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_product07.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:52,787 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:52,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:52,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:52,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:52,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:52,804 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:52,816 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:52,818 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:52,819 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:52,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:52,822 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:52,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:52,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:52,825 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:52,826 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:52,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:52,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:52,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:52,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:52,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:52,834 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:52,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:52,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:52,839 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:52,840 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:52,840 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:52,842 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:52,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:52,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:52,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:52,846 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:52,847 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:52,848 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:52,849 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:52,849 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:52,850 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:52,850 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:52,850 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:52,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:52,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:52,852 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 13:29:52,867 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:52,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:52,868 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:52,868 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:52,869 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:52,869 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:52,869 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:52,870 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:52,870 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:52,870 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:52,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:52,872 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:52,872 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:52,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:52,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:52,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:52,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:52,874 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:52,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:52,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:52,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:52,875 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:52,875 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:52,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:52,876 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:52,876 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:52,876 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:52,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:52,877 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:52,877 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:52,913 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:52,932 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:52,935 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:52,937 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:52,938 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:52,939 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product07.cil.c [2019-09-20 13:29:53,013 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cdd7b647/fdc1abfa2f0c4418a774cce3be920753/FLAG2a7978622 [2019-09-20 13:29:53,572 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:53,573 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product07.cil.c [2019-09-20 13:29:53,588 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cdd7b647/fdc1abfa2f0c4418a774cce3be920753/FLAG2a7978622 [2019-09-20 13:29:53,855 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cdd7b647/fdc1abfa2f0c4418a774cce3be920753 [2019-09-20 13:29:53,864 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:53,866 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:53,867 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:53,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:53,871 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:53,872 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:53" (1/1) ... [2019-09-20 13:29:53,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a6da0b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:53, skipping insertion in model container [2019-09-20 13:29:53,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:53" (1/1) ... [2019-09-20 13:29:53,884 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:53,941 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:54,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:54,352 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:54,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:54,557 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:54,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:54 WrapperNode [2019-09-20 13:29:54,558 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:54,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:54,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:54,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:54,574 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:54" (1/1) ... [2019-09-20 13:29:54,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:54" (1/1) ... [2019-09-20 13:29:54,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:54" (1/1) ... [2019-09-20 13:29:54,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:54" (1/1) ... [2019-09-20 13:29:54,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:54" (1/1) ... [2019-09-20 13:29:54,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:54" (1/1) ... [2019-09-20 13:29:54,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:54" (1/1) ... [2019-09-20 13:29:54,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:29:54,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:29:54,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:29:54,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:29:54,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:54" (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 13:29:54,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:29:54,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:29:54,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:54,725 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:29:54,725 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:29:54,725 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:29:54,725 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:29:54,725 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:29:54,726 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:29:54,726 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:29:54,726 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:29:54,726 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:29:54,726 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:29:54,726 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:29:54,727 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:29:54,727 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:29:54,727 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:29:54,727 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-20 13:29:54,727 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:29:54,727 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:29:54,728 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:29:54,728 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:29:54,728 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:29:54,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:29:54,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:54,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:54,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:54,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:29:54,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:29:54,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:29:54,729 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:29:54,729 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:29:54,729 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:29:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:29:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:29:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:29:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:29:54,730 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:29:54,730 