/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=HIGHLEXORDER --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_product02.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:27:32,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:27:32,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:27:32,619 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:27:32,619 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:27:32,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:27:32,622 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:27:32,624 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:27:32,626 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:27:32,627 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:27:32,628 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:27:32,629 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:27:32,630 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:27:32,631 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:27:32,632 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:27:32,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:27:32,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:27:32,635 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:27:32,637 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:27:32,639 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:27:32,641 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:27:32,642 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:27:32,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:27:32,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:27:32,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:27:32,647 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:27:32,648 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:27:32,649 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:27:32,649 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:27:32,651 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:27:32,651 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:27:32,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:27:32,655 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:27:32,656 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:27:32,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:27:32,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:27:32,658 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:27:32,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:27:32,659 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:27:32,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:27:32,662 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:27:32,663 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 22:27:32,726 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:27:32,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:27:32,731 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:27:32,731 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:27:32,732 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:27:32,732 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:27:32,732 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:27:32,732 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:27:32,733 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:27:32,735 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:27:32,735 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:27:32,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:27:32,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:27:32,736 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:27:32,736 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:27:32,736 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:27:32,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:27:32,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:27:32,737 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:27:32,737 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:27:32,738 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:27:32,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:27:32,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:27:32,738 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:27:32,738 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:27:32,740 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:27:32,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:27:32,740 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:27:32,741 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:27:32,741 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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:27:33,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:27:33,257 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:27:33,262 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:27:33,263 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:27:33,264 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:27:33,265 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c [2020-09-24 22:27:33,342 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/237e8fd69/7570af028e064ae7b2292d197959273a/FLAGfb7984dc6 [2020-09-24 22:27:34,053 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:27:34,055 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c [2020-09-24 22:27:34,078 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/237e8fd69/7570af028e064ae7b2292d197959273a/FLAGfb7984dc6 [2020-09-24 22:27:34,288 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/237e8fd69/7570af028e064ae7b2292d197959273a [2020-09-24 22:27:34,302 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:27:34,308 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:27:34,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:27:34,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:27:34,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:27:34,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:27:34" (1/1) ... [2020-09-24 22:27:34,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@422405df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:27:34, skipping insertion in model container [2020-09-24 22:27:34,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:27:34" (1/1) ... [2020-09-24 22:27:34,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:27:34,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:27:34,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:27:34,899 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:27:35,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:27:35,083 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:27:35,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:27:35 WrapperNode [2020-09-24 22:27:35,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:27:35,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:27:35,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:27:35,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:27:35,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:27:35" (1/1) ... [2020-09-24 22:27:35,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:27:35" (1/1) ... [2020-09-24 22:27:35,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:27:35" (1/1) ... [2020-09-24 22:27:35,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:27:35" (1/1) ... [2020-09-24 22:27:35,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:27:35" (1/1) ... [2020-09-24 22:27:35,172 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:27:35" (1/1) ... [2020-09-24 22:27:35,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:27:35" (1/1) ... [2020-09-24 22:27:35,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:27:35,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:27:35,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:27:35,186 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:27:35,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:27:35" (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 22:27:35,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:27:35,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:27:35,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 22:27:35,293 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 22:27:35,293 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 22:27:35,293 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 22:27:35,293 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 22:27:35,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 22:27:35,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 22:27:35,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 22:27:35,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 22:27:35,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 22:27:35,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 22:27:35,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 22:27:35,295 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 22:27:35,296 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 22:27:35,297 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 22:27:35,297 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 22:27:35,297 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 22:27:35,297 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 22:27:35,298 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 22:27:35,298 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 22:27:35,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 22:27:35,300 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 22:27:35,302 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 22:27:35,302 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 22:27:35,302 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 22:27:35,302 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 22:27:35,302 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:27:35,303 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 22:27:35,303 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 22:27:35,303 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 22:27:35,304 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 22:27:35,304 