/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:49:35,753 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:49:35,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:49:35,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:49:35,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:49:35,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:49:35,803 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:49:35,805 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:49:35,807 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:49:35,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:49:35,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:49:35,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:49:35,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:49:35,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:49:35,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:49:35,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:49:35,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:49:35,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:49:35,819 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:49:35,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:49:35,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:49:35,824 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:49:35,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:49:35,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:49:35,829 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:49:35,830 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:49:35,830 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:49:35,831 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:49:35,832 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:49:35,836 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:49:35,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:49:35,837 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:49:35,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:49:35,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:49:35,842 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:49:35,843 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:49:35,844 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:49:35,844 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:49:35,844 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:49:35,846 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:49:35,848 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:49:35,849 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 16:49:35,898 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:49:35,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:49:35,901 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:49:35,901 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:49:35,901 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:49:35,901 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:49:35,902 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:49:35,902 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:49:35,902 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:49:35,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:49:35,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:49:35,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:49:35,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:49:35,904 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:49:35,904 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:49:35,905 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:49:35,905 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:49:35,905 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:49:35,905 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:49:35,906 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:49:35,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:49:35,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:49:35,906 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:49:35,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:49:35,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:49:35,907 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:49:35,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:49:35,907 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:49:35,907 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:49:35,908 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;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;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;log-additional-information=true; [2020-09-24 16:49:36,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:49:36,383 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:49:36,387 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:49:36,388 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:49:36,389 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:49:36,390 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2020-09-24 16:49:36,468 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d51597bbe/1eb427178aaa4f0cabc13edd3dc81c52/FLAG8087acb76 [2020-09-24 16:49:37,145 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:49:37,146 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2020-09-24 16:49:37,178 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d51597bbe/1eb427178aaa4f0cabc13edd3dc81c52/FLAG8087acb76 [2020-09-24 16:49:37,346 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d51597bbe/1eb427178aaa4f0cabc13edd3dc81c52 [2020-09-24 16:49:37,362 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:49:37,369 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:49:37,372 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:49:37,372 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:49:37,377 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:49:37,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:49:37" (1/1) ... [2020-09-24 16:49:37,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cafb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:37, skipping insertion in model container [2020-09-24 16:49:37,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:49:37" (1/1) ... [2020-09-24 16:49:37,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:49:37,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:49:37,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:49:37,879 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:49:38,045 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:49:38,088 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:49:38,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:38 WrapperNode [2020-09-24 16:49:38,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:49:38,091 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:49:38,091 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:49:38,092 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:49:38,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:38" (1/1) ... [2020-09-24 16:49:38,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:38" (1/1) ... [2020-09-24 16:49:38,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:38" (1/1) ... [2020-09-24 16:49:38,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:38" (1/1) ... [2020-09-24 16:49:38,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:38" (1/1) ... [2020-09-24 16:49:38,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:38" (1/1) ... [2020-09-24 16:49:38,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:38" (1/1) ... [2020-09-24 16:49:38,201 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:49:38,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:49:38,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:49:38,202 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:49:38,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:49:38,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:49:38,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:49:38,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:49:38,291 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:49:38,291 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:49:38,291 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:49:38,291 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:49:38,292 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:49:38,292 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:49:38,293 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:49:38,293 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:49:38,293 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:49:38,293 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:49:38,293 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:49:38,294 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:49:38,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 16:49:38,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:49:38,295 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:49:38,295 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:49:38,295 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:49:38,296 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:49:38,296 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:49:38,296 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:49:38,296 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:49:38,297 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:49:38,297 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:49:38,298 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:49:38,298 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:49:38,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:49:38,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:49:38,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:49:38,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:49:38,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:49:38,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:49:38,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:49:38,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:49:38,299 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:49:38,299 