/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_product60.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:24:45,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:24:45,944 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:24:45,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:24:45,985 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:24:45,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:24:45,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:24:45,999 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:24:46,001 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:24:46,004 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:24:46,005 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:24:46,007 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:24:46,007 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:24:46,010 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:24:46,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:24:46,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:24:46,016 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:24:46,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:24:46,019 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:24:46,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:24:46,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:24:46,030 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:24:46,031 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:24:46,032 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:24:46,044 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:24:46,044 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:24:46,050 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:24:46,051 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:24:46,051 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:24:46,052 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:24:46,052 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:24:46,056 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:24:46,057 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:24:46,058 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:24:46,059 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:24:46,059 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:24:46,060 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:24:46,060 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:24:46,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:24:46,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:24:46,062 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:24:46,063 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 06:24:46,088 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:24:46,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:24:46,089 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:24:46,089 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:24:46,090 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:24:46,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:24:46,090 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:24:46,090 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:24:46,091 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:24:46,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:24:46,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:24:46,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:24:46,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:24:46,091 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:24:46,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:24:46,092 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:24:46,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:24:46,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:24:46,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:24:46,093 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:24:46,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:24:46,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:24:46,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:24:46,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:24:46,094 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:24:46,094 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:24:46,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:24:46,094 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:24:46,094 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:24:46,095 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:24:46,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:24:46,568 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:24:46,572 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:24:46,574 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:24:46,574 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:24:46,575 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product60.cil.c [2020-09-25 06:24:46,659 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/24fca1163/9591f5c359734ddf87f93e9c633e94e0/FLAG4c9449f9d [2020-09-25 06:24:47,282 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:24:47,283 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product60.cil.c [2020-09-25 06:24:47,299 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/24fca1163/9591f5c359734ddf87f93e9c633e94e0/FLAG4c9449f9d [2020-09-25 06:24:47,557 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/24fca1163/9591f5c359734ddf87f93e9c633e94e0 [2020-09-25 06:24:47,569 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:24:47,576 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:24:47,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:24:47,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:24:47,582 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:24:47,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:24:47" (1/1) ... [2020-09-25 06:24:47,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:47, skipping insertion in model container [2020-09-25 06:24:47,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:24:47" (1/1) ... [2020-09-25 06:24:47,599 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:24:47,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:24:48,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:24:48,157 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:24:48,251 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:24:48,292 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:24:48,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:48 WrapperNode [2020-09-25 06:24:48,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:24:48,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:24:48,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:24:48,294 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:24:48,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:48" (1/1) ... [2020-09-25 06:24:48,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:48" (1/1) ... [2020-09-25 06:24:48,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:48" (1/1) ... [2020-09-25 06:24:48,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:48" (1/1) ... [2020-09-25 06:24:48,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:48" (1/1) ... [2020-09-25 06:24:48,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:48" (1/1) ... [2020-09-25 06:24:48,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:48" (1/1) ... [2020-09-25 06:24:48,389 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:24:48,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:24:48,390 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:24:48,390 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:24:48,391 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:48" (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 06:24:48,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:24:48,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:24:48,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:24:48,494 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:24:48,494 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:24:48,494 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:24:48,494 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 06:24:48,496 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:24:48,496 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 06:24:48,496 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:24:48,497 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:24:48,497 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:24:48,497 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:24:48,497 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:24:48,497 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 06:24:48,498 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 06:24:48,499 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 06:24:48,499 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 06:24:48,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 06:24:48,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:24:48,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:24:48,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:24:48,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:24:48,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:24:48,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:24:48,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:24:48,501 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:24:48,501 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:24:48,502 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:24:48,502 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:24:48,502 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:24:48,502 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:24:48,502 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:24:48,502 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:24:48,502 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:24:48,503 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:24:48,503 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 06:24:48,503 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 06:24:48,503 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:24:48,504 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:24:48,505 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:24:48,505 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:24:48,505 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:24:48,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:24:48,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:24:48,506 