 18:06:49,379 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 112 [2020-10-28 18:06:49,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:06:49,386 INFO L225 Difference]: With dead ends: 1442 [2020-10-28 18:06:49,386 INFO L226 Difference]: Without dead ends: 817 [2020-10-28 18:06:49,389 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=338, Invalid=994, Unknown=0, NotChecked=0, Total=1332 [2020-10-28 18:06:49,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2020-10-28 18:06:49,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 799. [2020-10-28 18:06:49,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 799 states. [2020-10-28 18:06:49,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1095 transitions. [2020-10-28 18:06:49,505 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1095 transitions. Word has length 112 [2020-10-28 18:06:49,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:06:49,505 INFO L481 AbstractCegarLoop]: Abstraction has 799 states and 1095 transitions. [2020-10-28 18:06:49,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-28 18:06:49,505 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1095 transitions. [2020-10-28 18:06:49,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-28 18:06:49,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:06:49,508 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:06:49,508 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 18:06:49,508 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:06:49,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:06:49,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1913216259, now seen corresponding path program 1 times [2020-10-28 18:06:49,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:06:49,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [559151126] [2020-10-28 18:06:49,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:06:49,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:49,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:49,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:49,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:54,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:54,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-28 18:06:54,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 18:06:54,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-28 18:06:54,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:54,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:54,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 18:06:54,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 18:06:54,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 18:06:54,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:54,800 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:06:54,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:06:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:54,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:54,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:54,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:54,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:54,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 18:06:54,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:54,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:54,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:54,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:54,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 18:06:54,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:54,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:06:54,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:54,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:54,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:54,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:54,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:54,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:06:54,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:54,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:54,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:54,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:54,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 18:06:54,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:54,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 18:06:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:54,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:54,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:54,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:54,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:54,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:06:54,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:54,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:54,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:54,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:54,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:06:54,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:54,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 18:06:54,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:54,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:54,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:54,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:06:54,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:54,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 18:06:54,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:54,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:54,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:54,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:54,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 18:06:54,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:54,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:54,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:54,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:54,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:54,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:54,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:54,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:54,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:54,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:54,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:54,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:54,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:54,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:54,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:06:54,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:54,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:54,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:54,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 18:06:54,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:54,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 18:06:54,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:54,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:54,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:54,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:54,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 18:06:54,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:55,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:55,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:55,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:55,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:55,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:55,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:55,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:55,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:55,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:55,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:55,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:55,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:55,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-28 18:06:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:55,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:55,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:55,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:06:55,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:55,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 18:06:55,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:55,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:55,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:55,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:55,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 18:06:55,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:55,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:55,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:55,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:55,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:55,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:55,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:55,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:55,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:55,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:55,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:55,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:55,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:55,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:55,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 18:06:55,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:55,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:55,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:55,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-28 18:06:55,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:55,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 18:06:55,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:55,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:55,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 18:06:55,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 18:06:55,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-28 18:06:55,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:55,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:06:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:55,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:55,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:55,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:55,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:55,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:06:55,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:55,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:55,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:55,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:55,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:06:55,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:06:55,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 18:06:55,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:55,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:55,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:55,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:06:55,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:55,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:06:55,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:55,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:55,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:06:55,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:06:55,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 18:06:55,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:55,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-28 18:06:55,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:55,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:55,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:55,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:06:55,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:55,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:55,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:55,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:55,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:55,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 18:06:55,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:55,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:55,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-28 18:06:55,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:55,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:55,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:55,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:06:55,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:55,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:55,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:55,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:55,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:55,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 18:06:55,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:55,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:55,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-28 18:06:55,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:06:55,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:06:55,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:06:55,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:06:55,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:06:55,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:06:55,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:06:55,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:06:55,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:06:55,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 18:06:55,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:06:55,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:06:55,273 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 18:06:55,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [559151126] [2020-10-28 18:06:55,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:06:55,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-28 18:06:55,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268971041] [2020-10-28 18:06:55,274 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-28 18:06:55,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:06:55,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-28 18:06:55,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2020-10-28 18:06:55,275 INFO L87 Difference]: Start difference. First operand 799 states and 1095 transitions. Second operand 16 states. [2020-10-28 18:06:55,566 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-28 18:06:56,084 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-28 18:06:57,535 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 18:06:59,946 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 18:07:00,088 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 18:07:00,550 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-28 18:07:00,687 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-28 18:07:01,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:07:01,026 INFO L93 Difference]: Finished difference Result 1445 states and 1997 transitions. [2020-10-28 18:07:01,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-28 18:07:01,026 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 114 [2020-10-28 18:07:01,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:07:01,031 INFO L225 Difference]: With dead ends: 1445 [2020-10-28 18:07:01,032 INFO L226 Difference]: Without dead ends: 826 [2020-10-28 18:07:01,034 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=338, Invalid=994, Unknown=0, NotChecked=0, Total=1332 [2020-10-28 18:07:01,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2020-10-28 18:07:01,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 799. [2020-10-28 18:07:01,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 799 states. [2020-10-28 18:07:01,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1086 transitions. [2020-10-28 18:07:01,149 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1086 transitions. Word has length 114 [2020-10-28 18:07:01,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:07:01,150 INFO L481 AbstractCegarLoop]: Abstraction has 799 states and 1086 transitions. [2020-10-28 18:07:01,150 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-28 18:07:01,150 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1086 transitions. [2020-10-28 18:07:01,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-28 18:07:01,152 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:07:01,153 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:07:01,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 18:07:01,153 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:07:01,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:07:01,153 INFO L82 PathProgramCache]: Analyzing trace with hash 848881387, now seen corresponding path program 1 times [2020-10-28 18:07:01,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:07:01,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [536941895] [2020-10-28 18:07:01,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:07:01,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:01,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:01,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:01,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:04,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:04,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-28 18:07:04,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 18:07:04,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3577 [2020-10-28 18:07:04,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:04,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:04,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:07:04,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-28 18:07:04,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 18:07:04,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:05,036 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:07:05,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:07:05,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:05,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:05,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:05,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:05,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:05,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 18:07:05,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:05,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:05,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:05,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:05,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:05,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:05,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:07:05,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:05,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:05,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:05,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:05,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:05,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:05,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:05,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:05,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:05,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:05,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:05,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:05,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 18:07:05,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:05,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:05,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:05,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:05,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:05,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:05,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:05,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:05,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:05,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:05,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:05,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:05,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 