/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --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_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:40:34,100 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:40:34,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:40:34,131 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:40:34,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:40:34,132 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:40:34,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:40:34,135 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:40:34,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:40:34,138 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:40:34,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:40:34,141 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:40:34,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:40:34,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:40:34,143 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:40:34,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:40:34,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:40:34,147 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:40:34,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:40:34,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:40:34,152 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:40:34,153 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:40:34,154 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:40:34,155 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:40:34,158 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:40:34,158 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:40:34,159 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:40:34,160 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:40:34,160 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:40:34,161 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:40:34,162 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:40:34,162 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:40:34,163 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:40:34,164 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:40:34,165 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:40:34,165 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:40:34,166 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:40:34,166 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:40:34,167 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:40:34,168 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:40:34,168 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:40:34,169 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 08:40:34,199 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:40:34,199 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:40:34,204 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:40:34,204 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:40:34,204 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:40:34,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:40:34,205 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:40:34,205 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:40:34,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:40:34,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:40:34,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:40:34,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:40:34,209 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:40:34,209 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:40:34,209 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:40:34,209 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:40:34,210 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:40:34,210 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:40:34,210 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:40:34,210 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:40:34,210 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:40:34,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:40:34,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:40:34,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:40:34,211 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:40:34,211 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:40:34,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:40:34,212 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:40:34,212 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:40:34,212 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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 08:40:34,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:40:34,695 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:40:34,703 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:40:34,705 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:40:34,707 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:40:34,708 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c [2020-09-25 08:40:34,803 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fb1d2e3f9/14f218114ac448b1989ce2229d87a85a/FLAG4b1d93132 [2020-09-25 08:40:35,460 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:40:35,461 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c [2020-09-25 08:40:35,475 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fb1d2e3f9/14f218114ac448b1989ce2229d87a85a/FLAG4b1d93132 [2020-09-25 08:40:35,669 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fb1d2e3f9/14f218114ac448b1989ce2229d87a85a [2020-09-25 08:40:35,682 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:40:35,687 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:40:35,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:40:35,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:40:35,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:40:35,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:40:35" (1/1) ... [2020-09-25 08:40:35,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:40:35, skipping insertion in model container [2020-09-25 08:40:35,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:40:35" (1/1) ... [2020-09-25 08:40:35,708 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:40:35,759 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:40:36,172 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:40:36,295 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:40:36,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:40:36,405 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:40:36,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:40:36 WrapperNode [2020-09-25 08:40:36,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:40:36,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:40:36,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:40:36,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:40:36,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:40:36" (1/1) ... [2020-09-25 08:40:36,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:40:36" (1/1) ... [2020-09-25 08:40:36,441 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:40:36" (1/1) ... [2020-09-25 08:40:36,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:40:36" (1/1) ... [2020-09-25 08:40:36,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:40:36" (1/1) ... [2020-09-25 08:40:36,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:40:36" (1/1) ... [2020-09-25 08:40:36,499 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:40:36" (1/1) ... [2020-09-25 08:40:36,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:40:36,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:40:36,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:40:36,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:40:36,528 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:40:36" (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 08:40:36,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:40:36,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:40:36,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 08:40:36,633 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 08:40:36,633 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 08:40:36,633 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 08:40:36,633 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 08:40:36,634 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 08:40:36,634 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 08:40:36,634 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 08:40:36,634 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 08:40:36,634 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 08:40:36,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 08:40:36,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 08:40:36,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 08:40:36,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 08:40:36,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 08:40:36,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 08:40:36,636 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 08:40:36,636 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 08:40:36,636 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 08:40:36,637 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 08:40:36,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 08:40:36,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 08:40:36,637 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 08:40:36,637 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 08:40:36,637 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 08:40:36,638 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 08:40:36,638 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:40:36,638 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 08:40:36,638 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 08:40:36,638 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 08:40:36,638 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 08:40:36,639 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 08:40:36,639 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 08:40:36,639 