/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --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_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:32:09,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:32:09,187 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:32:09,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:32:09,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:32:09,241 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:32:09,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:32:09,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:32:09,251 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:32:09,252 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:32:09,253 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:32:09,255 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:32:09,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:32:09,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:32:09,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:32:09,258 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:32:09,259 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:32:09,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:32:09,262 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:32:09,264 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:32:09,265 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:32:09,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:32:09,268 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:32:09,269 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:32:09,271 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:32:09,271 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:32:09,272 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:32:09,273 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:32:09,273 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:32:09,274 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:32:09,275 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:32:09,275 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:32:09,276 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:32:09,277 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:32:09,278 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:32:09,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:32:09,279 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:32:09,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:32:09,280 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:32:09,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:32:09,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:32:09,283 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:32:09,308 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:32:09,309 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:32:09,310 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:32:09,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:32:09,310 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:32:09,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:32:09,311 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:32:09,311 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:32:09,311 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:32:09,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:32:09,312 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:32:09,312 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:32:09,312 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:32:09,312 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:32:09,313 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:32:09,313 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:32:09,313 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:32:09,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:32:09,313 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:32:09,314 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:32:09,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:32:09,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:32:09,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:32:09,314 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:32:09,315 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:32:09,315 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:32:09,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:32:09,315 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:32:09,316 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:32:09,316 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:32:09,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:32:09,794 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:32:09,798 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:32:09,800 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:32:09,800 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:32:09,801 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c [2020-09-25 07:32:09,876 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c36798692/6dee3dab60ef48b28629d80bd943c3fb/FLAG50c450cc4 [2020-09-25 07:32:10,439 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:32:10,440 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c [2020-09-25 07:32:10,457 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c36798692/6dee3dab60ef48b28629d80bd943c3fb/FLAG50c450cc4 [2020-09-25 07:32:10,727 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c36798692/6dee3dab60ef48b28629d80bd943c3fb [2020-09-25 07:32:10,741 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:32:10,747 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:32:10,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:32:10,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:32:10,753 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:32:10,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:32:10" (1/1) ... [2020-09-25 07:32:10,758 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e5903c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:10, skipping insertion in model container [2020-09-25 07:32:10,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:32:10" (1/1) ... [2020-09-25 07:32:10,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:32:10,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:32:11,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:32:11,230 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:32:11,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:32:11,439 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:32:11,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:11 WrapperNode [2020-09-25 07:32:11,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:32:11,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:32:11,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:32:11,442 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:32:11,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:11" (1/1) ... [2020-09-25 07:32:11,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:11" (1/1) ... [2020-09-25 07:32:11,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:11" (1/1) ... [2020-09-25 07:32:11,478 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:11" (1/1) ... [2020-09-25 07:32:11,507 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:11" (1/1) ... [2020-09-25 07:32:11,518 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:11" (1/1) ... [2020-09-25 07:32:11,523 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:11" (1/1) ... [2020-09-25 07:32:11,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:32:11,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:32:11,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:32:11,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:32:11,533 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:11" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:32:11,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:32:11,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:32:11,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:32:11,603 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:32:11,603 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:32:11,603 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:32:11,603 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:32:11,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:32:11,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:32:11,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:32:11,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:32:11,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:32:11,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:32:11,604 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:32:11,605 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:32:11,605 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:32:11,605 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:32:11,605 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:32:11,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 07:32:11,606 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:32:11,606 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:32:11,608 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:32:11,609 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:32:11,609 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:32:11,609 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:32:11,610 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:32:11,610 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:32:11,610 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 07:32:11,611 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 07:32:11,611 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 07:32:11,612 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:32:11,612 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:32:11,612 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:32:11,612 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:32:11,612 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:32:11,612 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:32:11,613 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:32:11,613 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 07:32:11,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:32:11,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:32:11,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:32:11,613 