18:07:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:05,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:05,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:05,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:07:05,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:05,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:07:05,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:05,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:05,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:05,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:05,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:05,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:05,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:05,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:05,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:05,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:05,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:05,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:05,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:05,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:05,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:05,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:05,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:05,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:05,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:05,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:07:05,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:05,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:05,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:05,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 18:07:05,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:05,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 18:07:05,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:05,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:05,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:05,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:05,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:05,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:05,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:05,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:05,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:05,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:05,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:05,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:05,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:07:05,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:05,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:05,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:05,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:05,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:05,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:05,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-28 18:07:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:05,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:05,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:05,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:07:05,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:05,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:07:05,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:05,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:05,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:05,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:05,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:05,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:05,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:05,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:05,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:05,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:05,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:05,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:05,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:05,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:05,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:05,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:05,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:05,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:05,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 18:07:05,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:05,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:05,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:05,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 18:07:05,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:05,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:07:05,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:05,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:05,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:05,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:05,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:05,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:05,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:05,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:05,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:05,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:05,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:05,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:05,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:05,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:05,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:05,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:05,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:05,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:05,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:05,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 18:07:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:05,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:05,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:05,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:05,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:05,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:05,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:05,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:05,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:05,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:05,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:05,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:05,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-28 18:07:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:05,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:05,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:05,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:05,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:05,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:05,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:05,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:05,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:05,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:05,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:05,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:05,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-28 18:07:05,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:05,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:05,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:05,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:07:05,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:05,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:05,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:05,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:05,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:05,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:05,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:05,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:05,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-28 18:07:05,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:05,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:05,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:05,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:07:05,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:05,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:05,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:05,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:05,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:05,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:05,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:05,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:05,389 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 18:07:05,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [536941895] [2020-10-28 18:07:05,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:07:05,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-28 18:07:05,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822070925] [2020-10-28 18:07:05,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 18:07:05,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:07:05,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 18:07:05,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-28 18:07:05,391 INFO L87 Difference]: Start difference. First operand 799 states and 1086 transitions. Second operand 13 states. [2020-10-28 18:07:07,544 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-28 18:07:07,852 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-28 18:07:09,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:07:09,071 INFO L93 Difference]: Finished difference Result 1421 states and 1955 transitions. [2020-10-28 18:07:09,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 18:07:09,072 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 115 [2020-10-28 18:07:09,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:07:09,078 INFO L225 Difference]: With dead ends: 1421 [2020-10-28 18:07:09,078 INFO L226 Difference]: Without dead ends: 811 [2020-10-28 18:07:09,082 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-28 18:07:09,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2020-10-28 18:07:09,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 811. [2020-10-28 18:07:09,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2020-10-28 18:07:09,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1095 transitions. [2020-10-28 18:07:09,232 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1095 transitions. Word has length 115 [2020-10-28 18:07:09,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:07:09,233 INFO L481 AbstractCegarLoop]: Abstraction has 811 states and 1095 transitions. [2020-10-28 18:07:09,233 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-28 18:07:09,233 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1095 transitions. [2020-10-28 18:07:09,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-28 18:07:09,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:07:09,235 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:07:09,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 18:07:09,236 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:07:09,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:07:09,236 INFO L82 PathProgramCache]: Analyzing trace with hash 542792267, now seen corresponding path program 1 times [2020-10-28 18:07:09,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:07:09,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1180433011] [2020-10-28 18:07:09,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:07:09,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:09,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:09,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:10,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:10,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-28 18:07:10,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 18:07:10,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 958 [2020-10-28 18:07:10,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:10,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:10,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:07:10,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-28 18:07:10,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 18:07:10,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:10,531 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:07:10,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:07:10,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:10,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:10,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:10,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:10,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:10,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 18:07:10,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:10,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:10,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:10,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:10,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:10,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:10,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:07:10,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:10,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:10,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:10,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:10,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:10,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:10,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:10,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:10,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:10,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:10,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:10,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:10,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 18:07:10,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:10,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:10,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:10,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:10,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:10,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 18:07:10,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:10,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:10,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:10,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:10,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:10,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:10,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 18:07:10,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:10,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:10,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:10,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:07:10,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:10,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:07:10,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:10,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:10,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:10,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:10,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:10,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:10,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:10,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:10,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:10,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:10,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:10,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:10,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:10,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:10,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:10,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:10,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:10,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:10,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:10,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:07:10,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:10,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:10,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:10,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 18:07:10,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:10,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 18:07:10,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:10,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:10,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:10,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:10,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:10,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:10,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:10,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:10,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:10,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:10,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:10,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:10,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:10,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:10,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:10,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:10,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:10,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:10,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:10,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-28 18:07:10,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:10,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:10,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:10,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:07:10,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:10,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:07:10,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:10,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:10,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:10,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:10,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:10,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:10,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:10,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:10,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:10,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:10,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:10,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:10,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:07:10,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:10,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:10,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:10,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:10,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:10,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:10,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 18:07:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:10,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:10,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:10,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 18:07:10,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:10,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:07:10,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:10,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:10,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:10,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:10,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:10,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:10,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:10,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:10,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:10,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:10,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:10,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:10,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:10,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:10,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:10,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:10,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:10,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:10,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 18:07:10,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:10,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:10,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:10,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:10,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:10,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:10,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:10,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:10,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:10,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:10,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:10,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:10,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-28 