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:29:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:29:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:29:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:29:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:29:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:29:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:29:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:29:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:29:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:29:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:29:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:29:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:29:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:29:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-20 13:29:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:29:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:29:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:29:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:29:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:29:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:29:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:29:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:29:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:29:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:29:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:29:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:29:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:29:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:29:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:29:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:29:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:29:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:29:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:29:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:29:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:29:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:29:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:29:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:29:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:29:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:29:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:29:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:29:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:29:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:29:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:29:55,774 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:29:55,774 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:29:55,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:55 BoogieIcfgContainer [2019-09-20 13:29:55,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:29:55,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:29:55,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:29:55,782 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:29:55,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:53" (1/3) ... [2019-09-20 13:29:55,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e9a863c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:55, skipping insertion in model container [2019-09-20 13:29:55,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:54" (2/3) ... [2019-09-20 13:29:55,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e9a863c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:55, skipping insertion in model container [2019-09-20 13:29:55,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:55" (3/3) ... [2019-09-20 13:29:55,787 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product07.cil.c [2019-09-20 13:29:55,797 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:29:55,807 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:29:55,824 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:29:55,849 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:29:55,849 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:29:55,849 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:29:55,849 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:29:55,850 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:29:55,850 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:29:55,850 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:29:55,850 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:29:55,870 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states. [2019-09-20 13:29:55,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:29:55,883 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:55,884 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 13:29:55,887 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:55,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:55,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1126769430, now seen corresponding path program 1 times [2019-09-20 13:29:55,895 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:55,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:55,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:55,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:55,948 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:56,269 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 13:29:56,271 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:56,272 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:29:56,272 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:56,277 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:56,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:56,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:56,294 INFO L87 Difference]: Start difference. First operand 153 states. Second operand 2 states. [2019-09-20 13:29:56,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:56,324 INFO L93 Difference]: Finished difference Result 121 states and 142 transitions. [2019-09-20 13:29:56,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:56,325 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-20 13:29:56,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:56,338 INFO L225 Difference]: With dead ends: 121 [2019-09-20 13:29:56,338 INFO L226 Difference]: Without dead ends: 110 [2019-09-20 13:29:56,340 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 13:29:56,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-09-20 13:29:56,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-09-20 13:29:56,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-09-20 13:29:56,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 130 transitions. [2019-09-20 13:29:56,392 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 130 transitions. Word has length 51 [2019-09-20 13:29:56,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:56,392 INFO L475 AbstractCegarLoop]: Abstraction has 110 states and 130 transitions. [2019-09-20 13:29:56,392 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:56,393 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 130 transitions. [2019-09-20 13:29:56,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:29:56,396 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:56,397 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 13:29:56,397 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:56,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:56,397 INFO L82 PathProgramCache]: Analyzing trace with hash 305293600, now seen corresponding path program 1 times [2019-09-20 13:29:56,398 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:56,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:56,400 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:56,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:56,401 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:56,503 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 13:29:56,503 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:56,503 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:56,504 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:56,505 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:56,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:56,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:56,506 INFO L87 Difference]: Start difference. First operand 110 states and 130 transitions. Second operand 3 states. [2019-09-20 13:29:56,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:56,541 INFO L93 Difference]: Finished difference Result 101 states and 118 transitions. [2019-09-20 13:29:56,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:56,542 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-20 13:29:56,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:56,547 INFO L225 Difference]: With dead ends: 101 [2019-09-20 13:29:56,547 INFO L226 Difference]: Without dead ends: 101 [2019-09-20 13:29:56,548 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 13:29:56,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-09-20 13:29:56,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2019-09-20 13:29:56,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-09-20 13:29:56,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 118 transitions. [2019-09-20 13:29:56,575 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 118 transitions. Word has length 52 [2019-09-20 13:29:56,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:56,578 INFO L475 AbstractCegarLoop]: Abstraction has 101 states and 118 transitions. [2019-09-20 13:29:56,578 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:56,579 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 118 transitions. [2019-09-20 13:29:56,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-20 13:29:56,581 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:56,582 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 13:29:56,582 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:56,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:56,583 INFO L82 PathProgramCache]: Analyzing trace with hash -13017803, now seen corresponding path program 1 times [2019-09-20 13:29:56,583 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:56,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:56,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:56,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:56,587 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:56,746 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 13:29:56,747 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:56,747 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:29:56,747 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:56,748 