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:32:11,614 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:32:11,614 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:32:11,614 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:32:11,614 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:32:11,614 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:32:11,614 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:32:11,614 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:32:11,615 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:32:11,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:32:11,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:32:11,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:32:11,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:32:11,616 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:32:11,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:32:11,616 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:32:11,616 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:32:11,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:32:11,617 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:32:11,617 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:32:11,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:32:11,617 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:32:11,617 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:32:11,617 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:32:11,618 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:32:11,618 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:32:11,618 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:32:11,618 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:32:11,619 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:32:11,619 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:32:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:32:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:32:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:32:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:32:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:32:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:32:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 07:32:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:32:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:32:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 07:32:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:32:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:32:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 07:32:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 07:32:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:32:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:32:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 07:32:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:32:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:32:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:32:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:32:12,788 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:32:12,788 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:32:12,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:32:12 BoogieIcfgContainer [2020-09-25 07:32:12,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:32:12,797 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:32:12,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:32:12,801 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:32:12,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:32:10" (1/3) ... [2020-09-25 07:32:12,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b30d90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:32:12, skipping insertion in model container [2020-09-25 07:32:12,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:11" (2/3) ... [2020-09-25 07:32:12,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b30d90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:32:12, skipping insertion in model container [2020-09-25 07:32:12,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:32:12" (3/3) ... [2020-09-25 07:32:12,805 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product20.cil.c [2020-09-25 07:32:12,816 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:32:12,827 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:32:12,849 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:32:12,880 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:32:12,880 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:32:12,880 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:32:12,881 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:32:12,881 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:32:12,881 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:32:12,881 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:32:12,881 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:32:12,906 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states. [2020-09-25 07:32:12,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 07:32:12,926 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:32:12,927 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:32:12,928 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:32:12,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:32:12,935 INFO L82 PathProgramCache]: Analyzing trace with hash 554179223, now seen corresponding path program 1 times [2020-09-25 07:32:12,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:32:12,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1210947345] [2020-09-25 07:32:12,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:32:13,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:13,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:13,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:15,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:18,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:18,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 07:32:18,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:32:18,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 07:32:18,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:18,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:18,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:18,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 07:32:18,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:18,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 07:32:18,673 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:32:18,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:32:18,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:18,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:18,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:18,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:32:18,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:18,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-25 07:32:18,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:18,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:18,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:18,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:18,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:18,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:18,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:32:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:18,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:18,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:18,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:32:18,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:18,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:32:18,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:18,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:18,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:18,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:18,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:18,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:18,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:32:18,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:18,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:18,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:18,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:32:18,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:18,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:32:18,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:18,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:18,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:18,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:18,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:18,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:18,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:32:18,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:18,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:18,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:18,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:18,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:18,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:32:18,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:18,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:18,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:18,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:18,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:18,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:18,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:32:18,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:18,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:18,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:18,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:32:18,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:18,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:32:18,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:18,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:18,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:18,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:18,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:18,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:18,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:32:18,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:18,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:18,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:18,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:18,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:18,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:32:18,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:18,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:18,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:18,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:32:18,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:18,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:18,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:32:18,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:18,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:18,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:18,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:18,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:18,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:32:18,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:18,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:18,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:18,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:32:18,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:18,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:18,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 