18:07:10,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:10,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:10,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:10,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:10,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:10,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:10,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:10,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:10,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:10,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:10,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:10,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:10,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-28 18:07:10,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:10,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:10,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:10,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:07:10,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:10,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:10,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:10,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:10,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:10,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:10,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:10,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:10,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-28 18:07:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:10,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:10,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:10,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:07:10,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:10,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:07:10,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:10,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:10,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:10,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:10,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:10,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:10,900 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 18:07:10,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1180433011] [2020-10-28 18:07:10,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:07:10,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-28 18:07:10,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41320817] [2020-10-28 18:07:10,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 18:07:10,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:07:10,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 18:07:10,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-28 18:07:10,903 INFO L87 Difference]: Start difference. First operand 811 states and 1095 transitions. Second operand 13 states. [2020-10-28 18:07:12,948 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-28 18:07:13,244 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-28 18:07:14,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:07:14,462 INFO L93 Difference]: Finished difference Result 1448 states and 1985 transitions. [2020-10-28 18:07:14,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 18:07:14,463 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 115 [2020-10-28 18:07:14,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:07:14,469 INFO L225 Difference]: With dead ends: 1448 [2020-10-28 18:07:14,469 INFO L226 Difference]: Without dead ends: 826 [2020-10-28 18:07:14,472 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-28 18:07:14,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2020-10-28 18:07:14,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 826. [2020-10-28 18:07:14,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 826 states. [2020-10-28 18:07:14,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1107 transitions. [2020-10-28 18:07:14,605 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1107 transitions. Word has length 115 [2020-10-28 18:07:14,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:07:14,606 INFO L481 AbstractCegarLoop]: Abstraction has 826 states and 1107 transitions. [2020-10-28 18:07:14,606 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-28 18:07:14,606 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1107 transitions. [2020-10-28 18:07:14,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-28 18:07:14,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:07:14,608 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:07:14,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 18:07:14,609 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:07:14,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:07:14,609 INFO L82 PathProgramCache]: Analyzing trace with hash -27897333, now seen corresponding path program 1 times [2020-10-28 18:07:14,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:07:14,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [251338852] [2020-10-28 18:07:14,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:07:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:14,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:14,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:14,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:19,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:19,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-28 18:07:19,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 18:07:19,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-28 18:07:19,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:19,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:19,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 18:07:19,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-28 18:07:19,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 18:07:19,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:19,955 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:07:19,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:07:19,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:19,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:19,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:19,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:19,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:19,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:07:19,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:19,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:19,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:19,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:19,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:19,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:19,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:07:19,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:19,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:19,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:19,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:19,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:19,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:19,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:19,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:19,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:19,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:19,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:19,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:19,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 18:07:19,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:19,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:19,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:19,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:19,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:19,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:19,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:19,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:19,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:19,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:19,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:19,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:20,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 18:07:20,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:20,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:20,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:20,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:07:20,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:20,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:07:20,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:20,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:20,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:20,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:20,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:20,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:20,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:20,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:20,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:20,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:20,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:20,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:20,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:20,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:20,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:20,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:20,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:20,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:20,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:20,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:07:20,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:20,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:20,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:20,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 18:07:20,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:20,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 18:07:20,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:20,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:20,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:20,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:20,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:20,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:20,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:20,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:20,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:20,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:20,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:20,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:20,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:20,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:20,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:20,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:20,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:20,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:20,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:20,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-28 18:07:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:20,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:20,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:20,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:07:20,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:20,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:07:20,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:20,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:20,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:20,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:20,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:20,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:20,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:20,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:20,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:20,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:20,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:20,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:20,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:20,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:20,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:20,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:20,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:20,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:20,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:20,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 18:07:20,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:20,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:20,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:20,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 18:07:20,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:20,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:07:20,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:20,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:20,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:20,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:20,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:20,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:20,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:20,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:20,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:20,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:20,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:20,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:20,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:20,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:20,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:20,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:20,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:20,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:20,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 18:07:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:20,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:20,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:20,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:20,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:20,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:20,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:20,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:20,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:20,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:20,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:20,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:20,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-28 18:07:20,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:20,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:20,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:20,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:20,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:20,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:20,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:20,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:20,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:20,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:20,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:20,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:20,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-28 18:07:20,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:20,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:20,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:20,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:07:20,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:20,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:07:20,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:20,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:20,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:20,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:20,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:20,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:20,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-28 18:07:20,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:20,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:20,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:20,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:07:20,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:20,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:07:20,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:20,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:20,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:07:20,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:20,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:07:20,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:20,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-28 18:07:20,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:20,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:20,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:20,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:07:20,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:20,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 18:07:20,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:20,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:20,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 18:07:20,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:20,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 18:07:20,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:20,422 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-28 18:07:20,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [251338852] [2020-10-28 18:07:20,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:07:20,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-28 18:07:20,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159985258] [2020-10-28 18:07:20,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-28 18:07:20,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:07:20,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-28 18:07:20,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2020-10-28 18:07:20,424 INFO L87 Difference]: Start difference. First operand 826 states and 1107 transitions. Second operand 17 states. [2020-10-28 18:07:20,740 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-28 18:07:21,244 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-28 18:07:23,769 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-28 18:07:24,037 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-28 18:07:24,314 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-28 18:07:24,612 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-28 18:07:25,021 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-28 18:07:25,395 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-28 18:07:25,735 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-28 18:07:27,319 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-28 18:07:28,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:07:28,886 INFO L93 Difference]: Finished difference Result 1897 states and 2562 transitions. [2020-10-28 18:07:28,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-28 18:07:28,887 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 123 [2020-10-28 18:07:28,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:07:28,894 INFO L225 Difference]: With dead ends: 1897 [2020-10-28 18:07:28,894 INFO L226 Difference]: Without dead ends: 1260 [2020-10-28 18:07:28,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=334, Invalid=856, Unknown=0, NotChecked=0, Total=1190 [2020-10-28 18:07:28,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1260 states. [2020-10-28 18:07:29,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1260 to 1105. [2020-10-28 18:07:29,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1105 states. [2020-10-28 18:07:29,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 1476 transitions. [2020-10-28 18:07:29,064 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 1476 transitions. Word has length 123 [2020-10-28 18:07:29,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:07:29,065 INFO L481 AbstractCegarLoop]: Abstraction has 1105 states and 1476 transitions. [2020-10-28 18:07:29,065 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-28 18:07:29,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 1476 transitions. [2020-10-28 18:07:29,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-28 18:07:29,068 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:07:29,068 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:07:29,068 