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:40:36,639 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:40:36,639 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 08:40:36,640 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 08:40:36,640 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 08:40:36,640 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 08:40:36,640 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 08:40:36,640 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 08:40:36,640 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 08:40:36,640 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 08:40:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 08:40:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 08:40:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 08:40:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 08:40:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 08:40:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 08:40:36,642 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 08:40:36,642 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 08:40:36,642 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 08:40:36,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:40:36,642 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 08:40:36,642 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:40:36,643 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:40:36,643 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 08:40:36,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:40:36,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:40:36,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:40:36,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:40:36,644 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 08:40:36,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:40:36,644 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 08:40:36,644 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 08:40:36,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:40:36,644 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 08:40:36,645 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 08:40:36,645 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 08:40:36,645 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 08:40:36,645 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 08:40:36,645 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 08:40:36,645 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 08:40:36,646 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 08:40:36,646 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 08:40:36,646 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 08:40:36,646 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 08:40:36,646 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 08:40:36,646 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:40:36,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:40:36,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:40:36,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:40:37,868 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:40:37,868 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 08:40:37,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:40:37 BoogieIcfgContainer [2020-09-25 08:40:37,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:40:37,878 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:40:37,878 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:40:37,888 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:40:37,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:40:35" (1/3) ... [2020-09-25 08:40:37,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45782d87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:40:37, skipping insertion in model container [2020-09-25 08:40:37,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:40:36" (2/3) ... [2020-09-25 08:40:37,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45782d87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:40:37, skipping insertion in model container [2020-09-25 08:40:37,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:40:37" (3/3) ... [2020-09-25 08:40:37,893 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product03.cil.c [2020-09-25 08:40:37,906 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:40:37,922 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:40:37,947 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:40:37,998 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:40:37,998 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:40:37,998 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:40:37,998 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:40:37,999 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:40:37,999 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:40:37,999 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:40:38,000 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:40:38,043 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states. [2020-09-25 08:40:38,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 08:40:38,070 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:40:38,072 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 08:40:38,073 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:40:38,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:40:38,083 INFO L82 PathProgramCache]: Analyzing trace with hash -995917748, now seen corresponding path program 1 times [2020-09-25 08:40:38,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:40:38,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [793247759] [2020-09-25 08:40:38,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:40:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:38,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:38,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:40,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:43,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:43,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 08:40:43,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:40:43,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5074 [2020-09-25 08:40:43,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:43,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:43,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:43,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 08:40:43,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:43,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-09-25 08:40:44,035 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:40:44,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:40:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:44,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:44,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:44,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:40:44,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:44,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 08:40:44,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:44,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:44,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:44,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:44,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:44,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-09-25 08:40:44,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:40:44,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:44,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:44,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:44,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:44,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:44,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:44,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:44,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:44,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:44,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:44,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:44,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:44,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:40:44,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:44,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:44,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:44,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:44,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:44,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:44,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:44,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:44,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:44,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:44,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:44,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:44,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:40:44,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:44,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:44,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:44,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:44,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:44,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:40:44,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:44,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:44,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:44,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:44,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:44,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:44,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:40:44,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:44,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:44,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:44,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:44,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:44,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:44,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:44,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:44,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:44,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:44,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:44,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:44,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 