/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:57:33,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:57:33,011 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:57:33,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:57:33,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:57:33,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:57:33,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:57:33,076 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:57:33,079 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:57:33,082 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:57:33,083 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:57:33,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:57:33,085 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:57:33,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:57:33,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:57:33,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:57:33,095 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:57:33,096 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:57:33,098 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:57:33,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:57:33,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:57:33,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:57:33,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:57:33,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:57:33,116 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:57:33,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:57:33,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:57:33,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:57:33,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:57:33,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:57:33,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:57:33,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:57:33,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:57:33,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:57:33,129 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:57:33,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:57:33,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:57:33,130 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:57:33,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:57:33,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:57:33,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:57:33,134 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 10:57:33,184 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:57:33,184 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:57:33,186 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:57:33,187 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:57:33,187 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:57:33,187 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:57:33,188 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:57:33,188 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:57:33,188 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:57:33,188 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:57:33,189 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:57:33,190 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:57:33,190 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:57:33,190 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:57:33,191 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:57:33,191 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:57:33,191 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:57:33,191 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:57:33,191 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:57:33,192 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:57:33,192 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:57:33,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:57:33,192 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:57:33,193 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:57:33,193 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:57:33,193 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:57:33,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:57:33,193 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:57:33,194 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:57:33,194 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 10:57:33,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:57:33,659 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:57:33,664 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:57:33,666 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:57:33,666 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:57:33,667 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product55.cil.c [2020-09-25 10:57:33,763 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2927b91f1/1d037640be904340a2378ee410ec29f5/FLAGe98575a02 [2020-09-25 10:57:34,343 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:57:34,344 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product55.cil.c [2020-09-25 10:57:34,360 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2927b91f1/1d037640be904340a2378ee410ec29f5/FLAGe98575a02 [2020-09-25 10:57:34,616 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2927b91f1/1d037640be904340a2378ee410ec29f5 [2020-09-25 10:57:34,629 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:57:34,634 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:57:34,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:57:34,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:57:34,640 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:57:34,641 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:57:34" (1/1) ... [2020-09-25 10:57:34,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be095dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:34, skipping insertion in model container [2020-09-25 10:57:34,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:57:34" (1/1) ... [2020-09-25 10:57:34,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:57:34,715 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:57:35,084 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:57:35,207 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:57:35,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:57:35,362 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:57:35,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:35 WrapperNode [2020-09-25 10:57:35,363 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:57:35,364 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:57:35,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:57:35,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:57:35,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:35" (1/1) ... [2020-09-25 10:57:35,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:35" (1/1) ... [2020-09-25 10:57:35,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:35" (1/1) ... [2020-09-25 10:57:35,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:35" (1/1) ... [2020-09-25 10:57:35,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:35" (1/1) ... [2020-09-25 10:57:35,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:35" (1/1) ... [2020-09-25 10:57:35,468 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:35" (1/1) ... [2020-09-25 10:57:35,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:57:35,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:57:35,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:57:35,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:57:35,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:35" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:57:35,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:57:35,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:57:35,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 10:57:35,574 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 10:57:35,574 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 10:57:35,574 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 10:57:35,574 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 10:57:35,576 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 10:57:35,576 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 10:57:35,576 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 10:57:35,576 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 10:57:35,577 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 10:57:35,577 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 10:57:35,577 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 10:57:35,578 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 10:57:35,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 10:57:35,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 10:57:35,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 10:57:35,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 10:57:35,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 10:57:35,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 10:57:35,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 10:57:35,581 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 10:57:35,581 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 10:57:35,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 10:57:35,582 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 10:57:35,582 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:57:35,583 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 10:57:35,583 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 10:57:35,583 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 10:57:35,583 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 10:57:35,583 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 10:57:35,584 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 10:57:35,584 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 10:57:35,584 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 10:57:35,584 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 10:57:35,584 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 10:57:35,584 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 10:57:35,585 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 10:57:35,587 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 10:57:35,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 10:57:35,587 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 10:57:35,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:57:35,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:57:35,587 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 10:57:35,589 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 10:57:35,589 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 10:57:35,590 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 10:57:35,590 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 10:57:35,590 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 10:57:35,591 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 10:57:35,591 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 10:57:35,591 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 10:57:35,591 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 10:57:35,592 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 10:57:35,592 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 10:57:35,592 