/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:05:24,252 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:05:24,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:05:24,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:05:24,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:05:24,311 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:05:24,313 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:05:24,317 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:05:24,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:05:24,325 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:05:24,327 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:05:24,328 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:05:24,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:05:24,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:05:24,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:05:24,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:05:24,339 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:05:24,340 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:05:24,342 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:05:24,350 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:05:24,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:05:24,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:05:24,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:05:24,356 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:05:24,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:05:24,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:05:24,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:05:24,377 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:05:24,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:05:24,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:05:24,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:05:24,383 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:05:24,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:05:24,387 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:05:24,389 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:05:24,389 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:05:24,390 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:05:24,390 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:05:24,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:05:24,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:05:24,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:05:24,394 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 13:05:24,439 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:05:24,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:05:24,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:05:24,442 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:05:24,442 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:05:24,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:05:24,443 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:05:24,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:05:24,443 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:05:24,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:05:24,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:05:24,444 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:05:24,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:05:24,445 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:05:24,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:05:24,445 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:05:24,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:05:24,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:05:24,446 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:05:24,446 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:05:24,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:05:24,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:05:24,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:05:24,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:05:24,447 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:05:24,448 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:05:24,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:05:24,448 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:05:24,448 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:05:24,448 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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:05:24,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:05:24,925 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:05:24,929 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:05:24,931 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:05:24,931 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:05:24,933 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product36.cil.c [2020-09-25 13:05:25,019 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d5fad88bb/9df1fbef4ea6451c9f256e525bdcf353/FLAG3cea9611c [2020-09-25 13:05:25,615 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:05:25,616 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product36.cil.c [2020-09-25 13:05:25,631 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d5fad88bb/9df1fbef4ea6451c9f256e525bdcf353/FLAG3cea9611c [2020-09-25 13:05:25,914 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d5fad88bb/9df1fbef4ea6451c9f256e525bdcf353 [2020-09-25 13:05:25,927 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:05:25,932 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:05:25,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:05:25,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:05:25,940 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:05:25,941 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:05:25" (1/1) ... [2020-09-25 13:05:25,945 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:25, skipping insertion in model container [2020-09-25 13:05:25,946 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:05:25" (1/1) ... [2020-09-25 13:05:25,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:05:26,030 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:05:26,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:05:26,512 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:05:26,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:05:26,650 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:05:26,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:26 WrapperNode [2020-09-25 13:05:26,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:05:26,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:05:26,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:05:26,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:05:26,670 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:26" (1/1) ... [2020-09-25 13:05:26,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:26" (1/1) ... [2020-09-25 13:05:26,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:26" (1/1) ... [2020-09-25 13:05:26,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:26" (1/1) ... [2020-09-25 13:05:26,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:26" (1/1) ... [2020-09-25 13:05:26,763 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:26" (1/1) ... [2020-09-25 13:05:26,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:26" (1/1) ... [2020-09-25 13:05:26,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:05:26,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:05:26,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:05:26,799 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:05:26,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:26" (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 13:05:26,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:05:26,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:05:26,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:05:26,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:05:26,902 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:05:26,902 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 13:05:26,902 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:05:26,903 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:05:26,903 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:05:26,903 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:05:26,903 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:05:26,903 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:05:26,904 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 13:05:26,904 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 13:05:26,904 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 13:05:26,904 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:05:26,905 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:05:26,905 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:05:26,905 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:05:26,905 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:05:26,906 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:05:26,906 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 13:05:26,906 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:05:26,906 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:05:26,906 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:05:26,907 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:05:26,907 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:05:26,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:05:26,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:05:26,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:05:26,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:05:26,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:05:26,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:05:26,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 13:05:26,908 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:05:26,908 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:05:26,909 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:05:26,909 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:05:26,909 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:05:26,909 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:05:26,909 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:05:26,909 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:05:26,910 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:05:26,910 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:05:26,910 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:05:26,910 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:05:26,910 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 13:05:26,910 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:05:26,911 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:05:26,911 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:05:26,911 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:05:26,911 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:05:26,911 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 13:05:26,912 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 13:05:26,912 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 13:05:26,912 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:05:26,912 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 13:05:26,912 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 13:05:26,912 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:05:26,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:05:26,913 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:05:26,913 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:05:26,913 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:05:26,913 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:05:26,913 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:05:26,914 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:05:26,914 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:05:26,914 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:05:26,914 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:05:26,914 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:05:26,914 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:05:26,915 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:05:26,915 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:05:26,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:05:26,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:05:26,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:05:26,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:05:26,916 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:05:26,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:05:26,916 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:05:26,916 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:05:26,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:05:26,916 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:05:26,917 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:05:26,917 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:05:26,917 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:05:26,917 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:05:26,917 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:05:26,917 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:05:26,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:05:26,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:05:26,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:05:28,136 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:05:28,137 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:05:28,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:05:28 BoogieIcfgContainer [2020-09-25 13:05:28,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:05:28,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:05:28,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:05:28,152 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:05:28,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:05:25" (1/3) ... [2020-09-25 13:05:28,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38c581cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:05:28, skipping insertion in model container [2020-09-25 13:05:28,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:26" (2/3) ... [2020-09-25 13:05:28,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38c581cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:05:28, skipping insertion in model container [2020-09-25 13:05:28,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:05:28" (3/3) ... [2020-09-25 13:05:28,157 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product36.cil.c [2020-09-25 13:05:28,170 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:05:28,182 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:05:28,206 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:05:28,236 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:05:28,236 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:05:28,237 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:05:28,237 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:05:28,237 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:05:28,237 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:05:28,237 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:05:28,237 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:05:28,268 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states. [2020-09-25 13:05:28,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 13:05:28,288 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:05:28,290 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] [2020-09-25 13:05:28,291 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:05:28,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:05:28,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1033241294, now seen corresponding path program 1 times [2020-09-25 13:05:28,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:05:28,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1098631680] [2020-09-25 13:05:28,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:05:28,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:28,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:29,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:30,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:31,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:33,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 13:05:33,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:05:33,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-09-25 13:05:33,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:33,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:33,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:05:33,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 13:05:33,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 13:05:33,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 13:05:34,231 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:05:34,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:05:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:34,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:34,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:34,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:05:34,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:34,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 331 [2020-09-25 13:05:34,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:34,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:34,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:34,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:34,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 13:05:34,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:05:34,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:05:34,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:34,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:34,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:34,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:34,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:34,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 13:05:34,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:34,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:34,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:34,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:34,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:34,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:05:34,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:05:34,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:34,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:34,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:34,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:34,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:34,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:05:34,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:34,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:34,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:34,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:34,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:34,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:05:34,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:05:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:34,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:34,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:34,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:34,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:34,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 13:05:34,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:34,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:34,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:34,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:34,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:05:34,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:05:34,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:05:34,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:34,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:34,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:34,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:34,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:34,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:05:34,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:34,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:34,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:34,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:34,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:34,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:05:34,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:05:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:34,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:34,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:34,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:34,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:34,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:05:34,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:34,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:34,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:05:34,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:05:34,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:05:34,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:05:34,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 13:05:34,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:34,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:34,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:34,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:34,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:34,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:05:34,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:34,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:34,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:05:34,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:05:34,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:05:34,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:05:34,964 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 13:05:34,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1098631680] [2020-09-25 13:05:34,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:05:34,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:05:34,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167522817] [2020-09-25 13:05:34,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:05:34,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:05:35,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:05:35,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:05:35,014 INFO L87 Difference]: Start difference. First operand 297 states. Second operand 4 states. [2020-09-25 13:05:35,909 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:37,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:05:37,869 INFO L93 Difference]: Finished difference Result 608 states and 738 transitions. [2020-09-25 13:05:37,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:05:37,871 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 13:05:37,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:05:37,902 INFO L225 Difference]: With dead ends: 608 [2020-09-25 13:05:37,903 INFO L226 Difference]: Without dead ends: 428 [2020-09-25 13:05:37,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:05:37,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2020-09-25 13:05:38,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 354. [2020-09-25 13:05:38,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2020-09-25 13:05:38,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 391 transitions. [2020-09-25 13:05:38,051 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 391 transitions. Word has length 142 [2020-09-25 13:05:38,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:05:38,052 INFO L479 AbstractCegarLoop]: Abstraction has 354 states and 391 transitions. [2020-09-25 13:05:38,052 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:05:38,052 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 391 transitions. [2020-09-25 13:05:38,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 13:05:38,059 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:05:38,059 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] [2020-09-25 13:05:38,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:05:38,060 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:05:38,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:05:38,060 INFO L82 PathProgramCache]: Analyzing trace with hash -12455526, now seen corresponding path program 1 times [2020-09-25 13:05:38,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:05:38,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [355121911] [2020-09-25 13:05:38,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:05:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:38,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:38,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:38,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:42,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:43,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:43,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 13:05:43,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:05:43,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 13:05:43,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:43,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:43,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:05:43,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 13:05:43,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-25 13:05:43,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:43,446 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:05:43,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:05:43,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:43,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:43,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:43,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:05:43,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:43,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-09-25 13:05:43,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:43,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:43,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:43,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:43,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 13:05:43,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:43,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:05:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:43,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:43,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:43,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:43,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:43,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:05:43,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:43,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:43,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:43,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:43,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:43,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:05:43,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:05:43,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:43,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:43,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:43,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:43,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:43,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:05:43,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:43,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:43,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:43,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:43,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:43,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:43,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:05:43,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:43,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:43,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:43,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:43,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:43,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:05:43,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:43,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:43,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:43,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:43,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:05:43,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:43,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:05:43,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:43,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:43,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:43,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:43,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:43,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:05:43,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:43,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:43,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:43,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:43,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:43,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:43,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 