/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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 SingleStatement --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=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:37:16,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:37:16,897 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:37:16,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:37:16,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:37:16,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:37:16,960 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:37:16,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:37:16,966 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:37:16,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:37:16,970 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:37:16,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:37:16,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:37:16,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:37:16,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:37:16,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:37:16,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:37:16,984 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:37:16,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:37:16,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:37:16,996 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:37:16,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:37:16,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:37:17,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:37:17,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:37:17,006 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:37:17,006 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:37:17,009 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:37:17,010 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:37:17,011 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:37:17,011 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:37:17,012 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:37:17,013 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:37:17,014 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:37:17,015 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:37:17,015 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:37:17,016 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:37:17,016 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:37:17,016 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:37:17,018 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:37:17,018 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:37:17,019 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 [2020-09-25 04:37:17,046 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:37:17,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:37:17,048 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:37:17,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:37:17,048 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:37:17,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:37:17,048 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:37:17,049 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:37:17,049 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:37:17,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:37:17,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:37:17,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:37:17,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:37:17,050 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:37:17,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:37:17,050 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:37:17,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:37:17,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:37:17,051 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:37:17,051 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:37:17,051 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:37:17,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:37:17,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:37:17,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:37:17,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:37:17,052 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:37:17,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:37:17,053 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:37:17,053 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:37:17,053 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> SingleStatement 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=0.2;log-additional-information=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=0.2;log-additional-information=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=0.2;log-additional-information=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=0.2;log-additional-information=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=0.2;log-additional-information=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=0.2;log-additional-information=true; [2020-09-25 04:37:17,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:37:17,533 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:37:17,538 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:37:17,540 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:37:17,540 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:37:17,541 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c [2020-09-25 04:37:17,631 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4359dc8bb/bac95533b86c41129622ee209a939fe4/FLAG138af6388 [2020-09-25 04:37:18,287 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:37:18,288 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c [2020-09-25 04:37:18,302 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4359dc8bb/bac95533b86c41129622ee209a939fe4/FLAG138af6388 [2020-09-25 04:37:18,550 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4359dc8bb/bac95533b86c41129622ee209a939fe4 [2020-09-25 04:37:18,565 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:37:18,571 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:37:18,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:37:18,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:37:18,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:37:18,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:37:18" (1/1) ... [2020-09-25 04:37:18,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@387f035d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:37:18, skipping insertion in model container [2020-09-25 04:37:18,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:37:18" (1/1) ... [2020-09-25 04:37:18,591 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:37:18,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:37:19,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:37:19,050 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:37:19,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:37:19,260 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:37:19,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:37:19 WrapperNode [2020-09-25 04:37:19,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:37:19,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:37:19,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:37:19,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:37:19,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:37:19" (1/1) ... [2020-09-25 04:37:19,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:37:19" (1/1) ... [2020-09-25 04:37:19,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:37:19" (1/1) ... [2020-09-25 04:37:19,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:37:19" (1/1) ... [2020-09-25 04:37:19,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:37:19" (1/1) ... [2020-09-25 04:37:19,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:37:19" (1/1) ... [2020-09-25 04:37:19,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:37:19" (1/1) ... [2020-09-25 04:37:19,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:37:19,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:37:19,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:37:19,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:37:19,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:37:19" (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 [2020-09-25 04:37:19,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:37:19,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:37:19,438 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 04:37:19,438 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side1_failed_history [2020-09-25 04:37:19,439 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2020-09-25 04:37:19,439 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side2_failed_history [2020-09-25 04:37:19,440 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2020-09-25 04:37:19,441 INFO L138 BoogieDeclarations]: Found implementation of procedure write_active_side_history [2020-09-25 04:37:19,441 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2020-09-25 04:37:19,441 INFO L138 BoogieDeclarations]: Found implementation of procedure write_manual_selection_history [2020-09-25 04:37:19,442 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2020-09-25 04:37:19,442 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-09-25 04:37:19,442 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2020-09-25 04:37:19,442 INFO L138 BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period [2020-09-25 04:37:19,442 INFO L138 BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period [2020-09-25 04:37:19,443 INFO L138 BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period [2020-09-25 04:37:19,443 INFO L138 BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period [2020-09-25 04:37:19,444 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-09-25 04:37:19,444 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:37:19,444 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-09-25 04:37:19,444 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:37:19,445 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 04:37:19,445 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-25 04:37:19,445 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-09-25 04:37:19,446 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-09-25 04:37:19,446 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-09-25 04:37:19,446 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 04:37:19,447 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 04:37:19,447 INFO L130 BoogieDeclarations]: Found specification of procedure write_side1_failed_history [2020-09-25 04:37:19,447 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2020-09-25 04:37:19,447 INFO L130 BoogieDeclarations]: Found specification of procedure write_side2_failed_history [2020-09-25 04:37:19,447 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2020-09-25 04:37:19,447 INFO L130 BoogieDeclarations]: Found specification of procedure write_active_side_history [2020-09-25 04:37:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2020-09-25 04:37:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure write_manual_selection_history [2020-09-25 04:37:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2020-09-25 04:37:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-09-25 04:37:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2020-09-25 04:37:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period [2020-09-25 04:37:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period [2020-09-25 04:37:19,449 INFO L130 BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period [2020-09-25 04:37:19,449 INFO L130 BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period [2020-09-25 04:37:19,449 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-09-25 04:37:19,449 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:37:19,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:37:19,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:37:20,545 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:37:20,545 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 04:37:20,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:37:20 BoogieIcfgContainer [2020-09-25 04:37:20,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:37:20,557 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:37:20,557 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:37:20,561 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:37:20,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:37:18" (1/3) ... [2020-09-25 04:37:20,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4648025c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:37:20, skipping insertion in model container [2020-09-25 04:37:20,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:37:19" (2/3) ... [2020-09-25 