07:32:18,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:18,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:18,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:18,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:18,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:18,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:32:18,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:18,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:18,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:18,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:32:18,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:18,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:19,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:32:19,045 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1210947345] [2020-09-25 07:32:19,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:32:19,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:32:19,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746892312] [2020-09-25 07:32:19,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:32:19,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:32:19,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:32:19,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:32:19,079 INFO L87 Difference]: Start difference. First operand 302 states. Second operand 3 states. [2020-09-25 07:32:20,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:32:20,284 INFO L93 Difference]: Finished difference Result 458 states and 546 transitions. [2020-09-25 07:32:20,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:32:20,286 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 07:32:20,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:32:20,306 INFO L225 Difference]: With dead ends: 458 [2020-09-25 07:32:20,307 INFO L226 Difference]: Without dead ends: 287 [2020-09-25 07:32:20,312 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:32:20,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-25 07:32:20,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 245. [2020-09-25 07:32:20,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-09-25 07:32:20,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 265 transitions. [2020-09-25 07:32:20,426 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 265 transitions. Word has length 153 [2020-09-25 07:32:20,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:32:20,430 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 265 transitions. [2020-09-25 07:32:20,430 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:32:20,436 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 265 transitions. [2020-09-25 07:32:20,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 07:32:20,446 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:32:20,446 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:32:20,447 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:32:20,447 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:32:20,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:32:20,447 INFO L82 PathProgramCache]: Analyzing trace with hash -809983640, now seen corresponding path program 1 times [2020-09-25 07:32:20,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:32:20,448 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1693926857] [2020-09-25 07:32:20,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:32:20,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:20,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:20,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:22,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:25,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:25,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 07:32:25,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:32:25,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-25 07:32:25,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:25,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:25,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:32:25,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 07:32:25,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:32:25,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:25,848 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:32:25,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:32:25,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:25,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:25,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:25,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:32:25,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:25,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 07:32:25,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:25,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:25,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:25,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:25,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:25,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:26,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:32:26,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:26,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:26,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:26,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:32:26,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:26,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:32:26,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:26,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:26,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:26,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:26,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:26,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:32:26,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:32:26,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:26,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:26,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:26,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:32:26,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:26,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:32:26,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:26,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:26,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:26,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:26,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:26,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:32:26,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:32:26,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:26,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:26,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:26,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:26,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:26,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:32:26,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:26,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:26,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:26,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:26,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:26,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:26,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:32:26,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:26,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:26,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:26,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:32:26,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:26,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:32:26,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:26,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:26,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:26,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:26,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:26,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:26,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 07:32:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:26,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:26,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:26,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:26,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:26,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:32:26,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:26,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:26,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:26,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:32:26,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:26,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:26,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 