/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=0.3 --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_spec4_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:07:50,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:07:50,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:07:50,362 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:07:50,363 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:07:50,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:07:50,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:07:50,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:07:50,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:07:50,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:07:50,385 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:07:50,386 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:07:50,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:07:50,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:07:50,392 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:07:50,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:07:50,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:07:50,397 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:07:50,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:07:50,407 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:07:50,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:07:50,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:07:50,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:07:50,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:07:50,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:07:50,418 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:07:50,418 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:07:50,419 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:07:50,419 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:07:50,420 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:07:50,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:07:50,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:07:50,423 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:07:50,423 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:07:50,425 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:07:50,425 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:07:50,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:07:50,426 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:07:50,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:07:50,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:07:50,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:07:50,429 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 12:07:50,455 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:07:50,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:07:50,456 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:07:50,457 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:07:50,457 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:07:50,457 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:07:50,457 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:07:50,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:07:50,458 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:07:50,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:07:50,458 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:07:50,458 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:07:50,459 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:07:50,459 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:07:50,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:07:50,459 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:07:50,459 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:07:50,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:07:50,460 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:07:50,460 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:07:50,460 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:07:50,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:07:50,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:07:50,461 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:07:50,461 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:07:50,461 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:07:50,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:07:50,462 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:07:50,462 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:07:50,462 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=0.3;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=0.3;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=0.3;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=0.3;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=0.3;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=0.3;log-additional-information=true; [2020-09-25 12:07:50,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:07:50,985 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:07:50,992 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:07:50,995 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:07:50,996 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:07:50,998 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c [2020-09-25 12:07:51,097 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a011d7da9/864f262ec1cd4866bc90dc04287d50e5/FLAGfac17190c [2020-09-25 12:07:51,744 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:07:51,745 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c [2020-09-25 12:07:51,770 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a011d7da9/864f262ec1cd4866bc90dc04287d50e5/FLAGfac17190c [2020-09-25 12:07:51,998 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a011d7da9/864f262ec1cd4866bc90dc04287d50e5 [2020-09-25 12:07:52,011 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:07:52,016 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:07:52,020 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:07:52,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:07:52,025 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:07:52,026 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:07:51" (1/1) ... [2020-09-25 12:07:52,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22589b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:07:52, skipping insertion in model container [2020-09-25 12:07:52,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:07:51" (1/1) ... [2020-09-25 12:07:52,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:07:52,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:07:52,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:07:52,570 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:07:52,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:07:52,833 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:07:52,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:07:52 WrapperNode [2020-09-25 12:07:52,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:07:52,838 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:07:52,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:07:52,838 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:07:52,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:07:52" (1/1) ... [2020-09-25 12:07:52,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:07:52" (1/1) ... [2020-09-25 12:07:52,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:07:52" (1/1) ... [2020-09-25 12:07:52,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:07:52" (1/1) ... [2020-09-25 12:07:52,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:07:52" (1/1) ... [2020-09-25 12:07:52,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:07:52" (1/1) ... [2020-09-25 12:07:52,960 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:07:52" (1/1) ... [2020-09-25 12:07:52,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:07:52,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:07:52,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:07:52,978 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:07:52,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:07:52" (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 12:07:53,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:07:53,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:07:53,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 12:07:53,078 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 12:07:53,078 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 12:07:53,079 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 12:07:53,079 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 12:07:53,079 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:07:53,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 12:07:53,079 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 12:07:53,080 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 12:07:53,080 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 12:07:53,080 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 12:07:53,080 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 12:07:53,080 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 12:07:53,081 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 12:07:53,081 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 12:07:53,081 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 12:07:53,081 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 12:07:53,082 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 12:07:53,082 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 12:07:53,082 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 12:07:53,082 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 12:07:53,082 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 12:07:53,082 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 12:07:53,083 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 12:07:53,083 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 12:07:53,083 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 12:07:53,083 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 12:07:53,083 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 12:07:53,083 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 12:07:53,084 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 12:07:53,084 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 12:07:53,084 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 12:07:53,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 12:07:53,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 12:07:53,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 12:07:53,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 12:07:53,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 12:07:53,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 12:07:53,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 12:07:53,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:07:53,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:07:53,086 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 12:07:53,086 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 12:07:53,086 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 12:07:53,086 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 12:07:53,087 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 12:07:53,087 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 12:07:53,087 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 12:07:53,087 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 12:07:53,087 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 12:07:53,088 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 12:07:53,088 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 12:07:53,088 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 12:07:53,088 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 12:07:53,088 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:07:53,088 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 12:07:53,089 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 12:07:53,089 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 12:07:53,089 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 12:07:53,089 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 12:07:53,089 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 12:07:53,090 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 12:07:53,090 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 12:07:53,090 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 12:07:53,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 