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 -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:50,840 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:50,842 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:50,853 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:50,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:50,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:50,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:50,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:50,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:50,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:50,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:50,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:50,863 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:50,864 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:50,865 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:50,866 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:50,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:50,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:50,869 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:50,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:50,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:50,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:50,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:50,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:50,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:50,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:50,878 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:50,879 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:50,879 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:50,880 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:50,880 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:50,881 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:50,882 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:50,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:50,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:50,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:50,885 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:50,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:50,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:50,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:50,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:50,887 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:29:50,902 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:50,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:50,902 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:50,903 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:50,903 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:50,903 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:50,904 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:50,904 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:50,904 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:50,904 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:50,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:50,905 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:50,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:50,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:50,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:50,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:50,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:50,906 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:50,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:50,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:50,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:50,907 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:50,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:50,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:50,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:50,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:50,908 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:50,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:50,908 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:50,909 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:50,936 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:50,949 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:50,952 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:50,953 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:50,954 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:50,954 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product03.cil.c [2019-09-20 13:29:51,013 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8d448b4d/b70cef7c070e4e66a8f065042371f36b/FLAGb49e8be9b [2019-09-20 13:29:51,527 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:51,528 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product03.cil.c [2019-09-20 13:29:51,543 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8d448b4d/b70cef7c070e4e66a8f065042371f36b/FLAGb49e8be9b [2019-09-20 13:29:51,823 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8d448b4d/b70cef7c070e4e66a8f065042371f36b [2019-09-20 13:29:51,831 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:51,833 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:51,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:51,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:51,837 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:51,838 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:51" (1/1) ... [2019-09-20 13:29:51,841 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@337b8df9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:51, skipping insertion in model container [2019-09-20 13:29:51,841 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:51" (1/1) ... [2019-09-20 13:29:51,848 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:51,905 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:52,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:52,323 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:52,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:52,465 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:52,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:52 WrapperNode [2019-09-20 13:29:52,466 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:52,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:52,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:52,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:52,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:52" (1/1) ... [2019-09-20 13:29:52,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:52" (1/1) ... [2019-09-20 13:29:52,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:52" (1/1) ... [2019-09-20 13:29:52,499 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:52" (1/1) ... [2019-09-20 13:29:52,526 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:52" (1/1) ... [2019-09-20 13:29:52,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:52" (1/1) ... [2019-09-20 13:29:52,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:52" (1/1) ... [2019-09-20 13:29:52,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:29:52,550 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:29:52,550 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:29:52,550 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:29:52,551 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2019-09-20 13:29:52,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:29:52,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:29:52,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:52,630 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:29:52,630 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:29:52,630 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:29:52,630 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:29:52,630 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:29:52,631 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:29:52,631 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:29:52,631 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-20 13:29:52,631 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:29:52,631 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:29:52,632 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:29:52,633 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:29:52,633 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:29:52,633 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:29:52,634 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:29:52,634 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:29:52,634 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:29:52,635 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:29:52,635 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:29:52,635 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:29:52,635 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:29:52,635 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:29:52,636 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:29:52,636 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:29:52,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:52,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:52,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:52,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:29:52,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:29:52,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:29:52,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:29:52,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:29:52,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:29:52,638 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:29:52,638 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:29:52,638 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:29:52,638 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:29:52,638 