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:24:48,506 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:24:48,506 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:24:48,506 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 06:24:48,506 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 06:24:48,507 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:24:48,507 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:24:48,507 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:24:48,507 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:24:48,507 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:24:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:24:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 06:24:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 06:24:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:24:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:24:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:24:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:24:48,509 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 06:24:48,509 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:24:48,509 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:24:48,509 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 06:24:48,509 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 06:24:48,510 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 06:24:48,510 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 06:24:48,510 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:24:48,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:24:48,512 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:24:48,512 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:24:48,512 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:24:48,513 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:24:48,513 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:24:48,513 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:24:48,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:24:48,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:24:48,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:24:48,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:24:48,514 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:24:48,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:24:48,514 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:24:48,514 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:24:48,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:24:48,514 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:24:48,514 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:24:48,515 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:24:48,515 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:24:48,515 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:24:48,515 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:24:48,515 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:24:48,515 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:24:48,515 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:24:48,516 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:24:48,516 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:24:48,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:24:48,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:24:48,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:24:49,641 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:24:49,642 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:24:49,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:24:49 BoogieIcfgContainer [2020-09-25 06:24:49,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:24:49,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:24:49,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:24:49,655 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:24:49,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:24:47" (1/3) ... [2020-09-25 06:24:49,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3958deda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:24:49, skipping insertion in model container [2020-09-25 06:24:49,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:48" (2/3) ... [2020-09-25 06:24:49,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3958deda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:24:49, skipping insertion in model container [2020-09-25 06:24:49,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:24:49" (3/3) ... [2020-09-25 06:24:49,660 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product60.cil.c [2020-09-25 06:24:49,672 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:24:49,684 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:24:49,707 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:24:49,743 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:24:49,744 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:24:49,744 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:24:49,744 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:24:49,744 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:24:49,744 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:24:49,745 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:24:49,745 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:24:49,776 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states. [2020-09-25 06:24:49,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 06:24:49,796 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:24:49,798 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 06:24:49,798 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:24:49,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:24:49,808 INFO L82 PathProgramCache]: Analyzing trace with hash 179280132, now seen corresponding path program 1 times [2020-09-25 06:24:49,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:24:49,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [949552834] [2020-09-25 06:24:49,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:24:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:50,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:50,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:52,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:55,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:55,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 06:24:55,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:24:55,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 06:24:55,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:55,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:55,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:55,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 06:24:55,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:55,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-25 06:24:55,605 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:24:55,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:24:55,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:55,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:55,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:55,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:24:55,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:55,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-25 06:24:55,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:55,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:55,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:55,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:55,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:55,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:55,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:24:55,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:55,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:55,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:55,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:24:55,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:55,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:24:55,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:55,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:55,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:55,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:55,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:55,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:55,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:24:55,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:55,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:55,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:55,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:24:55,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:55,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:24:55,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:55,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:55,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:55,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:55,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:55,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:55,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:24:55,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:55,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:55,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:55,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:55,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:55,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:24:55,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:55,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:55,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:55,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:55,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:55,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:55,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:24:55,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:55,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:55,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:55,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:24:55,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:55,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:24:55,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:55,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:55,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:55,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:55,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:55,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:55,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 