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_spec4_product02.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:49:50,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:49:51,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:49:51,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:49:51,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:49:51,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:49:51,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:49:51,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:49:51,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:49:51,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:49:51,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:49:51,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:49:51,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:49:51,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:49:51,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:49:51,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:49:51,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:49:51,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:49:51,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:49:51,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:49:51,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:49:51,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:49:51,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:49:51,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:49:51,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:49:51,040 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:49:51,040 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:49:51,041 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:49:51,041 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:49:51,042 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:49:51,042 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:49:51,043 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:49:51,044 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:49:51,045 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:49:51,046 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:49:51,046 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:49:51,047 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:49:51,047 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:49:51,047 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:49:51,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:49:51,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:49:51,050 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 [2019-09-10 02:49:51,075 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:49:51,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:49:51,076 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:49:51,076 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:49:51,077 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:49:51,077 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:49:51,077 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:49:51,078 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:49:51,078 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:49:51,078 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:49:51,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:49:51,079 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:49:51,079 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:49:51,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:49:51,080 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:49:51,080 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:49:51,080 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:49:51,080 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:49:51,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:49:51,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:49:51,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:49:51,081 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:49:51,081 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:49:51,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:49:51,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:49:51,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:49:51,082 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:49:51,083 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:49:51,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:49:51,083 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:49:51,112 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:49:51,130 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:49:51,136 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:49:51,137 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:49:51,140 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:49:51,141 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product02.cil.c [2019-09-10 02:49:51,234 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18e45524c/ccf661bc852347318a224b1dce9df6a9/FLAG673b0d844 [2019-09-10 02:49:51,782 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:49:51,783 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product02.cil.c [2019-09-10 02:49:51,814 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18e45524c/ccf661bc852347318a224b1dce9df6a9/FLAG673b0d844 [2019-09-10 02:49:52,033 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18e45524c/ccf661bc852347318a224b1dce9df6a9 [2019-09-10 02:49:52,042 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:49:52,043 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:49:52,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:49:52,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:49:52,050 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:49:52,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:49:52" (1/1) ... [2019-09-10 02:49:52,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@380bf43b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:52, skipping insertion in model container [2019-09-10 02:49:52,055 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:49:52" (1/1) ... [2019-09-10 02:49:52,063 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:49:52,135 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:49:52,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:49:52,615 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:49:52,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:49:52,736 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:49:52,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:52 WrapperNode [2019-09-10 02:49:52,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:49:52,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:49:52,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:49:52,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:49:52,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:52" (1/1) ... [2019-09-10 02:49:52,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:52" (1/1) ... [2019-09-10 02:49:52,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:52" (1/1) ... [2019-09-10 02:49:52,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:52" (1/1) ... [2019-09-10 02:49:52,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:52" (1/1) ... [2019-09-10 02:49:52,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:52" (1/1) ... [2019-09-10 02:49:52,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:52" (1/1) ... [2019-09-10 02:49:52,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:49:52,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:49:52,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:49:52,848 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:49:52,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:52" (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 [2019-09-10 02:49:52,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:49:52,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:49:52,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:49:52,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:49:52,905 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:49:52,905 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:49:52,905 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:49:52,905 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:49:52,905 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:49:52,905 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:49:52,905 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:49:52,906 