/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=DEEPEST --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_spec3_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:42:47,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:42:47,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:42:47,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:42:47,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:42:47,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:42:47,790 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:42:47,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:42:47,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:42:47,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:42:47,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:42:47,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:42:47,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:42:47,799 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:42:47,801 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:42:47,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:42:47,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:42:47,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:42:47,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:42:47,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:42:47,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:42:47,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:42:47,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:42:47,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:42:47,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:42:47,816 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:42:47,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:42:47,818 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:42:47,818 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:42:47,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:42:47,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:42:47,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:42:47,821 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:42:47,822 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:42:47,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:42:47,824 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:42:47,824 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:42:47,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:42:47,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:42:47,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:42:47,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:42:47,828 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 00:42:47,855 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:42:47,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:42:47,856 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:42:47,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:42:47,857 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:42:47,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:42:47,857 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:42:47,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:42:47,858 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:42:47,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:42:47,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:42:47,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:42:47,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:42:47,858 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:42:47,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:42:47,859 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:42:47,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:42:47,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:42:47,860 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:42:47,860 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:42:47,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:42:47,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:42:47,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:42:47,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:42:47,861 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:42:47,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:42:47,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:42:47,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:42:47,862 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:42:47,862 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 00:42:48,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:42:48,355 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:42:48,359 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:42:48,361 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:42:48,362 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:42:48,363 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product25.cil.c [2020-09-25 00:42:48,462 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a465632f9/8fa09b2629ea4ed3b54084c5f8a0f23c/FLAG6ec7f1e98 [2020-09-25 00:42:49,089 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:42:49,090 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product25.cil.c [2020-09-25 00:42:49,105 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a465632f9/8fa09b2629ea4ed3b54084c5f8a0f23c/FLAG6ec7f1e98 [2020-09-25 00:42:49,360 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a465632f9/8fa09b2629ea4ed3b54084c5f8a0f23c [2020-09-25 00:42:49,374 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:42:49,379 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:42:49,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:42:49,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:42:49,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:42:49,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:42:49" (1/1) ... [2020-09-25 00:42:49,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@445b6256 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:49, skipping insertion in model container [2020-09-25 00:42:49,391 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:42:49" (1/1) ... [2020-09-25 00:42:49,399 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:42:49,459 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:42:49,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:42:49,856 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:42:50,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:42:50,150 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:42:50,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:50 WrapperNode [2020-09-25 00:42:50,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:42:50,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:42:50,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:42:50,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:42:50,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:50" (1/1) ... [2020-09-25 00:42:50,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:50" (1/1) ... [2020-09-25 00:42:50,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:50" (1/1) ... [2020-09-25 00:42:50,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:50" (1/1) ... [2020-09-25 00:42:50,225 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:50" (1/1) ... [2020-09-25 00:42:50,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:50" (1/1) ... [2020-09-25 00:42:50,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:50" (1/1) ... [2020-09-25 00:42:50,250 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:42:50,251 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:42:50,251 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:42:50,251 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:42:50,253 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:50" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:42:50,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:42:50,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:42:50,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 00:42:50,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 00:42:50,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 00:42:50,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 00:42:50,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 00:42:50,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 00:42:50,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 00:42:50,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 00:42:50,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 00:42:50,366 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 00:42:50,366 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 00:42:50,366 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 00:42:50,366 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 00:42:50,367 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 00:42:50,367 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 00:42:50,368 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 00:42:50,368 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 00:42:50,368 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 00:42:50,369 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 00:42:50,369 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 00:42:50,369 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 00:42:50,370 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 00:42:50,370 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 00:42:50,371 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 00:42:50,371 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:42:50,371 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 00:42:50,371 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 00:42:50,372 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 00:42:50,372 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 00:42:50,372 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 00:42:50,372 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 00:42:50,372 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 00:42:50,372 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 00:42:50,373 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 00:42:50,373 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 00:42:50,373 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 00:42:50,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:42:50,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:42:50,374 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 00:42:50,374 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 00:42:50,374 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 00:42:50,374 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 00:42:50,374 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 00:42:50,374 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 00:42:50,375 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 00:42:50,375 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:42:50,375 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:42:50,375 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 00:42:50,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:42:50,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:42:50,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:42:50,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:42:50,377 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 00:42:50,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:42:50,377 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 00:42:50,377 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 00:42:50,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:42:50,377 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 00:42:50,378 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 00:42:50,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:42:50,378 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 00:42:50,378 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 00:42:50,378 