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:29:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:29:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:29:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:29:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:29:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:29:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:29:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-20 13:29:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:29:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:29:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:29:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:29:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:29:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:29:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:29:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:29:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:29:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:29:52,642 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:29:52,642 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:29:52,642 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:29:52,642 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:29:52,642 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:29:52,642 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:29:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:29:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:29:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:29:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:29:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:29:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:29:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:29:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:29:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:29:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:29:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:29:52,646 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:29:52,646 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:29:52,646 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:29:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:29:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:29:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:29:52,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:29:53,641 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:29:53,642 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:29:53,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:53 BoogieIcfgContainer [2019-09-20 13:29:53,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:29:53,645 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:29:53,645 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:29:53,648 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:29:53,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:51" (1/3) ... [2019-09-20 13:29:53,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13e54972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:53, skipping insertion in model container [2019-09-20 13:29:53,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:52" (2/3) ... [2019-09-20 13:29:53,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13e54972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:53, skipping insertion in model container [2019-09-20 13:29:53,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:53" (3/3) ... [2019-09-20 13:29:53,653 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product03.cil.c [2019-09-20 13:29:53,663 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:29:53,696 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:29:53,712 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:29:53,738 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:29:53,739 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:29:53,739 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:29:53,739 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:29:53,740 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:29:53,740 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:29:53,740 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:29:53,740 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:29:53,759 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states. [2019-09-20 13:29:53,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:29:53,771 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:53,772 INFO L407 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] [2019-09-20 13:29:53,774 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:53,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:53,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1808633818, now seen corresponding path program 1 times [2019-09-20 13:29:53,782 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:53,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:53,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:53,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:53,838 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:54,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:54,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:54,195 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:54,195 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:29:54,196 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:54,201 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:54,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:54,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:54,214 INFO L87 Difference]: Start difference. First operand 141 states. Second operand 2 states. [2019-09-20 13:29:54,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:54,248 INFO L93 Difference]: Finished difference Result 106 states and 122 transitions. [2019-09-20 13:29:54,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:54,250 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-20 13:29:54,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:54,265 INFO L225 Difference]: With dead ends: 106 [2019-09-20 13:29:54,265 INFO L226 Difference]: Without dead ends: 95 [2019-09-20 13:29:54,269 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:54,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-09-20 13:29:54,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2019-09-20 13:29:54,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-09-20 13:29:54,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 110 transitions. [2019-09-20 13:29:54,353 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 110 transitions. Word has length 51 [2019-09-20 13:29:54,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:54,354 INFO L475 AbstractCegarLoop]: Abstraction has 95 states and 110 transitions. [2019-09-20 13:29:54,354 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:54,354 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 110 transitions. [2019-09-20 13:29:54,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:29:54,361 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:54,361 INFO L407 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] [2019-09-20 13:29:54,361 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:54,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:54,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1285910176, now seen corresponding path program 1 times [2019-09-20 13:29:54,363 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:54,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:54,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:54,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:54,367 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:54,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:54,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:54,540 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:54,540 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:54,541 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:54,543 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:54,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:54,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:54,544 INFO L87 Difference]: Start difference. First operand 95 states and 110 transitions. Second operand 3 states. [2019-09-20 13:29:54,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:54,566 INFO L93 Difference]: Finished difference Result 86 states and 98 transitions. [2019-09-20 13:29:54,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:54,568 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-20 13:29:54,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:54,570 INFO L225 Difference]: With dead ends: 86 [2019-09-20 13:29:54,571 INFO L226 Difference]: Without dead ends: 86 [2019-09-20 13:29:54,572 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:54,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2019-09-20 13:29:54,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2019-09-20 13:29:54,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-09-20 13:29:54,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 98 transitions. [2019-09-20 13:29:54,592 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 98 transitions. Word has length 52 [2019-09-20 13:29:54,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:54,592 INFO L475 AbstractCegarLoop]: Abstraction has 86 states and 98 transitions. [2019-09-20 13:29:54,593 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:54,593 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 98 transitions. [2019-09-20 13:29:54,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-20 13:29:54,598 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:54,598 INFO L407 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] [2019-09-20 13:29:54,599 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:54,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:54,600 INFO L82 PathProgramCache]: Analyzing trace with hash -2002808083, now seen corresponding path program 1 times [2019-09-20 13:29:54,600 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:54,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:54,602 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:54,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:54,603 