/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:02:32,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:02:32,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:02:32,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:02:32,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:02:32,239 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:02:32,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:02:32,245 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:02:32,248 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:02:32,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:02:32,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:02:32,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:02:32,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:02:32,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:02:32,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:02:32,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:02:32,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:02:32,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:02:32,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:02:32,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:02:32,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:02:32,275 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:02:32,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:02:32,277 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:02:32,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:02:32,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:02:32,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:02:32,285 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:02:32,285 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:02:32,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:02:32,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:02:32,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:02:32,289 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:02:32,290 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:02:32,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:02:32,291 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:02:32,292 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:02:32,292 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:02:32,292 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:02:32,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:02:32,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:02:32,296 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 18:02:32,343 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:02:32,343 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:02:32,345 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:02:32,345 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:02:32,346 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:02:32,346 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:02:32,346 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:02:32,346 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:02:32,347 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:02:32,347 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:02:32,348 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:02:32,348 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:02:32,348 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:02:32,349 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:02:32,349 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:02:32,349 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:02:32,349 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:02:32,350 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:02:32,350 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:02:32,350 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:02:32,350 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:02:32,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:02:32,351 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:02:32,351 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:02:32,351 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:02:32,351 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:02:32,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:02:32,352 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:02:32,352 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:02:32,352 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 18:02:32,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:02:32,807 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:02:32,811 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:02:32,813 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:02:32,814 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:02:32,815 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2020-09-24 18:02:32,905 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/efd963daf/80d8ac35121d44c79480798133301fe6/FLAGeb8585d51 [2020-09-24 18:02:33,556 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:02:33,557 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2020-09-24 18:02:33,574 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/efd963daf/80d8ac35121d44c79480798133301fe6/FLAGeb8585d51 [2020-09-24 18:02:33,774 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/efd963daf/80d8ac35121d44c79480798133301fe6 [2020-09-24 18:02:33,789 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:02:33,795 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:02:33,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:02:33,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:02:33,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:02:33,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:02:33" (1/1) ... [2020-09-24 18:02:33,809 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 24.09 06:02:33, skipping insertion in model container [2020-09-24 18:02:33,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:02:33" (1/1) ... [2020-09-24 18:02:33,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:02:33,890 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:02:34,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:02:34,407 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:02:34,499 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:02:34,539 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:02:34,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:34 WrapperNode [2020-09-24 18:02:34,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:02:34,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:02:34,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:02:34,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:02:34,559 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:34" (1/1) ... [2020-09-24 18:02:34,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:34" (1/1) ... [2020-09-24 18:02:34,581 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:34" (1/1) ... [2020-09-24 18:02:34,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:34" (1/1) ... [2020-09-24 18:02:34,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:34" (1/1) ... [2020-09-24 18:02:34,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:34" (1/1) ... [2020-09-24 18:02:34,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:34" (1/1) ... [2020-09-24 18:02:34,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:02:34,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:02:34,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:02:34,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:02:34,668 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:34" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:02:34,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:02:34,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:02:34,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:02:34,763 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:02:34,763 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:02:34,763 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:02:34,763 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:02:34,763 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:02:34,764 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 18:02:34,764 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 18:02:34,764 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 18:02:34,764 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:02:34,764 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 18:02:34,765 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:02:34,765 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:02:34,765 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:02:34,765 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:02:34,765 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:02:34,766 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 18:02:34,766 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 18:02:34,766 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 18:02:34,766 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 18:02:34,766 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:02:34,767 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:02:34,767 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:02:34,767 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:02:34,767 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:02:34,767 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:02:34,767 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:02:34,768 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 18:02:34,768 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 18:02:34,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:02:34,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:02:34,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:02:34,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:02:34,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:02:34,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:02:34,769 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:02:34,769 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:02:34,769 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:02:34,769 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:02:34,769 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:02:34,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:02:34,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 18:02:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:02:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:02:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:02:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:02:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:02:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:02:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:02:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:02:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:02:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:02:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 18:02:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 18:02:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:02:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:02:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:02:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:02:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:02:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 18:02:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 18:02:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 18:02:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:02:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 18:02:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 18:02:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 18:02:34,774 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 