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 10:57:35,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 10:57:35,592 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 10:57:35,593 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 10:57:35,593 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 10:57:35,593 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 10:57:35,593 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 10:57:35,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 10:57:35,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 10:57:35,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 10:57:35,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 10:57:35,594 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 10:57:35,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 10:57:35,595 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 10:57:35,595 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 10:57:35,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 10:57:35,597 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 10:57:35,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 10:57:35,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 10:57:35,598 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 10:57:35,598 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 10:57:35,598 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 10:57:35,598 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 10:57:35,599 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 10:57:35,599 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 10:57:35,599 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 10:57:35,599 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:57:35,599 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 10:57:35,600 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 10:57:35,600 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 10:57:35,600 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 10:57:35,600 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 10:57:35,600 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 10:57:35,601 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 10:57:35,601 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 10:57:35,601 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 10:57:35,601 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 10:57:35,601 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 10:57:35,602 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 10:57:35,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:57:35,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 10:57:35,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:57:36,960 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:57:36,960 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 10:57:36,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:57:36 BoogieIcfgContainer [2020-09-25 10:57:36,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:57:36,975 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:57:36,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:57:36,979 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:57:36,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:57:34" (1/3) ... [2020-09-25 10:57:36,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4931db58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:57:36, skipping insertion in model container [2020-09-25 10:57:36,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:35" (2/3) ... [2020-09-25 10:57:36,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4931db58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:57:36, skipping insertion in model container [2020-09-25 10:57:36,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:57:36" (3/3) ... [2020-09-25 10:57:36,987 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product55.cil.c [2020-09-25 10:57:36,998 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:57:37,011 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:57:37,034 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:57:37,070 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:57:37,070 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:57:37,070 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:57:37,070 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:57:37,070 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:57:37,071 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:57:37,071 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:57:37,071 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:57:37,101 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states. [2020-09-25 10:57:37,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 10:57:37,123 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:57:37,124 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 10:57:37,125 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:57:37,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:57:37,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1599034145, now seen corresponding path program 1 times [2020-09-25 10:57:37,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:57:37,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856895127] [2020-09-25 10:57:37,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:57:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:37,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:37,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:39,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:42,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:42,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 10:57:42,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:57:42,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 10:57:42,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:42,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:42,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 10:57:42,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 10:57:42,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 10:57:42,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 16 [2020-09-25 10:57:43,140 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:57:43,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:57:43,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:43,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:43,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:43,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:57:43,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:43,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-09-25 10:57:43,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:43,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:43,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:43,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:43,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 10:57:43,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:43,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:57:43,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:43,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:43,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:43,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:43,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:43,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:57:43,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:43,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:43,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:43,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:43,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:43,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:43,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:57:43,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:43,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:43,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:43,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:43,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:43,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:57:43,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:43,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:43,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:43,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:43,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:43,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:43,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:57:43,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:43,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:43,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:43,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:43,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:43,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 10:57:43,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:43,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:43,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:43,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:43,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:57:43,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:43,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:57:43,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:43,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:43,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:43,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:43,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:43,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:57:43,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:43,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:43,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:43,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:43,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:43,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:43,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 10:57:43,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:43,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:43,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:43,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:43,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:43,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:57:43,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:43,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:43,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:43,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:43,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:57:43,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:43,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 10:57:43,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:43,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:43,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:43,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:43,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:43,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 10:57:43,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:43,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:43,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:57:43,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:43,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:57:43,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:43,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 