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:54,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:54,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:54,770 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:54,770 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:29:54,771 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:54,771 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:29:54,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:29:54,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:54,772 INFO L87 Difference]: Start difference. First operand 86 states and 98 transitions. Second operand 7 states. [2019-09-20 13:29:55,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:55,180 INFO L93 Difference]: Finished difference Result 195 states and 232 transitions. [2019-09-20 13:29:55,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:29:55,181 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-09-20 13:29:55,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:55,187 INFO L225 Difference]: With dead ends: 195 [2019-09-20 13:29:55,188 INFO L226 Difference]: Without dead ends: 195 [2019-09-20 13:29:55,188 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:29:55,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2019-09-20 13:29:55,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 175. [2019-09-20 13:29:55,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2019-09-20 13:29:55,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 210 transitions. [2019-09-20 13:29:55,231 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 210 transitions. Word has length 56 [2019-09-20 13:29:55,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:55,232 INFO L475 AbstractCegarLoop]: Abstraction has 175 states and 210 transitions. [2019-09-20 13:29:55,232 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:29:55,232 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 210 transitions. [2019-09-20 13:29:55,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-20 13:29:55,237 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:55,237 INFO L407 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] [2019-09-20 13:29:55,238 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:55,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:55,241 INFO L82 PathProgramCache]: Analyzing trace with hash 452268529, now seen corresponding path program 1 times [2019-09-20 13:29:55,241 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:55,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:55,244 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:55,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:55,245 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:55,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:55,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:55,389 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:55,389 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:55,389 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:55,391 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:55,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:55,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:55,392 INFO L87 Difference]: Start difference. First operand 175 states and 210 transitions. Second operand 6 states. [2019-09-20 13:29:55,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:55,580 INFO L93 Difference]: Finished difference Result 304 states and 366 transitions. [2019-09-20 13:29:55,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:55,581 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2019-09-20 13:29:55,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:55,584 INFO L225 Difference]: With dead ends: 304 [2019-09-20 13:29:55,585 INFO L226 Difference]: Without dead ends: 304 [2019-09-20 13:29:55,585 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:29:55,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2019-09-20 13:29:55,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 298. [2019-09-20 13:29:55,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2019-09-20 13:29:55,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 360 transitions. [2019-09-20 13:29:55,612 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 360 transitions. Word has length 59 [2019-09-20 13:29:55,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:55,612 INFO L475 AbstractCegarLoop]: Abstraction has 298 states and 360 transitions. [2019-09-20 13:29:55,612 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:55,612 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 360 transitions. [2019-09-20 13:29:55,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-09-20 13:29:55,614 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:55,614 INFO L407 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] [2019-09-20 13:29:55,615 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:55,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:55,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1021481045, now seen corresponding path program 1 times [2019-09-20 13:29:55,615 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:55,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:55,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:55,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:55,618 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:55,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:55,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:55,719 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:55,719 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:55,719 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:55,720 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:55,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:55,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:55,721 INFO L87 Difference]: Start difference. First operand 298 states and 360 transitions. Second operand 6 states. [2019-09-20 13:29:55,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:55,884 INFO L93 Difference]: Finished difference Result 266 states and 309 transitions. [2019-09-20 13:29:55,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:29:55,885 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2019-09-20 13:29:55,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:55,886 INFO L225 Difference]: With dead ends: 266 [2019-09-20 13:29:55,886 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:29:55,887 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:29:55,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:29:55,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:29:55,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:29:55,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:29:55,889 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 63 [2019-09-20 13:29:55,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:55,890 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:29:55,890 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:55,890 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:29:55,890 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:29:55,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:29:55 BoogieIcfgContainer [2019-09-20 13:29:55,895 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:29:55,899 INFO L168 Benchmark]: Toolchain (without parser) took 4064.71 ms. Allocated memory was 132.6 MB in the beginning and 261.6 MB in the end (delta: 129.0 MB). Free memory was 87.7 MB in the beginning and 168.5 MB in the end (delta: -80.9 MB). Peak memory consumption was 48.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:55,900 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 132.6 MB. Free memory was 106.9 MB in the beginning and 106.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:29:55,901 INFO L168 Benchmark]: CACSL2BoogieTranslator took 632.53 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 87.4 MB in the beginning and 165.2 MB in the end (delta: -77.7 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:55,903 INFO L168 Benchmark]: Boogie Preprocessor took 82.85 ms. Allocated memory is still 199.8 MB. Free memory was 165.2 MB in the beginning and 161.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:55,904 INFO L168 Benchmark]: RCFGBuilder took 1093.84 ms. Allocated memory is still 199.8 MB. Free memory was 161.3 MB in the beginning and 79.8 MB in the end (delta: 81.4 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:55,906 INFO L168 Benchmark]: TraceAbstraction took 2250.77 ms. Allocated memory was 199.8 MB in the beginning and 261.6 MB in the end (delta: 61.9 MB). Free memory was 79.2 MB in the beginning and 168.5 MB in the end (delta: -89.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:29:55,914 INFO L335 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 132.6 MB. Free memory was 106.9 MB in the beginning and 106.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 632.53 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 87.4 MB in the beginning and 165.2 MB in the end (delta: -77.7 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 82.85 ms. Allocated memory is still 199.8 MB. Free memory was 165.2 MB in the beginning and 161.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1093.84 ms. Allocated memory is still 199.8 MB. Free memory was 161.3 MB in the beginning and 79.8 MB in the end (delta: 81.4 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2250.77 ms. Allocated memory was 199.8 MB in the beginning and 261.6 MB in the end (delta: 61.9 MB). Free memory was 79.2 MB in the beginning and 168.5 MB in the end (delta: -89.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 869]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 205 locations, 1 error locations. SAFE Result, 2.1s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 516 SDtfs, 299 SDslu, 981 SDs, 0 SdLazy, 236 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 26 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 281 NumberOfCodeBlocks, 281 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 276 ConstructedInterpolants, 0 QuantifiedInterpolants, 27804 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...