18:02:34,774 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 18:02:34,774 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:02:34,774 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 18:02:34,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:02:34,774 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:02:34,775 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:02:34,775 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:02:34,775 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:02:34,775 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:02:34,775 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:02:34,775 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:02:34,776 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:02:34,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:02:34,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:02:34,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:02:34,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:02:34,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:02:34,777 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:02:34,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:02:34,777 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:02:34,777 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:02:34,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:02:34,777 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:02:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:02:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:02:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:02:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:02:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:02:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:02:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:02:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:02:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:02:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:02:35,859 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:02:35,859 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:02:35,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:02:35 BoogieIcfgContainer [2020-09-24 18:02:35,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:02:35,868 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:02:35,868 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:02:35,872 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:02:35,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:02:33" (1/3) ... [2020-09-24 18:02:35,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5beb6668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:02:35, skipping insertion in model container [2020-09-24 18:02:35,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:34" (2/3) ... [2020-09-24 18:02:35,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5beb6668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:02:35, skipping insertion in model container [2020-09-24 18:02:35,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:02:35" (3/3) ... [2020-09-24 18:02:35,876 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2020-09-24 18:02:35,887 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:02:35,898 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:02:35,920 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:02:35,952 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:02:35,952 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:02:35,953 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:02:35,953 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:02:35,953 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:02:35,953 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:02:35,953 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:02:35,954 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:02:35,982 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-09-24 18:02:36,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 18:02:36,001 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:02:36,002 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] [2020-09-24 18:02:36,003 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:02:36,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:02:36,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1409886201, now seen corresponding path program 1 times [2020-09-24 18:02:36,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:02:36,023 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [306099457] [2020-09-24 18:02:36,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:02:36,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:36,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:36,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:38,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:41,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:41,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 18:02:41,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:02:41,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-24 18:02:41,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:41,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:41,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 18:02:41,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:41,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 18:02:41,967 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:02:41,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:02:41,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:41,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:42,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:42,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:02:42,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:42,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-09-24 18:02:42,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:42,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:42,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:42,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:42,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:42,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:02:42,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:42,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:42,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:42,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:42,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:42,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:42,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:42,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:42,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:42,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:42,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:42,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:02:42,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:42,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:42,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:42,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:42,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:42,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:42,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:42,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:42,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:42,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:42,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:42,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:02:42,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:42,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:42,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:42,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:42,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:42,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:02:42,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:42,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:42,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:42,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:42,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:42,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:02:42,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:42,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:42,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:42,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:42,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:42,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:42,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:42,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:42,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:42,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:42,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:42,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:02:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:42,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:42,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:42,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:42,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:42,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:02:42,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:42,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:42,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:42,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:42,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:42,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:02:42,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:42,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:42,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:42,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:42,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:42,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:42,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:42,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:42,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:42,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:42,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:42,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 18:02:42,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:42,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:42,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:42,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:42,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:42,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:42,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:42,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:42,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:42,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:42,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:42,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:02:42,346 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [306099457] [2020-09-24 18:02:42,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:02:42,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:02:42,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482089081] [2020-09-24 18:02:42,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:02:42,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:02:42,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:02:42,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:02:42,382 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 3 states. [2020-09-24 18:02:43,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:02:43,931 INFO L93 Difference]: Finished difference Result 596 states and 710 transitions. [2020-09-24 18:02:43,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:02:43,934 