06:24:55,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:55,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:55,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:55,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:55,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:55,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:24:55,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:55,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:55,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:55,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:24:55,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:55,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:55,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 06:24:55,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:55,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:55,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:55,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:55,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:55,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:24:55,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:55,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:55,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:55,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:24:55,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:55,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:55,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 06:24:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:55,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:55,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:55,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:55,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:55,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:24:55,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:55,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:55,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:55,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:24:55,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:55,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:56,001 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 06:24:56,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [949552834] [2020-09-25 06:24:56,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:24:56,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:24:56,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962320876] [2020-09-25 06:24:56,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:24:56,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:24:56,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:24:56,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:24:56,041 INFO L87 Difference]: Start difference. First operand 350 states. Second operand 3 states. [2020-09-25 06:24:57,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:24:57,509 INFO L93 Difference]: Finished difference Result 570 states and 673 transitions. [2020-09-25 06:24:57,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:24:57,512 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 06:24:57,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:24:57,534 INFO L225 Difference]: With dead ends: 570 [2020-09-25 06:24:57,534 INFO L226 Difference]: Without dead ends: 345 [2020-09-25 06:24:57,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:24:57,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-09-25 06:24:57,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 299. [2020-09-25 06:24:57,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-09-25 06:24:57,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 326 transitions. [2020-09-25 06:24:57,671 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 326 transitions. Word has length 153 [2020-09-25 06:24:57,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:24:57,671 INFO L479 AbstractCegarLoop]: Abstraction has 299 states and 326 transitions. [2020-09-25 06:24:57,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:24:57,672 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 326 transitions. [2020-09-25 06:24:57,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 06:24:57,676 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:24:57,677 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:24:57,677 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:24:57,677 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:24:57,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:24:57,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1644789212, now seen corresponding path program 1 times [2020-09-25 06:24:57,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:24:57,678 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [255056415] [2020-09-25 06:24:57,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:24:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:57,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:57,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:59,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:25:02,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:25:02,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 06:25:02,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:25:02,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 06:25:02,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:25:02,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:25:02,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:25:02,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 06:25:02,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:25:02,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:25:03,088 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:25:03,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:25:03,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:25:03,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:25:03,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:25:03,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:25:03,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:25:03,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 06:25:03,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:25:03,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:25:03,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:25:03,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:25:03,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:25:03,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:25:03,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:25:03,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:25:03,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:25:03,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:25:03,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:25:03,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:25:03,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:25:03,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:25:03,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:25:03,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:25:03,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:25:03,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:25:03,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:25:03,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:25:03,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:25:03,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:25:03,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:25:03,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:25:03,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:25:03,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:25:03,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:25:03,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:25:03,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:25:03,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:25:03,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:25:03,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:25:03,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:25:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:25:03,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:25:03,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:25:03,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:25:03,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:25:03,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:25:03,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:25:03,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:25:03,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:25:03,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:25:03,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:25:03,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:25:03,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:25:03,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:25:03,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:25:03,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:25:03,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:25:03,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:25:03,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:25:03,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:25:03,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:25:03,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:25:03,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:25:03,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:25:03,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:25:03,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 06:25:03,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:25:03,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:25:03,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:25:03,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:25:03,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:25:03,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:25:03,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:25:03,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:25:03,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:25:03,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:25:03,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:25:03,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:25:03,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 