12:07:53,090 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 12:07:53,090 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 12:07:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 12:07:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 12:07:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 12:07:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 12:07:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 12:07:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 12:07:53,092 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 12:07:53,092 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 12:07:53,092 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 12:07:53,092 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 12:07:53,092 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 12:07:53,092 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 12:07:53,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 12:07:53,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 12:07:53,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 12:07:53,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 12:07:53,093 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 12:07:53,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 12:07:53,094 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 12:07:53,094 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 12:07:53,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 12:07:53,094 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 12:07:53,094 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 12:07:53,094 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 12:07:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:07:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 12:07:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:07:54,455 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:07:54,456 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 12:07:54,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:07:54 BoogieIcfgContainer [2020-09-25 12:07:54,464 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:07:54,465 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:07:54,465 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:07:54,469 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:07:54,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:07:51" (1/3) ... [2020-09-25 12:07:54,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@325168fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:07:54, skipping insertion in model container [2020-09-25 12:07:54,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:07:52" (2/3) ... [2020-09-25 12:07:54,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@325168fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:07:54, skipping insertion in model container [2020-09-25 12:07:54,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:07:54" (3/3) ... [2020-09-25 12:07:54,473 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product51.cil.c [2020-09-25 12:07:54,485 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:07:54,497 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:07:54,520 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:07:54,555 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:07:54,555 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:07:54,555 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:07:54,555 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:07:54,556 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:07:54,556 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:07:54,556 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:07:54,556 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:07:54,587 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states. [2020-09-25 12:07:54,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 12:07:54,605 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:07:54,606 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 12:07:54,607 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:07:54,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:07:54,613 INFO L82 PathProgramCache]: Analyzing trace with hash -2089318466, now seen corresponding path program 1 times [2020-09-25 12:07:54,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:07:54,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1562271896] [2020-09-25 12:07:54,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:07:54,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:55,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:55,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:56,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:57,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:59,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:59,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 12:07:59,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:07:59,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 12:07:59,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:59,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:59,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:07:59,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 12:07:59,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 12:07:59,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 16 [2020-09-25 12:08:00,695 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:08:00,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:08:00,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:00,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:01,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:01,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:08:01,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:01,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 376 [2020-09-25 12:08:01,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:01,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:01,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:01,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:01,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 12:08:01,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:01,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:08:01,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:01,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:01,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:01,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:01,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:01,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:08:01,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:01,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:01,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:01,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:01,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:08:01,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:01,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:08:01,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:01,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:01,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:01,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:01,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:01,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:08:01,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:01,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:01,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:01,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:01,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:08:01,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:08:01,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:08:01,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:01,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:01,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:01,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:01,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:01,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:08:01,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:01,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:01,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:01,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:01,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:08:01,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:08:01,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:08:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:01,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:01,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:01,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:01,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:01,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:08:01,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:01,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:01,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:01,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:01,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:08:01,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:08:01,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 12:08:01,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:01,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:01,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:01,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:01,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:01,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:08:01,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:01,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:01,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:01,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:08:01,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:01,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:01,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 12:08:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:01,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:01,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:01,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:01,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:01,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:08:01,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:01,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:01,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:01,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:08:01,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:01,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:01,471 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 12:08:01,472 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1562271896] [2020-09-25 12:08:01,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:08:01,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 12:08:01,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693066449] [2020-09-25 12:08:01,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 12:08:01,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:08:01,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 12:08:01,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 12:08:01,521 INFO L87 Difference]: Start difference. First operand 318 states. Second operand 4 states. [2020-09-25 12:08:02,305 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:08:05,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:08:05,056 INFO L93 Difference]: Finished difference Result 692 states and 838 transitions. [2020-09-25 12:08:05,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 12:08:05,059 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 12:08:05,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:08:05,083 INFO L225 Difference]: With dead ends: 692 [2020-09-25 12:08:05,083 INFO L226 Difference]: Without dead ends: 485 [2020-09-25 12:08:05,091 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:08:05,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2020-09-25 12:08:05,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 418. [2020-09-25 12:08:05,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-09-25 12:08:05,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 467 transitions. [2020-09-25 12:08:05,287 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 467 transitions. Word has length 142 [2020-09-25 12:08:05,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:08:05,288 