10:57:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:43,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:43,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:43,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:43,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:43,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:57:43,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:43,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:43,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:43,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:57:43,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:43,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:43,801 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 10:57:43,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [856895127] [2020-09-25 10:57:43,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:57:43,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 10:57:43,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598614399] [2020-09-25 10:57:43,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:57:43,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:57:43,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:57:43,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:57:43,834 INFO L87 Difference]: Start difference. First operand 349 states. Second operand 8 states. [2020-09-25 10:57:44,379 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:57:46,357 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:57:46,775 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:57:47,265 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:57:47,777 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:57:48,110 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:57:48,438 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:57:48,758 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:57:50,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:57:50,512 INFO L93 Difference]: Finished difference Result 768 states and 947 transitions. [2020-09-25 10:57:50,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 10:57:50,516 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 10:57:50,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:57:50,539 INFO L225 Difference]: With dead ends: 768 [2020-09-25 10:57:50,539 INFO L226 Difference]: Without dead ends: 530 [2020-09-25 10:57:50,548 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 10:57:50,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2020-09-25 10:57:50,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 480. [2020-09-25 10:57:50,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 480 states. [2020-09-25 10:57:50,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 549 transitions. [2020-09-25 10:57:50,721 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 549 transitions. Word has length 153 [2020-09-25 10:57:50,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:57:50,722 INFO L479 AbstractCegarLoop]: Abstraction has 480 states and 549 transitions. [2020-09-25 10:57:50,722 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:57:50,723 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 549 transitions. [2020-09-25 10:57:50,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-25 10:57:50,731 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:57:50,731 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:57:50,732 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:57:50,732 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:57:50,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:57:50,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1534990327, now seen corresponding path program 1 times [2020-09-25 10:57:50,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:57:50,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1482924532] [2020-09-25 10:57:50,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:57:50,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:50,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:51,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:51,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 10:57:51,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:51,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1193 [2020-09-25 10:57:51,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:51,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:51,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:57:51,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 10:57:51,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 10:57:51,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:52,305 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:57:52,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:57:52,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:52,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:52,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:52,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:57:52,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:52,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-09-25 10:57:52,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:52,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:52,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:52,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:52,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 10:57:52,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:52,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:57:52,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:52,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:52,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:52,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:52,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:52,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:57:52,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:52,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:52,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:52,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:52,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:52,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:52,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:57:52,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:52,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:52,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:52,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:52,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:52,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:57:52,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:52,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:52,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:52,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:52,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:52,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:52,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:57:52,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:52,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:52,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:52,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:52,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:52,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:57:52,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:52,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:52,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:52,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:52,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:57:52,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:52,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:57:52,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:52,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:52,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:52,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:52,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:52,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:57:52,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:52,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:52,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:52,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:52,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:52,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:52,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 10:57:52,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:52,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:52,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:52,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:57:52,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:52,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:57:52,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:52,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:52,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:52,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:52,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:57:52,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:52,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 10:57:52,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:52,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:52,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:52,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:52,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:52,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:57:52,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:52,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:52,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:52,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:57:52,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:52,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:52,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-25 10:57:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:52,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:52,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:52,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:52,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:52,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:57:52,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:52,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:52,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:52,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:57:52,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:52,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:52,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 10:57:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:52,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:52,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:52,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:52,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:52,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:57:52,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:52,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:52,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:52,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:57:52,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:52,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:57:52,769 