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 18:02:43,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:02:43,955 INFO L225 Difference]: With dead ends: 596 [2020-09-24 18:02:43,955 INFO L226 Difference]: Without dead ends: 359 [2020-09-24 18:02:43,963 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 [2020-09-24 18:02:43,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2020-09-24 18:02:44,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 311. [2020-09-24 18:02:44,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 311 states. [2020-09-24 18:02:44,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 343 transitions. [2020-09-24 18:02:44,095 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 343 transitions. Word has length 153 [2020-09-24 18:02:44,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:02:44,098 INFO L479 AbstractCegarLoop]: Abstraction has 311 states and 343 transitions. [2020-09-24 18:02:44,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:02:44,100 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 343 transitions. [2020-09-24 18:02:44,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 18:02:44,110 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:02:44,117 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] [2020-09-24 18:02:44,117 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:02:44,118 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:02:44,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:02:44,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1484490913, now seen corresponding path program 1 times [2020-09-24 18:02:44,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:02:44,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1712762600] [2020-09-24 18:02:44,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:02:44,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:44,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:44,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:45,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:49,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:49,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 18:02:49,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:02:49,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-24 18:02:49,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:49,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:49,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 18:02:49,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:02:49,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:49,502 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:02:49,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:02:49,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:49,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:49,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:49,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:02:49,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:49,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 18:02:49,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:49,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:49,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:49,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:49,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:49,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:02:49,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:49,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:49,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:49,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:49,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:49,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:49,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:49,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:49,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:49,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:49,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:49,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:02:49,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:49,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:49,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:49,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:49,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:49,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:49,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:49,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:49,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:49,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:49,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:49,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:02:49,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:49,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:49,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:49,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:49,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:49,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:02:49,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:49,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:49,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:49,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:49,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:49,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:02:49,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:49,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:49,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:49,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:49,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:49,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:02:49,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:49,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:49,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:49,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:49,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:49,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 18:02:49,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:49,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:49,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:49,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:49,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:49,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:49,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:49,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:49,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:49,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:49,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:49,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 18:02:49,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:49,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:49,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:49,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:49,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:49,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:49,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:49,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:49,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:49,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:49,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:49,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 18:02:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:49,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:49,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:49,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:49,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:49,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:49,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:49,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:49,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:49,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:49,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:49,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:02:49,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1712762600] [2020-09-24 18:02:49,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:02:49,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:02:49,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769066155] [2020-09-24 18:02:49,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:02:49,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:02:49,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:02:49,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:02:49,749 INFO L87 Difference]: Start difference. First operand 311 states and 343 transitions. Second operand 4 states. [2020-09-24 18:02:50,361 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:02:51,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:02:51,604 INFO L93 Difference]: Finished difference Result 503 states and 573 transitions. [2020-09-24 18:02:51,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 18:02:51,605 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 18:02:51,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:02:51,609 INFO L225 Difference]: With dead ends: 503 [2020-09-24 18:02:51,610 INFO L226 Difference]: Without dead ends: 342 [2020-09-24 18:02:51,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:02:51,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-09-24 18:02:51,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 301. [2020-09-24 18:02:51,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-09-24 18:02:51,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 330 transitions. [2020-09-24 18:02:51,666 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 330 transitions. Word has length 154 [2020-09-24 18:02:51,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:02:51,667 INFO L479 AbstractCegarLoop]: Abstraction has 301 states and 330 transitions. [2020-09-24 18:02:51,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:02:51,667 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 330 transitions. [2020-09-24 18:02:51,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 18:02:51,670 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:02:51,670 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:02:51,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:02:51,670 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:02:51,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:02:51,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1631977851, now seen corresponding path program 1 times [2020-09-24 18:02:51,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:02:51,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [731156790] [2020-09-24 18:02:51,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:02:51,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:51,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:51,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:54,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:54,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 18:02:54,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:02:54,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2933 [2020-09-24 18:02:54,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:54,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:54,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 18:02:54,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:02:54,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:54,931 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:02:54,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:02:54,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:54,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:55,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:55,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:02:55,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:55,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-24 