/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=0.5 --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_spec2_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:17:26,199 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:17:26,203 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:17:26,237 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:17:26,237 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:17:26,238 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:17:26,240 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:17:26,241 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:17:26,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:17:26,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:17:26,245 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:17:26,246 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:17:26,247 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:17:26,248 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:17:26,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:17:26,250 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:17:26,251 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:17:26,251 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:17:26,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:17:26,255 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:17:26,256 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:17:26,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:17:26,259 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:17:26,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:17:26,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:17:26,262 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:17:26,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:17:26,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:17:26,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:17:26,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:17:26,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:17:26,266 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:17:26,267 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:17:26,268 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:17:26,269 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:17:26,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:17:26,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:17:26,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:17:26,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:17:26,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:17:26,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:17:26,273 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 14:17:26,310 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:17:26,310 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:17:26,313 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:17:26,313 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:17:26,313 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:17:26,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:17:26,314 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:17:26,314 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:17:26,314 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:17:26,314 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:17:26,314 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:17:26,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:17:26,315 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:17:26,315 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:17:26,315 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:17:26,315 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:17:26,316 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:17:26,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:17:26,318 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:17:26,318 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:17:26,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:17:26,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:17:26,319 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:17:26,319 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:17:26,319 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:17:26,319 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:17:26,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:17:26,320 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:17:26,320 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:17:26,320 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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;log-additional-information=true; [2020-09-25 14:17:26,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:17:26,812 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:17:26,819 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:17:26,821 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:17:26,821 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:17:26,822 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product55.cil.c [2020-09-25 14:17:26,913 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cffb067ae/e9a3c7dade1944209deef779faf41314/FLAGf772d6a8d [2020-09-25 14:17:27,550 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:17:27,554 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product55.cil.c [2020-09-25 14:17:27,583 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cffb067ae/e9a3c7dade1944209deef779faf41314/FLAGf772d6a8d [2020-09-25 14:17:27,803 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cffb067ae/e9a3c7dade1944209deef779faf41314 [2020-09-25 14:17:27,816 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:17:27,821 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:17:27,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:17:27,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:17:27,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:17:27,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:17:27" (1/1) ... [2020-09-25 14:17:27,832 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:27, skipping insertion in model container [2020-09-25 14:17:27,832 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:17:27" (1/1) ... [2020-09-25 14:17:27,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:17:27,895 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:17:28,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:17:28,422 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:17:28,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:17:28,548 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:17:28,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:28 WrapperNode [2020-09-25 14:17:28,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:17:28,550 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:17:28,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:17:28,550 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:17:28,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:28" (1/1) ... [2020-09-25 14:17:28,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:28" (1/1) ... [2020-09-25 14:17:28,589 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:28" (1/1) ... [2020-09-25 14:17:28,589 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:28" (1/1) ... [2020-09-25 14:17:28,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:28" (1/1) ... [2020-09-25 14:17:28,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:28" (1/1) ... [2020-09-25 14:17:28,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:28" (1/1) ... [2020-09-25 14:17:28,646 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:17:28,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:17:28,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:17:28,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:17:28,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:28" (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 14:17:28,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:17:28,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:17:28,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:17:28,736 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:17:28,736 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:17:28,736 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:17:28,736 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:17:28,737 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:17:28,737 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:17:28,737 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:17:28,737 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:17:28,737 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:17:28,738 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:17:28,738 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 14:17:28,738 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 14:17:28,738 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:17:28,738 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:17:28,738 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:17:28,739 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 14:17:28,739 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 14:17:28,739 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:17:28,739 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:17:28,740 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:17:28,740 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:17:28,740 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:17:28,740 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:17:28,740 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 14:17:28,740 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 14:17:28,741 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 14:17:28,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:17:28,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:17:28,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:17:28,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:17:28,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:17:28,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:17:28,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 14:17:28,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 14:17:28,742 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:17:28,742 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:17:28,742 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:17:28,743 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:17:28,743 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:17:28,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:17:28,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:17:28,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:17:28,743 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:17:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:17:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:17:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:17:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:17:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:17:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:17:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:17:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:17:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:17:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:17:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 14:17:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 14:17:28,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:17:28,746 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 14:17:28,746 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:17:28,746 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:17:28,746 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:17:28,746 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:17:28,747 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:17:28,747 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:17:28,747 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:17:28,747 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 14:17:28,747 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:17:28,747 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:17:28,748 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 14:17:28,748 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 14:17:28,748 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 14:17:28,748 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 14:17:28,748 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:17:28,748 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:17:28,749 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:17:28,749 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:17:28,749 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:17:28,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:17:28,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:17:28,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:17:28,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:17:28,750 