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 00:42:50,378 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 00:42:50,378 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 00:42:50,379 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 00:42:50,379 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 00:42:50,379 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 00:42:50,380 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 00:42:50,381 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 00:42:50,382 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 00:42:50,382 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 00:42:50,382 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 00:42:50,382 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 00:42:50,382 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 00:42:50,383 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 00:42:50,383 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 00:42:50,383 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:42:50,383 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 00:42:50,383 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 00:42:50,384 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 00:42:50,384 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 00:42:50,385 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 00:42:50,385 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 00:42:50,385 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 00:42:50,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:42:50,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:42:50,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:42:51,548 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:42:51,548 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 00:42:51,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:42:51 BoogieIcfgContainer [2020-09-25 00:42:51,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:42:51,561 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:42:51,561 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:42:51,565 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:42:51,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:42:49" (1/3) ... [2020-09-25 00:42:51,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35eb59f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:42:51, skipping insertion in model container [2020-09-25 00:42:51,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:50" (2/3) ... [2020-09-25 00:42:51,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35eb59f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:42:51, skipping insertion in model container [2020-09-25 00:42:51,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:42:51" (3/3) ... [2020-09-25 00:42:51,569 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product25.cil.c [2020-09-25 00:42:51,581 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:42:51,592 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:42:51,610 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:42:51,643 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:42:51,643 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:42:51,643 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:42:51,643 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:42:51,643 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:42:51,643 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:42:51,644 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:42:51,644 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:42:51,673 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states. [2020-09-25 00:42:51,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 00:42:51,692 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:42:51,693 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] [2020-09-25 00:42:51,694 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:42:51,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:42:51,701 INFO L82 PathProgramCache]: Analyzing trace with hash 984796511, now seen corresponding path program 1 times [2020-09-25 00:42:51,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:42:51,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [428663977] [2020-09-25 00:42:51,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:42:52,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:52,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:52,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:52,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:56,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:56,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 00:42:56,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:42:56,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4316 [2020-09-25 00:42:56,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:56,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:56,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 00:42:56,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:56,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 00:42:56,808 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:42:56,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:42:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:56,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:56,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:56,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:42:56,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:56,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-25 00:42:56,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:56,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:56,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:56,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:56,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:57,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:42:57,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:57,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:57,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:57,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:57,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:57,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:57,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:57,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:57,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:57,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:57,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:57,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:42:57,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:57,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:57,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:57,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:57,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:57,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:57,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:57,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:57,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:57,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:57,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:57,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:42:57,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:57,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:57,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:57,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:57,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:57,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:42:57,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:57,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:57,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:57,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:57,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:57,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:42:57,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:57,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:57,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:57,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:57,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:57,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:57,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:57,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:57,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:57,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:57,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:57,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 00:42:57,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:57,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:57,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:57,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:57,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:57,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:57,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:57,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:57,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:57,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:57,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:57,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 00:42:57,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:57,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:57,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:57,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:57,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:57,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:42:57,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:57,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:57,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:57,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:57,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:57,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 00:42:57,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:57,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:57,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:57,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:57,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:57,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:57,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:57,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:57,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:57,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:57,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:57,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:42:57,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [428663977] [2020-09-25 00:42:57,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:42:57,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:42:57,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080541442] [2020-09-25 00:42:57,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:42:57,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:42:57,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:42:57,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:42:57,185 INFO L87 Difference]: Start difference. First operand 302 states. Second operand 3 states. [2020-09-25 00:42:58,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:42:58,474 INFO L93 Difference]: Finished difference Result 435 states and 517 transitions. [2020-09-25 00:42:58,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:42:58,477 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 00:42:58,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:42:58,498 INFO L225 Difference]: With dead ends: 435 [2020-09-25 00:42:58,498 INFO L226 Difference]: Without dead ends: 274 [2020-09-25 00:42:58,504 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:42:58,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-09-25 