/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=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product08.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:53:21,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:53:21,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:53:21,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:53:21,205 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:53:21,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:53:21,216 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:53:21,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:53:21,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:53:21,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:53:21,230 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:53:21,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:53:21,231 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:53:21,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:53:21,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:53:21,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:53:21,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:53:21,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:53:21,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:53:21,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:53:21,255 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:53:21,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:53:21,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:53:21,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:53:21,276 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:53:21,276 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:53:21,276 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:53:21,277 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:53:21,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:53:21,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:53:21,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:53:21,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:53:21,284 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:53:21,285 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:53:21,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:53:21,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:53:21,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:53:21,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:53:21,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:53:21,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:53:21,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:53:21,294 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 [2020-09-24 17:53:21,341 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:53:21,341 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:53:21,344 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:53:21,344 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:53:21,344 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:53:21,344 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:53:21,345 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:53:21,345 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:53:21,345 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:53:21,345 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:53:21,346 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:53:21,347 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:53:21,347 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:53:21,347 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:53:21,348 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:53:21,348 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:53:21,348 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:53:21,348 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:53:21,349 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:53:21,349 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:53:21,349 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:53:21,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:53:21,349 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:53:21,350 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:53:21,350 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:53:21,350 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:53:21,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:53:21,351 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:53:21,351 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:53:21,351 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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;log-additional-information=true; [2020-09-24 17:53:22,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:53:22,511 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:53:22,515 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:53:22,517 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:53:22,518 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:53:22,519 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product08.cil.c [2020-09-24 17:53:22,618 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d2ec7c41a/46f761245bb643dfa22339b2a33f3867/FLAGebbb4fd7c [2020-09-24 17:53:23,229 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:53:23,230 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product08.cil.c [2020-09-24 17:53:23,246 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d2ec7c41a/46f761245bb643dfa22339b2a33f3867/FLAGebbb4fd7c [2020-09-24 17:53:23,514 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d2ec7c41a/46f761245bb643dfa22339b2a33f3867 [2020-09-24 17:53:23,528 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:53:23,533 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:53:23,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:53:23,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:53:23,539 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:53:23,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:53:23" (1/1) ... [2020-09-24 17:53:23,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:23, skipping insertion in model container [2020-09-24 17:53:23,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:53:23" (1/1) ... [2020-09-24 17:53:23,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:53:23,605 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:53:24,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:53:24,040 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:53:24,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:53:24,252 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:53:24,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:24 WrapperNode [2020-09-24 17:53:24,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:53:24,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:53:24,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:53:24,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:53:24,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:24" (1/1) ... [2020-09-24 17:53:24,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:24" (1/1) ... [2020-09-24 17:53:24,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:24" (1/1) ... [2020-09-24 17:53:24,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:24" (1/1) ... [2020-09-24 17:53:24,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:24" (1/1) ... [2020-09-24 17:53:24,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:24" (1/1) ... [2020-09-24 17:53:24,355 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:24" (1/1) ... [2020-09-24 17:53:24,373 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:53:24,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:53:24,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:53:24,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:53:24,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:24" (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 [2020-09-24 17:53:24,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:53:24,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:53:24,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 17:53:24,469 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 17:53:24,469 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 17:53:24,470 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 17:53:24,470 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 17:53:24,470 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 17:53:24,472 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 17:53:24,472 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 17:53:24,472 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 17:53:24,472 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 17:53:24,472 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 17:53:24,472 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 17:53:24,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 17:53:24,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 17:53:24,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 17:53:24,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 17:53:24,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 17:53:24,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 17:53:24,474 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 17:53:24,475 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 17:53:24,475 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 17:53:24,475 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 17:53:24,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 17:53:24,476 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 17:53:24,476 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 17:53:24,477 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 17:53:24,477 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 17:53:24,477 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:53:24,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 17:53:24,477 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 17:53:24,477 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 17:53:24,478 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 17:53:24,478 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 17:53:24,478 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 17:53:24,478 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 17:53:24,478 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:53:24,478 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:53:24,479 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 17:53:24,479 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 17:53:24,479 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 17:53:24,479 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 17:53:24,479 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 17:53:24,479 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 17:53:24,479 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 17:53:24,480 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 17:53:24,480 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 17:53:24,480 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 17:53:24,480 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 17:53:24,480 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 17:53:24,481 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 17:53:24,481 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 17:53:24,481 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 17:53:24,481 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 17:53:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 17:53:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 17:53:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 17:53:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 17:53:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 17:53:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 17:53:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 17:53:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 17:53:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 17:53:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 17:53:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 17:53:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 17:53:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 17:53:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 17:53:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 17:53:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 17:53:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 17:53:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 17:53:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 17:53:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 17:53:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 17:53:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 17:53:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 17:53:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 17:53:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 17:53:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 17:53:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 17:53:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 17:53:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:53:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 17:53:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:53:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 17:53:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:53:25,923 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:53:25,924 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 17:53:25,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:53:25 BoogieIcfgContainer [2020-09-24 17:53:25,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:53:25,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:53:25,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:53:25,937 