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:17:28,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:17:28,750 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:17:28,750 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:17:28,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:17:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:17:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:17:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:17:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:17:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 14:17:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:17:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:17:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:17:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:17:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:17:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:17:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:17:29,962 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:17:29,962 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:17:29,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:17:29 BoogieIcfgContainer [2020-09-25 14:17:29,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:17:29,971 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:17:29,971 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:17:29,975 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:17:29,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:17:27" (1/3) ... [2020-09-25 14:17:29,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4322da9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:17:29, skipping insertion in model container [2020-09-25 14:17:29,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:28" (2/3) ... [2020-09-25 14:17:29,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4322da9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:17:29, skipping insertion in model container [2020-09-25 14:17:29,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:17:29" (3/3) ... [2020-09-25 14:17:29,980 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product55.cil.c [2020-09-25 14:17:29,992 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:17:30,003 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:17:30,026 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:17:30,060 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:17:30,060 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:17:30,060 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:17:30,060 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:17:30,060 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:17:30,061 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:17:30,061 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:17:30,061 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:17:30,091 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states. [2020-09-25 14:17:30,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 14:17:30,110 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:17:30,112 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] [2020-09-25 14:17:30,112 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:17:30,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:17:30,121 INFO L82 PathProgramCache]: Analyzing trace with hash -415680263, now seen corresponding path program 1 times [2020-09-25 14:17:30,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:17:30,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [949586438] [2020-09-25 14:17:30,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:17:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:30,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:30,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:32,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:33,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:33,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:35,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:35,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:35,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 14:17:35,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 14:17:35,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5060 [2020-09-25 14:17:35,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:35,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:35,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:17:35,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 14:17:35,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 14:17:35,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 14:17:36,003 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:17:36,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:17:36,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:36,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:36,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:36,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 14:17:36,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:36,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-09-25 14:17:36,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:36,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:36,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:36,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:36,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 14:17:36,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:36,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 14:17:36,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:36,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:36,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:36,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:17:36,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:36,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:17:36,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:36,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:36,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:36,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:36,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:17:36,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:36,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 14:17:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:36,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:36,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:36,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:17:36,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:36,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:17:36,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:36,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:36,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:36,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:36,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:17:36,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:36,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 14:17:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:36,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:36,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:36,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:17:36,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:36,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 14:17:36,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:36,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:36,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:36,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:36,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:17:36,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:36,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 14:17:36,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:36,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:36,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:36,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:17:36,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:36,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:17:36,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:36,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:36,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:36,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:36,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:17:36,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:36,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 14:17:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:36,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:36,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:36,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:17:36,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:36,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:17:36,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:36,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:36,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:36,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:36,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:17:36,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:36,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 14:17:36,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:36,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:36,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:36,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:17:36,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:36,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:17:36,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:36,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:36,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:17:36,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:17:36,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:17:36,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:36,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 14:17:36,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:36,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:36,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:36,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:17:36,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:36,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:17:36,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:36,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:36,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:17:36,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:17:36,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:17:36,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 14:17:36,604 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 14:17:36,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [949586438] [2020-09-25 14:17:36,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:17:36,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 14:17:36,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984870404] [2020-09-25 14:17:36,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 14:17:36,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:17:36,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 14:17:36,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:17:36,649 INFO L87 Difference]: Start difference. First operand 347 states. Second operand 5 states. [2020-09-25 14:17:37,352 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:17:40,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:17:40,055 INFO L93 Difference]: Finished difference Result 765 states and 922 transitions. [2020-09-25 14:17:40,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 14:17:40,058 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 14:17:40,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:17:40,081 INFO L225 Difference]: With dead ends: 765 [2020-09-25 14:17:40,082 INFO L226 Difference]: Without dead ends: 542 [2020-09-25 14:17:40,088 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:17:40,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2020-09-25 14:17:40,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 471. [2020-09-25 14:17:40,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 471 states. [2020-09-25 14:17:40,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 532 transitions. [2020-09-25 14:17:40,290 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 532 transitions. Word has length 148 [2020-09-25 14:17:40,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:17:40,291 INFO L479 AbstractCegarLoop]: Abstraction has 471 states and 532 transitions. [2020-09-25 14:17:40,291 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 14:17:40,291 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 532 transitions. [2020-09-25 14:17:40,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 14:17:40,297 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:17:40,298 