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_spec1_product01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:47:10,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:47:10,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:47:10,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:47:10,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:47:10,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:47:10,697 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:47:10,699 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:47:10,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:47:10,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:47:10,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:47:10,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:47:10,707 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:47:10,708 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:47:10,709 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:47:10,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:47:10,711 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:47:10,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:47:10,717 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:47:10,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:47:10,725 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:47:10,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:47:10,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:47:10,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:47:10,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:47:10,732 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:47:10,733 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:47:10,734 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:47:10,735 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:47:10,737 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:47:10,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:47:10,740 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:47:10,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:47:10,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:47:10,745 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:47:10,745 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:47:10,746 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:47:10,746 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:47:10,746 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:47:10,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:47:10,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:47:10,751 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 02:47:10,773 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:47:10,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:47:10,775 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:47:10,775 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:47:10,776 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:47:10,776 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:47:10,776 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:47:10,776 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:47:10,777 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:47:10,777 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:47:10,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:47:10,779 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:47:10,779 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:47:10,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:47:10,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:47:10,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:47:10,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:47:10,781 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:47:10,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:47:10,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:47:10,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:47:10,782 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:47:10,782 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:47:10,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:47:10,782 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:47:10,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:47:10,783 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:47:10,783 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:47:10,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:47:10,783 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:47:10,818 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:47:10,838 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:47:10,845 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:47:10,846 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:47:10,847 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:47:10,848 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product01.cil.c [2019-09-10 02:47:10,919 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/038c4c722/1b35c9b51b6746fd87aef11138298529/FLAG15bc55416 [2019-09-10 02:47:11,462 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:47:11,462 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product01.cil.c [2019-09-10 02:47:11,478 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/038c4c722/1b35c9b51b6746fd87aef11138298529/FLAG15bc55416 [2019-09-10 02:47:11,754 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/038c4c722/1b35c9b51b6746fd87aef11138298529 [2019-09-10 02:47:11,763 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:47:11,764 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:47:11,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:47:11,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:47:11,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:47:11,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:47:11" (1/1) ... [2019-09-10 02:47:11,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@273d4276 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:11, skipping insertion in model container [2019-09-10 02:47:11,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:47:11" (1/1) ... [2019-09-10 02:47:11,781 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:47:11,829 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:47:12,269 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:47:12,285 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:47:12,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:47:12,411 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:47:12,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:12 WrapperNode [2019-09-10 02:47:12,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:47:12,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:47:12,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:47:12,412 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:47:12,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:12" (1/1) ... [2019-09-10 02:47:12,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:12" (1/1) ... [2019-09-10 02:47:12,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:12" (1/1) ... [2019-09-10 02:47:12,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:12" (1/1) ... [2019-09-10 02:47:12,481 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:12" (1/1) ... [2019-09-10 02:47:12,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:12" (1/1) ... [2019-09-10 02:47:12,494 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:12" (1/1) ... [2019-09-10 02:47:12,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:47:12,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:47:12,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:47:12,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:47:12,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:12" (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 02:47:12,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:47:12,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:47:12,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:47:12,571 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:47:12,571 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:47:12,572 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:47:12,572 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:47:12,572 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:47:12,572 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:47:12,572 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:47:12,572 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:47:12,573 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:47:12,573 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:47:12,573 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:47:12,573 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:47:12,573 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:47:12,573 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:47:12,574 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:47:12,574 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:47:12,574 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:47:12,574 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:47:12,574 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:47:12,575 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:47:12,575 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:47:12,575 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:47:12,575 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:47:12,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-10 02:47:12,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:47:12,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:47:12,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:47:12,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:47:12,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:47:12,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:47:12,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:47:12,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:47:12,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:47:12,577 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:47:12,577 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:47:12,577 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:47:12,578 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:47:12,578 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:47:12,578 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:47:12,578 