18:02:55,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:55,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:55,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:55,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:55,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:55,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:02:55,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:55,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:55,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:55,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:55,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:55,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:55,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:55,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:55,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:55,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:55,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:55,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:02:55,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:55,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:55,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:55,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:55,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:55,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:55,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:55,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:55,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:55,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:55,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:55,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:02:55,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:55,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:55,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:55,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:55,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:55,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:02:55,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:55,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:55,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:55,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:55,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:55,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:02:55,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:55,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:55,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:55,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:55,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:55,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:02:55,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:55,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:55,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:55,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:55,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:55,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 18:02:55,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:55,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:55,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:55,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:02:55,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:55,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:55,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:55,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:55,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:55,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 18:02:55,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:55,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 18:02:55,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:55,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:55,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:55,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:55,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:55,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:02:55,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:55,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:55,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:55,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:55,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:55,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 18:02:55,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:55,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:55,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:55,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:55,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:55,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 18:02:55,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:55,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:55,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:55,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:55,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:55,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 18:02:55,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:55,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:55,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:55,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:55,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:55,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:55,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:55,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:55,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:55,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:55,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:55,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:02:55,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [731156790] [2020-09-24 18:02:55,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:02:55,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:02:55,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239448332] [2020-09-24 18:02:55,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:02:55,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:02:55,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:02:55,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:02:55,187 INFO L87 Difference]: Start difference. First operand 301 states and 330 transitions. Second operand 5 states. [2020-09-24 18:02:55,658 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:02:57,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:02:57,992 INFO L93 Difference]: Finished difference Result 761 states and 887 transitions. [2020-09-24 18:02:57,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:02:57,993 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-24 18:02:57,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:02:57,999 INFO L225 Difference]: With dead ends: 761 [2020-09-24 18:02:57,999 INFO L226 Difference]: Without dead ends: 570 [2020-09-24 18:02:58,000 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:02:58,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-09-24 18:02:58,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 482. [2020-09-24 18:02:58,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2020-09-24 18:02:58,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 541 transitions. [2020-09-24 18:02:58,089 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 541 transitions. Word has length 167 [2020-09-24 18:02:58,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:02:58,090 INFO L479 AbstractCegarLoop]: Abstraction has 482 states and 541 transitions. [2020-09-24 18:02:58,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:02:58,090 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 541 transitions. [2020-09-24 18:02:58,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 18:02:58,093 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:02:58,093 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:02:58,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:02:58,094 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:02:58,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:02:58,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1733471064, now seen corresponding path program 1 times [2020-09-24 18:02:58,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:02:58,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [721303849] [2020-09-24 18:02:58,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:02:58,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:58,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:59,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:59,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 18:02:59,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:59,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1630 [2020-09-24 18:02:59,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:59,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 18:02:59,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 18:02:59,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-24 18:02:59,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:00,139 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:03:00,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:03:00,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:00,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:00,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:00,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:03:00,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:00,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-09-24 18:03:00,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:00,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:03:00,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:00,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 18:03:00,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:00,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:03:00,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:00,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:00,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:00,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:00,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:00,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:00,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:00,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:03:00,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:00,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:03:00,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:00,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:03:00,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:00,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:00,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:00,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:00,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:00,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:00,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:00,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:03:00,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:00,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:03:00,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:00,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:03:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:00,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:00,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:00,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:00,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:00,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:03:00,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:00,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:03:00,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:00,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:03:00,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:00,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:03:00,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:00,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:00,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:00,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:00,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:00,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:00,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:00,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:03:00,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:00,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:03:00,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:00,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 