06:25:03,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:25:03,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:25:03,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:25:03,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:25:03,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:25:03,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:25:03,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:25:03,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:25:03,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:25:03,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:25:03,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:25:03,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:25:03,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 06:25:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:25:03,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:25:03,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:25:03,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:25:03,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:25:03,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:25:03,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:25:03,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:25:03,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:25:03,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:25:03,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:25:03,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:25:03,304 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 06:25:03,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [255056415] [2020-09-25 06:25:03,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:25:03,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:25:03,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891805988] [2020-09-25 06:25:03,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:25:03,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:25:03,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:25:03,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:25:03,308 INFO L87 Difference]: Start difference. First operand 299 states and 326 transitions. Second operand 4 states. [2020-09-25 06:25:03,954 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:25:05,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:25:05,138 INFO L93 Difference]: Finished difference Result 477 states and 536 transitions. [2020-09-25 06:25:05,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:25:05,139 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 06:25:05,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:25:05,144 INFO L225 Difference]: With dead ends: 477 [2020-09-25 06:25:05,144 INFO L226 Difference]: Without dead ends: 328 [2020-09-25 06:25:05,147 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:25:05,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2020-09-25 06:25:05,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 289. [2020-09-25 06:25:05,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2020-09-25 06:25:05,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 313 transitions. [2020-09-25 06:25:05,194 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 313 transitions. Word has length 154 [2020-09-25 06:25:05,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:25:05,195 INFO L479 AbstractCegarLoop]: Abstraction has 289 states and 313 transitions. [2020-09-25 06:25:05,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:25:05,195 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 313 transitions. [2020-09-25 06:25:05,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 06:25:05,198 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:25:05,198 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:25:05,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:25:05,198 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:25:05,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:25:05,199 INFO L82 PathProgramCache]: Analyzing trace with hash -205094291, now seen corresponding path program 1 times [2020-09-25 06:25:05,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:25:05,199 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2032594290] [2020-09-25 06:25:05,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:25:05,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:25:05,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:25:05,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:25:08,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:25:08,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 06:25:08,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:25:08,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2759 [2020-09-25 06:25:08,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:25:08,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:25:08,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:25:08,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 06:25:08,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:25:08,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:25:08,394 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:25:08,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:25:08,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:25:08,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:25:08,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:25:08,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:25:08,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:25:08,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 06:25:08,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:25:08,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:25:08,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:25:08,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:25:08,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:25:08,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:25:08,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:25:08,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:25:08,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:25:08,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:25:08,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:25:08,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:25:08,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:25:08,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:25:08,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:25:08,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:25:08,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:25:08,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:25:08,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:25:08,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:25:08,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:25:08,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:25:08,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:25:08,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:25:08,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:25:08,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:25:08,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:25:08,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:25:08,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:25:08,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:25:08,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:25:08,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:25:08,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:25:08,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:25:08,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:25:08,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:25:08,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:25:08,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:25:08,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:25:08,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:25:08,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:25:08,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:25:08,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:25:08,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:25:08,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:25:08,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:25:08,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:25:08,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:25:08,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:25:08,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:25:08,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:25:08,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:25:08,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:25:08,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:25:08,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:25:08,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:25:08,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:25:08,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:25:08,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 06:25:08,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:25:08,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:25:08,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:25:08,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:25:08,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:25:08,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:25:08,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:25:08,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:25:08,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:25:08,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:25:08,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:25:08,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:25:08,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 06:25:08,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:25:08,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:25:08,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:25:08,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:25:08,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:25:08,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:25:08,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:25:08,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:25:08,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:25:08,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:25:08,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:25:08,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:25:08,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 