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_product17.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:08:12,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:08:12,557 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:08:12,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:08:12,574 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:08:12,575 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:08:12,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:08:12,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:08:12,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:08:12,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:08:12,595 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:08:12,596 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:08:12,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:08:12,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:08:12,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:08:12,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:08:12,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:08:12,604 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:08:12,605 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:08:12,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:08:12,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:08:12,617 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:08:12,620 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:08:12,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:08:12,623 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:08:12,623 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:08:12,623 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:08:12,625 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:08:12,626 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:08:12,627 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:08:12,627 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:08:12,629 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:08:12,630 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:08:12,630 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:08:12,632 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:08:12,633 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:08:12,633 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:08:12,633 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:08:12,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:08:12,634 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:08:12,635 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:08:12,636 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 [2019-09-16 17:08:12,661 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:08:12,663 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:08:12,664 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:08:12,664 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:08:12,664 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:08:12,665 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:08:12,665 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:08:12,665 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:08:12,665 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:08:12,666 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:08:12,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:08:12,667 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:08:12,667 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:08:12,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:08:12,669 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:08:12,670 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:08:12,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:08:12,670 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:08:12,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:08:12,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:08:12,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:08:12,671 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:08:12,671 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:08:12,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:08:12,672 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:08:12,672 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:08:12,672 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:08:12,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:08:12,673 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:08:12,673 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:08:12,725 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:08:12,739 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:08:12,742 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:08:12,743 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:08:12,744 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:08:12,745 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product17.cil.c [2019-09-16 17:08:12,809 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e88190ca0/b3818c99fcb144d0b7704fb3f5a23dbc/FLAG7dc2d6d79 [2019-09-16 17:08:13,306 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:08:13,307 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product17.cil.c [2019-09-16 17:08:13,326 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e88190ca0/b3818c99fcb144d0b7704fb3f5a23dbc/FLAG7dc2d6d79 [2019-09-16 17:08:13,622 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e88190ca0/b3818c99fcb144d0b7704fb3f5a23dbc [2019-09-16 17:08:13,631 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:08:13,632 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:08:13,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:13,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:08:13,637 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:08:13,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:13" (1/1) ... [2019-09-16 17:08:13,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ad02aa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:13, skipping insertion in model container [2019-09-16 17:08:13,641 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:13" (1/1) ... [2019-09-16 17:08:13,647 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:08:13,692 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:08:14,121 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:14,135 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:08:14,213 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:14,254 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:08:14,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:14 WrapperNode [2019-09-16 17:08:14,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:14,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:08:14,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:08:14,256 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:08:14,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:14" (1/1) ... [2019-09-16 17:08:14,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:14" (1/1) ... [2019-09-16 17:08:14,301 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:14" (1/1) ... [2019-09-16 17:08:14,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:14" (1/1) ... [2019-09-16 17:08:14,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:14" (1/1) ... [2019-09-16 17:08:14,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:14" (1/1) ... [2019-09-16 17:08:14,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:14" (1/1) ... [2019-09-16 17:08:14,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:08:14,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:08:14,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:08:14,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:08:14,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:14" (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 [2019-09-16 17:08:14,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:08:14,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:08:14,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:14,451 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:08:14,451 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:08:14,452 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:08:14,452 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:08:14,452 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:08:14,452 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:08:14,452 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-16 17:08:14,453 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:08:14,453 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:08:14,453 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-16 17:08:14,454 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:08:14,454 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:08:14,455 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:08:14,455 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:08:14,456 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:08:14,456 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:08:14,456 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-16 17:08:14,456 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:08:14,456 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:08:14,456 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:08:14,457 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:08:14,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:08:14,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:14,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:14,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:14,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:08:14,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:08:14,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:08:14,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-16 17:08:14,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-16 17:08:14,459 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:08:14,459 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:08:14,459 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:08:14,459 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:08:14,460 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:08:14,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:08:14,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:08:14,460 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:08:14,460 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:08:14,461 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:08:14,461 