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 22:27:35,304 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 22:27:35,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:27:35,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:27:35,305 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 22:27:35,305 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 22:27:35,305 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 22:27:35,305 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 22:27:35,305 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 22:27:35,305 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 22:27:35,306 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 22:27:35,306 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:27:35,306 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:27:35,306 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 22:27:35,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:27:35,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:27:35,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:27:35,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:27:35,307 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 22:27:35,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:27:35,307 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 22:27:35,307 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 22:27:35,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:27:35,307 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 22:27:35,308 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 22:27:35,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:27:35,308 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 22:27:35,308 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 22:27:35,308 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 22:27:35,308 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 22:27:35,308 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 22:27:35,308 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 22:27:35,309 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 22:27:35,309 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 22:27:35,309 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 22:27:35,309 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 22:27:35,309 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 22:27:35,310 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 22:27:35,310 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 22:27:35,311 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 22:27:35,312 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 22:27:35,312 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 22:27:35,312 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 22:27:35,312 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 22:27:35,312 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 22:27:35,312 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 22:27:35,312 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 22:27:35,312 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:27:35,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:27:35,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:27:35,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:27:36,563 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:27:36,566 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 22:27:36,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:27:36 BoogieIcfgContainer [2020-09-24 22:27:36,578 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:27:36,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:27:36,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:27:36,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:27:36,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:27:34" (1/3) ... [2020-09-24 22:27:36,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc10d47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:27:36, skipping insertion in model container [2020-09-24 22:27:36,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:27:35" (2/3) ... [2020-09-24 22:27:36,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc10d47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:27:36, skipping insertion in model container [2020-09-24 22:27:36,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:27:36" (3/3) ... [2020-09-24 22:27:36,590 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product02.cil.c [2020-09-24 22:27:36,605 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:27:36,620 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:27:36,646 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:27:36,694 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:27:36,694 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:27:36,695 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:27:36,695 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:27:36,695 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:27:36,695 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:27:36,696 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:27:36,696 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:27:36,740 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states. [2020-09-24 22:27:36,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 22:27:36,767 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:27:36,769 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:27:36,769 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:27:36,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:27:36,780 INFO L82 PathProgramCache]: Analyzing trace with hash -96465303, now seen corresponding path program 1 times [2020-09-24 22:27:36,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:27:36,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1430486357] [2020-09-24 22:27:36,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:27:37,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:37,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:37,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:39,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:42,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:42,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 22:27:42,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:27:42,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-09-24 22:27:42,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:42,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:42,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 22:27:42,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:42,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-09-24 22:27:42,875 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:27:42,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:27:42,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:42,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:43,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:43,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:27:43,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:43,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-09-24 22:27:43,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:43,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:43,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:43,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:43,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-24 22:27:43,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:27:43,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:43,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:43,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:43,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:27:43,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:43,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:27:43,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:43,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:43,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:43,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:43,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:43,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:27:43,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:43,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:43,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:43,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:27:43,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:43,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:27:43,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:43,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:43,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:43,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:43,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:43,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:27:43,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:43,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:43,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:43,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:27:43,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:43,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:27:43,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:43,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:43,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:43,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:43,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:43,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:27:43,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:43,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:43,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:43,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:27:43,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:43,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:43,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:43,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:43,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:43,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:43,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:43,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 