07:32:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:26,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:26,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:26,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:26,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:26,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:32:26,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:26,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:26,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:26,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:32:26,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:26,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:26,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 07:32:26,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:26,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:26,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:26,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:26,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:26,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:32:26,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:26,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:26,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:26,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:32:26,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:26,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:32:26,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:32:26,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1693926857] [2020-09-25 07:32:26,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:32:26,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:32:26,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473510504] [2020-09-25 07:32:26,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:32:26,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:32:26,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:32:26,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:32:26,088 INFO L87 Difference]: Start difference. First operand 245 states and 265 transitions. Second operand 4 states. [2020-09-25 07:32:26,714 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:32:27,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:32:27,487 INFO L93 Difference]: Finished difference Result 365 states and 409 transitions. [2020-09-25 07:32:27,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:32:27,488 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 07:32:27,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:32:27,494 INFO L225 Difference]: With dead ends: 365 [2020-09-25 07:32:27,494 INFO L226 Difference]: Without dead ends: 270 [2020-09-25 07:32:27,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:32:27,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-09-25 07:32:27,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 235. [2020-09-25 07:32:27,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-09-25 07:32:27,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 252 transitions. [2020-09-25 07:32:27,539 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 252 transitions. Word has length 154 [2020-09-25 07:32:27,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:32:27,540 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 252 transitions. [2020-09-25 07:32:27,540 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:32:27,540 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 252 transitions. [2020-09-25 07:32:27,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 07:32:27,543 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:32:27,543 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] [2020-09-25 07:32:27,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:32:27,544 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:32:27,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:32:27,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1505861819, now seen corresponding path program 1 times [2020-09-25 07:32:27,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:32:27,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1645717695] [2020-09-25 07:32:27,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:32:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:27,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:27,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:30,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:30,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 07:32:30,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:32:30,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2846 [2020-09-25 07:32:30,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:30,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:30,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:32:30,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 07:32:30,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:32:30,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:30,707 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:32:30,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:32:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:30,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:30,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:30,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:32:30,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:30,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 07:32:30,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:30,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:30,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:30,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:30,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:30,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:30,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:32:30,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:30,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:30,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:30,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:32:30,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:30,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:32:30,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:30,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:30,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:30,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:30,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:30,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:30,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:32:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:30,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:30,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:30,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:32:30,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:30,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:32:30,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:30,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:30,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:30,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:30,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:30,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:30,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:32:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:30,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:30,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:30,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:30,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:30,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:32:30,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:30,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:30,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:30,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:30,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:30,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:30,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:32:30,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:30,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:30,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:30,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:32:30,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:30,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:32:30,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:30,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:30,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:30,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:30,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:30,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:30,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 07:32:30,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:30,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:30,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:30,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:32:30,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:30,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:32:30,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:30,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:30,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:32:30,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:30,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:32:30,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:30,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 07:32:30,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:30,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:30,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:30,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:30,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:30,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:32:30,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:30,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:30,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:30,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:32:30,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:30,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:32:30,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 