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:47:12,578 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:47:12,578 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:47:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:47:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:47:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:47:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:47:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:47:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:47:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:47:12,580 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:47:12,580 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:47:12,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:47:12,580 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:47:12,580 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:47:12,580 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:47:12,580 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:47:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-10 02:47:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:47:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:47:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:47:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:47:12,582 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:47:12,582 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:47:12,582 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:47:12,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:47:12,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:47:12,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:47:12,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:47:12,583 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:47:12,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:47:12,583 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:47:12,583 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:47:12,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:47:12,583 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:47:12,584 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:47:12,584 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:47:12,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:47:12,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:47:12,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:47:13,807 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:47:13,808 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:47:13,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:47:13 BoogieIcfgContainer [2019-09-10 02:47:13,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:47:13,810 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:47:13,811 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:47:13,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:47:13,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:47:11" (1/3) ... [2019-09-10 02:47:13,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e26c19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:47:13, skipping insertion in model container [2019-09-10 02:47:13,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:12" (2/3) ... [2019-09-10 02:47:13,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e26c19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:47:13, skipping insertion in model container [2019-09-10 02:47:13,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:47:13" (3/3) ... [2019-09-10 02:47:13,818 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product01.cil.c [2019-09-10 02:47:13,827 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:47:13,836 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:47:13,854 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:47:13,895 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:47:13,895 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:47:13,895 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:47:13,896 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:47:13,896 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:47:13,896 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:47:13,896 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:47:13,896 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:47:13,922 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states. [2019-09-10 02:47:13,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-10 02:47:13,936 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:13,937 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 02:47:13,941 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:13,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:13,948 INFO L82 PathProgramCache]: Analyzing trace with hash -835397562, now seen corresponding path program 1 times [2019-09-10 02:47:13,950 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:13,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:13,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:13,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:13,997 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:14,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:14,326 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 02:47:14,328 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:14,329 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:47:14,329 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:14,336 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:47:14,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:47:14,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:47:14,355 INFO L87 Difference]: Start difference. First operand 127 states. Second operand 2 states. [2019-09-10 02:47:14,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:14,387 INFO L93 Difference]: Finished difference Result 92 states and 106 transitions. [2019-09-10 02:47:14,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:47:14,389 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-10 02:47:14,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:14,402 INFO L225 Difference]: With dead ends: 92 [2019-09-10 02:47:14,402 INFO L226 Difference]: Without dead ends: 81 [2019-09-10 02:47:14,405 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 02:47:14,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2019-09-10 02:47:14,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2019-09-10 02:47:14,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-09-10 02:47:14,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 94 transitions. [2019-09-10 02:47:14,459 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 94 transitions. Word has length 46 [2019-09-10 02:47:14,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:14,460 INFO L475 AbstractCegarLoop]: Abstraction has 81 states and 94 transitions. [2019-09-10 02:47:14,460 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:47:14,460 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 94 transitions. [2019-09-10 02:47:14,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-10 02:47:14,463 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:14,464 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 02:47:14,464 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:14,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:14,465 INFO L82 PathProgramCache]: Analyzing trace with hash -297882774, now seen corresponding path program 1 times [2019-09-10 02:47:14,465 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:14,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:14,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:14,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:14,466 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:14,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:14,567 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 02:47:14,568 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:14,568 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:47:14,568 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:14,570 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:47:14,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:47:14,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:47:14,572 INFO L87 Difference]: Start difference. First operand 81 states and 94 transitions. Second operand 3 states. [2019-09-10 02:47:14,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:14,590 INFO L93 Difference]: Finished difference Result 72 states and 82 transitions. [2019-09-10 02:47:14,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:47:14,590 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-10 02:47:14,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:14,592 INFO L225 Difference]: With dead ends: 72 [2019-09-10 02:47:14,592 INFO L226 Difference]: Without dead ends: 72 [2019-09-10 02:47:14,593 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 02:47:14,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-09-10 02:47:14,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2019-09-10 02:47:14,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-09-10 02:47:14,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 82 transitions. [2019-09-10 02:47:14,602 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 82 transitions. Word has length 47 [2019-09-10 02:47:14,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:14,603 INFO L475 AbstractCegarLoop]: Abstraction has 72 states and 82 transitions. [2019-09-10 02:47:14,603 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:47:14,603 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 82 transitions. [2019-09-10 02:47:14,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-10 02:47:14,605 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:14,605 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] [2019-09-10 02:47:14,605 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:14,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:14,606 INFO L82 PathProgramCache]: Analyzing trace with hash 2081031283, now seen corresponding path program 1 times [2019-09-10 02:47:14,606 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:14,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:14,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:14,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:14,607 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:14,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:14,782 