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:17:40,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:17:40,298 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:17:40,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:17:40,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1440185397, now seen corresponding path program 1 times [2020-09-25 14:17:40,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:17:40,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [236198360] [2020-09-25 14:17:40,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:17:40,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:40,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:40,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:40,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:41,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:41,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:45,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:45,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-25 14:17:45,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:17:45,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-25 14:17:45,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:45,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:45,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 14:17:45,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 14:17:45,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-25 14:17:45,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:45,733 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:17:45,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:17:45,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:45,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:46,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:46,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 14:17:46,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:46,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-09-25 14:17:46,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:46,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:46,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:46,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:46,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 14:17:46,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:46,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 14:17:46,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:46,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:46,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:46,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:17:46,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:46,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:17:46,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:46,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:46,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:46,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:46,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:17:46,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:46,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 14:17:46,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:46,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:46,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:46,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:17:46,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:46,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:17:46,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:46,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:46,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:46,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:46,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:17:46,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:46,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 14:17:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:46,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:46,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:46,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:17:46,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:46,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:17:46,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:46,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:46,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:46,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:46,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:17:46,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:46,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 14:17:46,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:46,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:46,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:46,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:17:46,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:46,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:17:46,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:46,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:46,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:46,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:46,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:17:46,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:46,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 14:17:46,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:46,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:46,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:46,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:17:46,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:46,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:17:46,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:46,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:46,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:46,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:46,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:17:46,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:46,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 14:17:46,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:46,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:46,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:46,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:46,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:46,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 14:17:46,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:17:46,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 14:17:46,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:46,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:46,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:17:46,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:17:46,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:17:46,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:46,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:17:46,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:46,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:46,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:46,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:46,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 14:17:46,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:17:46,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 14:17:46,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:46,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:46,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:17:46,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:17:46,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 14:17:46,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:46,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:17:46,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:46,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:46,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:46,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:17:46,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:46,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:17:46,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:46,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:46,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:17:46,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:17:46,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 14:17:46,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:46,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:17:46,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:46,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:46,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:46,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:17:46,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:46,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:17:46,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:46,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:46,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:46,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:46,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:17:46,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:46,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 14:17:46,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:46,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:46,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:46,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:17:46,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:46,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:17:46,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:46,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:46,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:17:46,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:17:46,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:17:46,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:46,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 14:17:46,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:46,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:46,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:46,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:17:46,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:46,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:17:46,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:46,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:46,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:17:46,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:17:46,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:17:46,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:46,327 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 14:17:46,328 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [236198360] [2020-09-25 14:17:46,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:17:46,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 14:17:46,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505369414] [2020-09-25 14:17:46,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:17:46,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:17:46,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:17:46,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:17:46,334 INFO L87 Difference]: Start difference. First operand 471 states and 532 transitions. Second operand 7 states. [2020-09-25 14:17:46,960 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:17:48,701 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:17:50,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:17:50,411 INFO L93 Difference]: Finished difference Result 1253 states and 1549 transitions. [2020-09-25 14:17:50,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 14:17:50,412 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 167 [2020-09-25 14:17:50,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:17:50,431 INFO L225 Difference]: With dead ends: 1253 [2020-09-25 14:17:50,431 INFO L226 Difference]: Without dead ends: 897 [2020-09-25 14:17:50,439 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 14:17:50,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2020-09-25 14:17:50,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 754. [2020-09-25 14:17:50,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 754 states. [2020-09-25 14:17:50,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 862 transitions. [2020-09-25 14:17:50,566 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 862 transitions. Word has length 167 [2020-09-25 14:17:50,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:17:50,567 INFO L479 AbstractCegarLoop]: Abstraction has 754 states and 862 transitions. [2020-09-25 14:17:50,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:17:50,567 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 862 transitions. [2020-09-25 14:17:50,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 