08:40:44,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:44,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:44,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:44,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:44,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:44,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:44,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:44,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:44,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:44,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:40:44,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:44,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:44,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 08:40:44,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:44,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:44,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:44,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:44,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:44,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:40:44,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:44,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:44,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:44,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:40:44,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:44,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:44,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 08:40:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:44,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:44,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:44,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:44,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:44,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:40:44,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:44,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:44,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:44,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:40:44,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:44,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:44,425 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 08:40:44,426 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [793247759] [2020-09-25 08:40:44,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:40:44,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:40:44,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074880393] [2020-09-25 08:40:44,439 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:40:44,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:40:44,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:40:44,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:40:44,462 INFO L87 Difference]: Start difference. First operand 267 states. Second operand 3 states. [2020-09-25 08:40:45,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:40:45,641 INFO L93 Difference]: Finished difference Result 385 states and 461 transitions. [2020-09-25 08:40:45,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:40:45,644 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 08:40:45,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:40:45,662 INFO L225 Difference]: With dead ends: 385 [2020-09-25 08:40:45,663 INFO L226 Difference]: Without dead ends: 249 [2020-09-25 08:40:45,668 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 08:40:45,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-09-25 08:40:45,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 210. [2020-09-25 08:40:45,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-09-25 08:40:45,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 225 transitions. [2020-09-25 08:40:45,762 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 225 transitions. Word has length 153 [2020-09-25 08:40:45,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:40:45,764 INFO L479 AbstractCegarLoop]: Abstraction has 210 states and 225 transitions. [2020-09-25 08:40:45,764 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:40:45,764 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 225 transitions. [2020-09-25 08:40:45,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 08:40:45,769 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:40:45,769 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 08:40:45,770 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:40:45,770 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:40:45,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:40:45,771 INFO L82 PathProgramCache]: Analyzing trace with hash -580992356, now seen corresponding path program 1 times [2020-09-25 08:40:45,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:40:45,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [883014561] [2020-09-25 08:40:45,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:40:45,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:45,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:45,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:47,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:50,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:50,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 08:40:50,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:40:50,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 08:40:50,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:50,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:50,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:50,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 08:40:50,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:40:50,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:51,119 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:40:51,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:40:51,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:51,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:51,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:51,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:40:51,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:51,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 08:40:51,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:51,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:51,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:51,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:51,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:51,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:51,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:40:51,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:51,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:51,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:51,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:51,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:51,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:40:51,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:51,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:51,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:51,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:51,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:51,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:51,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:40:51,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:51,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:51,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:51,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:51,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:51,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:51,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:51,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:51,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:51,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:51,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:51,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:51,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:40:51,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:51,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:51,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:51,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:51,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:51,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:40:51,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:51,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:51,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:51,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:51,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:51,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:51,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:40:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:51,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:51,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:51,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:51,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:51,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:40:51,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:51,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:51,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:51,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:51,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:51,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:51,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 08:40:51,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:51,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:51,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:51,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:51,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:51,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:51,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:51,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:51,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:51,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:40:51,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:51,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:51,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 