04:37:20,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4648025c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:37:20, skipping insertion in model container [2020-09-25 04:37:20,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:37:20" (3/3) ... [2020-09-25 04:37:20,566 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c [2020-09-25 04:37:20,578 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:37:20,590 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:37:20,613 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:37:20,650 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:37:20,651 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:37:20,651 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:37:20,651 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:37:20,651 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:37:20,651 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:37:20,652 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:37:20,652 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:37:20,687 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states. [2020-09-25 04:37:20,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-09-25 04:37:20,712 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:37:20,714 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:37:20,715 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:37:20,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:37:20,726 INFO L82 PathProgramCache]: Analyzing trace with hash -182402980, now seen corresponding path program 1 times [2020-09-25 04:37:20,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:37:20,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [631809269] [2020-09-25 04:37:20,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:37:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:21,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:21,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:21,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:21,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:21,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:22,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:22,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:23,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:25,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:25,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-25 04:37:25,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 04:37:25,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4106 [2020-09-25 04:37:25,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:25,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:25,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:25,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-09-25 04:37:25,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:25,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 04:37:25,471 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-25 04:37:25,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:37:25,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:25,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:25,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:25,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 04:37:25,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:25,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 04:37:25,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:25,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:25,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:25,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:25,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:25,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:25,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-25 04:37:25,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:25,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:25,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:25,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:37:25,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:25,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:37:25,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:25,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:25,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:25,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:25,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:25,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:25,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:37:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:25,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:25,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:25,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:37:25,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:25,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:37:25,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:25,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:25,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:25,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:25,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:25,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:25,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 04:37:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:25,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:25,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:25,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 04:37:25,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:25,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 04:37:25,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:25,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:25,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:25,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:25,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:25,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:25,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:37:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:25,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:25,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:25,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:37:25,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:25,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:37:25,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:25,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:25,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:25,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:25,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:25,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:25,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 04:37:25,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:25,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:25,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:25,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:25,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:25,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 04:37:25,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:37:25,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 04:37:25,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:25,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:25,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:25,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 04:37:25,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:25,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:25,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 04:37:25,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:25,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:25,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:25,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:37:25,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:25,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 04:37:25,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:25,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:25,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:25,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:25,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:25,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:25,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 04:37:25,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:25,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:25,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:25,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:26,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:26,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:26,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 04:37:26,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:37:26,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 04:37:26,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:26,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:26,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:26,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 04:37:26,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:26,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:26,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 04:37:26,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:26,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:26,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:26,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:37:26,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:26,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:37:26,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:26,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:26,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:26,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:26,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:26,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:26,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:37:26,193 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [631809269] [2020-09-25 04:37:26,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:37:26,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:37:26,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495353670] [2020-09-25 04:37:26,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:37:26,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:37:26,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:37:26,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:37:26,230 INFO L87 Difference]: Start difference. First operand 574 states. Second operand 9 states. [2020-09-25 04:37:29,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:37:29,070 INFO L93 Difference]: Finished difference Result 1013 states and 1262 transitions. [2020-09-25 04:37:29,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 04:37:29,072 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 228 [2020-09-25 04:37:29,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:37:29,094 INFO L225 Difference]: With dead ends: 1013 [2020-09-25 04:37:29,094 INFO L226 Difference]: Without dead ends: 562 [2020-09-25 04:37:29,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=131, Invalid=249, Unknown=0, NotChecked=0, Total=380 [2020-09-25 04:37:29,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2020-09-25 04:37:29,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2020-09-25 04:37:29,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2020-09-25 04:37:29,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 667 transitions. [2020-09-25 04:37:29,222 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 667 transitions. Word has length 228 [2020-09-25 04:37:29,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:37:29,225 INFO L479 AbstractCegarLoop]: Abstraction has 562 states and 667 transitions. [2020-09-25 04:37:29,226 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:37:29,226 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 667 transitions. [2020-09-25 04:37:29,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-09-25 04:37:29,233 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:37:29,233 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:37:29,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:37:29,234 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:37:29,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:37:29,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1704223652, now seen corresponding path program 1 times [2020-09-25 04:37:29,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:37:29,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [839559148] [2020-09-25 04:37:29,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:37:29,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:29,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:29,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:31,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:31,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-25 