00:42:58,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 235. [2020-09-25 00:42:58,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-09-25 00:42:58,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 253 transitions. [2020-09-25 00:42:58,614 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 253 transitions. Word has length 153 [2020-09-25 00:42:58,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:42:58,618 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 253 transitions. [2020-09-25 00:42:58,618 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:42:58,619 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 253 transitions. [2020-09-25 00:42:58,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 00:42:58,631 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:42:58,631 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] [2020-09-25 00:42:58,632 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:42:58,632 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:42:58,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:42:58,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1074714265, now seen corresponding path program 1 times [2020-09-25 00:42:58,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:42:58,633 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1687371703] [2020-09-25 00:42:58,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:42:58,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:58,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:58,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:59,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:03,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:03,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 00:43:03,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:43:03,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-09-25 00:43:03,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:03,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:03,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 00:43:03,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 00:43:03,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:04,071 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:43:04,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:43:04,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:04,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:04,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:04,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:43:04,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:04,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 00:43:04,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:04,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:04,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:04,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:04,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:04,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:43:04,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:04,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:04,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:04,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:04,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:04,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:04,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:04,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:04,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:04,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:04,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:04,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:43:04,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:04,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:04,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:04,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:04,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:04,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:04,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:04,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:04,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:04,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:04,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:04,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:43:04,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:04,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:04,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:04,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:04,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:04,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:43:04,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:04,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:04,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:04,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:04,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:04,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:43:04,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:04,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:04,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:04,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:04,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:04,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:04,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:04,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:04,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:04,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:04,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:04,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 00:43:04,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:04,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:04,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:04,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:04,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:04,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:04,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:04,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:04,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:04,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:04,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:04,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 00:43:04,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:04,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:04,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:04,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:04,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:04,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:04,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:04,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:04,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:04,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:04,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:04,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 00:43:04,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:04,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:04,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:04,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:04,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:04,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:04,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:04,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:04,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:04,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:04,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:04,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:43:04,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1687371703] [2020-09-25 00:43:04,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:43:04,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 00:43:04,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837899409] [2020-09-25 00:43:04,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 00:43:04,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:43:04,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 00:43:04,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 00:43:04,299 INFO L87 Difference]: Start difference. First operand 235 states and 253 transitions. Second operand 4 states. [2020-09-25 00:43:05,040 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:43:05,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:43:05,927 INFO L93 Difference]: Finished difference Result 352 states and 392 transitions. [2020-09-25 00:43:05,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:43:05,928 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 00:43:05,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:43:05,933 INFO L225 Difference]: With dead ends: 352 [2020-09-25 00:43:05,933 INFO L226 Difference]: Without dead ends: 257 [2020-09-25 00:43:05,935 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:43:05,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-09-25 00:43:05,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 225. [2020-09-25 00:43:05,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-09-25 00:43:05,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 240 transitions. [2020-09-25 00:43:05,975 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 240 transitions. Word has length 154 [2020-09-25 00:43:05,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:43:05,976 INFO L479 AbstractCegarLoop]: Abstraction has 225 states and 240 transitions. [2020-09-25 00:43:05,976 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 00:43:05,976 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 240 transitions. [2020-09-25 00:43:05,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 00:43:05,979 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:43:05,979 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:43:05,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:43:05,980 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:43:05,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:43:05,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1460051564, now seen corresponding path program 1 times [2020-09-25 00:43:05,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:43:05,981 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1633624635] [2020-09-25 00:43:05,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:43:06,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:06,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:06,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:08,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:08,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 00:43:08,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:43:08,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2889 [2020-09-25 00:43:08,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:08,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:08,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 00:43:08,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 00:43:08,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:09,235 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:43:09,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:43:09,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:09,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:09,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:09,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:43:09,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:09,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-09-25 00:43:09,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:09,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:09,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:09,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 