13:05:43,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:43,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:43,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:43,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:05:43,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:43,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:05:43,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:43,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:43,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:43,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:43,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 13:05:43,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:43,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:05:43,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:43,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:43,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:43,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:43,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:43,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:05:43,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:43,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:43,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:05:43,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:43,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:05:43,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:43,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 13:05:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:43,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:43,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:43,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:43,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:43,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:05:43,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:43,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:43,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:05:43,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:43,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:05:43,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:43,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 13:05:43,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:43,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:43,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:43,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:43,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:43,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:05:43,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:43,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:43,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:05:43,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:05:43,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:05:43,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:43,982 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 13:05:43,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [355121911] [2020-09-25 13:05:43,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:05:43,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 13:05:43,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117413984] [2020-09-25 13:05:43,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:05:43,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:05:43,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:05:43,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:05:43,989 INFO L87 Difference]: Start difference. First operand 354 states and 391 transitions. Second operand 9 states. [2020-09-25 13:05:44,498 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:46,068 WARN L193 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-25 13:05:46,679 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 13:05:47,038 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:47,441 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:05:47,806 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:48,436 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:48,768 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:05:49,189 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:50,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:05:50,377 INFO L93 Difference]: Finished difference Result 1045 states and 1309 transitions. [2020-09-25 13:05:50,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 13:05:50,384 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 151 [2020-09-25 13:05:50,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:05:50,394 INFO L225 Difference]: With dead ends: 1045 [2020-09-25 13:05:50,394 INFO L226 Difference]: Without dead ends: 754 [2020-09-25 13:05:50,398 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2020-09-25 13:05:50,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2020-09-25 13:05:50,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 551. [2020-09-25 13:05:50,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 551 states. [2020-09-25 13:05:50,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 616 transitions. [2020-09-25 13:05:50,527 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 616 transitions. Word has length 151 [2020-09-25 13:05:50,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:05:50,528 INFO L479 AbstractCegarLoop]: Abstraction has 551 states and 616 transitions. [2020-09-25 13:05:50,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:05:50,528 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 616 transitions. [2020-09-25 13:05:50,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 13:05:50,535 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:05:50,537 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] [2020-09-25 13:05:50,537 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:05:50,537 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:05:50,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:05:50,538 INFO L82 PathProgramCache]: Analyzing trace with hash 804799078, now seen corresponding path program 1 times [2020-09-25 13:05:50,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:05:50,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1925756283] [2020-09-25 13:05:50,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:05:50,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:50,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:50,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:51,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:54,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:54,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 13:05:54,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:05:54,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3680 [2020-09-25 13:05:54,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:54,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:54,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 13:05:54,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 13:05:54,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 13:05:54,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:54,661 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:05:54,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:05:54,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:54,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:54,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:54,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:05:54,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:54,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-09-25 13:05:54,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:54,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:54,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:54,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:54,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 13:05:54,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:54,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:05:54,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:55,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:55,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:55,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:55,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:55,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:05:55,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:55,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:55,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:55,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:55,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:55,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:55,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:05:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:55,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:55,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:55,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:55,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:55,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 13:05:55,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:55,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:55,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:55,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:55,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:55,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:55,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:05:55,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:55,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:55,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:55,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:55,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:55,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:05:55,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:55,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:55,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:55,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:55,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:05:55,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:55,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:05:55,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:55,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:55,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:55,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:55,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:55,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:05:55,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:55,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:55,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:55,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:55,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:55,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 13:05:55,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:05:55,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:55,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:55,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:55,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:05:55,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:55,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:05:55,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:55,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:55,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:55,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:55,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:05:55,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:55,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 13:05:55,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:55,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:55,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:55,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:55,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:05:55,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:05:55,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 13:05:55,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:55,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:55,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:05:55,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:05:55,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:05:55,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:55,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 13:05:55,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:55,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:55,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:55,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:55,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:55,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:05:55,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:55,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:55,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:55,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:55,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:05:55,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:55,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 13:05:55,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:55,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:55,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:55,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:55,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:55,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 