22:27:43,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:43,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:43,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:43,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:27:43,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:43,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:43,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:43,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:43,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:27:43,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:43,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:43,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 22:27:43,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:43,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:43,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:43,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:27:43,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:43,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:27:43,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:43,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:43,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:27:43,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:43,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:43,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 22:27:43,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:43,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:43,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:43,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:27:43,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:43,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:27:43,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:43,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:43,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:27:43,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:43,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:43,287 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 22:27:43,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1430486357] [2020-09-24 22:27:43,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:27:43,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:27:43,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39594290] [2020-09-24 22:27:43,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:27:43,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:27:43,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:27:43,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:27:43,322 INFO L87 Difference]: Start difference. First operand 262 states. Second operand 3 states. [2020-09-24 22:27:44,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:27:44,487 INFO L93 Difference]: Finished difference Result 374 states and 448 transitions. [2020-09-24 22:27:44,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:27:44,490 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 22:27:44,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:27:44,511 INFO L225 Difference]: With dead ends: 374 [2020-09-24 22:27:44,511 INFO L226 Difference]: Without dead ends: 243 [2020-09-24 22:27:44,517 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:27:44,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-09-24 22:27:44,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 205. [2020-09-24 22:27:44,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-09-24 22:27:44,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 219 transitions. [2020-09-24 22:27:44,624 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 219 transitions. Word has length 153 [2020-09-24 22:27:44,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:27:44,625 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 219 transitions. [2020-09-24 22:27:44,625 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:27:44,626 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 219 transitions. [2020-09-24 22:27:44,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 22:27:44,632 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:27:44,632 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 22:27:44,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:27:44,633 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:27:44,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:27:44,634 INFO L82 PathProgramCache]: Analyzing trace with hash -116924770, now seen corresponding path program 1 times [2020-09-24 22:27:44,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:27:44,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [699561198] [2020-09-24 22:27:44,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:27:44,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:44,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:44,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:46,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:49,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:49,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 22:27:49,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:27:49,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-09-24 22:27:49,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:49,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:27:49,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 22:27:49,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:27:49,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:50,047 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:27:50,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:27:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:50,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:50,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:50,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:27:50,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:50,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-24 22:27:50,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:50,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:50,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:50,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:50,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:50,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:27:50,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:50,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:50,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:50,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:27:50,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:50,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:50,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:50,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:50,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:50,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:50,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:50,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:27:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:50,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:50,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:50,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:27:50,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:50,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:27:50,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:50,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:50,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:50,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:50,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:50,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:27:50,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:50,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:50,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:50,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:27:50,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:50,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:50,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:50,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:50,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:50,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:50,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:50,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:27:50,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:50,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:50,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:50,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:27:50,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:50,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:50,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:50,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:50,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:50,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:50,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:50,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 22:27:50,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:50,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:50,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:50,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:27:50,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:50,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:50,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:50,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:50,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:27:50,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:50,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:50,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 