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 18:07:29,068 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:07:29,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:07:29,069 INFO L82 PathProgramCache]: Analyzing trace with hash 136594865, now seen corresponding path program 1 times [2020-10-28 18:07:29,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:07:29,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [865286104] [2020-10-28 18:07:29,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:07:29,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:29,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:29,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:29,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-28 18:07:29,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:29,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-10-28 18:07:29,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:29,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:29,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 18:07:29,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 18:07:29,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 18:07:29,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:29,681 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:07:29,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:07:29,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:29,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:29,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:29,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:29,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:29,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:07:29,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:29,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:29,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:29,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:29,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:29,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:29,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:07:29,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:29,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:29,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:29,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:29,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:29,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:07:29,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:29,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:29,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:07:29,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:29,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 18:07:29,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:29,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 18:07:29,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:29,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:29,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:29,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:29,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:29,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:07:29,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:29,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:29,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 18:07:29,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 18:07:29,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:07:29,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:29,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 18:07:29,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:29,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:29,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:29,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:07:29,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:29,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:07:29,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:29,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:29,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:29,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 18:07:29,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:29,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:29,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:29,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:29,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:29,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:29,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:29,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:29,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:29,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:29,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:29,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:29,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:29,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:29,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:29,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:07:29,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:29,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:29,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:29,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 18:07:29,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:29,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:07:29,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:29,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:29,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:29,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 18:07:29,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:29,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:29,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:29,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:29,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:29,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:29,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:29,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:29,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:29,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:29,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:29,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:29,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:29,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:29,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:29,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-28 18:07:30,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:30,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:30,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:30,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:07:30,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:30,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:07:30,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:30,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:30,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:30,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 18:07:30,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:30,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:30,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:30,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:30,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:30,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:30,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:30,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:30,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:30,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:30,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:30,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:30,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:30,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:30,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:30,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 18:07:30,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:30,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:30,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:30,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 18:07:30,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:30,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:07:30,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:30,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:30,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:30,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-28 18:07:30,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:30,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:30,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:30,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:30,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:30,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:30,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:30,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:30,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:30,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:30,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:30,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:30,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:30,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:30,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:30,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 18:07:30,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:30,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:30,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:30,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:30,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:30,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:30,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:30,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:30,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:30,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:30,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:30,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:30,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-28 18:07:30,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:30,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:30,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:30,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-28 18:07:30,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:30,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 18:07:30,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:30,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:30,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:30,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-28 18:07:30,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:30,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:30,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 18:07:30,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:30,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:30,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:30,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:30,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:30,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:30,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:30,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:30,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:30,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:30,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:30,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:30,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 18:07:30,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:30,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:30,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:30,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:07:30,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:30,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:30,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:30,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:30,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:30,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:30,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:30,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:30,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 18:07:30,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:30,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:30,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:30,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:07:30,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:30,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:07:30,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:30,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:30,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:30,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:30,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:30,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:30,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 18:07:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:30,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:30,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:30,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:07:30,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:30,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:30,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:30,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:30,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:30,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:30,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:30,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:30,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-28 18:07:30,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:30,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:30,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:30,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:30,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:30,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 18:07:30,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:30,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:30,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:30,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:30,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:30,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:30,178 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 18:07:30,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [865286104] [2020-10-28 18:07:30,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 18:07:30,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-28 18:07:30,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378030139] [2020-10-28 18:07:30,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-28 18:07:30,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:07:30,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-28 18:07:30,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2020-10-28 18:07:30,180 INFO L87 Difference]: Start difference. First operand 1105 states and 1476 transitions. Second operand 16 states. [2020-10-28 18:07:30,495 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-28 18:07:30,871 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-28 18:07:31,200 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-28 18:07:34,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:07:34,890 INFO L93 Difference]: Finished difference Result 2207 states and 2950 transitions. [2020-10-28 18:07:34,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-28 18:07:34,891 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 128 [2020-10-28 18:07:34,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:07:34,897 INFO L225 Difference]: With dead ends: 2207 [2020-10-28 18:07:34,897 INFO L226 Difference]: Without dead ends: 1125 [2020-10-28 18:07:34,900 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=169, Invalid=481, Unknown=0, NotChecked=0, Total=650 [2020-10-28 18:07:34,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2020-10-28 18:07:35,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 1105. [2020-10-28 18:07:35,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1105 states. [2020-10-28 18:07:35,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 1464 transitions. [2020-10-28 18:07:35,059 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 1464 transitions. Word has length 128 [2020-10-28 18:07:35,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:07:35,060 INFO L481 AbstractCegarLoop]: Abstraction has 1105 states and 1464 transitions. [2020-10-28 18:07:35,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-28 18:07:35,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 1464 transitions. [2020-10-28 18:07:35,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-28 18:07:35,063 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:07:35,063 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:07:35,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 18:07:35,063 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:07:35,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:07:35,064 INFO L82 PathProgramCache]: Analyzing trace with hash 25404239, now seen corresponding path program 1 times [2020-10-28 18:07:35,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:07:35,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1400361306] [2020-10-28 18:07:35,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:07:35,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:35,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:35,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:39,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:39,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 18:07:39,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 18:07:39,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3962 [2020-10-28 18:07:39,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:39,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:39,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 18:07:39,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 18:07:39,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-28 18:07:39,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:39,355 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:07:39,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:07:39,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:39,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:39,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:39,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:39,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:39,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:07:39,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:39,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:39,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:39,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:39,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:39,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:39,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:07:39,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:39,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:39,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:39,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-28 18:07:39,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:39,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:07:39,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:39,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:39,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:07:39,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:39,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 18:07:39,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:39,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 18:07:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:39,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:39,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:39,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:39,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:39,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:39,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:39,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:39,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:07:39,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:39,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:07:39,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:39,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 