06:25:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:25:08,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:25:08,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:25:08,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:25:08,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:25:08,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:25:08,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:25:08,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:25:08,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:25:08,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:25:08,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:25:08,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:25:08,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 06:25:08,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:25:08,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:25:08,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:25:08,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:25:08,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:25:08,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:25:08,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:25:08,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:25:08,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:25:08,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:25:08,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:25:08,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:25:08,624 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 06:25:08,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2032594290] [2020-09-25 06:25:08,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:25:08,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:25:08,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913086786] [2020-09-25 06:25:08,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:25:08,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:25:08,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:25:08,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:25:08,627 INFO L87 Difference]: Start difference. First operand 289 states and 313 transitions. Second operand 5 states. [2020-09-25 06:25:09,128 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:25:11,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:25:11,204 INFO L93 Difference]: Finished difference Result 721 states and 830 transitions. [2020-09-25 06:25:11,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:25:11,205 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-25 06:25:11,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:25:11,211 INFO L225 Difference]: With dead ends: 721 [2020-09-25 06:25:11,211 INFO L226 Difference]: Without dead ends: 542 [2020-09-25 06:25:11,213 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:25:11,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2020-09-25 06:25:11,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 458. [2020-09-25 06:25:11,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458 states. [2020-09-25 06:25:11,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 507 transitions. [2020-09-25 06:25:11,290 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 507 transitions. Word has length 167 [2020-09-25 06:25:11,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:25:11,290 INFO L479 AbstractCegarLoop]: Abstraction has 458 states and 507 transitions. [2020-09-25 06:25:11,291 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:25:11,291 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 507 transitions. [2020-09-25 06:25:11,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 06:25:11,294 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:25:11,294 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:25:11,295 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:25:11,295 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:25:11,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:25:11,295 INFO L82 PathProgramCache]: Analyzing trace with hash 935759642, now seen corresponding path program 1 times [2020-09-25 06:25:11,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:25:11,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [803240860] [2020-09-25 06:25:11,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:25:11,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:25:11,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:25:13,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:25:13,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 06:25:13,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:25:13,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1670 [2020-09-25 06:25:13,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:25:13,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:25:13,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 06:25:13,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 06:25:13,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-25 06:25:13,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:25:13,309 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:25:13,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:25:13,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:25:13,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:25:13,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:25:13,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:25:13,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:25:13,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-09-25 06:25:13,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:25:13,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:25:13,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:25:13,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:25:13,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 06:25:13,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:25:13,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:25:13,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:25:13,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:25:13,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:25:13,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:25:13,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:25:13,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:25:13,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:25:13,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:25:13,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:25:13,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:25:13,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:25:13,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:25:13,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:25:13,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:25:13,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:25:13,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:25:13,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:25:13,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:25:13,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:25:13,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:25:13,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:25:13,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:25:13,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:25:13,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:25:13,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:25:13,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:25:13,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:25:13,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:25:13,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:25:13,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:25:13,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:25:13,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:25:13,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:25:13,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:25:13,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:25:13,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:25:13,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:25:13,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:25:13,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:25:13,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:25:13,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:25:13,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:25:13,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:25:13,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:25:13,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:25:13,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:25:13,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:25:13,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:25:13,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:25:13,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:25:13,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:25:13,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 06:25:13,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:25:13,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:25:13,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:25:13,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:25:13,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:25:13,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:25:13,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:25:13,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:25:13,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:25:13,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:25:13,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:25:13,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:25:13,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 06:25:13,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:25:13,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:25:13,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:25:13,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:25:13,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:25:13,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:25:13,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:25:13,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:25:13,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:25:13,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:25:13,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:25:13,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:25:13,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 