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:08:14,461 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:08:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:08:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:08:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-16 17:08:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:08:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:08:14,463 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:08:14,463 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:08:14,463 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:08:14,463 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:08:14,463 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:08:14,464 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:08:14,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-16 17:08:14,464 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:08:14,464 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-16 17:08:14,464 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-16 17:08:14,464 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:08:14,465 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:08:14,465 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:08:14,465 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:08:14,465 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:08:14,466 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:08:14,466 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:08:14,466 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:08:14,466 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:08:14,466 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:14,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:08:14,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:08:14,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:08:14,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:08:14,468 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:14,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:08:14,468 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:14,468 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:14,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:08:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:08:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:08:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:08:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-16 17:08:14,470 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:08:14,470 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:08:14,470 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:08:14,471 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:08:14,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:08:14,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:08:14,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:08:15,632 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:08:15,632 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:08:15,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:15 BoogieIcfgContainer [2019-09-16 17:08:15,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:08:15,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:08:15,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:08:15,639 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:08:15,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:08:13" (1/3) ... [2019-09-16 17:08:15,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ca77f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:15, skipping insertion in model container [2019-09-16 17:08:15,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:14" (2/3) ... [2019-09-16 17:08:15,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ca77f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:15, skipping insertion in model container [2019-09-16 17:08:15,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:15" (3/3) ... [2019-09-16 17:08:15,644 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product17.cil.c [2019-09-16 17:08:15,654 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:08:15,666 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:08:15,683 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:08:15,712 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:08:15,712 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:08:15,712 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:08:15,712 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:08:15,713 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:08:15,713 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:08:15,713 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:08:15,713 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:08:15,754 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states. [2019-09-16 17:08:15,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-16 17:08:15,767 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:15,768 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] [2019-09-16 17:08:15,772 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:15,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:15,778 INFO L82 PathProgramCache]: Analyzing trace with hash -1676569926, now seen corresponding path program 1 times [2019-09-16 17:08:15,780 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:15,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:15,842 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:15,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:15,842 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:16,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:16,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:16,167 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:16,167 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:08:16,168 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:16,173 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:08:16,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:08:16,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:16,192 INFO L87 Difference]: Start difference. First operand 155 states. Second operand 2 states. [2019-09-16 17:08:16,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:16,232 INFO L93 Difference]: Finished difference Result 120 states and 139 transitions. [2019-09-16 17:08:16,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:08:16,234 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-16 17:08:16,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:16,254 INFO L225 Difference]: With dead ends: 120 [2019-09-16 17:08:16,254 INFO L226 Difference]: Without dead ends: 109 [2019-09-16 17:08:16,258 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 [2019-09-16 17:08:16,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-09-16 17:08:16,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2019-09-16 17:08:16,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-09-16 17:08:16,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 127 transitions. [2019-09-16 17:08:16,331 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 127 transitions. Word has length 51 [2019-09-16 17:08:16,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:16,332 INFO L475 AbstractCegarLoop]: Abstraction has 109 states and 127 transitions. [2019-09-16 17:08:16,332 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:08:16,332 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 127 transitions. [2019-09-16 17:08:16,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-16 17:08:16,338 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:16,338 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] [2019-09-16 17:08:16,338 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:16,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:16,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1153065381, now seen corresponding path program 1 times [2019-09-16 17:08:16,340 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:16,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:16,343 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:16,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:16,343 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:16,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:16,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:16,452 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:16,452 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:08:16,452 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:16,454 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:08:16,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:08:16,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:08:16,455 INFO L87 Difference]: Start difference. First operand 109 states and 127 transitions. Second operand 3 states. [2019-09-16 17:08:16,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:16,468 INFO L93 Difference]: Finished difference Result 100 states and 115 transitions. [2019-09-16 17:08:16,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:08:16,469 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-16 17:08:16,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:16,471 INFO L225 Difference]: With dead ends: 100 [2019-09-16 17:08:16,471 INFO L226 Difference]: Without dead ends: 100 [2019-09-16 17:08:16,472 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 [2019-09-16 17:08:16,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2019-09-16 17:08:16,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2019-09-16 17:08:16,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-09-16 17:08:16,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2019-09-16 17:08:16,483 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 52 [2019-09-16 17:08:16,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:16,483 INFO L475 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2019-09-16 17:08:16,484 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:08:16,484 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2019-09-16 17:08:16,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-16 17:08:16,486 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:16,486 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] [2019-09-16 17:08:16,486 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:16,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:16,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1044630824, now seen corresponding path program 1 times [2019-09-16 17:08:16,487 