00:43:09,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:09,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:43:09,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:09,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:09,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:09,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:09,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:09,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:09,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:09,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:09,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:09,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:43:09,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:09,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:43:09,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:09,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:09,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:09,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:09,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:09,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:09,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:09,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:09,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:09,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:43:09,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:09,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:43:09,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:09,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:09,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:09,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:09,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:09,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:43:09,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:09,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:09,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:09,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:43:09,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:09,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:43:09,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:09,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:09,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:09,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:09,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:09,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:09,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:09,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:09,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:09,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:43:09,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:09,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 00:43:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:09,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:09,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:09,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:09,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:09,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:09,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:09,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:09,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:09,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:09,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:09,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 00:43:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:09,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:09,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:09,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:09,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:09,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:09,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:09,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:09,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:09,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:09,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:09,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 00:43:09,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:09,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:09,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:09,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:09,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:09,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:09,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:09,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:09,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:09,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:09,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:09,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:43:09,621 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1633624635] [2020-09-25 00:43:09,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:43:09,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 00:43:09,622 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243441670] [2020-09-25 00:43:09,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 00:43:09,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:43:09,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 00:43:09,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 00:43:09,626 INFO L87 Difference]: Start difference. First operand 225 states and 240 transitions. Second operand 4 states. [2020-09-25 00:43:10,127 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:43:10,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:43:10,888 INFO L93 Difference]: Finished difference Result 372 states and 417 transitions. [2020-09-25 00:43:10,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:43:10,889 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-25 00:43:10,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:43:10,898 INFO L225 Difference]: With dead ends: 372 [2020-09-25 00:43:10,898 INFO L226 Difference]: Without dead ends: 257 [2020-09-25 00:43:10,900 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:43:10,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-09-25 00:43:10,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 225. [2020-09-25 00:43:10,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-09-25 00:43:10,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 239 transitions. [2020-09-25 00:43:10,942 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 239 transitions. Word has length 163 [2020-09-25 00:43:10,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:43:10,943 INFO L479 AbstractCegarLoop]: Abstraction has 225 states and 239 transitions. [2020-09-25 00:43:10,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 00:43:10,943 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 239 transitions. [2020-09-25 00:43:10,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 00:43:10,945 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:43:10,946 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:43:10,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:43:10,946 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:43:10,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:43:10,947 INFO L82 PathProgramCache]: Analyzing trace with hash 973971077, now seen corresponding path program 1 times [2020-09-25 00:43:10,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:43:10,947 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [216217851] [2020-09-25 00:43:10,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:43:10,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:11,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:12,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:12,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 00:43:12,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:12,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1684 [2020-09-25 00:43:12,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:12,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 00:43:12,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 00:43:12,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-25 00:43:12,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:13,235 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:43:13,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:43:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:13,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:13,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:13,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:43:13,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:13,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-09-25 00:43:13,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:13,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:13,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:13,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 00:43:13,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:13,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:43:13,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:13,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:13,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:13,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:13,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:13,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:13,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:13,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:13,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:13,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:43:13,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:13,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:43:13,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:13,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:13,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:13,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:13,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:13,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:13,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:13,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:13,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:13,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:43:13,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:13,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:43:13,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:13,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:13,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:13,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:13,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:13,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:43:13,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:13,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:13,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:13,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:43:13,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:13,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:43:13,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:13,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:13,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:13,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:13,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:13,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:13,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:13,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:13,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:13,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:43:13,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:13,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 00:43:13,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:13,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:13,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:13,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 