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:49:38,299 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:49:38,300 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:49:38,300 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:49:38,300 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:49:38,300 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:49:38,300 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:49:38,300 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:49:38,300 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 16:49:38,301 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:49:38,301 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:49:38,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:49:38,301 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:49:38,301 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:49:38,301 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:49:38,302 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:49:38,302 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:49:38,302 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:49:38,303 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:49:38,303 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:49:38,303 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:49:38,303 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:49:38,303 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:49:38,303 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:49:38,304 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:49:38,304 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:49:38,304 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:49:38,304 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:49:38,304 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:49:38,304 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:49:38,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:49:38,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:49:38,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:49:38,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:49:38,306 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:49:38,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:49:38,307 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:49:38,307 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:49:38,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:49:38,308 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:49:38,308 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:49:38,308 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:49:38,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:49:38,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:49:38,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:49:39,367 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:49:39,368 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:49:39,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:49:39 BoogieIcfgContainer [2020-09-24 16:49:39,375 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:49:39,376 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:49:39,376 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:49:39,380 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:49:39,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:49:37" (1/3) ... [2020-09-24 16:49:39,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1993b460 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:49:39, skipping insertion in model container [2020-09-24 16:49:39,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:38" (2/3) ... [2020-09-24 16:49:39,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1993b460 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:49:39, skipping insertion in model container [2020-09-24 16:49:39,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:49:39" (3/3) ... [2020-09-24 16:49:39,384 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product01.cil.c [2020-09-24 16:49:39,396 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:49:39,407 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:49:39,430 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:49:39,462 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:49:39,462 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:49:39,463 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:49:39,463 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:49:39,463 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:49:39,463 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:49:39,463 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:49:39,463 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:49:39,490 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-09-24 16:49:39,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 16:49:39,508 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:49:39,509 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:49:39,510 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:49:39,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:49:39,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1134805363, now seen corresponding path program 1 times [2020-09-24 16:49:39,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:49:39,529 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1697211288] [2020-09-24 16:49:39,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:49:39,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:40,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:40,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:40,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:44,240 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:44,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 16:49:44,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 16:49:44,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4388 [2020-09-24 16:49:44,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:44,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:49:44,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 16:49:44,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 16:49:44,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:49:44,727 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:49:44,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:49:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:44,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:45,098 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:45,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:49:45,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:45,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 323 [2020-09-24 16:49:45,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:45,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:49:45,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:45,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 16:49:45,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:49:45,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:49:45,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:45,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:45,175 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:45,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:49:45,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:45,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:49:45,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:45,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:49:45,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:45,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:49:45,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:45,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:49:45,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:45,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:45,184 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:45,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:49:45,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:45,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:49:45,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:45,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:49:45,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:45,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:49:45,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:45,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:49:45,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:45,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:45,200 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:45,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:49:45,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:45,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 16:49:45,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:45,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:49:45,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:45,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:49:45,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:45,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:49:45,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:45,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:45,210 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:45,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:49:45,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:45,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:49:45,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:45,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:49:45,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:45,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:49:45,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:45,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 16:49:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:45,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:45,218 