08:40:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:51,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:51,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:51,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:51,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:51,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:51,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:51,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:51,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:51,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:40:51,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:51,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:51,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 08:40:51,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:51,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:51,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:51,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:51,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:51,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:51,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:51,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:51,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:51,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:40:51,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:51,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:51,339 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 08:40:51,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [883014561] [2020-09-25 08:40:51,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:40:51,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:40:51,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180073680] [2020-09-25 08:40:51,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:40:51,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:40:51,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:40:51,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:40:51,345 INFO L87 Difference]: Start difference. First operand 210 states and 225 transitions. Second operand 4 states. [2020-09-25 08:40:52,073 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:40:52,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:40:52,679 INFO L93 Difference]: Finished difference Result 293 states and 326 transitions. [2020-09-25 08:40:52,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:40:52,680 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 08:40:52,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:40:52,688 INFO L225 Difference]: With dead ends: 293 [2020-09-25 08:40:52,688 INFO L226 Difference]: Without dead ends: 232 [2020-09-25 08:40:52,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:40:52,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-09-25 08:40:52,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 200. [2020-09-25 08:40:52,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-09-25 08:40:52,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 212 transitions. [2020-09-25 08:40:52,760 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 212 transitions. Word has length 154 [2020-09-25 08:40:52,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:40:52,761 INFO L479 AbstractCegarLoop]: Abstraction has 200 states and 212 transitions. [2020-09-25 08:40:52,762 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:40:52,762 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 212 transitions. [2020-09-25 08:40:52,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 08:40:52,769 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:40:52,770 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 08:40:52,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:40:52,775 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:40:52,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:40:52,775 INFO L82 PathProgramCache]: Analyzing trace with hash 229202311, now seen corresponding path program 1 times [2020-09-25 08:40:52,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:40:52,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1732335324] [2020-09-25 08:40:52,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:40:52,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:52,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:53,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:56,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:56,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 08:40:56,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:40:56,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3931 [2020-09-25 08:40:56,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:56,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:56,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 08:40:56,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 08:40:56,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 08:40:56,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:57,152 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:40:57,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:40:57,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:57,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:57,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:57,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:40:57,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:57,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-09-25 08:40:57,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:57,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:57,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:57,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:57,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 08:40:57,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:57,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:40:57,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:57,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:57,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:57,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:57,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:57,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:40:57,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:57,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:57,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:57,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:57,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:40:57,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:40:57,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:40:57,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:57,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:57,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:57,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:57,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:57,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:40:57,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:57,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:57,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:57,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:57,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:40:57,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:57,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:40:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:57,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:57,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:57,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:57,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:57,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 08:40:57,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:57,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:57,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:57,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:57,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:40:57,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 08:40:57,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:40:57,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:57,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:57,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:57,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:57,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:57,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:40:57,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:57,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:57,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:57,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:57,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:40:57,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:57,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 08:40:57,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:57,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:57,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:57,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:57,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:57,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:40:57,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:57,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:57,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:57,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:57,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:40:57,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:57,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 