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:16,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:16,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:16,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:16,490 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:16,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:16,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:16,607 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:16,607 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:08:16,607 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:16,608 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:08:16,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:08:16,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:16,608 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand 7 states. [2019-09-16 17:08:16,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:16,892 INFO L93 Difference]: Finished difference Result 100 states and 114 transitions. [2019-09-16 17:08:16,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:08:16,893 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-09-16 17:08:16,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:16,895 INFO L225 Difference]: With dead ends: 100 [2019-09-16 17:08:16,895 INFO L226 Difference]: Without dead ends: 100 [2019-09-16 17:08:16,897 INFO L636 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 [2019-09-16 17:08:16,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2019-09-16 17:08:16,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2019-09-16 17:08:16,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-09-16 17:08:16,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 114 transitions. [2019-09-16 17:08:16,917 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 114 transitions. Word has length 56 [2019-09-16 17:08:16,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:16,917 INFO L475 AbstractCegarLoop]: Abstraction has 100 states and 114 transitions. [2019-09-16 17:08:16,917 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:08:16,918 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 114 transitions. [2019-09-16 17:08:16,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-16 17:08:16,923 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:16,923 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] [2019-09-16 17:08:16,926 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:16,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:16,928 INFO L82 PathProgramCache]: Analyzing trace with hash -2135764053, now seen corresponding path program 1 times [2019-09-16 17:08:16,929 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:16,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:16,931 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:16,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:16,932 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:16,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:17,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:17,074 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:17,074 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:08:17,074 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:17,075 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:08:17,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:08:17,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:08:17,075 INFO L87 Difference]: Start difference. First operand 100 states and 114 transitions. Second operand 6 states. [2019-09-16 17:08:17,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:17,329 INFO L93 Difference]: Finished difference Result 164 states and 190 transitions. [2019-09-16 17:08:17,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:08:17,330 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2019-09-16 17:08:17,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:17,336 INFO L225 Difference]: With dead ends: 164 [2019-09-16 17:08:17,336 INFO L226 Difference]: Without dead ends: 164 [2019-09-16 17:08:17,337 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 [2019-09-16 17:08:17,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2019-09-16 17:08:17,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 162. [2019-09-16 17:08:17,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2019-09-16 17:08:17,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 188 transitions. [2019-09-16 17:08:17,361 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 188 transitions. Word has length 64 [2019-09-16 17:08:17,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:17,361 INFO L475 AbstractCegarLoop]: Abstraction has 162 states and 188 transitions. [2019-09-16 17:08:17,362 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:08:17,362 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 188 transitions. [2019-09-16 17:08:17,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-16 17:08:17,364 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:17,364 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, 1, 1] [2019-09-16 17:08:17,364 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:17,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:17,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1965999161, now seen corresponding path program 1 times [2019-09-16 17:08:17,365 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:17,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:17,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:17,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:17,368 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:17,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:17,460 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:17,460 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:08:17,461 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:17,461 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:08:17,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:08:17,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:17,462 INFO L87 Difference]: Start difference. First operand 162 states and 188 transitions. Second operand 7 states. [2019-09-16 17:08:17,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:17,762 INFO L93 Difference]: Finished difference Result 116 states and 129 transitions. [2019-09-16 17:08:17,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:08:17,762 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 68 [2019-09-16 17:08:17,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:17,763 INFO L225 Difference]: With dead ends: 116 [2019-09-16 17:08:17,763 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:08:17,764 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-09-16 17:08:17,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:08:17,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:08:17,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:08:17,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:08:17,767 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2019-09-16 17:08:17,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:17,767 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:08:17,767 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:08:17,767 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:08:17,768 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:08:17,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:08:17 BoogieIcfgContainer [2019-09-16 17:08:17,775 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:08:17,779 INFO L168 Benchmark]: Toolchain (without parser) took 4145.09 ms. Allocated memory was 136.8 MB in the beginning and 269.5 MB in the end (delta: 132.6 MB). Free memory was 85.1 MB in the beginning and 169.0 MB in the end (delta: -83.9 MB). Peak memory consumption was 48.7 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:17,780 INFO L168 Benchmark]: CDTParser took 1.10 ms. Allocated memory is still 136.8 MB. Free memory is still 104.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-16 17:08:17,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 622.51 ms. Allocated memory was 136.8 MB in the beginning and 199.8 MB in the end (delta: 62.9 MB). Free memory was 85.1 MB in the beginning and 165.7 MB in the end (delta: -80.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:17,783 INFO L168 Benchmark]: Boogie Preprocessor took 102.60 ms. Allocated memory is still 199.8 MB. Free memory was 165.7 MB in the beginning and 162.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:17,784 INFO L168 Benchmark]: RCFGBuilder took 1275.38 ms. Allocated memory is still 199.8 MB. Free memory was 162.0 MB in the beginning and 79.4 MB in the end (delta: 82.6 MB). Peak memory consumption was 82.6 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:17,786 INFO L168 Benchmark]: TraceAbstraction took 2140.21 ms. Allocated memory was 199.8 MB in the beginning and 269.5 MB in the end (delta: 69.7 MB). Free memory was 79.4 MB in the beginning and 169.0 MB in the end (delta: -89.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-16 17:08:17,796 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.10 ms. Allocated memory is still 136.8 MB. Free memory is still 104.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 622.51 ms. Allocated memory was 136.8 MB in the beginning and 199.8 MB in the end (delta: 62.9 MB). Free memory was 85.1 MB in the beginning and 165.7 MB in the end (delta: -80.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.60 ms. Allocated memory is still 199.8 MB. Free memory was 165.7 MB in the beginning and 162.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1275.38 ms. Allocated memory is still 199.8 MB. Free memory was 162.0 MB in the beginning and 79.4 MB in the end (delta: 82.6 MB). Peak memory consumption was 82.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2140.21 ms. Allocated memory was 199.8 MB in the beginning and 269.5 MB in the end (delta: 69.7 MB). Free memory was 79.4 MB in the beginning and 169.0 MB in the end (delta: -89.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 402]: 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 38 procedures, 219 locations, 1 error locations. SAFE Result, 2.0s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 550 SDtfs, 263 SDslu, 859 SDs, 0 SdLazy, 316 SolverSat, 61 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=162occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 291 NumberOfCodeBlocks, 291 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 286 ConstructedInterpolants, 0 QuantifiedInterpolants, 30424 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...