04:37:31,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:37:31,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2213 [2020-09-25 04:37:31,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:31,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:31,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:37:31,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 245 [2020-09-25 04:37:31,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:37:31,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:31,789 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-25 04:37:31,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:37:31,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:31,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:31,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:31,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 04:37:31,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:31,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 04:37:31,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:31,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:31,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:31,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:31,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:31,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:31,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-25 04:37:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:31,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:31,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:31,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:37:31,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:31,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:37:31,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:31,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:31,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:31,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:31,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:31,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:31,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:37:31,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:31,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:31,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:31,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:37:31,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:31,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:37:31,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:31,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:31,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:31,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:31,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:31,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:31,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 04:37:31,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:31,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:31,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:31,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 04:37:31,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:31,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 04:37:31,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:31,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:31,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:31,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:31,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:31,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:31,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:37:31,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:31,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:31,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:31,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:37:31,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:31,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:37:31,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:31,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:31,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:31,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:31,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:31,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:37:32,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 04:37:32,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:32,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:32,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:32,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 04:37:32,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:32,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 04:37:32,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:32,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:32,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:32,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:32,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:32,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:32,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 04:37:32,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:32,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:32,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:32,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:37:32,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:32,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:37:32,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:32,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:32,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:32,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:32,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:32,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:32,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 04:37:32,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:32,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:32,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:32,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 04:37:32,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:32,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 04:37:32,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:32,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:32,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:32,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:32,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:32,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:32,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 04:37:32,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:32,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:32,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:32,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:37:32,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:32,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:37:32,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:32,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:32,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:32,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:32,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:32,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:32,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:37:32,281 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [839559148] [2020-09-25 04:37:32,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:37:32,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 04:37:32,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546750874] [2020-09-25 04:37:32,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 04:37:32,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:37:32,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 04:37:32,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:37:32,286 INFO L87 Difference]: Start difference. First operand 562 states and 667 transitions. Second operand 11 states. [2020-09-25 04:37:34,575 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-09-25 04:37:34,800 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-09-25 04:37:35,872 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-25 04:37:36,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:37:36,615 INFO L93 Difference]: Finished difference Result 990 states and 1194 transitions. [2020-09-25 04:37:36,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 04:37:36,616 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 228 [2020-09-25 04:37:36,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:37:36,625 INFO L225 Difference]: With dead ends: 990 [2020-09-25 04:37:36,625 INFO L226 Difference]: Without dead ends: 569 [2020-09-25 04:37:36,628 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=201, Invalid=399, Unknown=0, NotChecked=0, Total=600 [2020-09-25 04:37:36,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2020-09-25 04:37:36,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 567. [2020-09-25 04:37:36,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 567 states. [2020-09-25 04:37:36,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 671 transitions. [2020-09-25 04:37:36,678 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 671 transitions. Word has length 228 [2020-09-25 04:37:36,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:37:36,679 INFO L479 AbstractCegarLoop]: Abstraction has 567 states and 671 transitions. [2020-09-25 04:37:36,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 04:37:36,680 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 671 transitions. [2020-09-25 04:37:36,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2020-09-25 04:37:36,687 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:37:36,688 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:37:36,688 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:37:36,688 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:37:36,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:37:36,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1715458180, now seen corresponding path program 1 times [2020-09-25 04:37:36,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:37:36,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [327402488] [2020-09-25 04:37:36,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:37:36,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:36,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:36,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:40,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:40,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:41,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:41,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 338 [2020-09-25 04:37:41,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:37:41,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-25 04:37:41,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:41,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:41,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:37:41,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 184 [2020-09-25 04:37:41,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-25 04:37:41,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:41,991 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-25 04:37:41,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:37:41,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:42,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:42,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:42,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 04:37:42,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:42,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 04:37:42,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:42,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:42,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:42,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:42,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:42,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:37:42,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-25 