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:49:52,906 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:49:52,906 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:49:52,906 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:49:52,906 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-10 02:49:52,907 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:49:52,907 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:49:52,907 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:49:52,907 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:49:52,907 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:49:52,907 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:49:52,907 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:49:52,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-10 02:49:52,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:49:52,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:49:52,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:49:52,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:49:52,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:49:52,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:49:52,909 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:49:52,909 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:49:52,909 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:49:52,909 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:49:52,909 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:49:52,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:49:52,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:49:52,910 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:49:52,910 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:49:52,910 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:49:52,910 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:49:52,911 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:49:52,911 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:49:52,911 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:49:52,911 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:49:52,911 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:49:52,911 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:49:52,911 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:49:52,912 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:49:52,912 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:49:52,912 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:49:52,912 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-10 02:49:52,912 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-10 02:49:52,912 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:49:52,913 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:49:52,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:49:52,913 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:49:52,913 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:49:52,913 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:49:52,913 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:49:52,913 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:49:52,914 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:49:52,914 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:49:52,914 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:49:52,914 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:49:52,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:49:52,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:49:52,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:49:52,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:49:52,915 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:49:52,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:49:52,915 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:49:52,915 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:49:52,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:49:52,916 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:49:52,916 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:49:52,916 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:49:52,916 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:49:52,916 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:49:52,917 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:49:52,917 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:49:52,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:49:52,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:49:52,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:49:53,906 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:49:53,907 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:49:53,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:49:53 BoogieIcfgContainer [2019-09-10 02:49:53,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:49:53,910 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:49:53,910 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:49:53,913 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:49:53,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:49:52" (1/3) ... [2019-09-10 02:49:53,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3e6b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:49:53, skipping insertion in model container [2019-09-10 02:49:53,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:52" (2/3) ... [2019-09-10 02:49:53,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3e6b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:49:53, skipping insertion in model container [2019-09-10 02:49:53,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:49:53" (3/3) ... [2019-09-10 02:49:53,917 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product02.cil.c [2019-09-10 02:49:53,927 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:49:53,936 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:49:53,954 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:49:54,001 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:49:54,002 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:49:54,002 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:49:54,002 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:49:54,002 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:49:54,003 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:49:54,003 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:49:54,003 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:49:54,023 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states. [2019-09-10 02:49:54,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-10 02:49:54,036 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:54,037 INFO L399 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] [2019-09-10 02:49:54,039 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:54,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:54,046 INFO L82 PathProgramCache]: Analyzing trace with hash 985009112, now seen corresponding path program 1 times [2019-09-10 02:49:54,048 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:54,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:54,103 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:54,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:54,103 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:54,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:54,421 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:54,422 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:49:54,422 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:54,428 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:49:54,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:49:54,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:49:54,444 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 2 states. [2019-09-10 02:49:54,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:54,466 INFO L93 Difference]: Finished difference Result 96 states and 110 transitions. [2019-09-10 02:49:54,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:49:54,467 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-10 02:49:54,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:54,476 INFO L225 Difference]: With dead ends: 96 [2019-09-10 02:49:54,477 INFO L226 Difference]: Without dead ends: 85 [2019-09-10 02:49:54,479 INFO L628 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 [2019-09-10 02:49:54,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-09-10 02:49:54,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2019-09-10 