22:27:50,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:50,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:50,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:50,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:27:50,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:50,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:50,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:50,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:50,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:27:50,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:50,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:50,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 22:27:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:50,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:50,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:50,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:27:50,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:50,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:50,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:50,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:50,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:27:50,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:50,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:50,288 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 22:27:50,289 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [699561198] [2020-09-24 22:27:50,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:27:50,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 22:27:50,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148375004] [2020-09-24 22:27:50,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 22:27:50,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:27:50,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 22:27:50,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 22:27:50,293 INFO L87 Difference]: Start difference. First operand 205 states and 219 transitions. Second operand 4 states. [2020-09-24 22:27:50,999 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:27:51,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:27:51,637 INFO L93 Difference]: Finished difference Result 287 states and 319 transitions. [2020-09-24 22:27:51,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 22:27:51,638 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 22:27:51,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:27:51,641 INFO L225 Difference]: With dead ends: 287 [2020-09-24 22:27:51,642 INFO L226 Difference]: Without dead ends: 226 [2020-09-24 22:27:51,643 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 22:27:51,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-09-24 22:27:51,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 195. [2020-09-24 22:27:51,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-09-24 22:27:51,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 206 transitions. [2020-09-24 22:27:51,678 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 206 transitions. Word has length 154 [2020-09-24 22:27:51,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:27:51,679 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 206 transitions. [2020-09-24 22:27:51,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 22:27:51,679 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 206 transitions. [2020-09-24 22:27:51,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 22:27:51,682 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:27:51,682 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 22:27:51,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:27:51,683 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:27:51,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:27:51,683 INFO L82 PathProgramCache]: Analyzing trace with hash -529547900, now seen corresponding path program 1 times [2020-09-24 22:27:51,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:27:51,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [11067066] [2020-09-24 22:27:51,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:27:51,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:51,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:51,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:54,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:54,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 22:27:54,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:27:54,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2936 [2020-09-24 22:27:54,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:54,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:27:54,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 22:27:54,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:27:54,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:55,003 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:27:55,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:27:55,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:55,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:55,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:55,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:27:55,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:55,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 22:27:55,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:55,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:55,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:55,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:55,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:55,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:27:55,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:55,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:55,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:55,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:27:55,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:55,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:55,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:55,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:55,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:55,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:55,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:55,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:27:55,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:55,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:55,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:55,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:27:55,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:55,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:27:55,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:55,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:55,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:55,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:55,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:55,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:27:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:55,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:55,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:55,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:27:55,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:55,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:27:55,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:55,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:55,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:55,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:55,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:55,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:27:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:55,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:55,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:55,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:27:55,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:55,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:55,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:55,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:55,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:55,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:55,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:55,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 22:27:55,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:55,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:55,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:55,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:27:55,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:55,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:27:55,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:55,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:27:55,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:55,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 22:27:55,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:55,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 22:27:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:55,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:55,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:55,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:27:55,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:55,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 22:27:55,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:55,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:55,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:27:55,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:55,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:27:55,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 22:27:55,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:55,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:55,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:55,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:27:55,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:55,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:27:55,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:55,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:55,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:27:55,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:55,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:55,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 