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:45,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:49:45,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:45,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:49:45,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:45,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:45,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:49:45,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:45,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:45,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 16:49:45,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:45,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:45,227 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:45,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:49:45,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:45,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:49:45,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:45,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:45,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:49:45,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:45,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:45,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 16:49:45,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:45,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:45,236 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:45,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:49:45,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:45,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:49:45,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:45,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:45,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:49:45,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:45,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:45,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:49:45,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1697211288] [2020-09-24 16:49:45,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:49:45,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 16:49:45,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044153092] [2020-09-24 16:49:45,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 16:49:45,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:49:45,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 16:49:45,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:49:45,305 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 4 states. [2020-09-24 16:49:45,917 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:49:46,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:49:46,706 INFO L93 Difference]: Finished difference Result 365 states and 438 transitions. [2020-09-24 16:49:46,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 16:49:46,708 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2020-09-24 16:49:46,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:49:46,727 INFO L225 Difference]: With dead ends: 365 [2020-09-24 16:49:46,727 INFO L226 Difference]: Without dead ends: 238 [2020-09-24 16:49:46,733 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:49:46,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-09-24 16:49:46,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 201. [2020-09-24 16:49:46,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-09-24 16:49:46,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 214 transitions. [2020-09-24 16:49:46,837 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 214 transitions. Word has length 153 [2020-09-24 16:49:46,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:49:46,838 INFO L479 AbstractCegarLoop]: Abstraction has 201 states and 214 transitions. [2020-09-24 16:49:46,838 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 16:49:46,838 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 214 transitions. [2020-09-24 16:49:46,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-24 16:49:46,847 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:49:46,847 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] [2020-09-24 16:49:46,848 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:49:46,852 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:49:46,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:49:46,852 INFO L82 PathProgramCache]: Analyzing trace with hash -812596280, now seen corresponding path program 1 times [2020-09-24 16:49:46,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:49:46,853 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [627776132] [2020-09-24 16:49:46,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:49:46,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:46,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:47,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:49,984 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:49,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-24 16:49:49,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 16:49:49,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3061 [2020-09-24 16:49:49,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:49,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:49:49,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 16:49:49,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 16:49:49,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:50,266 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:49:50,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:49:50,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:50,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:50,381 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:50,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:49:50,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:50,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 16:49:50,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:50,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:50,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:50,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:50,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:50,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:49:50,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:50,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:50,424 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:50,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:49:50,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:50,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:49:50,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:50,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:50,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:50,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:50,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:50,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:49:50,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:50,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:50,430 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:50,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:49:50,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:50,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:49:50,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:50,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:50,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:50,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:50,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:50,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:49:50,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:50,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:50,440 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:50,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:49:50,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:50,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:49:50,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:50,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:50,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:50,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:50,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:49:50,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:49:50,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:50,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:50,446 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:50,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:49:50,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:50,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:49:50,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:50,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:50,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:50,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:50,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:50,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 16:49:50,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:50,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:50,452 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:50,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:49:50,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:50,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:49:50,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:50,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:50,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 16:49:50,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:50,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:50,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 16:49:50,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:50,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:50,459 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:50,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:49:50,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:50,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:49:50,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:50,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:50,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:49:50,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:50,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:50,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 