08:40:57,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:57,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:57,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:57,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:57,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:57,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:40:57,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:57,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:57,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:40:57,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:57,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:40:57,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:57,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 08:40:57,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:57,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:57,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:57,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:57,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:57,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:57,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:57,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:57,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:57,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:40:57,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:57,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:57,700 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 08:40:57,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1732335324] [2020-09-25 08:40:57,702 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:40:57,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 08:40:57,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875892459] [2020-09-25 08:40:57,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 08:40:57,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:40:57,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 08:40:57,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:40:57,708 INFO L87 Difference]: Start difference. First operand 200 states and 212 transitions. Second operand 8 states. [2020-09-25 08:40:58,492 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:40:59,863 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:41:00,154 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:41:00,525 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:41:00,851 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:41:01,157 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:41:01,462 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:41:01,744 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:41:02,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:41:02,104 INFO L93 Difference]: Finished difference Result 398 states and 455 transitions. [2020-09-25 08:41:02,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 08:41:02,104 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 163 [2020-09-25 08:41:02,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:41:02,108 INFO L225 Difference]: With dead ends: 398 [2020-09-25 08:41:02,108 INFO L226 Difference]: Without dead ends: 308 [2020-09-25 08:41:02,109 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 08:41:02,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2020-09-25 08:41:02,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 280. [2020-09-25 08:41:02,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-09-25 08:41:02,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 307 transitions. [2020-09-25 08:41:02,163 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 307 transitions. Word has length 163 [2020-09-25 08:41:02,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:41:02,163 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 307 transitions. [2020-09-25 08:41:02,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 08:41:02,164 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 307 transitions. [2020-09-25 08:41:02,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-25 08:41:02,168 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:41:02,168 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] [2020-09-25 08:41:02,169 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:41:02,169 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:41:02,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:41:02,170 INFO L82 PathProgramCache]: Analyzing trace with hash 1019501956, now seen corresponding path program 1 times [2020-09-25 08:41:02,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:41:02,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1521108036] [2020-09-25 08:41:02,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:41:02,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:02,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:03,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:03,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 08:41:03,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:03,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1080 [2020-09-25 08:41:03,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:03,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:03,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:41:03,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 08:41:03,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 08:41:03,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:03,583 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:41:03,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:41:03,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:03,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:03,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:03,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:41:03,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:03,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-09-25 08:41:03,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:03,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:03,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:03,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:03,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 08:41:03,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:03,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:41:03,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:03,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:03,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:03,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:41:03,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:03,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:41:03,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:03,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:03,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:03,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:03,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:41:03,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:03,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:41:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:03,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:03,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:03,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:41:03,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:03,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:41:03,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:03,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:03,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:03,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:03,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:41:03,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:03,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:41:03,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:03,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:03,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:03,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:03,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:03,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:41:03,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:03,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:03,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:03,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:03,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:41:03,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:03,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:41:03,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:03,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:04,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:04,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:41:04,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:04,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:41:04,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:04,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:04,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:04,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:04,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:41:04,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:04,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 08:41:04,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:04,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:04,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:04,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:41:04,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:04,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:41:04,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:04,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:04,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:04,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:04,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:41:04,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:04,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 08:41:04,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:04,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:04,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:04,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:04,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:04,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:41:04,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:04,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:04,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:04,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:41:04,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:04,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:04,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-25 