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:53:25,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:53:23" (1/3) ... [2020-09-24 17:53:25,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6affb9db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:53:25, skipping insertion in model container [2020-09-24 17:53:25,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:24" (2/3) ... [2020-09-24 17:53:25,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6affb9db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:53:25, skipping insertion in model container [2020-09-24 17:53:25,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:53:25" (3/3) ... [2020-09-24 17:53:25,941 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product08.cil.c [2020-09-24 17:53:25,954 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:53:25,965 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:53:25,990 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:53:26,027 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:53:26,027 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:53:26,027 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:53:26,027 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:53:26,028 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:53:26,028 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:53:26,028 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:53:26,028 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:53:26,061 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states. [2020-09-24 17:53:26,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 17:53:26,080 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:53:26,081 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:53:26,082 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:53:26,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:53:26,089 INFO L82 PathProgramCache]: Analyzing trace with hash 79669502, now seen corresponding path program 1 times [2020-09-24 17:53:26,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:53:26,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [418898993] [2020-09-24 17:53:26,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:53:26,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:26,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:26,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:28,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:29,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:30,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:31,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:31,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 17:53:31,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:53:31,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-24 17:53:31,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:31,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:31,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 17:53:31,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:31,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 17:53:32,082 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:53:32,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:53:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:32,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:32,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:32,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:53:32,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:32,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-09-24 17:53:32,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:32,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:32,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:32,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:32,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 17:53:32,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:53:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:32,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:32,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:32,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:32,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:32,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:53:32,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:32,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:32,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:32,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:32,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:32,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:53:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:32,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:32,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:32,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:32,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:32,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:53:32,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:32,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:32,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:32,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:32,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:32,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:53:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:32,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:32,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:32,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:32,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:32,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:53:32,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:32,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:32,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:32,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:32,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:32,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:53:32,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:32,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:32,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:32,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:32,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:32,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:53:32,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:32,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:32,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:32,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:32,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:32,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 17:53:32,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:32,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:32,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:32,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:32,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:32,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:53:32,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:32,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:32,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:53:32,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:32,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:32,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 17:53:32,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:32,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:32,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:32,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:32,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:32,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:53:32,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:32,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:32,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:53:32,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:32,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:32,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:53:32,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [418898993] [2020-09-24 17:53:32,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:53:32,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:53:32,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35285878] [2020-09-24 17:53:32,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:53:32,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:53:32,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:53:32,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:53:32,507 INFO L87 Difference]: Start difference. First operand 274 states. Second operand 3 states. [2020-09-24 17:53:33,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:53:33,914 INFO L93 Difference]: Finished difference Result 414 states and 500 transitions. [2020-09-24 17:53:33,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:53:33,917 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 17:53:33,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:53:33,946 INFO L225 Difference]: With dead ends: 414 [2020-09-24 17:53:33,946 INFO L226 Difference]: Without dead ends: 265 [2020-09-24 17:53:33,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:53:33,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-09-24 17:53:34,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 223. [2020-09-24 17:53:34,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-09-24 17:53:34,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 242 transitions. [2020-09-24 17:53:34,126 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 242 transitions. Word has length 142 [2020-09-24 17:53:34,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:53:34,128 INFO L479 AbstractCegarLoop]: Abstraction has 223 states and 242 transitions. [2020-09-24 17:53:34,128 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:53:34,128 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 242 transitions. [2020-09-24 17:53:34,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 17:53:34,139 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:53:34,139 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] [2020-09-24 17:53:34,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:53:34,140 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:53:34,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:53:34,145 INFO L82 PathProgramCache]: Analyzing trace with hash -177134221, now seen corresponding path program 1 times [2020-09-24 17:53:34,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:53:34,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [399421616] [2020-09-24 17:53:34,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:53:34,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:34,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:34,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:35,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:36,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:37,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:39,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:39,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 17:53:39,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:53:39,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-24 17:53:39,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:39,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:53:39,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 17:53:39,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 17:53:39,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:39,571 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:53:39,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:53:39,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:39,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:39,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:39,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:53:39,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:39,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 17:53:39,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:39,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:39,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:39,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:39,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:39,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:53:39,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:39,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:39,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:39,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:39,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:39,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:53:39,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:39,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:39,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:39,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:39,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:39,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:53:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:39,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:39,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:39,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:39,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:39,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:53:39,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:39,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:39,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:39,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:39,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:39,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:53:39,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:39,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:39,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:39,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:39,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:39,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:53:39,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:39,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:39,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:39,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:39,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:39,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:53:39,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:39,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:39,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:39,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:39,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:39,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:53:39,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:39,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:39,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:39,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:39,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:39,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 