06:25:13,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:25:13,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:25:13,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:25:13,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:25:13,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:25:13,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:25:13,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:25:13,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:25:13,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:25:13,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:25:13,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:25:13,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:25:13,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 06:25:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:25:13,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:25:13,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:25:13,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:25:13,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:25:13,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:25:13,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:25:13,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:25:13,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:25:13,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:25:13,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:25:13,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:25:13,823 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 06:25:13,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [803240860] [2020-09-25 06:25:13,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:25:13,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 06:25:13,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055399146] [2020-09-25 06:25:13,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:25:13,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:25:13,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:25:13,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:25:13,827 INFO L87 Difference]: Start difference. First operand 458 states and 507 transitions. Second operand 9 states. [2020-09-25 06:25:14,473 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:25:16,618 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:25:16,941 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:25:17,325 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:25:17,751 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:25:18,060 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:25:18,351 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:25:18,653 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:25:19,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:25:19,900 INFO L93 Difference]: Finished difference Result 1248 states and 1479 transitions. [2020-09-25 06:25:19,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 06:25:19,901 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-25 06:25:19,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:25:19,908 INFO L225 Difference]: With dead ends: 1248 [2020-09-25 06:25:19,908 INFO L226 Difference]: Without dead ends: 900 [2020-09-25 06:25:19,910 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 06:25:19,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2020-09-25 06:25:20,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 797. [2020-09-25 06:25:20,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 797 states. [2020-09-25 06:25:20,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 901 transitions. [2020-09-25 06:25:20,060 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 901 transitions. Word has length 172 [2020-09-25 06:25:20,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:25:20,061 INFO L479 AbstractCegarLoop]: Abstraction has 797 states and 901 transitions. [2020-09-25 06:25:20,061 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 06:25:20,062 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 901 transitions. [2020-09-25 06:25:20,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 06:25:20,066 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:25:20,066 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 06:25:20,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:25:20,067 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:25:20,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:25:20,067 INFO L82 PathProgramCache]: Analyzing trace with hash 403214129, now seen corresponding path program 1 times [2020-09-25 06:25:20,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:25:20,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1920231425] [2020-09-25 06:25:20,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:25:20,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 06:25:20,128 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 06:25:20,128 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 06:25:20,133 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:25:20,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 06:25:20 BoogieIcfgContainer [2020-09-25 06:25:20,160 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 06:25:20,162 INFO L168 Benchmark]: Toolchain (without parser) took 32590.96 ms. Allocated memory was 140.5 MB in the beginning and 671.6 MB in the end (delta: 531.1 MB). Free memory was 102.9 MB in the beginning and 570.1 MB in the end (delta: -467.2 MB). Peak memory consumption was 63.9 MB. Max. memory is 7.1 GB. [2020-09-25 06:25:20,163 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 06:25:20,164 INFO L168 Benchmark]: CACSL2BoogieTranslator took 716.46 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 102.2 MB in the beginning and 173.1 MB in the end (delta: -70.9 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. [2020-09-25 06:25:20,165 INFO L168 Benchmark]: Boogie Preprocessor took 95.52 ms. Allocated memory is still 204.5 MB. Free memory was 173.1 MB in the beginning and 169.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-25 06:25:20,166 INFO L168 Benchmark]: RCFGBuilder took 1260.91 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 169.0 MB in the beginning and 173.3 MB in the end (delta: -4.4 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. [2020-09-25 06:25:20,166 INFO L168 Benchmark]: TraceAbstraction took 30508.60 ms. Allocated memory was 237.5 MB in the beginning and 671.6 MB in the end (delta: 434.1 MB). Free memory was 171.9 MB in the beginning and 570.1 MB in the end (delta: -398.2 MB). Peak memory consumption was 36.0 MB. Max. memory is 7.1 GB. [2020-09-25 06:25:20,170 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 716.46 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 102.2 MB in the beginning and 173.1 MB in the end (delta: -70.9 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 95.52 ms. Allocated memory is still 204.5 MB. Free memory was 173.1 MB in the beginning and 169.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1260.91 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 169.0 MB in the beginning and 173.3 MB in the end (delta: -4.4 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30508.60 ms. Allocated memory was 237.5 MB in the beginning and 671.6 MB in the end (delta: 434.1 MB). Free memory was 171.9 MB in the beginning and 570.1 MB in the end (delta: -398.2 MB). Peak memory consumption was 36.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 769]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L124] int pumpRunning = 0; [L125] int systemActive = 1; [L568] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L812] int waterLevel = 1; [L813] int methaneLevelCritical = 0; [L915] int cleanupTimeShifts = 4; [L988] int retValue_acc ; [L989] int tmp ; [L993] FCALL select_helpers() [L994] FCALL select_features() [L995] CALL, EXPR valid_product() [L803] int retValue_acc ; [L806] retValue_acc = 1 [L807] return (retValue_acc); [L995] RET, EXPR valid_product() [L995] tmp = valid_product() [L997] COND TRUE \read(tmp) [L999] FCALL setup() [L1000] CALL runTest() [L982] CALL test() [L47] int splverifierCounter ; [L48] int tmp ; [L49] int tmp___0 ; [L50] int tmp___1 ; [L51] int tmp___2 ; [L54] splverifierCounter = 0 [L56] COND TRUE 1 [L58] COND TRUE splverifierCounter < 4 [L64] tmp = __VERIFIER_nondet_int() [L66] COND TRUE \read(tmp) [L68] CALL waterRise() [L830] COND TRUE waterLevel < 2 [L831] waterLevel = waterLevel + 1 [L68] RET waterRise() [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___2)) [L92] tmp___1 = __VERIFIER_nondet_int() [L94] COND TRUE \read(tmp___1) [L96] CALL stopSystem() [L343] COND FALSE !(\read(pumpRunning)) [L350] systemActive = 0 [L96] RET stopSystem() [L103] CALL timeShift() [L132] COND FALSE !(\read(pumpRunning)) [L139] COND FALSE !(\read(systemActive)) [L147] CALL __utac_acc__Specification3_spec__1() [L366] int tmp ; [L367] int tmp___0 ; [L368] int tmp___1 ; [L372] CALL, EXPR isMethaneLevelCritical() [L851] int retValue_acc ; [L854] retValue_acc = methaneLevelCritical [L855] return (retValue_acc); [L372] RET, EXPR isMethaneLevelCritical() [L372] tmp = isMethaneLevelCritical() [L374] COND FALSE !(\read(tmp)) [L378] CALL, EXPR getWaterLevel() [L883] int retValue_acc ; [L886] retValue_acc = waterLevel [L887] return (retValue_acc); [L378] RET, EXPR getWaterLevel() [L378] tmp___0 = getWaterLevel() [L380] COND TRUE tmp___0 == 2 [L382] CALL, EXPR isPumpRunning() [L257] int retValue_acc ; [L260] retValue_acc = pumpRunning [L261] return (retValue_acc); [L382] RET, EXPR isPumpRunning() [L382] tmp___1 = isPumpRunning() [L384] COND FALSE !(\read(tmp___1)) [L388] CALL __automaton_fail() [L769] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 662 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 12.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1152 SDtfs, 1703 SDslu, 898 SDs, 0 SdLazy, 2484 SolverSat, 567 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=797occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 272 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 17.0s InterpolantComputationTime, 823 NumberOfCodeBlocks, 823 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 642 ConstructedInterpolants, 0 QuantifiedInterpolants, 245630 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...