07:32:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:30,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:30,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:30,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:30,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:30,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:32:30,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:30,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:30,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:30,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:32:30,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:30,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:30,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 07:32:30,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:30,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:30,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:30,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:30,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:30,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:32:30,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:30,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:30,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:30,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:32:30,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:30,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:32:30,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:32:30,982 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1645717695] [2020-09-25 07:32:30,982 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:32:30,982 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:32:30,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972771598] [2020-09-25 07:32:30,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:32:30,983 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:32:30,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:32:30,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:32:30,984 INFO L87 Difference]: Start difference. First operand 235 states and 252 transitions. Second operand 5 states. [2020-09-25 07:32:31,464 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:32:32,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:32:32,971 INFO L93 Difference]: Finished difference Result 551 states and 637 transitions. [2020-09-25 07:32:32,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:32:32,972 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-25 07:32:32,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:32:32,977 INFO L225 Difference]: With dead ends: 551 [2020-09-25 07:32:32,977 INFO L226 Difference]: Without dead ends: 426 [2020-09-25 07:32:32,979 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:32:32,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2020-09-25 07:32:33,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 350. [2020-09-25 07:32:33,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2020-09-25 07:32:33,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 385 transitions. [2020-09-25 07:32:33,047 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 385 transitions. Word has length 167 [2020-09-25 07:32:33,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:32:33,049 INFO L479 AbstractCegarLoop]: Abstraction has 350 states and 385 transitions. [2020-09-25 07:32:33,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:32:33,049 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 385 transitions. [2020-09-25 07:32:33,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 07:32:33,052 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:32:33,052 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:32:33,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:32:33,052 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:32:33,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:32:33,053 INFO L82 PathProgramCache]: Analyzing trace with hash 955206154, now seen corresponding path program 1 times [2020-09-25 07:32:33,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:32:33,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [873471885] [2020-09-25 07:32:33,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:32:33,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:33,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:34,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:34,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 07:32:34,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:34,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1656 [2020-09-25 07:32:34,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:34,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:34,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 07:32:34,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 07:32:34,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 07:32:34,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:32:35,234 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:32:35,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:32:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:35,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:35,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:35,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:32:35,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:35,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 320 [2020-09-25 07:32:35,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:35,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:35,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:32:35,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:35,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 07:32:35,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:35,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:32:35,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:35,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:35,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:35,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:32:35,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:35,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:32:35,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:35,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:35,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:32:35,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:35,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:32:35,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:35,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:32:35,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:35,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:35,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:35,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:32:35,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:35,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:32:35,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:35,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:35,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:32:35,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:35,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:32:35,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:32:35,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:32:35,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:35,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:35,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:35,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:35,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:35,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:32:35,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:35,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:35,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:32:35,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:35,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:32:35,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:32:35,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:32:35,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:35,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:35,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:35,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:32:35,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:35,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:32:35,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:35,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:35,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:32:35,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:35,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:32:35,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:35,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 07:32:35,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:35,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:35,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:35,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:32:35,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:35,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:32:35,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:35,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:35,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:32:35,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:35,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:32:35,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:35,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 07:32:35,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:35,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:35,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:35,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:35,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:35,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:32:35,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:35,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:35,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:32:35,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:35,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:32:35,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:32:35,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 