14:17:50,570 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:17:50,570 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:17:50,571 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:17:50,571 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:17:50,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:17:50,571 INFO L82 PathProgramCache]: Analyzing trace with hash 309694267, now seen corresponding path program 1 times [2020-09-25 14:17:50,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:17:50,572 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [738265174] [2020-09-25 14:17:50,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:17:50,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:50,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:51,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:51,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:52,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:54,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:55,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:55,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 14:17:55,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:17:55,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 14:17:55,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:55,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:55,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:17:55,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 14:17:55,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 14:17:55,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:55,923 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:17:55,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:17:55,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:55,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:56,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:56,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 14:17:56,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:56,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 14:17:56,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:56,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:56,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:17:56,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:56,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:17:56,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 40 [2020-09-25 14:17:56,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 14:17:56,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:56,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:56,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:56,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:17:56,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:56,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:17:56,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:56,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:56,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:17:56,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:56,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:17:56,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:56,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 14:17:56,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:56,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:56,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:56,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:17:56,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:56,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:17:56,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:56,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:56,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:17:56,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:56,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:17:56,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:56,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 14:17:56,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:56,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:56,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:56,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:17:56,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:56,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:17:56,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:56,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:56,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:17:56,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:56,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:17:56,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:56,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 14:17:56,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:56,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:56,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:56,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:17:56,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:56,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:17:56,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:56,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:56,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:17:56,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:56,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:17:56,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:56,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 14:17:56,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:56,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:56,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:56,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:17:56,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:56,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:17:56,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:56,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:56,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:56,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:56,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 14:17:56,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:56,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 14:17:56,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:56,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:56,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:56,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:17:56,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:56,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:17:56,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:56,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:56,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:56,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:56,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:17:56,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:56,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 14:17:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:56,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:56,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:56,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:17:56,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:56,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:17:56,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:56,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:56,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:56,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:56,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:17:56,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:56,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 14:17:56,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:56,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:56,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:56,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:17:56,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:56,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:17:56,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:56,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:56,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:56,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:56,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:17:56,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:56,226 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 14:17:56,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [738265174] [2020-09-25 14:17:56,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:17:56,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 14:17:56,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519190342] [2020-09-25 14:17:56,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 14:17:56,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:17:56,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 14:17:56,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:17:56,232 INFO L87 Difference]: Start difference. First operand 754 states and 862 transitions. Second operand 6 states. [2020-09-25 14:17:56,754 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:18:00,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:18:00,374 INFO L93 Difference]: Finished difference Result 1722 states and 2229 transitions. [2020-09-25 14:18:00,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 14:18:00,374 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2020-09-25 14:18:00,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:18:00,387 INFO L225 Difference]: With dead ends: 1722 [2020-09-25 14:18:00,387 INFO L226 Difference]: Without dead ends: 1719 [2020-09-25 14:18:00,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:18:00,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1719 states. [2020-09-25 14:18:00,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1719 to 1412. [2020-09-25 14:18:00,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1412 states. [2020-09-25 14:18:00,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 1705 transitions. [2020-09-25 14:18:00,592 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 1705 transitions. Word has length 167 [2020-09-25 14:18:00,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:18:00,593 INFO L479 AbstractCegarLoop]: Abstraction has 1412 states and 1705 transitions. [2020-09-25 14:18:00,593 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 14:18:00,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 1705 transitions. [2020-09-25 14:18:00,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-09-25 14:18:00,599 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:18:00,599 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2020-09-25 14:18:00,600 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:18:00,600 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:18:00,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:18:00,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1413348314, now seen corresponding path program 1 times [2020-09-25 14:18:00,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:18:00,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [186821004] [2020-09-25 14:18:00,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:18:00,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:00,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:00,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:00,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:01,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:05,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:05,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 278 [2020-09-25 14:18:05,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:18:05,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 14:18:05,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:05,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:05,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:18:05,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 14:18:05,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-09-25 14:18:05,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:18:06,064 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:18:06,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:18:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:06,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:06,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:06,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 14:18:06,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:06,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-09-25 14:18:06,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:06,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:06,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:06,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:06,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 