02:49:54,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-09-10 02:49:54,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 98 transitions. [2019-09-10 02:49:54,529 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 98 transitions. Word has length 46 [2019-09-10 02:49:54,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:54,530 INFO L475 AbstractCegarLoop]: Abstraction has 85 states and 98 transitions. [2019-09-10 02:49:54,530 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:49:54,531 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 98 transitions. [2019-09-10 02:49:54,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-10 02:49:54,534 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:54,534 INFO L399 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] [2019-09-10 02:49:54,534 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:54,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:54,535 INFO L82 PathProgramCache]: Analyzing trace with hash -2101459879, now seen corresponding path program 1 times [2019-09-10 02:49:54,535 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:54,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:54,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:54,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:54,536 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:54,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:54,638 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:54,638 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:49:54,638 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:54,640 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:49:54,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:49:54,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:49:54,641 INFO L87 Difference]: Start difference. First operand 85 states and 98 transitions. Second operand 3 states. [2019-09-10 02:49:54,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:54,653 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2019-09-10 02:49:54,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:49:54,654 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-10 02:49:54,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:54,656 INFO L225 Difference]: With dead ends: 76 [2019-09-10 02:49:54,656 INFO L226 Difference]: Without dead ends: 76 [2019-09-10 02:49:54,657 INFO L628 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 [2019-09-10 02:49:54,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-09-10 02:49:54,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2019-09-10 02:49:54,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-09-10 02:49:54,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 86 transitions. [2019-09-10 02:49:54,667 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 86 transitions. Word has length 47 [2019-09-10 02:49:54,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:54,668 INFO L475 AbstractCegarLoop]: Abstraction has 76 states and 86 transitions. [2019-09-10 02:49:54,668 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:49:54,668 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 86 transitions. [2019-09-10 02:49:54,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-10 02:49:54,670 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:54,670 INFO L399 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] [2019-09-10 02:49:54,670 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:54,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:54,671 INFO L82 PathProgramCache]: Analyzing trace with hash -727692587, now seen corresponding path program 1 times [2019-09-10 02:49:54,671 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:54,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:54,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:54,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:54,672 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:54,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:54,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:54,804 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:54,805 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:49:54,805 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:54,805 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:49:54,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:49:54,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:49:54,806 INFO L87 Difference]: Start difference. First operand 76 states and 86 transitions. Second operand 7 states. [2019-09-10 02:49:55,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:55,102 INFO L93 Difference]: Finished difference Result 76 states and 85 transitions. [2019-09-10 02:49:55,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:49:55,102 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-10 02:49:55,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:55,104 INFO L225 Difference]: With dead ends: 76 [2019-09-10 02:49:55,104 INFO L226 Difference]: Without dead ends: 76 [2019-09-10 02:49:55,105 INFO L628 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 [2019-09-10 02:49:55,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-09-10 02:49:55,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2019-09-10 02:49:55,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-09-10 02:49:55,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2019-09-10 02:49:55,112 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 52 [2019-09-10 02:49:55,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:55,113 INFO L475 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2019-09-10 02:49:55,113 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:49:55,113 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2019-09-10 02:49:55,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-09-10 02:49:55,115 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:55,115 INFO L399 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] [2019-09-10 02:49:55,115 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:55,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:55,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1037705015, now seen corresponding path program 1 times [2019-09-10 02:49:55,116 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:55,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:55,117 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:55,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:55,117 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:55,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:55,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:55,264 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:55,265 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 02:49:55,265 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:55,265 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 02:49:55,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 02:49:55,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:49:55,266 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand 10 states. [2019-09-10 02:49:55,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:55,840 INFO L93 Difference]: Finished difference Result 160 states and 190 transitions. [2019-09-10 02:49:55,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-10 02:49:55,842 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 55 [2019-09-10 02:49:55,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:55,852 INFO L225 Difference]: With dead ends: 160 [2019-09-10 02:49:55,852 INFO L226 Difference]: Without dead ends: 160 [2019-09-10 02:49:55,856 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-09-10 02:49:55,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2019-09-10 02:49:55,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 156. [2019-09-10 02:49:55,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-09-10 02:49:55,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 183 transitions. [2019-09-10 02:49:55,888 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 183 transitions. Word has length 55 [2019-09-10 02:49:55,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:55,888 INFO L475 AbstractCegarLoop]: Abstraction has 156 states and 183 transitions. [2019-09-10 02:49:55,888 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 02:49:55,889 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 183 transitions. [2019-09-10 02:49:55,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-10 