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 02:47:14,782 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:14,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:47:14,783 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:14,783 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:47:14,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:47:14,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:47:14,784 INFO L87 Difference]: Start difference. First operand 72 states and 82 transitions. Second operand 7 states. [2019-09-10 02:47:15,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:15,027 INFO L93 Difference]: Finished difference Result 72 states and 81 transitions. [2019-09-10 02:47:15,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:47:15,027 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-09-10 02:47:15,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:15,029 INFO L225 Difference]: With dead ends: 72 [2019-09-10 02:47:15,029 INFO L226 Difference]: Without dead ends: 72 [2019-09-10 02:47:15,029 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 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 02:47:15,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-09-10 02:47:15,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2019-09-10 02:47:15,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-09-10 02:47:15,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 81 transitions. [2019-09-10 02:47:15,038 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 81 transitions. Word has length 51 [2019-09-10 02:47:15,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:15,038 INFO L475 AbstractCegarLoop]: Abstraction has 72 states and 81 transitions. [2019-09-10 02:47:15,038 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:47:15,038 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 81 transitions. [2019-09-10 02:47:15,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-09-10 02:47:15,040 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:15,040 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] [2019-09-10 02:47:15,041 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:15,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:15,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1503869897, now seen corresponding path program 1 times [2019-09-10 02:47:15,042 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:15,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:15,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:15,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:15,043 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:15,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:15,149 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 02:47:15,150 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:15,150 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:47:15,150 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:15,150 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:47:15,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:47:15,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:47:15,151 INFO L87 Difference]: Start difference. First operand 72 states and 81 transitions. Second operand 6 states. [2019-09-10 02:47:15,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:15,312 INFO L93 Difference]: Finished difference Result 113 states and 130 transitions. [2019-09-10 02:47:15,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:47:15,312 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2019-09-10 02:47:15,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:15,317 INFO L225 Difference]: With dead ends: 113 [2019-09-10 02:47:15,317 INFO L226 Difference]: Without dead ends: 113 [2019-09-10 02:47:15,318 INFO L628 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 [2019-09-10 02:47:15,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-09-10 02:47:15,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 111. [2019-09-10 02:47:15,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-09-10 02:47:15,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 128 transitions. [2019-09-10 02:47:15,331 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 128 transitions. Word has length 54 [2019-09-10 02:47:15,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:15,332 INFO L475 AbstractCegarLoop]: Abstraction has 111 states and 128 transitions. [2019-09-10 02:47:15,332 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:47:15,332 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 128 transitions. [2019-09-10 02:47:15,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-09-10 02:47:15,334 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:15,334 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] [2019-09-10 02:47:15,334 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:15,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:15,335 INFO L82 PathProgramCache]: Analyzing trace with hash 353010405, now seen corresponding path program 1 times [2019-09-10 02:47:15,335 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:15,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:15,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:15,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:15,336 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:15,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:15,437 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 02:47:15,437 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:15,437 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:47:15,437 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:15,438 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:47:15,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:47:15,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:47:15,439 INFO L87 Difference]: Start difference. First operand 111 states and 128 transitions. Second operand 6 states. [2019-09-10 02:47:15,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:15,582 INFO L93 Difference]: Finished difference Result 102 states and 115 transitions. [2019-09-10 02:47:15,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:47:15,582 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2019-09-10 02:47:15,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:15,583 INFO L225 Difference]: With dead ends: 102 [2019-09-10 02:47:15,583 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:47:15,583 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 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 02:47:15,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:47:15,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:47:15,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:47:15,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:47:15,584 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2019-09-10 02:47:15,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:15,584 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:47:15,584 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:47:15,584 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:47:15,584 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:47:15,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:47:15 BoogieIcfgContainer [2019-09-10 02:47:15,590 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:47:15,592 INFO L168 Benchmark]: Toolchain (without parser) took 3827.07 ms. Allocated memory was 134.2 MB in the beginning and 256.4 MB in the end (delta: 122.2 MB). Free memory was 88.2 MB in the beginning and 199.1 MB in the end (delta: -110.9 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:15,593 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 134.2 MB. Free memory was 107.5 MB in the beginning and 107.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:47:15,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 646.55 ms. Allocated memory was 134.2 MB in the beginning and 199.8 MB in the end (delta: 65.5 MB). Free memory was 88.0 MB in the beginning and 165.8 MB in the end (delta: -77.8 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:15,595 INFO L168 Benchmark]: Boogie Preprocessor took 89.46 ms. Allocated memory is still 199.8 MB. Free memory was 165.8 MB in the beginning and 162.2 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:15,596 INFO L168 Benchmark]: RCFGBuilder took 1307.42 ms. Allocated memory is still 199.8 MB. Free memory was 162.2 MB in the beginning and 84.1 MB in the end (delta: 78.1 MB). Peak memory consumption was 78.1 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:15,597 INFO L168 Benchmark]: TraceAbstraction took 1779.43 ms. Allocated memory was 199.8 MB in the beginning and 256.4 MB in the end (delta: 56.6 MB). Free memory was 83.5 MB in the beginning and 199.1 MB in the end (delta: -115.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 02:47:15,601 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 134.2 MB. Free memory was 107.5 MB in the beginning and 107.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 646.55 ms. Allocated memory was 134.2 MB in the beginning and 199.8 MB in the end (delta: 65.5 MB). Free memory was 88.0 MB in the beginning and 165.8 MB in the end (delta: -77.8 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.46 ms. Allocated memory is still 199.8 MB. Free memory was 165.8 MB in the beginning and 162.2 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1307.42 ms. Allocated memory is still 199.8 MB. Free memory was 162.2 MB in the beginning and 84.1 MB in the end (delta: 78.1 MB). Peak memory consumption was 78.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1779.43 ms. Allocated memory was 199.8 MB in the beginning and 256.4 MB in the end (delta: 56.6 MB). Free memory was 83.5 MB in the beginning and 199.1 MB in the end (delta: -115.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 470]: 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 34 procedures, 194 locations, 1 error locations. SAFE Result, 1.7s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 419 SDtfs, 163 SDslu, 692 SDs, 0 SdLazy, 163 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=127occurred in iteration=0, 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 256 NumberOfCodeBlocks, 256 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 251 ConstructedInterpolants, 0 QuantifiedInterpolants, 23729 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...