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 10:57:52,770 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1482924532] [2020-09-25 10:57:52,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:57:52,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 10:57:52,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108773971] [2020-09-25 10:57:52,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 10:57:52,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:57:52,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 10:57:52,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 10:57:52,774 INFO L87 Difference]: Start difference. First operand 480 states and 549 transitions. Second operand 5 states. [2020-09-25 10:57:53,322 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:57:56,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:57:56,290 INFO L93 Difference]: Finished difference Result 1303 states and 1577 transitions. [2020-09-25 10:57:56,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 10:57:56,291 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-09-25 10:57:56,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:57:56,301 INFO L225 Difference]: With dead ends: 1303 [2020-09-25 10:57:56,301 INFO L226 Difference]: Without dead ends: 933 [2020-09-25 10:57:56,304 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:57:56,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2020-09-25 10:57:56,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 829. [2020-09-25 10:57:56,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 829 states. [2020-09-25 10:57:56,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 961 transitions. [2020-09-25 10:57:56,430 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 961 transitions. Word has length 168 [2020-09-25 10:57:56,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:57:56,431 INFO L479 AbstractCegarLoop]: Abstraction has 829 states and 961 transitions. [2020-09-25 10:57:56,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 10:57:56,431 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 961 transitions. [2020-09-25 10:57:56,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-09-25 10:57:56,437 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:57:56,438 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:57:56,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:57:56,438 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:57:56,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:57:56,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1900766406, now seen corresponding path program 1 times [2020-09-25 10:57:56,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:57:56,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [149723410] [2020-09-25 10:57:56,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:57:56,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:56,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:56,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:57,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:57,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:58:00,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:58:01,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:58:01,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-09-25 10:58:01,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:58:01,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-25 10:58:01,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:58:01,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:58:01,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 10:58:01,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 10:58:01,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-25 10:58:01,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:58:01,823 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:58:01,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:58:01,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:58:01,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:58:02,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:58:02,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:58:02,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:58:02,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-09-25 10:58:02,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:58:02,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:58:02,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:58:02,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:58:02,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 10:58:02,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:58:02,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:58:02,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:58:02,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:58:02,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:58:02,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:58:02,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:58:02,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:58:02,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:58:02,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:58:02,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:58:02,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:58:02,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:58:02,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:58:02,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:58:02,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:58:02,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:58:02,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:58:02,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:58:02,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:58:02,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:58:02,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:58:02,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:58:02,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:58:02,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:58:02,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:58:02,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:58:02,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:58:02,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:58:02,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:58:02,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:58:02,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:58:02,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:58:02,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:58:02,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:58:02,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:58:02,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:58:02,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:58:02,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:58:02,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:58:02,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:58:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:58:02,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:58:02,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:58:02,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:58:02,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:58:02,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:58:02,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:58:02,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:58:02,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:58:02,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:58:02,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:58:02,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:58:02,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 10:58:02,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:58:02,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:58:02,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:58:02,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:58:02,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:58:02,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:58:02,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:58:02,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:58:02,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:58:02,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:58:02,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:58:02,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:58:02,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 10:58:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:58:02,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:58:02,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:58:02,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:58:02,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:58:02,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 10:58:02,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:58:02,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 10:58:02,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:58:02,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:58:02,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:58:02,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:58:02,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 10:58:02,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:58:02,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:58:02,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:58:02,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:58:02,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:58:02,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:58:02,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 10:58:02,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:58:02,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 10:58:02,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:58:02,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:58:02,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:58:02,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:58:02,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:58:02,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:58:02,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:58:02,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:58:02,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:58:02,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:58:02,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:58:02,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:58:02,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:58:02,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:58:02,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:58:02,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:58:02,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:58:02,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 