22:27:55,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:55,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:55,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:55,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:27:55,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:55,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:55,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:55,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:55,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:27:55,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:55,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:55,290 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 22:27:55,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [11067066] [2020-09-24 22:27:55,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:27:55,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 22:27:55,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431285959] [2020-09-24 22:27:55,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 22:27:55,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:27:55,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 22:27:55,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:27:55,295 INFO L87 Difference]: Start difference. First operand 195 states and 206 transitions. Second operand 5 states. [2020-09-24 22:27:55,835 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:27:56,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:27:56,588 INFO L93 Difference]: Finished difference Result 333 states and 381 transitions. [2020-09-24 22:27:56,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 22:27:56,589 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-24 22:27:56,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:27:56,595 INFO L225 Difference]: With dead ends: 333 [2020-09-24 22:27:56,596 INFO L226 Difference]: Without dead ends: 248 [2020-09-24 22:27:56,597 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 22:27:56,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-09-24 22:27:56,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 195. [2020-09-24 22:27:56,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-09-24 22:27:56,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 205 transitions. [2020-09-24 22:27:56,677 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 205 transitions. Word has length 167 [2020-09-24 22:27:56,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:27:56,678 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 205 transitions. [2020-09-24 22:27:56,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 22:27:56,678 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 205 transitions. [2020-09-24 22:27:56,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-24 22:27:56,680 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:27:56,681 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] [2020-09-24 22:27:56,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:27:56,681 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:27:56,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:27:56,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1664545682, now seen corresponding path program 1 times [2020-09-24 22:27:56,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:27:56,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1202962873] [2020-09-24 22:27:56,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:27:56,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:56,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:58,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:58,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 22:27:58,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:58,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1663 [2020-09-24 22:27:58,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:58,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 22:27:58,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 22:27:58,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 22:27:58,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:58,802 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:27:58,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:27:58,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:58,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:59,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:59,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:27:59,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:59,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-09-24 22:27:59,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:59,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:27:59,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:59,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 22:27:59,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:59,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:27:59,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:59,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:59,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:59,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:27:59,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:59,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:27:59,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:59,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:27:59,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:59,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:27:59,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:59,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:27:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:59,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:59,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:59,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:27:59,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:59,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:27:59,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:59,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:27:59,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:59,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:27:59,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:59,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:27:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:59,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:59,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:59,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:27:59,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:59,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:27:59,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:59,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:27:59,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:59,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:27:59,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:59,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:27:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:59,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:59,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:59,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:27:59,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:59,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:27:59,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:59,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:27:59,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:59,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:27:59,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:59,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 22:27:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:59,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:59,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:59,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:27:59,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:59,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:27:59,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:59,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:27:59,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:59,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 22:27:59,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:59,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 22:27:59,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:59,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:59,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:59,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:27:59,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:59,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:59,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:59,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:27:59,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:59,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:27:59,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:59,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 22:27:59,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:59,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:59,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:59,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:27:59,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:59,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:27:59,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:59,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:27:59,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:59,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:27:59,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:59,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 