04:37:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:42,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:42,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:42,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:37:42,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:42,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:37:42,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:42,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:42,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:42,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:42,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:42,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:42,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:37:42,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:42,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:42,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:42,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:37:42,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:42,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:37:42,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:42,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:42,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:42,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:42,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:42,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:42,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 04:37:42,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:42,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:42,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:42,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 04:37:42,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:42,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 04:37:42,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:42,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:42,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:42,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:42,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:42,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:42,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:37:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:42,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:42,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:42,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:37:42,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:42,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:37:42,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:42,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:42,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:42,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:42,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:42,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:42,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 04:37:42,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:42,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:42,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:42,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 04:37:42,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:42,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 04:37:42,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:42,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:42,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:37:42,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:42,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 04:37:42,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:42,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 04:37:42,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:42,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:42,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:42,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:37:42,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:42,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:37:42,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:42,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:42,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:42,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:42,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:42,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:42,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 04:37:42,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:42,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:42,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:42,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 04:37:42,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:42,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 04:37:42,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:42,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:42,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:37:42,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:42,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 04:37:42,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:42,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 04:37:42,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:42,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:42,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:42,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:37:42,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:42,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:37:42,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:42,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:42,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:42,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:42,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:42,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:42,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-25 04:37:42,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:42,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:42,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:42,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 04:37:42,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:42,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 04:37:42,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:42,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:42,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:37:42,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:42,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 04:37:42,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:42,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:37:42,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:42,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:42,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:42,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:37:42,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:42,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:37:42,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:42,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:42,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:42,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:42,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:42,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:42,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 04:37:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:42,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:42,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:42,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:37:42,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:42,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:37:42,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:42,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:42,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:42,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:42,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:42,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:42,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2020-09-25 04:37:42,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:42,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:42,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:42,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:37:42,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:42,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:37:42,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:42,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:42,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:42,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 04:37:42,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:42,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:42,733 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 04:37:42,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [327402488] [2020-09-25 04:37:42,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:37:42,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 04:37:42,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186571838] [2020-09-25 04:37:42,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 04:37:42,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:37:42,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 04:37:42,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-25 04:37:42,738 INFO L87 Difference]: Start difference. First operand 567 states and 671 transitions. Second operand 12 states. [2020-09-25 04:37:44,519 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-25 04:37:45,629 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-09-25 04:37:48,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:37:48,536 INFO L93 Difference]: Finished difference Result 1357 states and 1635 transitions. [2020-09-25 04:37:48,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-25 04:37:48,539 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 301 [2020-09-25 04:37:48,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:37:48,545 INFO L225 Difference]: With dead ends: 1357 [2020-09-25 04:37:48,546 INFO L226 Difference]: Without dead ends: 931 [2020-09-25 04:37:48,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=347, Invalid=843, Unknown=0, NotChecked=0, Total=1190 [2020-09-25 04:37:48,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2020-09-25 04:37:48,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 892. [2020-09-25 04:37:48,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 892 states. [2020-09-25 04:37:48,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1074 transitions. [2020-09-25 04:37:48,639 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1074 transitions. Word has length 301 [2020-09-25 04:37:48,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:37:48,640 INFO L479 AbstractCegarLoop]: Abstraction has 892 states and 1074 transitions. [2020-09-25 04:37:48,640 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 04:37:48,640 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1074 transitions. [2020-09-25 04:37:48,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-09-25 04:37:48,647 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:37:48,647 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:37:48,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:37:48,648 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:37:48,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:37:48,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1362059029, now seen corresponding path program 1 times [2020-09-25 04:37:48,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:37:48,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1046792602] [2020-09-25 04:37:48,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:37:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:48,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:48,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:52,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:52,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:53,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:53,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 339 [2020-09-25 04:37:53,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:37:53,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-25 04:37:53,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:53,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:53,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:37:53,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 221 [2020-09-25 04:37:53,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 04:37:53,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:53,966 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-25 04:37:53,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:37:53,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:53,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:54,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:54,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 04:37:54,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:54,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 04:37:54,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:54,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:54,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:54,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:54,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:54,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:37:54,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-25 