02:49:55,890 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:55,891 INFO L399 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] [2019-09-10 02:49:55,891 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:55,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:55,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1822718639, now seen corresponding path program 1 times [2019-09-10 02:49:55,892 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:55,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:55,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:55,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:55,893 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:55,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:55,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:55,961 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:55,961 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:49:55,961 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:55,962 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:49:55,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:49:55,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:49:55,968 INFO L87 Difference]: Start difference. First operand 156 states and 183 transitions. Second operand 3 states. [2019-09-10 02:49:55,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:55,978 INFO L93 Difference]: Finished difference Result 146 states and 164 transitions. [2019-09-10 02:49:55,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:49:55,978 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2019-09-10 02:49:55,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:55,980 INFO L225 Difference]: With dead ends: 146 [2019-09-10 02:49:55,981 INFO L226 Difference]: Without dead ends: 146 [2019-09-10 02:49:55,981 INFO L628 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 [2019-09-10 02:49:55,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-09-10 02:49:56,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2019-09-10 02:49:56,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-09-10 02:49:56,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 164 transitions. [2019-09-10 02:49:56,003 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 164 transitions. Word has length 59 [2019-09-10 02:49:56,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:56,004 INFO L475 AbstractCegarLoop]: Abstraction has 146 states and 164 transitions. [2019-09-10 02:49:56,004 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:49:56,004 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 164 transitions. [2019-09-10 02:49:56,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-09-10 02:49:56,007 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:56,008 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:56,010 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:56,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:56,011 INFO L82 PathProgramCache]: Analyzing trace with hash 337274058, now seen corresponding path program 1 times [2019-09-10 02:49:56,011 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:56,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:56,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:56,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:56,012 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:56,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:56,134 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-09-10 02:49:56,135 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:56,135 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:49:56,135 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:56,136 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:49:56,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:49:56,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:49:56,136 INFO L87 Difference]: Start difference. First operand 146 states and 164 transitions. Second operand 6 states. [2019-09-10 02:49:56,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:56,272 INFO L93 Difference]: Finished difference Result 145 states and 163 transitions. [2019-09-10 02:49:56,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:49:56,272 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 90 [2019-09-10 02:49:56,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:56,273 INFO L225 Difference]: With dead ends: 145 [2019-09-10 02:49:56,273 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:49:56,274 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-10 02:49:56,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:49:56,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:49:56,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:49:56,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:49:56,275 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 90 [2019-09-10 02:49:56,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:56,275 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:49:56,275 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:49:56,278 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:49:56,278 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:49:56,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:49:56 BoogieIcfgContainer [2019-09-10 02:49:56,286 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:49:56,289 INFO L168 Benchmark]: Toolchain (without parser) took 4244.57 ms. Allocated memory was 133.7 MB in the beginning and 261.6 MB in the end (delta: 127.9 MB). Free memory was 88.5 MB in the beginning and 141.1 MB in the end (delta: -52.5 MB). Peak memory consumption was 75.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:56,290 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 133.7 MB. Free memory was 108.2 MB in the beginning and 108.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:49:56,292 INFO L168 Benchmark]: CACSL2BoogieTranslator took 693.39 ms. Allocated memory was 133.7 MB in the beginning and 199.8 MB in the end (delta: 66.1 MB). Free memory was 88.3 MB in the beginning and 166.0 MB in the end (delta: -77.6 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:56,293 INFO L168 Benchmark]: Boogie Preprocessor took 109.56 ms. Allocated memory is still 199.8 MB. Free memory was 166.0 MB in the beginning and 162.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:56,295 INFO L168 Benchmark]: RCFGBuilder took 1061.02 ms. Allocated memory is still 199.8 MB. Free memory was 162.2 MB in the beginning and 83.4 MB in the end (delta: 78.9 MB). Peak memory consumption was 78.9 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:56,296 INFO L168 Benchmark]: TraceAbstraction took 2376.38 ms. Allocated memory was 199.8 MB in the beginning and 261.6 MB in the end (delta: 61.9 MB). Free memory was 82.8 MB in the beginning and 141.1 MB in the end (delta: -58.3 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:56,304 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 133.7 MB. Free memory was 108.2 MB in the beginning and 108.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 693.39 ms. Allocated memory was 133.7 MB in the beginning and 199.8 MB in the end (delta: 66.1 MB). Free memory was 88.3 MB in the beginning and 166.0 MB in the end (delta: -77.6 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.56 ms. Allocated memory is still 199.8 MB. Free memory was 166.0 MB in the beginning and 162.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1061.02 ms. Allocated memory is still 199.8 MB. Free memory was 162.2 MB in the beginning and 83.4 MB in the end (delta: 78.9 MB). Peak memory consumption was 78.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2376.38 ms. Allocated memory was 199.8 MB in the beginning and 261.6 MB in the end (delta: 61.9 MB). Free memory was 82.8 MB in the beginning and 141.1 MB in the end (delta: -58.3 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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 35 procedures, 198 locations, 1 error locations. SAFE Result, 2.3s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 521 SDtfs, 296 SDslu, 969 SDs, 0 SdLazy, 332 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=156occurred 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, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 349 NumberOfCodeBlocks, 349 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 343 ConstructedInterpolants, 0 QuantifiedInterpolants, 40993 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 27/27 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...