18:03:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:00,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:00,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:00,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:03:00,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:00,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:03:00,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:00,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:03:00,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:00,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:03:00,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:00,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 18:03:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:00,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:00,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:00,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:00,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:00,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:03:00,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:00,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:03:00,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:00,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:03:00,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:00,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 18:03:00,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:00,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:00,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:00,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:00,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:00,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:03:00,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:00,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:03:00,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:00,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:03:00,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:00,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 18:03:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:00,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:00,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:00,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:00,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:00,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:03:00,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:00,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:00,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:03:00,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:00,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:00,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:03:00,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [721303849] [2020-09-24 18:03:00,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:03:00,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 18:03:00,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629083818] [2020-09-24 18:03:00,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 18:03:00,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:03:00,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 18:03:00,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 18:03:00,585 INFO L87 Difference]: Start difference. First operand 482 states and 541 transitions. Second operand 9 states. [2020-09-24 18:03:01,034 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:03:03,217 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:03,863 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-24 18:03:04,274 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:04,649 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:03:04,957 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:03:05,262 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:03:05,566 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:03:06,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:03:06,927 INFO L93 Difference]: Finished difference Result 1328 states and 1597 transitions. [2020-09-24 18:03:06,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 18:03:06,928 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-24 18:03:06,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:03:06,958 INFO L225 Difference]: With dead ends: 1328 [2020-09-24 18:03:06,958 INFO L226 Difference]: Without dead ends: 956 [2020-09-24 18:03:06,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 18:03:06,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2020-09-24 18:03:07,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 849. [2020-09-24 18:03:07,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 849 states. [2020-09-24 18:03:07,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 975 transitions. [2020-09-24 18:03:07,086 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 975 transitions. Word has length 172 [2020-09-24 18:03:07,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:03:07,087 INFO L479 AbstractCegarLoop]: Abstraction has 849 states and 975 transitions. [2020-09-24 18:03:07,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 18:03:07,087 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 975 transitions. [2020-09-24 18:03:07,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-24 18:03:07,092 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:03:07,092 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:03:07,092 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:03:07,092 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:03:07,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:03:07,093 INFO L82 PathProgramCache]: Analyzing trace with hash 468409622, now seen corresponding path program 1 times [2020-09-24 18:03:07,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:03:07,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [37541490] [2020-09-24 18:03:07,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:03:07,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:07,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:07,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:08,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:09,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:12,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:12,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-24 18:03:12,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:03:12,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-24 18:03:12,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:12,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:03:12,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-24 18:03:12,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:03:12,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:12,484 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:03:12,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:03:12,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:12,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:12,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:12,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:03:12,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:12,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 18:03:12,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:12,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:12,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:12,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:12,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:12,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:03:12,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:12,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:12,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:12,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:12,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:12,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:12,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:12,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:12,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:12,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:12,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:12,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:03:12,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:12,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:12,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:12,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:12,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:12,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:12,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:12,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:12,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:12,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:12,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:12,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:03:12,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:12,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:12,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:12,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:12,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:12,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:03:12,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:12,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:12,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:12,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:12,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:12,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:03:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:12,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:12,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:12,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:12,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:12,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:03:12,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:12,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:12,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:12,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:12,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:12,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 18:03:12,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:12,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:12,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:12,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:03:12,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:12,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:03:12,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:12,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:03:12,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:12,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 