08:41:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:04,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:04,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:04,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:04,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:04,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:41:04,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:04,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:04,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:04,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:41:04,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:04,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:04,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 08:41:04,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:04,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:04,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:04,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:04,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:04,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:41:04,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:04,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:04,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:04,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:41:04,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:04,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:04,117 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 08:41:04,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1521108036] [2020-09-25 08:41:04,118 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:41:04,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:41:04,119 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834621918] [2020-09-25 08:41:04,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:41:04,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:41:04,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:41:04,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:41:04,121 INFO L87 Difference]: Start difference. First operand 280 states and 307 transitions. Second operand 5 states. [2020-09-25 08:41:04,876 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:41:06,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:41:06,213 INFO L93 Difference]: Finished difference Result 642 states and 740 transitions. [2020-09-25 08:41:06,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:41:06,213 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-09-25 08:41:06,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:41:06,220 INFO L225 Difference]: With dead ends: 642 [2020-09-25 08:41:06,220 INFO L226 Difference]: Without dead ends: 472 [2020-09-25 08:41:06,222 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:41:06,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2020-09-25 08:41:06,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 429. [2020-09-25 08:41:06,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2020-09-25 08:41:06,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 479 transitions. [2020-09-25 08:41:06,291 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 479 transitions. Word has length 168 [2020-09-25 08:41:06,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:41:06,292 INFO L479 AbstractCegarLoop]: Abstraction has 429 states and 479 transitions. [2020-09-25 08:41:06,292 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:41:06,292 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 479 transitions. [2020-09-25 08:41:06,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 08:41:06,295 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:41:06,296 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 08:41:06,296 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:41:06,296 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:41:06,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:41:06,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1257129521, now seen corresponding path program 1 times [2020-09-25 08:41:06,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:41:06,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [583535156] [2020-09-25 08:41:06,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:41:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 08:41:06,356 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 08:41:06,357 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 08:41:06,362 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:41:06,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 08:41:06 BoogieIcfgContainer [2020-09-25 08:41:06,388 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 08:41:06,391 INFO L168 Benchmark]: Toolchain (without parser) took 30706.90 ms. Allocated memory was 148.4 MB in the beginning and 534.8 MB in the end (delta: 386.4 MB). Free memory was 102.8 MB in the beginning and 132.5 MB in the end (delta: -29.6 MB). Peak memory consumption was 356.8 MB. Max. memory is 7.1 GB. [2020-09-25 08:41:06,392 INFO L168 Benchmark]: CDTParser took 0.66 ms. Allocated memory is still 148.4 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 08:41:06,393 INFO L168 Benchmark]: CACSL2BoogieTranslator took 718.03 ms. Allocated memory was 148.4 MB in the beginning and 205.0 MB in the end (delta: 56.6 MB). Free memory was 102.2 MB in the beginning and 175.7 MB in the end (delta: -73.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-09-25 08:41:06,393 INFO L168 Benchmark]: Boogie Preprocessor took 116.51 ms. Allocated memory is still 205.0 MB. Free memory was 175.7 MB in the beginning and 171.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-09-25 08:41:06,394 INFO L168 Benchmark]: RCFGBuilder took 1353.29 ms. Allocated memory was 205.0 MB in the beginning and 233.8 MB in the end (delta: 28.8 MB). Free memory was 171.1 MB in the beginning and 179.0 MB in the end (delta: -7.9 MB). Peak memory consumption was 81.7 MB. Max. memory is 7.1 GB. [2020-09-25 08:41:06,395 INFO L168 Benchmark]: TraceAbstraction took 28510.33 ms. Allocated memory was 233.8 MB in the beginning and 534.8 MB in the end (delta: 300.9 MB). Free memory was 177.6 MB in the beginning and 132.5 MB in the end (delta: 45.1 MB). Peak memory consumption was 346.1 MB. Max. memory is 7.1 GB. [2020-09-25 08:41:06,399 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66 ms. Allocated memory is still 148.4 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 718.03 ms. Allocated memory was 148.4 MB in the beginning and 205.0 MB in the end (delta: 56.6 MB). Free memory was 102.2 MB in the beginning and 175.7 MB in the end (delta: -73.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.51 ms. Allocated memory is still 205.0 MB. Free memory was 175.7 MB in the beginning and 171.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1353.29 ms. Allocated memory was 205.0 MB in the beginning and 233.8 MB in the end (delta: 28.8 MB). Free memory was 171.1 MB in the beginning and 179.0 MB in the end (delta: -7.9 MB). Peak memory consumption was 81.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28510.33 ms. Allocated memory was 233.8 MB in the beginning and 534.8 MB in the end (delta: 300.9 MB). Free memory was 177.6 MB in the beginning and 132.5 MB in the end (delta: 45.1 MB). Peak memory consumption was 346.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 650]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L119] int pumpRunning = 0; [L120] int systemActive = 1; [L411] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L690] int cleanupTimeShifts = 4; [L786] int waterLevel = 1; [L787] int methaneLevelCritical = 0; [L763] int retValue_acc ; [L764] int tmp ; [L768] FCALL select_helpers() [L769] FCALL select_features() [L770] CALL, EXPR valid_product() [L637] int retValue_acc ; [L640] retValue_acc = 1 [L641] return (retValue_acc); [L770] RET, EXPR valid_product() [L770] tmp = valid_product() [L772] COND TRUE \read(tmp) [L774] FCALL setup() [L775] CALL runTest() [L757] CALL test() [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) [L67] CALL waterRise() [L804] COND TRUE waterLevel < 2 [L805] waterLevel = waterLevel + 1 [L67] RET waterRise() [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L100] CALL timeShift() [L127] COND FALSE !(\read(pumpRunning)) [L134] COND TRUE \read(systemActive) [L136] FCALL processEnvironment() [L142] CALL __utac_acc__Specification3_spec__1() [L657] int tmp ; [L658] int tmp___0 ; [L659] int tmp___1 ; [L663] CALL, EXPR isMethaneLevelCritical() [L825] int retValue_acc ; [L828] retValue_acc = methaneLevelCritical [L829] return (retValue_acc); [L663] RET, EXPR isMethaneLevelCritical() [L663] tmp = isMethaneLevelCritical() [L665] COND FALSE !(\read(tmp)) [L669] CALL, EXPR getWaterLevel() [L857] int retValue_acc ; [L860] retValue_acc = waterLevel [L861] return (retValue_acc); [L669] RET, EXPR getWaterLevel() [L669] tmp___0 = getWaterLevel() [L671] COND TRUE tmp___0 == 2 [L673] CALL, EXPR isPumpRunning() [L182] int retValue_acc ; [L185] retValue_acc = pumpRunning [L186] return (retValue_acc); [L673] RET, EXPR isPumpRunning() [L673] tmp___1 = isPumpRunning() [L675] COND FALSE !(\read(tmp___1)) [L679] CALL __automaton_fail() [L650] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 584 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 28.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 9.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 783 SDtfs, 771 SDslu, 781 SDs, 0 SdLazy, 1521 SolverSat, 223 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 77 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=429occurred 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, 142 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 18.0s InterpolantComputationTime, 809 NumberOfCodeBlocks, 809 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 634 ConstructedInterpolants, 0 QuantifiedInterpolants, 250120 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...