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:29:56,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:29:56,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:56,749 INFO L87 Difference]: Start difference. First operand 101 states and 118 transitions. Second operand 7 states. [2019-09-20 13:29:57,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:57,191 INFO L93 Difference]: Finished difference Result 225 states and 272 transitions. [2019-09-20 13:29:57,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:29:57,192 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-09-20 13:29:57,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:57,196 INFO L225 Difference]: With dead ends: 225 [2019-09-20 13:29:57,196 INFO L226 Difference]: Without dead ends: 225 [2019-09-20 13:29:57,197 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 13:29:57,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2019-09-20 13:29:57,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 217. [2019-09-20 13:29:57,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2019-09-20 13:29:57,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 266 transitions. [2019-09-20 13:29:57,223 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 266 transitions. Word has length 56 [2019-09-20 13:29:57,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:57,224 INFO L475 AbstractCegarLoop]: Abstraction has 217 states and 266 transitions. [2019-09-20 13:29:57,224 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:29:57,224 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 266 transitions. [2019-09-20 13:29:57,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-09-20 13:29:57,227 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:57,227 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] [2019-09-20 13:29:57,228 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:57,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:57,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1884102266, now seen corresponding path program 1 times [2019-09-20 13:29:57,228 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:57,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:57,232 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:57,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:57,232 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:57,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:57,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:57,419 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:57,420 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:57,420 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:57,420 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:57,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:57,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:57,421 INFO L87 Difference]: Start difference. First operand 217 states and 266 transitions. Second operand 6 states. [2019-09-20 13:29:57,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:57,618 INFO L93 Difference]: Finished difference Result 388 states and 478 transitions. [2019-09-20 13:29:57,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:57,618 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2019-09-20 13:29:57,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:57,626 INFO L225 Difference]: With dead ends: 388 [2019-09-20 13:29:57,626 INFO L226 Difference]: Without dead ends: 388 [2019-09-20 13:29:57,627 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 13:29:57,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2019-09-20 13:29:57,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 382. [2019-09-20 13:29:57,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2019-09-20 13:29:57,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 472 transitions. [2019-09-20 13:29:57,704 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 472 transitions. Word has length 62 [2019-09-20 13:29:57,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:57,705 INFO L475 AbstractCegarLoop]: Abstraction has 382 states and 472 transitions. [2019-09-20 13:29:57,705 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:57,705 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 472 transitions. [2019-09-20 13:29:57,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-20 13:29:57,711 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:57,711 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, 1, 1, 1] [2019-09-20 13:29:57,711 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:57,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:57,712 INFO L82 PathProgramCache]: Analyzing trace with hash -2089210538, now seen corresponding path program 1 times [2019-09-20 13:29:57,712 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:57,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:57,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:57,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:57,715 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:57,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:57,802 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 13:29:57,803 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:57,803 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:57,803 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:57,803 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:57,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:57,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:57,804 INFO L87 Difference]: Start difference. First operand 382 states and 472 transitions. Second operand 6 states. [2019-09-20 13:29:57,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:57,963 INFO L93 Difference]: Finished difference Result 294 states and 341 transitions. [2019-09-20 13:29:57,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:29:57,963 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2019-09-20 13:29:57,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:57,964 INFO L225 Difference]: With dead ends: 294 [2019-09-20 13:29:57,964 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:29:57,965 INFO L636 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 [2019-09-20 13:29:57,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:29:57,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:29:57,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:29:57,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:29:57,966 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 66 [2019-09-20 13:29:57,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:57,968 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:29:57,968 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:57,968 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:29:57,969 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:29:57,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:29:57 BoogieIcfgContainer [2019-09-20 13:29:57,976 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:29:57,979 INFO L168 Benchmark]: Toolchain (without parser) took 4111.74 ms. Allocated memory was 132.1 MB in the beginning and 261.6 MB in the end (delta: 129.5 MB). Free memory was 85.9 MB in the beginning and 150.3 MB in the end (delta: -64.5 MB). Peak memory consumption was 65.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:57,981 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 132.1 MB. Free memory was 105.1 MB in the beginning and 104.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:29:57,982 INFO L168 Benchmark]: CACSL2BoogieTranslator took 691.59 ms. Allocated memory was 132.1 MB in the beginning and 199.2 MB in the end (delta: 67.1 MB). Free memory was 85.6 MB in the beginning and 164.2 MB in the end (delta: -78.6 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:57,984 INFO L168 Benchmark]: Boogie Preprocessor took 90.78 ms. Allocated memory is still 199.2 MB. Free memory was 164.2 MB in the beginning and 158.9 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:57,985 INFO L168 Benchmark]: RCFGBuilder took 1126.98 ms. Allocated memory was 199.2 MB in the beginning and 222.3 MB in the end (delta: 23.1 MB). Free memory was 158.9 MB in the beginning and 193.2 MB in the end (delta: -34.4 MB). Peak memory consumption was 90.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:57,987 INFO L168 Benchmark]: TraceAbstraction took 2197.45 ms. Allocated memory was 222.3 MB in the beginning and 261.6 MB in the end (delta: 39.3 MB). Free memory was 193.2 MB in the beginning and 150.3 MB in the end (delta: 42.9 MB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:57,996 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 132.1 MB. Free memory was 105.1 MB in the beginning and 104.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 691.59 ms. Allocated memory was 132.1 MB in the beginning and 199.2 MB in the end (delta: 67.1 MB). Free memory was 85.6 MB in the beginning and 164.2 MB in the end (delta: -78.6 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 90.78 ms. Allocated memory is still 199.2 MB. Free memory was 164.2 MB in the beginning and 158.9 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1126.98 ms. Allocated memory was 199.2 MB in the beginning and 222.3 MB in the end (delta: 23.1 MB). Free memory was 158.9 MB in the beginning and 193.2 MB in the end (delta: -34.4 MB). Peak memory consumption was 90.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2197.45 ms. Allocated memory was 222.3 MB in the beginning and 261.6 MB in the end (delta: 39.3 MB). Free memory was 193.2 MB in the beginning and 150.3 MB in the end (delta: 42.9 MB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 391]: 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 37 procedures, 215 locations, 1 error locations. SAFE Result, 2.1s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 628 SDtfs, 338 SDslu, 1268 SDs, 0 SdLazy, 296 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=382occurred 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, 14 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 287 NumberOfCodeBlocks, 287 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 282 ConstructedInterpolants, 0 QuantifiedInterpolants, 26354 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...