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 467 transitions. [2020-09-25 12:08:05,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 12:08:05,289 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 467 transitions. [2020-09-25 12:08:05,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 12:08:05,294 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:08:05,295 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:08:05,295 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:08:05,295 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:08:05,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:08:05,296 INFO L82 PathProgramCache]: Analyzing trace with hash 22032972, now seen corresponding path program 1 times [2020-09-25 12:08:05,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:08:05,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1208397494] [2020-09-25 12:08:05,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:08:05,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:05,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:05,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:05,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:06,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:10,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:10,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 12:08:10,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:08:10,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 12:08:10,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:10,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:10,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 12:08:10,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 12:08:10,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 12:08:10,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:10,690 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:08:10,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:08:10,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:10,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:10,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:10,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:08:10,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:10,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-09-25 12:08:10,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:10,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:10,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:10,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:10,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 12:08:10,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:08:11,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:08:11,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:11,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:11,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:11,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:11,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:11,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:08:11,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:11,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:11,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:11,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:11,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:08:11,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:11,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:08:11,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:11,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:11,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:11,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:11,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:11,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:08:11,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:11,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:11,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:11,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:11,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:08:11,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:11,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:08:11,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:11,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:11,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:11,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:11,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:11,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 12:08:11,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:11,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:11,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:11,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:11,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:08:11,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:11,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:08:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:11,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:11,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:11,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:11,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:11,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:08:11,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:11,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:11,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:11,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:11,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:08:11,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:11,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 12:08:11,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:11,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:11,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:11,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:11,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 12:08:11,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:08:11,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 12:08:11,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:11,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:11,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:08:11,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:08:11,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:08:11,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:11,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:08:11,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:11,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:11,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:11,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:08:11,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:11,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 12:08:11,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:11,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:11,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:08:11,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:08:11,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 12:08:11,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:11,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:08:11,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:11,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:11,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:11,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:11,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:11,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:08:11,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:11,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:11,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:11,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:11,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:08:11,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:11,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 12:08:11,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:11,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:11,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:11,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:11,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:11,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 12:08:11,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:11,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:11,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:11,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:08:11,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:11,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:11,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 12:08:11,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:11,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:11,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:11,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:11,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:11,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:08:11,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:11,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:11,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:11,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:08:11,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:11,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:11,237 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 12:08:11,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1208397494] [2020-09-25 12:08:11,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:08:11,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 12:08:11,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902715480] [2020-09-25 12:08:11,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:08:11,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:08:11,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:08:11,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:08:11,243 INFO L87 Difference]: Start difference. First operand 418 states and 467 transitions. Second operand 6 states. [2020-09-25 12:08:11,742 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:08:13,294 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:08:14,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:08:14,673 INFO L93 Difference]: Finished difference Result 1120 states and 1388 transitions. [2020-09-25 12:08:14,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 12:08:14,674 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2020-09-25 12:08:14,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:08:14,683 INFO L225 Difference]: With dead ends: 1120 [2020-09-25 12:08:14,683 INFO L226 Difference]: Without dead ends: 812 [2020-09-25 12:08:14,687 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-25 12:08:14,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2020-09-25 12:08:14,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 669. [2020-09-25 12:08:14,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 669 states. [2020-09-25 12:08:14,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 765 transitions. [2020-09-25 12:08:14,810 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 765 transitions. Word has length 156 [2020-09-25 12:08:14,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:08:14,811 INFO L479 AbstractCegarLoop]: Abstraction has 669 states and 765 transitions. [2020-09-25 12:08:14,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:08:14,811 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 765 transitions. [2020-09-25 12:08:14,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 12:08:14,814 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:08:14,814 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:08:14,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:08:14,815 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:08:14,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:08:14,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1302879136, now seen corresponding path program 1 times [2020-09-25 12:08:14,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:08:14,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1138420682] [2020-09-25 12:08:14,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:08:14,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:14,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:15,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:16,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:18,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:19,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:19,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 