22:27:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:59,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:59,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:59,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:27:59,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:59,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:27:59,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:59,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:27:59,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:27:59,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:27:59,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:59,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-24 22:27:59,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:59,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:59,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:27:59,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:27:59,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:27:59,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:27:59,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:27:59,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:27:59,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:27:59,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:27:59,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:27:59,321 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 22:27:59,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1202962873] [2020-09-24 22:27:59,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:27:59,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 22:27:59,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733758647] [2020-09-24 22:27:59,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 22:27:59,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:27:59,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 22:27:59,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:27:59,324 INFO L87 Difference]: Start difference. First operand 195 states and 205 transitions. Second operand 10 states. [2020-09-24 22:27:59,994 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:28:01,573 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:28:01,868 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:28:02,216 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:28:02,544 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:28:02,808 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 22:28:03,129 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:28:03,429 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:28:03,820 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:28:04,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:28:04,343 INFO L93 Difference]: Finished difference Result 433 states and 511 transitions. [2020-09-24 22:28:04,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 22:28:04,344 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 170 [2020-09-24 22:28:04,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:28:04,349 INFO L225 Difference]: With dead ends: 433 [2020-09-24 22:28:04,349 INFO L226 Difference]: Without dead ends: 348 [2020-09-24 22:28:04,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-24 22:28:04,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-09-24 22:28:04,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 273. [2020-09-24 22:28:04,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2020-09-24 22:28:04,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 296 transitions. [2020-09-24 22:28:04,395 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 296 transitions. Word has length 170 [2020-09-24 22:28:04,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:28:04,395 INFO L479 AbstractCegarLoop]: Abstraction has 273 states and 296 transitions. [2020-09-24 22:28:04,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 22:28:04,396 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 296 transitions. [2020-09-24 22:28:04,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-24 22:28:04,399 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:28:04,399 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] [2020-09-24 22:28:04,399 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:28:04,399 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:28:04,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:28:04,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1378336310, now seen corresponding path program 1 times [2020-09-24 22:28:04,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:28:04,400 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1501555292] [2020-09-24 22:28:04,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:28:04,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 22:28:04,463 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 22:28:04,463 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 22:28:04,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 22:28:04,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 10:28:04 BoogieIcfgContainer [2020-09-24 22:28:04,495 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 22:28:04,497 INFO L168 Benchmark]: Toolchain (without parser) took 30193.38 ms. Allocated memory was 141.6 MB in the beginning and 533.7 MB in the end (delta: 392.2 MB). Free memory was 103.9 MB in the beginning and 244.4 MB in the end (delta: -140.6 MB). Peak memory consumption was 251.6 MB. Max. memory is 7.1 GB. [2020-09-24 22:28:04,498 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 22:28:04,499 INFO L168 Benchmark]: CACSL2BoogieTranslator took 772.68 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 103.2 MB in the beginning and 172.5 MB in the end (delta: -69.3 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-09-24 22:28:04,500 INFO L168 Benchmark]: Boogie Preprocessor took 100.27 ms. Allocated memory is still 204.5 MB. Free memory was 172.5 MB in the beginning and 168.7 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-09-24 22:28:04,501 INFO L168 Benchmark]: RCFGBuilder took 1392.99 ms. Allocated memory was 204.5 MB in the beginning and 233.8 MB in the end (delta: 29.4 MB). Free memory was 168.7 MB in the beginning and 176.3 MB in the end (delta: -7.6 MB). Peak memory consumption was 79.8 MB. Max. memory is 7.1 GB. [2020-09-24 22:28:04,501 INFO L168 Benchmark]: TraceAbstraction took 27914.17 ms. Allocated memory was 233.8 MB in the beginning and 533.7 MB in the end (delta: 299.9 MB). Free memory was 174.9 MB in the beginning and 244.4 MB in the end (delta: -69.5 MB). Peak memory consumption was 230.4 MB. Max. memory is 7.1 GB. [2020-09-24 22:28:04,505 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 772.68 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 103.2 MB in the beginning and 172.5 MB in the end (delta: -69.3 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.27 ms. Allocated memory is still 204.5 MB. Free memory was 172.5 MB in the beginning and 168.7 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1392.99 ms. Allocated memory was 204.5 MB in the beginning and 233.8 MB in the end (delta: 29.4 MB). Free memory was 168.7 MB in the beginning and 176.3 MB in the end (delta: -7.6 MB). Peak memory consumption was 79.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 27914.17 ms. Allocated memory was 233.8 MB in the beginning and 533.7 MB in the end (delta: 299.9 MB). Free memory was 174.9 MB in the beginning and 244.4 MB in the end (delta: -69.5 MB). Peak memory consumption was 230.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 82]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L256] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L462] int pumpRunning = 0; [L463] int systemActive = 1; [L683] int cleanupTimeShifts = 4; [L779] int waterLevel = 1; [L780] int methaneLevelCritical = 0; [L756] int retValue_acc ; [L757] int tmp ; [L761] FCALL select_helpers() [L762] FCALL select_features() [L763] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L763] RET, EXPR valid_product() [L763] tmp = valid_product() [L765] COND TRUE \read(tmp) [L767] FCALL setup() [L768] CALL runTest() [L750] CALL test() [L617] int splverifierCounter ; [L618] int tmp ; [L619] int tmp___0 ; [L620] int tmp___1 ; [L621] int tmp___2 ; [L624] splverifierCounter = 0 [L626] COND TRUE 1 [L628] COND TRUE splverifierCounter < 4 [L634] tmp = __VERIFIER_nondet_int() [L636] COND TRUE \read(tmp) [L638] CALL waterRise() [L797] COND TRUE waterLevel < 2 [L798] waterLevel = waterLevel + 1 [L638] RET waterRise() [L644] tmp___0 = __VERIFIER_nondet_int() [L646] COND FALSE !(\read(tmp___0)) [L654] tmp___2 = __VERIFIER_nondet_int() [L656] COND TRUE \read(tmp___2) [L658] CALL startSystem() [L573] systemActive = 1 [L658] RET startSystem() [L671] CALL timeShift() [L470] COND FALSE !(\read(pumpRunning)) [L477] COND TRUE \read(systemActive) [L479] FCALL processEnvironment() [L485] CALL __utac_acc__Specification3_spec__1() [L580] int tmp ; [L581] int tmp___0 ; [L582] int tmp___1 ; [L586] CALL, EXPR isMethaneLevelCritical() [L818] int retValue_acc ; [L821] retValue_acc = methaneLevelCritical [L822] return (retValue_acc); [L586] RET, EXPR isMethaneLevelCritical() [L586] tmp = isMethaneLevelCritical() [L588] COND FALSE !(\read(tmp)) [L592] CALL, EXPR getWaterLevel() [L850] int retValue_acc ; [L853] retValue_acc = waterLevel [L854] return (retValue_acc); [L592] RET, EXPR getWaterLevel() [L592] tmp___0 = getWaterLevel() [L594] COND TRUE tmp___0 == 2 [L596] CALL, EXPR isPumpRunning() [L525] int retValue_acc ; [L528] retValue_acc = pumpRunning [L529] return (retValue_acc); [L596] RET, EXPR isPumpRunning() [L596] tmp___1 = isPumpRunning() [L598] COND FALSE !(\read(tmp___1)) [L602] CALL __automaton_fail() [L82] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 582 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 27.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 760 SDtfs, 974 SDslu, 743 SDs, 0 SdLazy, 1458 SolverSat, 310 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=273occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 197 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 17.7s InterpolantComputationTime, 819 NumberOfCodeBlocks, 819 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 640 ConstructedInterpolants, 0 QuantifiedInterpolants, 251084 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...