17:53:39,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:39,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:39,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:39,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:39,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:39,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:53:39,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:39,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:39,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:53:39,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:39,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:39,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 17:53:39,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:39,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:39,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:39,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:39,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:39,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:53:39,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:39,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:39,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:53:39,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:39,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:39,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:53:39,798 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [399421616] [2020-09-24 17:53:39,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:53:39,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 17:53:39,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495110463] [2020-09-24 17:53:39,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 17:53:39,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:53:39,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 17:53:39,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:53:39,802 INFO L87 Difference]: Start difference. First operand 223 states and 242 transitions. Second operand 4 states. [2020-09-24 17:53:40,496 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:53:41,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:53:41,300 INFO L93 Difference]: Finished difference Result 321 states and 363 transitions. [2020-09-24 17:53:41,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 17:53:41,300 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 17:53:41,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:53:41,304 INFO L225 Difference]: With dead ends: 321 [2020-09-24 17:53:41,304 INFO L226 Difference]: Without dead ends: 248 [2020-09-24 17:53:41,306 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 17:53:41,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-09-24 17:53:41,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 213. [2020-09-24 17:53:41,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-09-24 17:53:41,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 229 transitions. [2020-09-24 17:53:41,347 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 229 transitions. Word has length 143 [2020-09-24 17:53:41,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:53:41,348 INFO L479 AbstractCegarLoop]: Abstraction has 213 states and 229 transitions. [2020-09-24 17:53:41,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 17:53:41,348 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 229 transitions. [2020-09-24 17:53:41,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 17:53:41,350 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:53:41,351 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:53:41,351 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:53:41,351 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:53:41,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:53:41,351 INFO L82 PathProgramCache]: Analyzing trace with hash 680498528, now seen corresponding path program 1 times [2020-09-24 17:53:41,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:53:41,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1865084211] [2020-09-24 17:53:41,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:53:41,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:41,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:41,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:41,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:43,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:46,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:46,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 17:53:46,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:53:46,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-24 17:53:46,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:46,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:53:46,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 17:53:46,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:53:46,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:46,752 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:53:46,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:53:46,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:46,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:46,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:46,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:53:46,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:46,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-24 17:53:46,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:46,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:46,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:46,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:46,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:46,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:53:46,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:46,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:46,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:46,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:46,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:46,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:53:46,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:46,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:46,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:46,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:46,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:53:46,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:53:46,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:46,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:46,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:46,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:46,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:46,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:53:46,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:46,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:46,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:46,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:46,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:46,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:53:46,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:46,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:46,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:46,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:46,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:46,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:53:46,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:46,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:46,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:46,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:46,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:46,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:53:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:46,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:46,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:46,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:46,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:46,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:53:46,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:46,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:46,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:46,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:46,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:46,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 17:53:46,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:46,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:47,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:47,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:53:47,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:47,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:53:47,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:47,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:53:47,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:47,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 17:53:47,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:47,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 17:53:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:47,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:47,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:47,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:47,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:47,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 17:53:47,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:47,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:47,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:53:47,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:47,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:47,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 17:53:47,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:47,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:47,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:47,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:47,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:47,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 17:53:47,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:47,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:47,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:53:47,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:47,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:47,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:53:47,090 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1865084211] [2020-09-24 17:53:47,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:53:47,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 17:53:47,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440894782] [2020-09-24 17:53:47,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 17:53:47,094 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:53:47,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 17:53:47,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 17:53:47,102 INFO L87 Difference]: Start difference. First operand 213 states and 229 transitions. Second operand 5 states. [2020-09-24 17:53:47,747 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:53:49,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:53:49,277 INFO L93 Difference]: Finished difference Result 485 states and 568 transitions. [2020-09-24 17:53:49,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 17:53:49,278 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-24 17:53:49,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:53:49,283 INFO L225 Difference]: With dead ends: 485 [2020-09-24 17:53:49,283 INFO L226 Difference]: Without dead ends: 382 [2020-09-24 17:53:49,285 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:53:49,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2020-09-24 17:53:49,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 306. [2020-09-24 17:53:49,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2020-09-24 17:53:49,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 339 transitions. [2020-09-24 17:53:49,345 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 339 transitions. Word has length 156 [2020-09-24 17:53:49,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:53:49,345 INFO L479 AbstractCegarLoop]: Abstraction has 306 states and 339 transitions. [2020-09-24 17:53:49,345 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 17:53:49,346 