10:58:02,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:58:02,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:58:02,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:58:02,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:58:02,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:58:02,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:58:02,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:58:02,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:58:02,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:58:02,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:58:02,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:58:02,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:58:02,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:58:02,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:58:02,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 10:58:02,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:58:02,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:58:02,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:58:02,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:58:02,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:58:02,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:58:02,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:58:02,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:58:02,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:58:02,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:58:02,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:58:02,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:58:02,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-25 10:58:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:58:02,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:58:02,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:58:02,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:58:02,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:58:02,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:58:02,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:58:02,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:58:02,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:58:02,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:58:02,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:58:02,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:58:02,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-25 10:58:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:58:02,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:58:02,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:58:02,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:58:02,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:58:02,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:58:02,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:58:02,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:58:02,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:58:02,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:58:02,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:58:02,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:58:02,386 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 10:58:02,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [149723410] [2020-09-25 10:58:02,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:58:02,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 10:58:02,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498882228] [2020-09-25 10:58:02,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 10:58:02,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:58:02,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 10:58:02,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:58:02,390 INFO L87 Difference]: Start difference. First operand 829 states and 961 transitions. Second operand 7 states. [2020-09-25 10:58:02,961 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:58:04,718 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:58:07,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:58:07,062 INFO L93 Difference]: Finished difference Result 2155 states and 2765 transitions. [2020-09-25 10:58:07,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 10:58:07,063 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 186 [2020-09-25 10:58:07,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:58:07,081 INFO L225 Difference]: With dead ends: 2155 [2020-09-25 10:58:07,082 INFO L226 Difference]: Without dead ends: 1436 [2020-09-25 10:58:07,086 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-09-25 10:58:07,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2020-09-25 10:58:07,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1209. [2020-09-25 10:58:07,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1209 states. [2020-09-25 10:58:07,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 1413 transitions. [2020-09-25 10:58:07,286 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 1413 transitions. Word has length 186 [2020-09-25 10:58:07,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:58:07,288 INFO L479 AbstractCegarLoop]: Abstraction has 1209 states and 1413 transitions. [2020-09-25 10:58:07,288 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 10:58:07,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 1413 transitions. [2020-09-25 10:58:07,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 10:58:07,293 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:58:07,293 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 10:58:07,293 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:58:07,293 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:58:07,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:58:07,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1515693883, now seen corresponding path program 1 times [2020-09-25 10:58:07,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:58:07,295 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1673765494] [2020-09-25 10:58:07,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:58:07,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 10:58:07,367 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 10:58:07,368 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 10:58:07,375 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 10:58:07,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 10:58:07 BoogieIcfgContainer [2020-09-25 10:58:07,409 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 10:58:07,412 INFO L168 Benchmark]: Toolchain (without parser) took 32780.78 ms. Allocated memory was 139.5 MB in the beginning and 609.2 MB in the end (delta: 469.8 MB). Free memory was 100.2 MB in the beginning and 118.5 MB in the end (delta: -18.4 MB). Peak memory consumption was 451.4 MB. Max. memory is 7.1 GB. [2020-09-25 10:58:07,412 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 10:58:07,414 INFO L168 Benchmark]: CACSL2BoogieTranslator took 728.68 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 99.5 MB in the beginning and 171.5 MB in the end (delta: -72.0 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. [2020-09-25 10:58:07,416 INFO L168 Benchmark]: Boogie Preprocessor took 112.45 ms. Allocated memory is still 203.4 MB. Free memory was 171.5 MB in the beginning and 167.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-25 10:58:07,423 INFO L168 Benchmark]: RCFGBuilder took 1495.54 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 167.4 MB in the beginning and 173.6 MB in the end (delta: -6.2 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. [2020-09-25 10:58:07,424 INFO L168 Benchmark]: TraceAbstraction took 30434.64 ms. Allocated memory was 236.5 MB in the beginning and 609.2 MB in the end (delta: 372.8 MB). Free memory was 172.2 MB in the beginning and 118.5 MB in the end (delta: 53.6 MB). Peak memory consumption was 426.4 MB. Max. memory is 7.1 GB. [2020-09-25 10:58:07,434 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 728.68 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 99.5 MB in the beginning and 171.5 MB in the end (delta: -72.0 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.45 ms. Allocated memory is still 203.4 MB. Free memory was 171.5 MB in the beginning and 167.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1495.54 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 167.4 MB in the beginning and 173.6 MB in the end (delta: -6.2 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30434.64 ms. Allocated memory was 236.5 MB in the beginning and 609.2 MB in the end (delta: 372.8 MB). Free memory was 172.2 MB in the beginning and 118.5 MB in the end (delta: 53.6 MB). Peak memory consumption was 426.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 193]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L86] int waterLevel = 1; [L87] int methaneLevelCritical = 0; [L367] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L564] int cleanupTimeShifts = 4; [L667] int pumpRunning = 0; [L668] int systemActive = 1; [L640] int retValue_acc ; [L641] int tmp ; [L645] FCALL select_helpers() [L646] FCALL select_features() [L647] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L647] RET, EXPR valid_product() [L647] tmp = valid_product() [L649] COND TRUE \read(tmp) [L651] FCALL setup() [L652] CALL runTest() [L634] CALL test() [L941] int splverifierCounter ; [L942] int tmp ; [L943] int tmp___0 ; [L944] int tmp___1 ; [L945] int tmp___2 ; [L948] splverifierCounter = 0 [L950] COND TRUE 1 [L952] COND TRUE splverifierCounter < 4 [L958] tmp = __VERIFIER_nondet_int() [L960] COND TRUE \read(tmp) [L962] CALL waterRise() [L104] COND TRUE waterLevel < 2 [L105] waterLevel = waterLevel + 1 [L962] RET waterRise() [L968] tmp___0 = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp___0)) [L978] tmp___2 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___2)) [L984] tmp___1 = __VERIFIER_nondet_int() [L986] COND TRUE \read(tmp___1) [L988] CALL stopSystem() [L894] COND FALSE !(\read(pumpRunning)) [L901] systemActive = 0 [L988] RET stopSystem() [L995] CALL timeShift() [L675] COND FALSE !(\read(pumpRunning)) [L682] COND FALSE !(\read(systemActive)) [L690] CALL __utac_acc__Specification3_spec__1() [L907] int tmp ; [L908] int tmp___0 ; [L909] int tmp___1 ; [L913] CALL, EXPR isMethaneLevelCritical() [L125] int retValue_acc ; [L128] retValue_acc = methaneLevelCritical [L129] return (retValue_acc); [L913] RET, EXPR isMethaneLevelCritical() [L913] tmp = isMethaneLevelCritical() [L915] COND FALSE !(\read(tmp)) [L919] CALL, EXPR getWaterLevel() [L157] int retValue_acc ; [L160] retValue_acc = waterLevel [L161] return (retValue_acc); [L919] RET, EXPR getWaterLevel() [L919] tmp___0 = getWaterLevel() [L921] COND TRUE tmp___0 == 2 [L923] CALL, EXPR isPumpRunning() [L808] int retValue_acc ; [L811] retValue_acc = pumpRunning [L812] return (retValue_acc); [L923] RET, EXPR isPumpRunning() [L923] tmp___1 = isPumpRunning() [L925] COND FALSE !(\read(tmp___1)) [L929] CALL __automaton_fail() [L193] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 661 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 14.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 999 SDtfs, 1833 SDslu, 1200 SDs, 0 SdLazy, 3083 SolverSat, 691 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 78 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1209occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 3 MinimizatonAttempts, 381 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 14.0s InterpolantComputationTime, 684 NumberOfCodeBlocks, 684 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 504 ConstructedInterpolants, 0 QuantifiedInterpolants, 228395 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...