18:07:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:39,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:39,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:39,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:07:39,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:39,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 18:07:39,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:39,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:39,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:07:39,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:39,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 18:07:39,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:39,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:39,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:39,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:39,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:39,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:39,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:39,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:39,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:39,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:39,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:39,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:39,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:39,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:39,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 18:07:39,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:39,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:39,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:39,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 18:07:39,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:39,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-28 18:07:39,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:39,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:39,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 18:07:39,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 18:07:39,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-28 18:07:39,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:39,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:39,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:39,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:39,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:39,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:39,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:07:39,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:39,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:39,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 18:07:39,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 18:07:39,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:07:39,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:39,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 18:07:39,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:39,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:39,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:39,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:07:39,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:39,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 18:07:39,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:39,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:39,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:07:39,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:39,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 18:07:39,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:39,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:39,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:39,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:39,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:39,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:39,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:39,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:39,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:39,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:39,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:39,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:39,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:39,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-28 18:07:39,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:39,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:39,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:39,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 18:07:39,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:39,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 18:07:39,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:39,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:39,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:07:39,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:39,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-28 18:07:39,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:39,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:39,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:39,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:39,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:39,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:39,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:39,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:39,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:39,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:39,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:39,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:39,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:39,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:39,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 18:07:39,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:39,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:39,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:39,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:39,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:39,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 18:07:39,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:39,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:39,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:39,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:39,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:39,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:39,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-28 18:07:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:39,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:39,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:39,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-28 18:07:39,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:39,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-28 18:07:39,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:39,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:39,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 18:07:39,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-28 18:07:39,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-28 18:07:39,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:40,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 18:07:40,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:40,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:40,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:40,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:40,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:40,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:07:40,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:40,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:40,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:40,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:40,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:40,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 18:07:40,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 18:07:40,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:40,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:40,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:40,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:07:40,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:40,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:07:40,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:40,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:40,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:40,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:40,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:40,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:40,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 18:07:40,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:40,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:40,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:40,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:07:40,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:40,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:07:40,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:40,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:40,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:07:40,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:40,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:07:40,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:40,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 18:07:40,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:40,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:40,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:40,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:07:40,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:40,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:07:40,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:40,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:40,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:07:40,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:40,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 18:07:40,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:40,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-28 18:07:40,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:40,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:40,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:40,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:40,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:40,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:07:40,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:40,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:40,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:07:40,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:40,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:07:40,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:40,194 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-28 18:07:40,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1400361306] [2020-10-28 18:07:40,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:07:40,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-28 18:07:40,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736997211] [2020-10-28 18:07:40,197 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-28 18:07:40,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:07:40,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-28 18:07:40,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2020-10-28 18:07:40,201 INFO L87 Difference]: Start difference. First operand 1105 states and 1464 transitions. Second operand 19 states. [2020-10-28 18:07:40,571 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-28 18:07:40,882 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-28 18:07:41,244 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-28 18:07:42,126 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-28 18:07:43,093 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-28 18:07:43,886 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-28 18:07:44,217 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-28 18:07:44,787 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 173 [2020-10-28 18:07:47,934 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-28 18:07:48,240 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-28 18:07:48,550 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-28 18:07:48,885 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-28 18:07:49,194 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-28 18:07:49,743 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-28 18:07:51,089 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-28 18:07:53,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:07:53,351 INFO L93 Difference]: Finished difference Result 2712 states and 3555 transitions. [2020-10-28 18:07:53,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-28 18:07:53,352 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 139 [2020-10-28 18:07:53,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:07:53,361 INFO L225 Difference]: With dead ends: 2712 [2020-10-28 18:07:53,361 INFO L226 Difference]: Without dead ends: 1796 [2020-10-28 18:07:53,365 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 562 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=549, Invalid=1901, Unknown=0, NotChecked=0, Total=2450 [2020-10-28 18:07:53,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1796 states. [2020-10-28 18:07:53,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1796 to 1700. [2020-10-28 18:07:53,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1700 states. [2020-10-28 18:07:53,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1700 states to 1700 states and 2197 transitions. [2020-10-28 18:07:53,634 INFO L78 Accepts]: Start accepts. Automaton has 1700 states and 2197 transitions. Word has length 139 [2020-10-28 18:07:53,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:07:53,635 INFO L481 AbstractCegarLoop]: Abstraction has 1700 states and 2197 transitions. [2020-10-28 18:07:53,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-28 18:07:53,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1700 states and 2197 transitions. [2020-10-28 18:07:53,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-28 18:07:53,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:07:53,637 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:07:53,637 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-28 18:07:53,637 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:07:53,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:07:53,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1292376468, now seen corresponding path program 1 times [2020-10-28 18:07:53,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:07:53,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1961365802] [2020-10-28 18:07:53,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:07:53,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:53,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:53,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:53,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-28 18:07:53,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:53,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-10-28 18:07:53,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:53,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:53,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:07:53,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 172 [2020-10-28 18:07:53,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 18:07:53,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:54,280 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:07:54,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:07:54,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:54,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:54,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:54,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:54,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:54,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 18:07:54,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:54,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:54,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:54,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:54,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:54,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:54,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:07:54,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:54,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:54,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:54,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-28 18:07:54,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:54,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:07:54,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:54,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:54,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:54,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:54,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:54,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:54,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 18:07:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:54,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:54,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:54,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:54,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:54,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:54,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:54,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:54,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:54,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:54,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:54,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:54,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 18:07:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:54,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:54,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:54,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:07:54,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:54,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 18:07:54,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:54,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:54,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:54,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:54,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:54,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:07:54,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:54,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:54,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:54,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:54,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:54,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:54,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:54,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:54,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:54,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:54,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:54,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:54,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:54,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 18:07:54,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:54,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:54,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:54,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 18:07:54,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:54,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 18:07:54,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:54,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:54,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:54,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:54,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:54,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:54,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:54,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:54,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:54,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:54,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:54,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:54,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:54,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:54,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:54,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:54,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:54,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:54,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:54,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 