04:37:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:54,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:54,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:54,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:37:54,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:54,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:37:54,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:54,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:54,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:54,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:54,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:54,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:54,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:37:54,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:54,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:54,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:54,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:37:54,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:54,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:37:54,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:54,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:54,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:54,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:54,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:54,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:54,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 04:37:54,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:54,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:54,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:54,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 04:37:54,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:54,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 04:37:54,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:54,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:54,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:54,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:54,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:54,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:54,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:37:54,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:54,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:54,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:54,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:37:54,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:54,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:37:54,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:54,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:54,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:54,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:54,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:54,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:54,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 04:37:54,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:54,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:54,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:54,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 04:37:54,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:54,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 04:37:54,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:54,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:54,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:54,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:54,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:54,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:54,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 04:37:54,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:54,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:54,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:54,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:37:54,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:54,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:37:54,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:54,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:54,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:54,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:54,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:54,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:54,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 04:37:54,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:54,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:54,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:54,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 04:37:54,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:54,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 04:37:54,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:54,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:54,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:37:54,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:54,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 04:37:54,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:54,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 04:37:54,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:54,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:54,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:54,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:37:54,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:54,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:37:54,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:54,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:54,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:54,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:54,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:54,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:54,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-25 04:37:54,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:54,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:54,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:54,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 04:37:54,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:54,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 04:37:54,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:54,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:54,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:37:54,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:54,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 04:37:54,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:54,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:37:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:54,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:54,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:54,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:37:54,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:54,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:37:54,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:54,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:54,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:54,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:54,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:54,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:54,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 04:37:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:54,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:54,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:54,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:37:54,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:54,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:37:54,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:54,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:54,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:54,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:37:54,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:54,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:54,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2020-09-25 04:37:54,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:37:54,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:37:54,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:37:54,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:37:54,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:37:54,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:37:54,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:37:54,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:37:54,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:37:54,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 04:37:54,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:37:54,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:37:54,673 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 04:37:54,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1046792602] [2020-09-25 04:37:54,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:37:54,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 04:37:54,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712568238] [2020-09-25 04:37:54,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 04:37:54,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:37:54,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 04:37:54,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-25 04:37:54,678 INFO L87 Difference]: Start difference. First operand 892 states and 1074 transitions. Second operand 12 states. [2020-09-25 04:37:54,814 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-09-25 04:37:57,122 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-25 04:38:00,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:38:00,670 INFO L93 Difference]: Finished difference Result 2268 states and 2774 transitions. [2020-09-25 04:38:00,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-25 04:38:00,671 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 302 [2020-09-25 04:38:00,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:38:00,683 INFO L225 Difference]: With dead ends: 2268 [2020-09-25 04:38:00,683 INFO L226 Difference]: Without dead ends: 1517 [2020-09-25 04:38:00,688 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=348, Invalid=842, Unknown=0, NotChecked=0, Total=1190 [2020-09-25 04:38:00,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2020-09-25 04:38:00,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 1497. [2020-09-25 04:38:00,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1497 states. [2020-09-25 04:38:00,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 1828 transitions. [2020-09-25 04:38:00,845 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 1828 transitions. Word has length 302 [2020-09-25 04:38:00,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:38:00,846 INFO L479 AbstractCegarLoop]: Abstraction has 1497 states and 1828 transitions. [2020-09-25 04:38:00,846 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 04:38:00,846 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 1828 transitions. [2020-09-25 04:38:00,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-09-25 04:38:00,857 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:38:00,857 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:38:00,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:38:00,858 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:38:00,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:38:00,858 INFO L82 PathProgramCache]: Analyzing trace with hash 58144629, now seen corresponding path program 1 times [2020-09-25 04:38:00,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:38:00,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2012236054] [2020-09-25 04:38:00,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:38:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:38:00,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:38:01,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:38:04,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:38:04,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:38:05,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:38:05,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 339 [2020-09-25 04:38:05,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:38:05,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-25 04:38:05,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:38:05,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:38:05,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:38:05,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-09-25 04:38:05,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 04:38:05,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0