13:05:55,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:55,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:55,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:05:55,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:55,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:05:55,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:55,299 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 13:05:55,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1925756283] [2020-09-25 13:05:55,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:05:55,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 13:05:55,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445028615] [2020-09-25 13:05:55,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 13:05:55,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:05:55,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 13:05:55,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:05:55,303 INFO L87 Difference]: Start difference. First operand 551 states and 616 transitions. Second operand 11 states. [2020-09-25 13:05:55,799 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:05:57,318 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:57,671 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:05:58,060 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:58,434 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:05:58,770 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:59,434 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:59,741 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:06:00,202 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:06:01,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:06:01,871 INFO L93 Difference]: Finished difference Result 1715 states and 2194 transitions. [2020-09-25 13:06:01,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-25 13:06:01,871 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 166 [2020-09-25 13:06:01,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:06:01,882 INFO L225 Difference]: With dead ends: 1715 [2020-09-25 13:06:01,882 INFO L226 Difference]: Without dead ends: 1274 [2020-09-25 13:06:01,884 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=202, Invalid=500, Unknown=0, NotChecked=0, Total=702 [2020-09-25 13:06:01,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1274 states. [2020-09-25 13:06:02,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1274 to 877. [2020-09-25 13:06:02,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 877 states. [2020-09-25 13:06:02,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1028 transitions. [2020-09-25 13:06:02,012 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1028 transitions. Word has length 166 [2020-09-25 13:06:02,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:06:02,013 INFO L479 AbstractCegarLoop]: Abstraction has 877 states and 1028 transitions. [2020-09-25 13:06:02,013 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 13:06:02,014 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1028 transitions. [2020-09-25 13:06:02,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 13:06:02,018 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:06:02,018 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] [2020-09-25 13:06:02,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:06:02,019 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:06:02,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:06:02,019 INFO L82 PathProgramCache]: Analyzing trace with hash 633475050, now seen corresponding path program 1 times [2020-09-25 13:06:02,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:06:02,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [466509422] [2020-09-25 13:06:02,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:06:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:02,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:02,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:02,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-25 13:06:02,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:02,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 837 [2020-09-25 13:06:02,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:02,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:02,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:06:02,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-09-25 13:06:02,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:06:02,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:03,227 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:06:03,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:06:03,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:03,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:03,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:03,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:06:03,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:03,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 13:06:03,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:03,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:03,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:03,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:03,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:03,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:06:03,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:06:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:03,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:03,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:03,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:03,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:03,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:06:03,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:03,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:03,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:03,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:03,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:03,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:03,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:06:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:03,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:03,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:03,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:03,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:03,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:06:03,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:03,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:03,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:03,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:03,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:03,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:06:03,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:06:03,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:03,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:03,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:03,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:06:03,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:03,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:06:03,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:03,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:03,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:03,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:03,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:03,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:03,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:06:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:03,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:03,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:03,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:03,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:03,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:06:03,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:03,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:03,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:03,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:03,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:03,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:03,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:06:03,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:03,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:03,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:03,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:06:03,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:03,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:06:03,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:03,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:03,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:03,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:03,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:03,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:03,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 13:06:03,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:03,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:03,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:03,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:06:03,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:03,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:06:03,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:03,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:03,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:03,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:03,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:03,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:06:03,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 13:06:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:03,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:03,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:03,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 13:06:03,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:03,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 13:06:03,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:03,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:03,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:06:03,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 13:06:03,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:06:03,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:03,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:06:03,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:03,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:03,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:03,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 13:06:03,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:03,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 13:06:03,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:03,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:03,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:06:03,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:03,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 13:06:03,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:03,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:06:03,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:03,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:03,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:03,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:06:03,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:03,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:06:03,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:03,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:03,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:03,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:03,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:03,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:06:03,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 13:06:03,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:03,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:03,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:03,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:06:03,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:03,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:06:03,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:03,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:03,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:03,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 13:06:03,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:03,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:03,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 13:06:03,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:03,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:03,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:03,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:06:03,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:03,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:06:03,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:03,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:03,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:03,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:06:03,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:03,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:06:03,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 13:06:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:03,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:03,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:03,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:06:03,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:03,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:06:03,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:03,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:03,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:03,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:06:03,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:03,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:06:03,685 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 13:06:03,686 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [466509422] [2020-09-25 13:06:03,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:06:03,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 