00:43:13,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:13,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:13,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:13,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:13,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:13,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 00:43:13,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:13,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:43:13,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:13,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:13,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:13,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:13,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:13,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:43:13,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:13,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:13,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:13,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:13,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:13,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 00:43:13,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:13,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:13,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:13,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:13,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:13,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:13,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:13,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:13,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:13,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:43:13,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:13,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 00:43:13,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:13,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:13,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:13,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:13,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:13,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:43:13,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:13,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:43:13,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:13,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:43:13,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:13,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 00:43:13,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:13,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:13,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:13,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:13,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:13,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:13,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:13,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:13,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:13,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:13,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:13,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:43:13,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [216217851] [2020-09-25 00:43:13,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:43:13,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:43:13,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017422441] [2020-09-25 00:43:13,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:43:13,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:43:13,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:43:13,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:43:13,744 INFO L87 Difference]: Start difference. First operand 225 states and 239 transitions. Second operand 9 states. [2020-09-25 00:43:14,278 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:43:15,867 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:43:16,408 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 00:43:16,766 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:43:17,100 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:43:17,415 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:43:17,786 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:43:18,086 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:43:18,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:43:18,733 INFO L93 Difference]: Finished difference Result 522 states and 613 transitions. [2020-09-25 00:43:18,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 00:43:18,736 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 171 [2020-09-25 00:43:18,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:43:18,741 INFO L225 Difference]: With dead ends: 522 [2020-09-25 00:43:18,741 INFO L226 Difference]: Without dead ends: 407 [2020-09-25 00:43:18,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 00:43:18,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2020-09-25 00:43:18,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 332. [2020-09-25 00:43:18,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-09-25 00:43:18,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 363 transitions. [2020-09-25 00:43:18,794 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 363 transitions. Word has length 171 [2020-09-25 00:43:18,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:43:18,795 INFO L479 AbstractCegarLoop]: Abstraction has 332 states and 363 transitions. [2020-09-25 00:43:18,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:43:18,795 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 363 transitions. [2020-09-25 00:43:18,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-25 00:43:18,798 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:43:18,798 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:43:18,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:43:18,799 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:43:18,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:43:18,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1373722854, now seen corresponding path program 1 times [2020-09-25 00:43:18,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:43:18,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1902952320] [2020-09-25 00:43:18,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:43:18,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 00:43:18,864 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 00:43:18,865 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 00:43:18,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:43:18,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:43:18 BoogieIcfgContainer [2020-09-25 00:43:18,899 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 00:43:18,901 INFO L168 Benchmark]: Toolchain (without parser) took 29525.22 ms. Allocated memory was 146.3 MB in the beginning and 577.2 MB in the end (delta: 431.0 MB). Free memory was 100.4 MB in the beginning and 225.1 MB in the end (delta: -124.7 MB). Peak memory consumption was 306.2 MB. Max. memory is 7.1 GB. [2020-09-25 00:43:18,902 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 146.3 MB. Free memory was 119.7 MB in the beginning and 119.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 00:43:18,903 INFO L168 Benchmark]: CACSL2BoogieTranslator took 771.46 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 99.7 MB in the beginning and 172.8 MB in the end (delta: -73.1 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2020-09-25 00:43:18,904 INFO L168 Benchmark]: Boogie Preprocessor took 98.63 ms. Allocated memory is still 202.9 MB. Free memory was 172.8 MB in the beginning and 168.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-25 00:43:18,905 INFO L168 Benchmark]: RCFGBuilder took 1308.63 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 168.7 MB in the beginning and 180.3 MB in the end (delta: -11.6 MB). Peak memory consumption was 85.9 MB. Max. memory is 7.1 GB. [2020-09-25 00:43:18,906 INFO L168 Benchmark]: TraceAbstraction took 27337.82 ms. Allocated memory was 235.9 MB in the beginning and 577.2 MB in the end (delta: 341.3 MB). Free memory was 178.9 MB in the beginning and 225.1 MB in the end (delta: -46.3 MB). Peak memory consumption was 295.0 MB. Max. memory is 7.1 GB. [2020-09-25 00:43:18,910 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 146.3 MB. Free memory was 119.7 MB in the beginning and 119.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 771.46 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 99.7 MB in the beginning and 172.8 MB in the end (delta: -73.1 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.63 ms. Allocated memory is still 202.9 MB. Free memory was 172.8 MB in the beginning and 168.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1308.63 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 168.7 MB in the beginning and 180.3 MB in the end (delta: -11.6 MB). Peak memory consumption was 85.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 27337.82 ms. Allocated memory was 235.9 MB in the beginning and 577.2 MB in the end (delta: 341.3 MB). Free memory was 178.9 MB in the beginning and 225.1 MB in the end (delta: -46.3 MB). Peak memory consumption was 295.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 82]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L256] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L458] int waterLevel = 1; [L459] int methaneLevelCritical = 0; [L585] int cleanupTimeShifts = 4; [L686] int pumpRunning = 0; [L687] int systemActive = 1; [L661] int retValue_acc ; [L662] int tmp ; [L666] FCALL select_helpers() [L667] FCALL select_features() [L668] CALL, EXPR valid_product() [L576] int retValue_acc ; [L579] retValue_acc = 1 [L580] return (retValue_acc); [L668] RET, EXPR valid_product() [L668] tmp = valid_product() [L670] COND TRUE \read(tmp) [L672] FCALL setup() [L673] CALL runTest() [L655] CALL test() [L857] int splverifierCounter ; [L858] int tmp ; [L859] int tmp___0 ; [L860] int tmp___1 ; [L861] int tmp___2 ; [L864] splverifierCounter = 0 [L866] COND TRUE 1 [L868] COND TRUE splverifierCounter < 4 [L874] tmp = __VERIFIER_nondet_int() [L876] COND TRUE \read(tmp) [L878] CALL waterRise() [L476] COND TRUE waterLevel < 2 [L477] waterLevel = waterLevel + 1 [L878] RET waterRise() [L884] tmp___0 = __VERIFIER_nondet_int() [L886] COND FALSE !(\read(tmp___0)) [L894] tmp___2 = __VERIFIER_nondet_int() [L896] COND TRUE \read(tmp___2) [L909] CALL timeShift() [L693] COND FALSE !(\read(pumpRunning)) [L700] COND TRUE \read(systemActive) [L702] CALL processEnvironment() [L722] int tmp ; [L725] COND FALSE !(\read(pumpRunning)) [L740] FCALL processEnvironment__wrappee__base() [L702] RET processEnvironment() [L708] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L497] int retValue_acc ; [L500] retValue_acc = methaneLevelCritical [L501] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L529] int retValue_acc ; [L532] retValue_acc = waterLevel [L533] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L792] int retValue_acc ; [L795] retValue_acc = pumpRunning [L796] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L82] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 618 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 27.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 9.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 861 SDtfs, 886 SDslu, 748 SDs, 0 SdLazy, 1656 SolverSat, 256 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=332occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 178 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 16.9s InterpolantComputationTime, 817 NumberOfCodeBlocks, 817 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 637 ConstructedInterpolants, 0 QuantifiedInterpolants, 253252 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...