12:08:19,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:08:19,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 12:08:19,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:19,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:19,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 12:08:19,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 12:08:19,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 12:08:19,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:20,270 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:08:20,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:08:20,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:20,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:20,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:20,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:08:20,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:20,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-09-25 12:08:20,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:20,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:20,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:20,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:20,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 12:08:20,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:20,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:08:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:20,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:20,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:20,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:20,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:20,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:08:20,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:20,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:20,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:20,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:20,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:08:20,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:20,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:08:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:20,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:20,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:20,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:20,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:20,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:08:20,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:20,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:20,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:20,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:20,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:08:20,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:20,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:08:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:20,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:20,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:20,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:20,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:20,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:08:20,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:20,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:20,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:20,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:20,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:08:20,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:08:20,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:08:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:20,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:20,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:20,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:20,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:20,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:08:20,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:20,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:20,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:20,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:20,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:08:20,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:08:20,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 12:08:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:20,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:20,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:20,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:08:20,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:20,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:08:20,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:20,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:20,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:20,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:20,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:08:20,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:20,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 12:08:20,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:20,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:20,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:20,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:20,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:20,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 12:08:20,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:20,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:20,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:08:20,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:20,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:08:20,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:20,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 12:08:20,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:20,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:20,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:20,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:20,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:20,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:08:20,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:20,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:20,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:20,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:08:20,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:20,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:20,834 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 12:08:20,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1138420682] [2020-09-25 12:08:20,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:08:20,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 12:08:20,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126086973] [2020-09-25 12:08:20,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 12:08:20,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:08:20,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 12:08:20,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:08:20,841 INFO L87 Difference]: Start difference. First operand 669 states and 765 transitions. Second operand 10 states. [2020-09-25 12:08:21,361 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:08:22,901 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 12:08:23,436 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 12:08:23,784 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:08:24,098 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 12:08:24,431 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:08:25,442 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:08:25,778 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 12:08:26,239 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:08:27,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:08:27,848 INFO L93 Difference]: Finished difference Result 1692 states and 2141 transitions. [2020-09-25 12:08:27,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 12:08:27,849 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2020-09-25 12:08:27,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:08:27,860 INFO L225 Difference]: With dead ends: 1692 [2020-09-25 12:08:27,860 INFO L226 Difference]: Without dead ends: 1133 [2020-09-25 12:08:27,863 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-25 12:08:27,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states. [2020-09-25 12:08:28,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 1035. [2020-09-25 12:08:28,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1035 states. [2020-09-25 12:08:28,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1257 transitions. [2020-09-25 12:08:28,036 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1257 transitions. Word has length 161 [2020-09-25 12:08:28,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:08:28,038 INFO L479 AbstractCegarLoop]: Abstraction has 1035 states and 1257 transitions. [2020-09-25 12:08:28,038 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 12:08:28,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1257 transitions. [2020-09-25 12:08:28,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-09-25 12:08:28,044 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:08:28,045 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:08:28,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:08:28,045 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:08:28,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:08:28,046 INFO L82 PathProgramCache]: Analyzing trace with hash 727784266, now seen corresponding path program 1 times [2020-09-25 12:08:28,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:08:28,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [894729550] [2020-09-25 12:08:28,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:08:28,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:28,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:28,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:28,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:28,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:29,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:32,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:32,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-09-25 12:08:32,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 12:08:32,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4349 [2020-09-25 12:08:32,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:32,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:32,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:32,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-09-25 12:08:32,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-25 12:08:32,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:32,750 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:08:32,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:08:32,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:32,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:32,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:32,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:08:32,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:32,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 