18:07:54,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:54,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:54,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:54,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:07:54,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:54,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 18:07:54,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:54,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:54,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:54,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:54,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:54,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:54,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:54,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:54,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:54,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:54,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:54,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:54,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:54,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:54,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:54,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:54,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:54,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:54,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:54,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-28 18:07:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:54,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:54,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:54,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 18:07:54,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:54,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 18:07:54,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:54,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:54,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:54,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:54,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:54,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:54,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:07:54,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:54,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:54,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:54,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:54,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:54,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:54,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:54,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:54,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:54,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:54,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:54,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:54,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 18:07:54,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:54,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:54,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:54,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:07:54,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:54,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:54,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:54,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:54,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:54,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:54,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:54,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:54,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-28 18:07:54,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:54,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:54,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:54,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:54,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:54,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:54,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:54,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:54,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:54,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:54,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:54,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:54,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-28 18:07:54,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:54,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:54,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:54,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:07:54,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:54,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:54,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:54,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:54,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:54,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:54,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:54,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:54,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-28 18:07:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:54,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:54,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:54,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:07:54,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:54,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:54,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:54,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:54,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:54,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:54,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:54,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:54,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-28 18:07:54,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:54,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:54,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:54,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:07:54,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:54,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:54,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:54,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:54,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:54,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:54,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:54,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:54,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 18:07:54,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:54,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:54,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:07:54,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:07:54,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:07:54,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:07:54,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:07:54,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:07:54,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:07:54,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:07:54,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:07:54,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:07:54,664 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-28 18:07:54,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1961365802] [2020-10-28 18:07:54,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:07:54,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-28 18:07:54,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121643599] [2020-10-28 18:07:54,666 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 18:07:54,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:07:54,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 18:07:54,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-28 18:07:54,666 INFO L87 Difference]: Start difference. First operand 1700 states and 2197 transitions. Second operand 13 states. [2020-10-28 18:07:57,159 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-28 18:07:57,482 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-28 18:07:58,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:07:58,495 INFO L93 Difference]: Finished difference Result 3075 states and 4014 transitions. [2020-10-28 18:07:58,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 18:07:58,496 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 141 [2020-10-28 18:07:58,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:07:58,503 INFO L225 Difference]: With dead ends: 3075 [2020-10-28 18:07:58,503 INFO L226 Difference]: Without dead ends: 1688 [2020-10-28 18:07:58,507 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-28 18:07:58,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1688 states. [2020-10-28 18:07:58,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1688 to 1664. [2020-10-28 18:07:58,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1664 states. [2020-10-28 18:07:58,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1664 states to 1664 states and 2130 transitions. [2020-10-28 18:07:58,756 INFO L78 Accepts]: Start accepts. Automaton has 1664 states and 2130 transitions. Word has length 141 [2020-10-28 18:07:58,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:07:58,756 INFO L481 AbstractCegarLoop]: Abstraction has 1664 states and 2130 transitions. [2020-10-28 18:07:58,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-28 18:07:58,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1664 states and 2130 transitions. [2020-10-28 18:07:58,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-28 18:07:58,758 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:07:58,759 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:07:58,759 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-28 18:07:58,759 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:07:58,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:07:58,759 INFO L82 PathProgramCache]: Analyzing trace with hash 683419485, now seen corresponding path program 1 times [2020-10-28 18:07:58,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:07:58,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1171860624] [2020-10-28 18:07:58,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:07:58,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:07:58,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:07:58,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:00,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:00,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-28 18:08:00,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 18:08:00,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1405 [2020-10-28 18:08:00,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:00,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:00,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:08:00,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-28 18:08:00,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:08:00,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:00,537 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:08:00,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:08:00,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:00,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:00,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:00,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:08:00,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:00,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:08:00,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:00,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:00,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:00,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:00,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:00,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:00,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:08:00,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:00,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:00,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:00,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-28 18:08:00,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:00,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:08:00,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:00,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:00,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:00,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:00,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:00,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:00,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 18:08:00,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:00,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:00,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:00,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:08:00,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:00,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:08:00,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:00,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:00,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:00,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:00,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:00,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:00,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 18:08:00,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:00,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:00,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:00,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:08:00,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:00,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:08:00,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:00,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:00,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:00,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:00,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:00,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:00,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:08:00,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:00,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:00,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:00,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:08:00,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:00,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:08:00,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:00,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:00,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:00,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:00,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:00,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:00,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 18:08:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:00,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:00,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:00,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 18:08:00,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:00,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 18:08:00,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:00,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:00,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:00,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:00,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:00,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:00,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:08:00,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:00,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:00,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:00,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:08:00,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:00,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:08:00,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:00,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:00,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:00,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:00,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:00,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:00,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 18:08:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:00,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:00,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:00,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:08:00,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:00,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:08:00,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:00,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:00,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:00,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:00,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:00,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:00,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:08:00,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:00,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:00,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:00,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:08:00,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:00,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:08:00,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:00,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:00,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:00,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:00,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:00,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:00,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-28 18:08:00,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:00,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:00,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:00,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 18:08:00,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:00,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:08:00,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:00,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:00,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:00,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:00,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:00,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:00,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:08:00,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:00,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:00,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:00,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:08:00,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:00,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 18:08:00,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:00,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:00,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:00,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:00,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:00,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:00,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 18:08:00,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:00,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:00,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:00,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:08:00,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:00,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:08:00,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:00,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:00,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:00,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:00,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:00,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:00,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-28 18:08:00,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:00,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:00,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:00,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:08:00,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:00,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:08:00,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:00,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:00,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:00,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:00,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:00,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:00,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-28 