18:03:12,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:12,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 18:03:12,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:12,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:12,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:12,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:03:12,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:12,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:03:12,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:12,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:12,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 18:03:12,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:12,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:12,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 18:03:12,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:12,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:12,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:12,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:12,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:12,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:12,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:12,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:12,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:03:12,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:12,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:12,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 18:03:12,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:12,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:12,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:12,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:12,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:12,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:12,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:12,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:12,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:03:12,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:12,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:12,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-24 18:03:12,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:12,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:12,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:12,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:12,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:12,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:12,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:12,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:12,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:03:12,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:12,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:12,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:03:12,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [37541490] [2020-09-24 18:03:12,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:03:12,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:03:12,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384422472] [2020-09-24 18:03:12,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:03:12,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:03:12,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:03:12,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:03:12,795 INFO L87 Difference]: Start difference. First operand 849 states and 975 transitions. Second operand 6 states. [2020-09-24 18:03:13,471 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:03:16,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:03:16,562 INFO L93 Difference]: Finished difference Result 1966 states and 2366 transitions. [2020-09-24 18:03:16,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 18:03:16,563 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2020-09-24 18:03:16,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:03:16,570 INFO L225 Difference]: With dead ends: 1966 [2020-09-24 18:03:16,570 INFO L226 Difference]: Without dead ends: 1227 [2020-09-24 18:03:16,573 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:03:16,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2020-09-24 18:03:16,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 1131. [2020-09-24 18:03:16,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1131 states. [2020-09-24 18:03:16,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1131 states to 1131 states and 1288 transitions. [2020-09-24 18:03:16,767 INFO L78 Accepts]: Start accepts. Automaton has 1131 states and 1288 transitions. Word has length 177 [2020-09-24 18:03:16,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:03:16,768 INFO L479 AbstractCegarLoop]: Abstraction has 1131 states and 1288 transitions. [2020-09-24 18:03:16,768 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:03:16,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1131 states and 1288 transitions. [2020-09-24 18:03:16,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-24 18:03:16,773 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:03:16,773 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:03:16,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:03:16,774 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:03:16,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:03:16,774 INFO L82 PathProgramCache]: Analyzing trace with hash 102633961, now seen corresponding path program 1 times [2020-09-24 18:03:16,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:03:16,778 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1046308054] [2020-09-24 18:03:16,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:03:16,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 18:03:16,840 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 18:03:16,840 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 18:03:16,845 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 18:03:16,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:03:16 BoogieIcfgContainer [2020-09-24 18:03:16,885 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 18:03:16,888 INFO L168 Benchmark]: Toolchain (without parser) took 43096.66 ms. Allocated memory was 141.0 MB in the beginning and 691.0 MB in the end (delta: 550.0 MB). Free memory was 103.1 MB in the beginning and 495.9 MB in the end (delta: -392.7 MB). Peak memory consumption was 157.2 MB. Max. memory is 7.1 GB. [2020-09-24 18:03:16,889 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.7 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 18:03:16,896 INFO L168 Benchmark]: CACSL2BoogieTranslator took 742.63 ms. Allocated memory was 141.0 MB in the beginning and 206.0 MB in the end (delta: 65.0 MB). Free memory was 102.5 MB in the beginning and 174.9 MB in the end (delta: -72.4 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. [2020-09-24 18:03:16,897 INFO L168 Benchmark]: Boogie Preprocessor took 123.40 ms. Allocated memory is still 206.0 MB. Free memory was 174.9 MB in the beginning and 170.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-09-24 18:03:16,905 INFO L168 Benchmark]: RCFGBuilder took 1201.45 ms. Allocated memory was 206.0 MB in the beginning and 236.5 MB in the end (delta: 30.4 MB). Free memory was 170.2 MB in the beginning and 169.3 MB in the end (delta: 937.5 kB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. [2020-09-24 18:03:16,906 INFO L168 Benchmark]: TraceAbstraction took 41017.03 ms. Allocated memory was 236.5 MB in the beginning and 691.0 MB in the end (delta: 454.6 MB). Free memory was 169.3 MB in the beginning and 495.9 MB in the end (delta: -326.6 MB). Peak memory consumption was 128.0 MB. Max. memory is 7.1 GB. [2020-09-24 18:03:16,920 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.7 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 742.63 ms. Allocated memory was 141.0 MB in the beginning and 206.0 MB in the end (delta: 65.0 MB). Free memory was 102.5 MB in the beginning and 174.9 MB in the end (delta: -72.4 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.40 ms. Allocated memory is still 206.0 MB. Free memory was 174.9 MB in the beginning and 170.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1201.45 ms. Allocated memory was 206.0 MB in the beginning and 236.5 MB in the end (delta: 30.4 MB). Free memory was 170.2 MB in the beginning and 169.3 MB in the end (delta: 937.5 kB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 41017.03 ms. Allocated memory was 236.5 MB in the beginning and 691.0 MB in the end (delta: 454.6 MB). Free memory was 169.3 MB in the beginning and 495.9 MB in the end (delta: -326.6 MB). Peak memory consumption was 128.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 996]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L90] int pumpRunning = 0; [L91] int systemActive = 1; [L427] int waterLevel = 1; [L428] int methaneLevelCritical = 0; [L699] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L896] int cleanupTimeShifts = 4; [L969] int retValue_acc ; [L970] int tmp ; [L974] FCALL select_helpers() [L975] FCALL select_features() [L976] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L976] RET, EXPR valid_product() [L976] tmp = valid_product() [L978] COND TRUE \read(tmp) [L980] FCALL setup() [L981] CALL runTest() [L963] CALL test() [L358] int splverifierCounter ; [L359] int tmp ; [L360] int tmp___0 ; [L361] int tmp___1 ; [L362] int tmp___2 ; [L365] splverifierCounter = 0 [L367] COND TRUE 1 [L369] COND TRUE splverifierCounter < 4 [L375] tmp = __VERIFIER_nondet_int() [L377] COND TRUE \read(tmp) [L379] CALL waterRise() [L445] COND TRUE waterLevel < 2 [L446] waterLevel = waterLevel + 1 [L379] RET waterRise() [L385] tmp___0 = __VERIFIER_nondet_int() [L387] COND FALSE !(\read(tmp___0)) [L395] tmp___2 = __VERIFIER_nondet_int() [L397] COND FALSE !(\read(tmp___2)) [L403] tmp___1 = __VERIFIER_nondet_int() [L405] COND TRUE \read(tmp___1) [L407] CALL stopSystem() [L334] COND FALSE !(\read(pumpRunning)) [L341] systemActive = 0 [L407] RET stopSystem() [L414] CALL timeShift() [L98] COND FALSE !(\read(pumpRunning)) [L105] COND FALSE !(\read(systemActive)) [L113] CALL __utac_acc__Specification3_spec__1() [L1002] int tmp ; [L1003] int tmp___0 ; [L1004] int tmp___1 ; [L1008] CALL, EXPR isMethaneLevelCritical() [L466] int retValue_acc ; [L469] retValue_acc = methaneLevelCritical [L470] return (retValue_acc); [L1008] RET, EXPR isMethaneLevelCritical() [L1008] tmp = isMethaneLevelCritical() [L1010] COND FALSE !(\read(tmp)) [L1014] CALL, EXPR getWaterLevel() [L498] int retValue_acc ; [L501] retValue_acc = waterLevel [L502] return (retValue_acc); [L1014] RET, EXPR getWaterLevel() [L1014] tmp___0 = getWaterLevel() [L1016] COND TRUE tmp___0 == 2 [L1018] CALL, EXPR isPumpRunning() [L248] int retValue_acc ; [L251] retValue_acc = pumpRunning [L252] return (retValue_acc); [L1018] RET, EXPR isPumpRunning() [L1018] tmp___1 = isPumpRunning() [L1020] COND FALSE !(\read(tmp___1)) [L1024] CALL __automaton_fail() [L996] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 674 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 40.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 16.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1482 SDtfs, 2260 SDslu, 1085 SDs, 0 SdLazy, 3259 SolverSat, 763 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 136 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1131occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 380 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 22.8s InterpolantComputationTime, 1000 NumberOfCodeBlocks, 1000 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 818 ConstructedInterpolants, 0 QuantifiedInterpolants, 313692 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...