16:49:50,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:50,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:50,466 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:50,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:49:50,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:50,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:49:50,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:50,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:50,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:49:50,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:50,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:50,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 16:49:50,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:50,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:50,473 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:50,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:49:50,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:50,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:49:50,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:50,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:50,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:49:50,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:50,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:50,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:49:50,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [627776132] [2020-09-24 16:49:50,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:49:50,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 16:49:50,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397170726] [2020-09-24 16:49:50,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 16:49:50,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:49:50,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 16:49:50,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:49:50,552 INFO L87 Difference]: Start difference. First operand 201 states and 214 transitions. Second operand 4 states. [2020-09-24 16:49:51,247 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:49:51,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:49:51,879 INFO L93 Difference]: Finished difference Result 282 states and 310 transitions. [2020-09-24 16:49:51,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 16:49:51,883 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2020-09-24 16:49:51,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:49:51,887 INFO L225 Difference]: With dead ends: 282 [2020-09-24 16:49:51,887 INFO L226 Difference]: Without dead ends: 221 [2020-09-24 16:49:51,889 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:49:51,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-09-24 16:49:51,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 191. [2020-09-24 16:49:51,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-09-24 16:49:51,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 201 transitions. [2020-09-24 16:49:51,927 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 201 transitions. Word has length 157 [2020-09-24 16:49:51,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:49:51,928 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 201 transitions. [2020-09-24 16:49:51,928 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 16:49:51,928 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 201 transitions. [2020-09-24 16:49:51,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-24 16:49:51,931 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:49:51,932 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] [2020-09-24 16:49:51,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:49:51,932 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:49:51,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:49:51,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1213081293, now seen corresponding path program 1 times [2020-09-24 16:49:51,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:49:51,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1050197314] [2020-09-24 16:49:51,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:49:51,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:52,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:53,862 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:53,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-24 16:49:53,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:53,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1877 [2020-09-24 16:49:53,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:53,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 16:49:53,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 16:49:53,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-24 16:49:53,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:49:54,302 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:49:54,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:49:54,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:54,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:54,626 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:54,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:49:54,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:54,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-09-24 16:49:54,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:54,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:49:54,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:54,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 16:49:54,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:49:54,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:49:54,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:54,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:54,725 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:54,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:49:54,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:54,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:49:54,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:54,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:49:54,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:54,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:49:54,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:54,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:49:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:54,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:54,733 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:54,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:49:54,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:54,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:49:54,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:54,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:49:54,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:54,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:49:54,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:54,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:49:54,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:54,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:54,745 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:54,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:49:54,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:54,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:49:54,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:54,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:49:54,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:54,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:49:54,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:54,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:49:54,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:54,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:54,755 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:54,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:49:54,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:54,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:49:54,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:54,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:49:54,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:54,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:49:54,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:49:54,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 16:49:54,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:54,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:54,763 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:54,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:49:54,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:54,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:49:54,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:54,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:49:54,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:54,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:49:54,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:54,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 16:49:54,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:54,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:54,773 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:54,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:49:54,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:54,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:49:54,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:54,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:49:54,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:54,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:49:54,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:54,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 