12:08:32,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:32,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:32,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:32,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:32,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:32,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:32,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:08:32,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:32,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:32,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:32,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:32,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:32,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:08:32,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:32,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:32,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:32,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:32,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:32,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:32,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:08:32,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:32,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:32,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:32,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:32,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:32,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:08:32,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:32,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:32,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:32,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:32,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:32,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:32,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:08:32,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:32,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:32,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:32,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:32,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:32,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:08:32,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:32,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:32,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:32,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:32,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:32,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:32,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:08:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:32,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:32,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:32,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:32,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:32,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:08:32,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:32,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:32,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:32,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:32,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:32,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:32,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 12:08:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:32,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:32,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:32,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:08:32,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:32,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:08:32,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:32,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:32,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:32,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:32,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:32,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:32,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 12:08:32,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:32,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:32,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:33,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:33,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 12:08:33,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:08:33,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-09-25 12:08:33,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:33,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:33,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:08:33,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 12:08:33,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:08:33,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:33,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:08:33,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:33,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:33,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:33,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 12:08:33,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:33,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 12:08:33,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:33,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:33,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:08:33,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 12:08:33,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:08:33,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:33,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:08:33,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:33,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:33,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:33,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 12:08:33,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:33,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 12:08:33,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:33,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:33,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:08:33,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 12:08:33,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:08:33,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:33,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:08:33,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:33,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:33,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:33,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:08:33,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:33,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 12:08:33,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:33,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:33,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:08:33,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:33,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 12:08:33,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:08:33,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:08:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:33,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:33,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:33,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:08:33,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:33,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:08:33,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:33,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:33,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:33,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:33,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:33,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:33,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 12:08:33,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:33,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:33,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:33,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:08:33,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:33,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:08:33,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:33,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:33,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:33,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 12:08:33,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:33,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:33,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 12:08:33,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:33,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:33,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:33,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 12:08:33,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:33,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 12:08:33,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:33,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:33,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:33,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 12:08:33,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:33,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:33,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:08:33,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:33,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:33,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:33,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:33,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:33,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:08:33,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:33,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:33,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:33,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:33,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:33,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:08:33,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-25 12:08:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:33,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:33,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:33,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:08:33,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:33,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:08:33,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:33,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:33,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:33,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:33,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:08:33,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:08:33,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-25 12:08:33,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:33,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:33,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:33,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:33,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:33,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:08:33,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:33,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:33,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:33,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:08:33,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:33,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:33,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-25 12:08:33,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:33,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:33,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:33,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:33,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:33,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:08:33,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:33,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:33,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:33,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:08:33,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:33,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:33,761 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 12:08:33,762 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [894729550] [2020-09-25 12:08:33,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:08:33,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 12:08:33,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907120618] [2020-09-25 12:08:33,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 12:08:33,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:08:33,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 12:08:33,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-09-25 12:08:33,766 INFO L87 Difference]: Start difference. First operand 1035 states and 1257 transitions. Second operand 13 states. [2020-09-25 12:08:34,356 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:08:35,501 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:08:35,823 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:08:36,111 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 12:08:36,468 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:08:36,828 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 12:08:37,168 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 190