07:32:35,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:35,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:35,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:35,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:35,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:35,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:32:35,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:35,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:35,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:32:35,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:35,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:32:35,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:32:35,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 07:32:35,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:35,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:35,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:35,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:35,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:35,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:32:35,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:35,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:35,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:35,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:32:35,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:35,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:32:35,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:32:35,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [873471885] [2020-09-25 07:32:35,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:32:35,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 07:32:35,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036212945] [2020-09-25 07:32:35,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:32:35,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:32:35,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:32:35,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:32:35,794 INFO L87 Difference]: Start difference. First operand 350 states and 385 transitions. Second operand 10 states. [2020-09-25 07:32:36,282 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:32:38,114 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:32:38,438 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:32:38,781 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:32:39,139 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:32:39,444 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:32:39,757 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:32:40,060 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:32:40,473 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:32:41,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:32:41,225 INFO L93 Difference]: Finished difference Result 928 states and 1119 transitions. [2020-09-25 07:32:41,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 07:32:41,226 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-09-25 07:32:41,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:32:41,232 INFO L225 Difference]: With dead ends: 928 [2020-09-25 07:32:41,233 INFO L226 Difference]: Without dead ends: 688 [2020-09-25 07:32:41,236 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-25 07:32:41,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2020-09-25 07:32:41,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 583. [2020-09-25 07:32:41,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2020-09-25 07:32:41,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 661 transitions. [2020-09-25 07:32:41,333 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 661 transitions. Word has length 172 [2020-09-25 07:32:41,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:32:41,334 INFO L479 AbstractCegarLoop]: Abstraction has 583 states and 661 transitions. [2020-09-25 07:32:41,334 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:32:41,334 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 661 transitions. [2020-09-25 07:32:41,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 07:32:41,338 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:32:41,338 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:32:41,338 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:32:41,338 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:32:41,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:32:41,339 INFO L82 PathProgramCache]: Analyzing trace with hash 430422311, now seen corresponding path program 1 times [2020-09-25 07:32:41,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:32:41,339 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1110922632] [2020-09-25 07:32:41,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:32:41,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 07:32:41,404 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 07:32:41,404 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 07:32:41,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:32:41,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 07:32:41 BoogieIcfgContainer [2020-09-25 07:32:41,436 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 07:32:41,438 INFO L168 Benchmark]: Toolchain (without parser) took 30695.63 ms. Allocated memory was 139.5 MB in the beginning and 582.0 MB in the end (delta: 442.5 MB). Free memory was 102.0 MB in the beginning and 193.3 MB in the end (delta: -91.3 MB). Peak memory consumption was 351.2 MB. Max. memory is 7.1 GB. [2020-09-25 07:32:41,439 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 07:32:41,440 INFO L168 Benchmark]: CACSL2BoogieTranslator took 692.92 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 101.3 MB in the beginning and 172.8 MB in the end (delta: -71.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 7.1 GB. [2020-09-25 07:32:41,441 INFO L168 Benchmark]: Boogie Preprocessor took 89.28 ms. Allocated memory is still 202.9 MB. Free memory was 172.8 MB in the beginning and 168.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-25 07:32:41,442 INFO L168 Benchmark]: RCFGBuilder took 1264.23 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 168.7 MB in the beginning and 180.5 MB in the end (delta: -11.9 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. [2020-09-25 07:32:41,443 INFO L168 Benchmark]: TraceAbstraction took 28639.84 ms. Allocated memory was 236.5 MB in the beginning and 582.0 MB in the end (delta: 345.5 MB). Free memory was 179.1 MB in the beginning and 193.3 MB in the end (delta: -14.3 MB). Peak memory consumption was 331.2 MB. Max. memory is 7.1 GB. [2020-09-25 07:32:41,447 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 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 692.92 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 101.3 MB in the beginning and 172.8 MB in the end (delta: -71.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.28 ms. Allocated memory is still 202.9 MB. Free memory was 172.8 MB in the beginning and 168.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1264.23 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 168.7 MB in the beginning and 180.5 MB in the end (delta: -11.9 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28639.84 ms. Allocated memory was 236.5 MB in the beginning and 582.0 MB in the end (delta: 345.5 MB). Free memory was 179.1 MB in the beginning and 193.3 MB in the end (delta: -14.3 MB). Peak memory consumption was 331.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 927]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L444] int cleanupTimeShifts = 4; [L590] int pumpRunning = 0; [L591] int systemActive = 1; [L834] int waterLevel = 1; [L835] int methaneLevelCritical = 0; [L522] int retValue_acc ; [L523] int tmp ; [L527] FCALL select_helpers() [L528] FCALL select_features() [L529] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L529] RET, EXPR valid_product() [L529] tmp = valid_product() [L531] COND TRUE \read(tmp) [L533] FCALL setup() [L534] CALL runTest() [L516] CALL test() [L766] int splverifierCounter ; [L767] int tmp ; [L768] int tmp___0 ; [L769] int tmp___1 ; [L770] int tmp___2 ; [L773] splverifierCounter = 0 [L775] COND TRUE 1 [L777] COND TRUE splverifierCounter < 4 [L783] tmp = __VERIFIER_nondet_int() [L785] COND TRUE \read(tmp) [L787] CALL waterRise() [L852] COND TRUE waterLevel < 2 [L853] waterLevel = waterLevel + 1 [L787] RET waterRise() [L793] tmp___0 = __VERIFIER_nondet_int() [L795] COND FALSE !(\read(tmp___0)) [L803] tmp___2 = __VERIFIER_nondet_int() [L805] COND FALSE !(\read(tmp___2)) [L811] tmp___1 = __VERIFIER_nondet_int() [L813] COND TRUE \read(tmp___1) [L815] CALL stopSystem() [L745] COND FALSE !(\read(pumpRunning)) [L752] systemActive = 0 [L815] RET stopSystem() [L822] CALL timeShift() [L597] COND FALSE !(\read(pumpRunning)) [L604] COND FALSE !(\read(systemActive)) [L612] CALL __utac_acc__Specification3_spec__1() [L550] int tmp ; [L551] int tmp___0 ; [L552] int tmp___1 ; [L556] CALL, EXPR isMethaneLevelCritical() [L873] int retValue_acc ; [L876] retValue_acc = methaneLevelCritical [L877] return (retValue_acc); [L556] RET, EXPR isMethaneLevelCritical() [L556] tmp = isMethaneLevelCritical() [L558] COND FALSE !(\read(tmp)) [L562] CALL, EXPR getWaterLevel() [L905] int retValue_acc ; [L908] retValue_acc = waterLevel [L909] return (retValue_acc); [L562] RET, EXPR getWaterLevel() [L562] tmp___0 = getWaterLevel() [L564] COND TRUE tmp___0 == 2 [L566] CALL, EXPR isPumpRunning() [L678] int retValue_acc ; [L681] retValue_acc = pumpRunning [L682] return (retValue_acc); [L566] RET, EXPR isPumpRunning() [L566] tmp___1 = isPumpRunning() [L568] COND FALSE !(\read(tmp___1)) [L572] CALL __automaton_fail() [L927] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 619 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 28.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 10.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 954 SDtfs, 1432 SDslu, 867 SDs, 0 SdLazy, 1988 SolverSat, 506 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=583occurred 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: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 258 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 17.2s InterpolantComputationTime, 823 NumberOfCodeBlocks, 823 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 642 ConstructedInterpolants, 0 QuantifiedInterpolants, 254693 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...