13:06:03,687 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573606111] [2020-09-25 13:06:03,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 13:06:03,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:06:03,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 13:06:03,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:06:03,688 INFO L87 Difference]: Start difference. First operand 877 states and 1028 transitions. Second operand 11 states. [2020-09-25 13:06:05,150 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:06:05,455 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:06:05,780 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:06:06,088 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:06:06,404 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:06:06,696 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:06:07,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:06:07,930 INFO L93 Difference]: Finished difference Result 2205 states and 2842 transitions. [2020-09-25 13:06:07,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 13:06:07,931 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 194 [2020-09-25 13:06:07,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:06:07,944 INFO L225 Difference]: With dead ends: 2205 [2020-09-25 13:06:07,944 INFO L226 Difference]: Without dead ends: 1438 [2020-09-25 13:06:07,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-25 13:06:07,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2020-09-25 13:06:08,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 909. [2020-09-25 13:06:08,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 909 states. [2020-09-25 13:06:08,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1060 transitions. [2020-09-25 13:06:08,090 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1060 transitions. Word has length 194 [2020-09-25 13:06:08,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:06:08,091 INFO L479 AbstractCegarLoop]: Abstraction has 909 states and 1060 transitions. [2020-09-25 13:06:08,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 13:06:08,091 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1060 transitions. [2020-09-25 13:06:08,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 13:06:08,095 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:06:08,095 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] [2020-09-25 13:06:08,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:06:08,096 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:06:08,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:06:08,096 INFO L82 PathProgramCache]: Analyzing trace with hash -788765814, now seen corresponding path program 1 times [2020-09-25 13:06:08,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:06:08,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2041502150] [2020-09-25 13:06:08,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:06:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:08,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:08,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:08,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-25 13:06:08,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:08,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 785 [2020-09-25 13:06:08,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:08,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:08,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:06:08,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-25 13:06:08,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:06:08,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:06:09,297 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:06:09,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:06:09,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:09,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:09,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:09,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:06:09,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:09,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 13:06:09,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:09,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:09,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:09,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:09,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:09,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:09,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:06:09,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:09,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:09,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:09,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:09,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:09,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:06:09,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:09,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:09,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:09,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:09,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:09,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:09,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:06:09,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:09,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:09,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:09,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:09,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:09,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:06:09,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:09,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:09,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:09,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:09,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:09,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:06:09,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:06:09,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:09,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:09,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:09,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:06:09,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:09,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:06:09,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:09,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:09,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:09,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:09,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:09,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:09,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:06:09,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:09,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:09,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:09,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:09,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:09,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:06:09,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:09,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:09,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:09,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:09,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:09,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:09,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:06:09,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:09,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:09,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:09,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:06:09,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:09,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:06:09,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:09,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:09,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:09,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:09,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:09,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:09,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 13:06:09,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:09,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:09,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:09,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:06:09,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:09,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:06:09,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:09,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:09,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:09,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:09,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:09,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:09,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 13:06:09,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:09,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:09,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:09,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 13:06:09,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:09,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 13:06:09,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:09,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:09,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:06:09,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 13:06:09,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:06:09,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:09,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:06:09,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:09,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:09,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:09,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 13:06:09,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:09,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 13:06:09,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:09,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:09,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:06:09,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:06:09,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:06:09,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:09,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:06:09,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:09,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:09,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:09,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:06:09,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:09,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:06:09,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:09,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:09,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:06:09,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:09,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:06:09,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:09,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 13:06:09,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:09,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:09,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:09,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:06:09,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:09,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:06:09,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:09,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:09,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:09,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 13:06:09,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:09,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:09,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 13:06:09,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:09,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:09,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:09,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:06:09,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:09,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:06:09,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:09,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:09,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:09,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:06:09,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:09,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:09,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 13:06:09,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:09,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:09,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:09,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:06:09,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:09,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:06:09,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:09,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:09,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:09,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:06:09,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:09,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:09,855 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 13:06:09,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2041502150] [2020-09-25 13:06:09,856 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:06:09,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 13:06:09,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724892977] [2020-09-25 13:06:09,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:06:09,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:06:09,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:06:09,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:06:09,859 INFO L87 Difference]: Start difference. First operand 909 states and 1060 transitions. Second operand 10 states. [2020-09-25 13:06:11,179 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:06:11,481 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:06:11,839 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:06:12,197 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:06:12,425 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188