18:08:00,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:00,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:00,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:00,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:08:00,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:00,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:08:00,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:00,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:00,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:00,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:00,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:00,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:00,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-28 18:08:00,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:00,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:00,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:00,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:08:00,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:00,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:08:00,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:00,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:00,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:00,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:00,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:00,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:00,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-28 18:08:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:00,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:00,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:00,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:08:00,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:00,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:08:00,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:00,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:00,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:00,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:00,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:00,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:00,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-28 18:08:00,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:00,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:00,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:00,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:08:00,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:00,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:08:00,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:00,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:00,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:00,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:00,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:00,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:00,903 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-28 18:08:00,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1171860624] [2020-10-28 18:08:00,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:08:00,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-28 18:08:00,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519234725] [2020-10-28 18:08:00,904 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 18:08:00,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:08:00,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 18:08:00,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-28 18:08:00,905 INFO L87 Difference]: Start difference. First operand 1664 states and 2130 transitions. Second operand 13 states. [2020-10-28 18:08:03,143 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-28 18:08:03,462 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-28 18:08:04,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:08:04,460 INFO L93 Difference]: Finished difference Result 2955 states and 3826 transitions. [2020-10-28 18:08:04,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 18:08:04,461 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 142 [2020-10-28 18:08:04,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:08:04,469 INFO L225 Difference]: With dead ends: 2955 [2020-10-28 18:08:04,470 INFO L226 Difference]: Without dead ends: 1718 [2020-10-28 18:08:04,472 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-28 18:08:04,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2020-10-28 18:08:04,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 1718. [2020-10-28 18:08:04,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1718 states. [2020-10-28 18:08:04,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1718 states to 1718 states and 2175 transitions. [2020-10-28 18:08:04,736 INFO L78 Accepts]: Start accepts. Automaton has 1718 states and 2175 transitions. Word has length 142 [2020-10-28 18:08:04,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:08:04,737 INFO L481 AbstractCegarLoop]: Abstraction has 1718 states and 2175 transitions. [2020-10-28 18:08:04,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-28 18:08:04,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1718 states and 2175 transitions. [2020-10-28 18:08:04,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-28 18:08:04,739 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:08:04,740 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:08:04,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-28 18:08:04,740 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:08:04,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:08:04,740 INFO L82 PathProgramCache]: Analyzing trace with hash -272282325, now seen corresponding path program 1 times [2020-10-28 18:08:04,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:08:04,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1342323701] [2020-10-28 18:08:04,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:08:04,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:04,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:04,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:09,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:09,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-28 18:08:09,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 18:08:09,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4323 [2020-10-28 18:08:09,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:09,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:09,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 18:08:09,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-28 18:08:09,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-10-28 18:08:09,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:09,388 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:08:09,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:08:09,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:09,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:09,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:09,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:08:09,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:09,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:08:09,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:09,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:09,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:09,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:09,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:09,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:09,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:08:09,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:09,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:09,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:09,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-28 18:08:09,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:09,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:08:09,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:09,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:09,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:08:09,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:09,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 18:08:09,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:09,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 18:08:09,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:09,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:09,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:09,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:08:09,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:09,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:08:09,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:09,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:09,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:08:09,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:09,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:08:09,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:09,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 18:08:09,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:09,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:09,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:09,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:08:09,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:09,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:08:09,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:09,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:09,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:08:09,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:09,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 18:08:09,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:09,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:08:09,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:09,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:09,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:09,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:08:09,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:09,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:08:09,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:09,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:09,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:09,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:09,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:09,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:09,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 18:08:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:09,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:09,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:09,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 18:08:09,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:09,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 18:08:09,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:09,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:09,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:08:09,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:09,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 18:08:09,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:09,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:08:09,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:09,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:09,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:09,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:08:09,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:09,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:08:09,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:09,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:09,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:09,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:09,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:09,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:09,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 18:08:09,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:09,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:09,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:09,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:08:09,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:09,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-28 18:08:09,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:09,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:09,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 18:08:09,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 18:08:09,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 18:08:09,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:09,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:08:09,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:09,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:09,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:09,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:08:09,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:09,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:08:09,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:09,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:09,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 18:08:09,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 18:08:09,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 18:08:09,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:09,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-28 18:08:09,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:09,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:09,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:09,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 18:08:09,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:09,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:08:09,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:09,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:09,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:08:09,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:09,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-28 18:08:09,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:09,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:08:09,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:09,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:09,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:09,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:08:09,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:09,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 18:08:09,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:09,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:09,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:09,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:09,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:09,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:09,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 18:08:09,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:09,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:09,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:09,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:08:09,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:09,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:08:09,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:09,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:09,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:09,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:09,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:09,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:09,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-28 18:08:09,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:09,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:09,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:09,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 18:08:09,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:09,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 18:08:09,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:09,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:09,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 18:08:09,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-28 18:08:09,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 18:08:09,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:09,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 18:08:09,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:09,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:09,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:09,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:08:09,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:09,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:08:09,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:09,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:09,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:09,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:09,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:09,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:09,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 18:08:09,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:09,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:09,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:09,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:08:09,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:09,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:08:09,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:09,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:09,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:09,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:09,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:09,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:09,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 18:08:09,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:09,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:09,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:09,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:08:09,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:09,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:08:09,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:09,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:09,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:09,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:09,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:09,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:09,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 18:08:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:09,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:09,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:09,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:08:09,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:09,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:08:09,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:09,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:09,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:09,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:09,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:09,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:09,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-28 18:08:09,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:09,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:09,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:09,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:08:09,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:09,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 18:08:09,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:09,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:09,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:08:09,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:09,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:08:09,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:09,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-28 