16:49:54,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:54,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:54,788 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:54,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:49:54,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:54,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 16:49:54,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:54,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:49:54,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:54,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:49:54,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:54,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 16:49:54,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:54,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:54,824 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:54,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:49:54,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:54,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:49:54,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:54,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:54,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:49:54,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:54,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:49:54,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:49:54,861 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1050197314] [2020-09-24 16:49:54,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:49:54,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 16:49:54,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128854518] [2020-09-24 16:49:54,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 16:49:54,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:49:54,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 16:49:54,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 16:49:54,865 INFO L87 Difference]: Start difference. First operand 191 states and 201 transitions. Second operand 8 states. [2020-09-24 16:49:55,362 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:49:56,727 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:49:57,037 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:49:57,372 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:49:57,691 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:49:57,985 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:49:58,314 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:49:58,648 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:49:59,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:49:59,063 INFO L93 Difference]: Finished difference Result 374 states and 427 transitions. [2020-09-24 16:49:59,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 16:49:59,065 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 166 [2020-09-24 16:49:59,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:49:59,072 INFO L225 Difference]: With dead ends: 374 [2020-09-24 16:49:59,072 INFO L226 Difference]: Without dead ends: 293 [2020-09-24 16:49:59,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-24 16:49:59,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-09-24 16:49:59,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 265. [2020-09-24 16:49:59,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-09-24 16:49:59,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 288 transitions. [2020-09-24 16:49:59,137 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 288 transitions. Word has length 166 [2020-09-24 16:49:59,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:49:59,138 INFO L479 AbstractCegarLoop]: Abstraction has 265 states and 288 transitions. [2020-09-24 16:49:59,138 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 16:49:59,139 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 288 transitions. [2020-09-24 16:49:59,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 16:49:59,143 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:49:59,143 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] [2020-09-24 16:49:59,143 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:49:59,143 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:49:59,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:49:59,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1613053112, now seen corresponding path program 1 times [2020-09-24 16:49:59,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:49:59,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1186227003] [2020-09-24 16:49:59,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:49:59,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 16:49:59,216 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 16:49:59,217 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 16:49:59,222 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 16:49:59,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 04:49:59 BoogieIcfgContainer [2020-09-24 16:49:59,247 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 16:49:59,249 INFO L168 Benchmark]: Toolchain (without parser) took 21885.35 ms. Allocated memory was 138.4 MB in the beginning and 508.6 MB in the end (delta: 370.1 MB). Free memory was 100.6 MB in the beginning and 314.8 MB in the end (delta: -214.3 MB). Peak memory consumption was 155.9 MB. Max. memory is 7.1 GB. [2020-09-24 16:49:59,250 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 16:49:59,252 INFO L168 Benchmark]: CACSL2BoogieTranslator took 718.38 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 99.9 MB in the beginning and 172.9 MB in the end (delta: -72.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2020-09-24 16:49:59,252 INFO L168 Benchmark]: Boogie Preprocessor took 110.46 ms. Allocated memory is still 201.9 MB. Free memory was 172.9 MB in the beginning and 168.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-24 16:49:59,253 INFO L168 Benchmark]: RCFGBuilder took 1173.19 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 168.6 MB in the beginning and 184.6 MB in the end (delta: -15.9 MB). Peak memory consumption was 88.9 MB. Max. memory is 7.1 GB. [2020-09-24 16:49:59,254 INFO L168 Benchmark]: TraceAbstraction took 19870.99 ms. Allocated memory was 232.8 MB in the beginning and 508.6 MB in the end (delta: 275.8 MB). Free memory was 183.1 MB in the beginning and 314.8 MB in the end (delta: -131.7 MB). Peak memory consumption was 144.1 MB. Max. memory is 7.1 GB. [2020-09-24 16:49:59,258 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 718.38 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 99.9 MB in the beginning and 172.9 MB in the end (delta: -72.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.46 ms. Allocated memory is still 201.9 MB. Free memory was 172.9 MB in the beginning and 168.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1173.19 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 168.6 MB in the beginning and 184.6 MB in the end (delta: -15.9 MB). Peak memory consumption was 88.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19870.99 ms. Allocated memory was 232.8 MB in the beginning and 508.6 MB in the end (delta: 275.8 MB). Free memory was 183.1 MB in the beginning and 314.8 MB in the end (delta: -131.7 MB). Peak memory consumption was 144.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 302]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L48] int pumpRunning = 0; [L49] int systemActive = 1; [L307] int cleanupTimeShifts = 4; [L403] int waterLevel = 1; [L404] int methaneLevelCritical = 0; [L652] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L380] int retValue_acc ; [L381] int tmp ; [L385] FCALL select_helpers() [L386] FCALL select_features() [L387] CALL, EXPR valid_product() [L253] int retValue_acc ; [L256] retValue_acc = 1 [L257] return (retValue_acc); [L387] RET, EXPR valid_product() [L387] tmp = valid_product() [L389] COND TRUE \read(tmp) [L391] FCALL setup() [L392] CALL runTest() [L374] CALL test() [L160] int splverifierCounter ; [L161] int tmp ; [L162] int tmp___0 ; [L163] int tmp___1 ; [L164] int tmp___2 ; [L167] splverifierCounter = 0 [L169] COND TRUE 1 [L171] COND TRUE splverifierCounter < 4 [L177] tmp = __VERIFIER_nondet_int() [L179] COND TRUE \read(tmp) [L181] CALL waterRise() [L421] COND TRUE waterLevel < 2 [L422] waterLevel = waterLevel + 1 [L181] RET waterRise() [L187] tmp___0 = __VERIFIER_nondet_int() [L189] COND FALSE !(\read(tmp___0)) [L197] tmp___2 = __VERIFIER_nondet_int() [L199] COND TRUE \read(tmp___2) [L212] CALL timeShift() [L56] COND FALSE !(\read(pumpRunning)) [L63] COND TRUE \read(systemActive) [L65] FCALL processEnvironment() [L71] CALL __utac_acc__Specification3_spec__1() [L265] int tmp ; [L266] int tmp___0 ; [L267] int tmp___1 ; [L271] CALL, EXPR isMethaneLevelCritical() [L442] int retValue_acc ; [L445] retValue_acc = methaneLevelCritical [L446] return (retValue_acc); [L271] RET, EXPR isMethaneLevelCritical() [L271] tmp = isMethaneLevelCritical() [L273] COND FALSE !(\read(tmp)) [L277] CALL, EXPR getWaterLevel() [L474] int retValue_acc ; [L477] retValue_acc = waterLevel [L478] return (retValue_acc); [L277] RET, EXPR getWaterLevel() [L277] tmp___0 = getWaterLevel() [L279] COND TRUE tmp___0 == 2 [L281] CALL, EXPR isPumpRunning() [L111] int retValue_acc ; [L114] retValue_acc = pumpRunning [L115] return (retValue_acc); [L281] RET, EXPR isPumpRunning() [L281] tmp___1 = isPumpRunning() [L283] COND FALSE !(\read(tmp___1)) [L287] CALL __automaton_fail() [L302] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 34 procedures, 578 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 6.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 556 SDtfs, 564 SDslu, 677 SDs, 0 SdLazy, 1140 SolverSat, 165 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=265occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 95 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 11.8s InterpolantComputationTime, 647 NumberOfCodeBlocks, 647 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 473 ConstructedInterpolants, 0 QuantifiedInterpolants, 190716 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...