14:18:06,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:06,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 14:18:06,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:06,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:06,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:06,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:06,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:06,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:18:06,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:06,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:06,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:06,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:06,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:18:06,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:06,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 14:18:06,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:06,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:06,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:06,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:06,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:06,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:18:06,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:06,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:06,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:06,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:06,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:18:06,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:06,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 14:18:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:06,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:06,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:06,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:06,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:06,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:18:06,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:06,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:06,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:06,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:06,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:18:06,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:06,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 14:18:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:06,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:06,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:06,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:06,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:06,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:18:06,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:06,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:06,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:06,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:06,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:18:06,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:06,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 14:18:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:06,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:06,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:06,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:18:06,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:06,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:18:06,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:06,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:06,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:06,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:06,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:18:06,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:06,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 14:18:06,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:06,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:06,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:06,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:18:06,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:06,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:18:06,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:06,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:06,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:06,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:06,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:18:06,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:06,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 14:18:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:06,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:06,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:06,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:06,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 14:18:06,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:18:06,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 14:18:06,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:06,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:06,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:06,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:06,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 14:18:06,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:06,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:18:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:06,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:06,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:06,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 14:18:06,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:06,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:18:06,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:06,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:06,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:18:06,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:06,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:18:06,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:18:06,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:18:06,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:06,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:06,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:06,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:06,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:06,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:18:06,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:06,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:06,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:18:06,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:06,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:18:06,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:06,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-25 14:18:06,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:06,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:06,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:06,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:06,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 14:18:06,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:18:06,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292 [2020-09-25 14:18:06,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:06,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:06,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:18:06,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 14:18:06,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 14:18:06,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:06,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:18:06,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:06,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:07,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:07,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 14:18:07,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:07,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 14:18:07,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:07,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:07,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:18:07,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:07,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 14:18:07,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:07,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:18:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:07,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:07,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:07,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:07,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:07,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:18:07,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:07,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:07,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:18:07,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:07,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:18:07,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:07,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 14:18:07,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:07,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:07,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:07,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:07,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:07,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:18:07,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:07,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:07,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:07,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:07,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:18:07,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:07,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-09-25 14:18:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:07,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:07,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:07,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:07,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:07,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:18:07,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:07,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:07,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:18:07,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:18:07,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:18:07,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:07,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2020-09-25 14:18:07,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:07,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:07,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:07,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:07,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:07,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:18:07,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:07,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:07,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:18:07,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:18:07,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:18:07,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:07,203 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 37 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-09-25 14:18:07,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [186821004] [2020-09-25 14:18:07,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:18:07,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 14:18:07,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310148139] [2020-09-25 14:18:07,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 14:18:07,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:18:07,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 14:18:07,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-25 14:18:07,206 INFO L87 Difference]: Start difference. First operand 1412 states and 1705 transitions. Second operand 12 states. [2020-09-25 14:18:07,787 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:18:08,862 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:18:09,494 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 14:18:09,777 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 14:18:10,152 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 14:18:10,516 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 14:18:10,831 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 14:18:11,210 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-25 14:18:11,514 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 14:18:11,897 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 14:18:12,291 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-25 14:18:12,680 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 195