18:08:09,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:09,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:09,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:09,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:08:09,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:09,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:08:09,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:09,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:09,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:08:09,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:09,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 18:08:09,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:10,023 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-28 18:08:10,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1342323701] [2020-10-28 18:08:10,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:08:10,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-28 18:08:10,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306511176] [2020-10-28 18:08:10,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-28 18:08:10,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:08:10,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-28 18:08:10,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2020-10-28 18:08:10,026 INFO L87 Difference]: Start difference. First operand 1718 states and 2175 transitions. Second operand 19 states. [2020-10-28 18:08:10,400 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-28 18:08:10,741 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-28 18:08:11,111 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-28 18:08:12,749 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-28 18:08:13,133 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-28 18:08:13,338 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-28 18:08:14,270 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-28 18:08:14,650 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-28 18:08:14,977 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-28 18:08:15,790 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-28 18:08:16,995 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-28 18:08:17,841 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-28 18:08:18,313 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-28 18:08:18,636 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-28 18:08:18,955 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-28 18:08:19,286 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-28 18:08:22,865 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-28 18:08:23,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:08:23,941 INFO L93 Difference]: Finished difference Result 4050 states and 5127 transitions. [2020-10-28 18:08:23,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-28 18:08:23,942 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 147 [2020-10-28 18:08:23,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:08:23,958 INFO L225 Difference]: With dead ends: 4050 [2020-10-28 18:08:23,958 INFO L226 Difference]: Without dead ends: 2723 [2020-10-28 18:08:23,962 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 707 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=614, Invalid=2248, Unknown=0, NotChecked=0, Total=2862 [2020-10-28 18:08:23,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2723 states. [2020-10-28 18:08:24,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2723 to 1755. [2020-10-28 18:08:24,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1755 states. [2020-10-28 18:08:24,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1755 states to 1755 states and 2206 transitions. [2020-10-28 18:08:24,287 INFO L78 Accepts]: Start accepts. Automaton has 1755 states and 2206 transitions. Word has length 147 [2020-10-28 18:08:24,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:08:24,287 INFO L481 AbstractCegarLoop]: Abstraction has 1755 states and 2206 transitions. [2020-10-28 18:08:24,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-28 18:08:24,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1755 states and 2206 transitions. [2020-10-28 18:08:24,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-28 18:08:24,289 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:08:24,290 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:08:24,290 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-28 18:08:24,290 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:08:24,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:08:24,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1545941531, now seen corresponding path program 1 times [2020-10-28 18:08:24,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:08:24,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [919459529] [2020-10-28 18:08:24,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:08:24,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:24,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:24,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:25,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:25,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-28 18:08:25,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 18:08:25,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 761 [2020-10-28 18:08:25,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:25,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:25,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:08:25,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-28 18:08:25,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-28 18:08:25,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:25,376 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 18:08:25,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:08:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:25,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:25,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:25,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:08:25,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:25,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:08:25,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:25,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:25,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:25,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:25,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:25,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:25,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 18:08:25,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:25,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:25,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:25,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-28 18:08:25,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:25,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 18:08:25,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:25,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:25,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:25,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:25,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:25,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:25,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 18:08:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:25,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:25,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:25,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:08:25,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:25,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:08:25,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:25,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:25,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:25,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:25,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:25,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:25,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 18:08:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:25,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:25,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:25,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 18:08:25,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:25,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 18:08:25,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:25,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:25,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:25,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:25,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:25,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:25,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:08:25,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:25,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:25,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:25,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:08:25,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:25,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:08:25,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:25,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:25,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:25,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:25,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:25,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:25,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 18:08:25,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:25,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:25,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:25,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 18:08:25,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:25,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 18:08:25,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:25,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:25,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 18:08:25,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:25,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 18:08:25,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:25,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:08:25,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:25,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:25,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:25,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:08:25,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:25,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:08:25,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:25,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:25,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:25,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:25,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:25,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:25,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 18:08:25,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:25,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:25,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:25,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 18:08:25,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:25,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 18:08:25,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:25,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:25,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:08:25,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:25,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 18:08:25,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:25,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:08:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:25,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:25,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:25,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:08:25,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:25,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:08:25,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:25,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:25,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:25,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:25,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:25,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:25,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-28 18:08:25,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:25,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:25,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:25,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 18:08:25,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:25,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 18:08:25,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:25,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:25,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:08:25,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:25,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-28 18:08:25,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:25,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 18:08:25,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:25,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:25,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:25,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:08:25,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:25,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:08:25,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:25,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:25,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:25,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:25,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:25,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:25,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 18:08:25,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:25,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:25,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:25,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:08:25,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:25,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:08:25,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:25,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:25,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:25,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:25,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:25,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:25,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-28 18:08:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:25,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:25,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:25,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-28 18:08:25,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:25,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 18:08:25,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:25,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:25,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:08:25,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-28 18:08:25,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 18:08:25,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:25,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 18:08:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:25,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:25,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:25,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:08:25,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:25,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:08:25,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:25,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:25,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:25,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:25,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:25,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:25,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 18:08:25,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:25,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:25,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:25,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:08:25,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:25,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:08:25,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:25,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:25,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:25,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:25,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:25,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:25,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 18:08:25,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:25,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:25,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:25,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:08:25,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:25,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:08:25,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:25,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:25,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:25,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:25,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:25,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:25,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 18:08:25,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:25,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:25,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:25,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:08:25,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:25,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:08:25,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:25,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:25,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:25,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:25,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:25,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:25,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 18:08:25,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:25,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:25,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:25,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 18:08:25,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:25,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 18:08:25,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:25,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:25,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:25,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:25,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:25,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:25,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-28 18:08:25,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:08:25,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:08:25,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:08:25,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 18:08:25,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:08:25,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 18:08:25,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:08:25,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:08:25,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:08:25,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:08:25,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:08:25,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:08:25,812 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-28 18:08:25,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [919459529] [2020-10-28 18:08:25,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:08:25,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-28 18:08:25,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209775661] [2020-10-28 18:08:25,813 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-28 18:08:25,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:08:25,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-28 18:08:25,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-28 18:08:25,814 INFO L87 Difference]: Start difference. First operand 1755 states and 2206 transitions. Second operand 14 states. [2020-10-28 18:08:26,105 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-28 18:08:27,465 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-28 18:08:28,493 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-28 18:08:28,636 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-28 18:08:28,963 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-28 18:08:31,046 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 86