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 339 transitions. [2020-09-24 17:53:49,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 17:53:49,348 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:53:49,348 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:53:49,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 17:53:49,349 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:53:49,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:53:49,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1977027375, now seen corresponding path program 1 times [2020-09-24 17:53:49,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:53:49,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [560990681] [2020-09-24 17:53:49,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:53:49,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:49,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:50,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:50,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:51,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:54,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:54,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-24 17:53:54,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:53:54,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-24 17:53:54,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:54,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:53:54,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-24 17:53:54,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 17:53:54,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:54,906 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:53:54,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:53:54,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:54,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:55,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:55,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:53:55,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:55,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-24 17:53:55,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:55,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:55,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:55,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:55,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:55,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:53:55,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:55,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:55,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:55,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:55,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:55,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:53:55,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:55,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:55,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:55,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:55,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:55,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:53:55,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:55,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:55,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:55,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:55,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:55,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:53:55,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:55,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:55,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:55,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:55,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:55,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:53:55,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:55,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:55,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:55,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:55,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:55,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:53:55,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:55,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:55,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:55,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:55,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:55,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:53:55,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:55,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:55,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:55,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:55,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:55,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:53:55,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:55,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:55,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:55,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:55,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:55,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 17:53:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:55,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:55,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:55,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:53:55,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:55,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:53:55,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:55,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:55,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:55,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:55,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:55,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 17:53:55,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:55,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:55,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:55,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:55,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:55,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:53:55,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:55,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:53:55,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:55,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:53:55,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:55,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 17:53:55,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:55,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:55,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:55,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:55,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:55,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 17:53:55,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:55,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:53:55,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:55,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:53:55,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:53:55,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:53:55,318 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [560990681] [2020-09-24 17:53:55,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:53:55,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 17:53:55,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034200164] [2020-09-24 17:53:55,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 17:53:55,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:53:55,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 17:53:55,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 17:53:55,322 INFO L87 Difference]: Start difference. First operand 306 states and 339 transitions. Second operand 9 states. [2020-09-24 17:53:56,000 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:53:57,359 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-24 17:53:57,987 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-24 17:53:58,300 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:53:58,641 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 17:53:58,952 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:53:59,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:53:59,163 INFO L93 Difference]: Finished difference Result 505 states and 592 transitions. [2020-09-24 17:53:59,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 17:53:59,164 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-24 17:53:59,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:53:59,165 INFO L225 Difference]: With dead ends: 505 [2020-09-24 17:53:59,165 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 17:53:59,171 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-09-24 17:53:59,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 17:53:59,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 17:53:59,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 17:53:59,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 17:53:59,172 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 161 [2020-09-24 17:53:59,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:53:59,173 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 17:53:59,173 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 17:53:59,173 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 17:53:59,173 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 17:53:59,173 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 17:53:59,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 17:53:59,351 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:53:59,514 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:53:59,678 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:53:59,806 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 6 [2020-09-24 17:53:59,962 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:54:00,124 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:00,281 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:00,606 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-24 17:54:00,927 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-24 17:54:01,243 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-24 17:54:01,478 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-09-24 17:54:01,633 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:01,739 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 6 [2020-09-24 17:54:01,893 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:02,203 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-24 17:54:02,511 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-24 17:54:02,821 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-24 17:54:02,964 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:54:03,112 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:03,262 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:03,410 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:03,556 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:54:03,706 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:03,855 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:03,998 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:54:04,152 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:04,297 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:54:04,448 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:04,599 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:04,748 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:04,899 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:05,055 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:54:05,204 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:05,353 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:05,500 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:05,645 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:54:05,803 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:06,050 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:06,361 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-24 17:54:06,675 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-24 17:54:06,987 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-24 17:54:07,221 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-09-24 17:54:07,370 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:07,516 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:54:07,668 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:07,820 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:54:07,967 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:08,117 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:08,376 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:08,525 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:54:08,677 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:08,928 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:09,073 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:54:09,222 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:09,369 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:54:09,517 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:09,666 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:09,813 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:10,257 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 7 [2020-09-24 17:54:10,445 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-24 17:54:10,654 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-24 17:54:11,039 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 11 [2020-09-24 17:54:11,257 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-24 17:54:11,486 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-24 17:54:11,676 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 8