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_spec5_product46.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:59:03,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:59:03,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:59:03,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:59:03,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:59:03,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:59:03,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:59:03,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:59:03,788 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:59:03,789 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:59:03,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:59:03,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:59:03,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:59:03,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:59:03,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:59:03,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:59:03,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:59:03,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:59:03,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:59:03,800 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:59:03,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:59:03,802 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:59:03,803 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:59:03,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:59:03,806 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:59:03,807 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:59:03,807 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:59:03,808 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:59:03,808 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:59:03,809 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:59:03,809 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:59:03,810 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:59:03,811 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:59:03,812 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:59:03,813 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:59:03,813 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:59:03,813 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:59:03,814 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:59:03,814 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:59:03,815 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:59:03,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:59:03,816 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 [2019-10-03 02:59:03,831 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:59:03,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:59:03,832 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:59:03,832 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:59:03,833 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:59:03,833 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:59:03,834 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:59:03,834 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:59:03,834 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:59:03,834 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:59:03,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:59:03,835 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:59:03,835 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:59:03,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:59:03,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:59:03,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:59:03,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:59:03,836 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:59:03,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:59:03,837 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:59:03,837 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:59:03,837 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:59:03,837 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:59:03,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:59:03,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:59:03,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:59:03,838 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:59:03,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:59:03,839 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:59:03,839 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:59:03,867 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:59:03,881 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:59:03,885 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:59:03,887 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:59:03,887 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:59:03,888 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product46.cil.c [2019-10-03 02:59:03,953 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5f5714cb/bb63e9c1f7a04924a4255e7c6f1bf8ff/FLAG8dbf1a6bc [2019-10-03 02:59:04,544 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:59:04,545 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product46.cil.c [2019-10-03 02:59:04,573 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5f5714cb/bb63e9c1f7a04924a4255e7c6f1bf8ff/FLAG8dbf1a6bc [2019-10-03 02:59:04,779 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5f5714cb/bb63e9c1f7a04924a4255e7c6f1bf8ff [2019-10-03 02:59:04,789 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:59:04,791 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:59:04,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:59:04,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:59:04,796 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:59:04,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:59:04" (1/1) ... [2019-10-03 02:59:04,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@958021d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:04, skipping insertion in model container [2019-10-03 02:59:04,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:59:04" (1/1) ... [2019-10-03 02:59:04,808 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:59:04,870 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:59:05,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:59:05,379 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:59:05,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:59:05,516 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:59:05,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:05 WrapperNode [2019-10-03 02:59:05,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:59:05,519 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:59:05,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:59:05,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:59:05,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:05" (1/1) ... [2019-10-03 02:59:05,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:05" (1/1) ... [2019-10-03 02:59:05,553 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:05" (1/1) ... [2019-10-03 02:59:05,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:05" (1/1) ... [2019-10-03 02:59:05,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:05" (1/1) ... [2019-10-03 02:59:05,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:05" (1/1) ... [2019-10-03 02:59:05,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:05" (1/1) ... [2019-10-03 02:59:05,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:59:05,607 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:59:05,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:59:05,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:59:05,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:05" (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 [2019-10-03 02:59:05,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:59:05,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:59:05,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:59:05,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-03 02:59:05,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-03 02:59:05,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-03 02:59:05,671 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:59:05,671 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:59:05,671 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:59:05,671 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:59:05,671 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:59:05,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:59:05,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:59:05,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:59:05,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:59:05,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:59:05,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:59:05,673 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:59:05,673 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:59:05,673 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:59:05,673 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:59:05,673 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:59:05,673 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:59:05,673 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-03 02:59:05,674 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:59:05,674 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:59:05,674 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:59:05,674 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:59:05,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:59:05,674 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:59:05,675 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-03 02:59:05,675 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-03 02:59:05,675 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:59:05,675 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-10-03 02:59:05,675 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:59:05,675 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:59:05,675 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:59:05,676 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:59:05,676 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:59:05,676 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-03 02:59:05,676 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-03 02:59:05,676 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:59:05,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:59:05,677 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:59:05,677 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:59:05,677 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:59:05,677 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:59:05,677 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:59:05,678 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-03 02:59:05,678 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-03 02:59:05,678 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-03 02:59:05,678 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:59:05,678 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:59:05,678 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:59:05,678 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:59:05,679 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:59:05,679 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:59:05,679 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:59:05,679 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:59:05,679 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:59:05,679 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:59:05,680 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:59:05,680 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:59:05,680 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:59:05,680 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:59:05,680 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:59:05,680 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:59:05,681 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:59:05,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:59:05,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:59:05,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:59:05,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:59:05,681 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:59:05,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:59:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:59:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:59:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:59:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:59:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:59:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:59:05,683 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:59:05,683 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:59:05,683 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:59:05,683 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:59:05,683 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-03 02:59:05,683 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:59:05,684 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:59:05,684 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:59:05,684 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-03 02:59:05,684 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:59:05,684 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-03 02:59:05,684 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-03 02:59:05,684 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-03 02:59:05,685 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:59:05,685 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-10-03 02:59:05,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:59:05,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:59:05,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:59:06,807 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:59:06,807 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:59:06,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:59:06 BoogieIcfgContainer [2019-10-03 02:59:06,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:59:06,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:59:06,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:59:06,816 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:59:06,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:59:04" (1/3) ... [2019-10-03 02:59:06,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a54e72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:59:06, skipping insertion in model container [2019-10-03 02:59:06,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:05" (2/3) ... [2019-10-03 02:59:06,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a54e72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:59:06, skipping insertion in model container [2019-10-03 02:59:06,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:59:06" (3/3) ... [2019-10-03 02:59:06,820 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product46.cil.c [2019-10-03 02:59:06,831 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:59:06,843 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:59:06,861 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:59:06,894 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:59:06,895 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:59:06,895 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:59:06,895 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:59:06,896 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:59:06,897 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:59:06,897 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:59:06,897 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:59:06,928 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states. [2019-10-03 02:59:06,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-03 02:59:06,952 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:06,953 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:06,957 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:06,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:06,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1347369271, now seen corresponding path program 1 times [2019-10-03 02:59:06,965 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:07,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:07,027 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:07,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:07,028 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:07,362 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:07,365 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:07,366 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:59:07,367 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:07,376 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:59:07,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:59:07,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:59:07,392 INFO L87 Difference]: Start difference. First operand 190 states. Second operand 2 states. [2019-10-03 02:59:07,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:07,418 INFO L93 Difference]: Finished difference Result 158 states and 184 transitions. [2019-10-03 02:59:07,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:59:07,420 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-10-03 02:59:07,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:07,433 INFO L225 Difference]: With dead ends: 158 [2019-10-03 02:59:07,433 INFO L226 Difference]: Without dead ends: 147 [2019-10-03 02:59:07,435 INFO L640 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 [2019-10-03 02:59:07,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2019-10-03 02:59:07,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2019-10-03 02:59:07,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2019-10-03 02:59:07,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 172 transitions. [2019-10-03 02:59:07,491 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 172 transitions. Word has length 59 [2019-10-03 02:59:07,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:07,492 INFO L475 AbstractCegarLoop]: Abstraction has 147 states and 172 transitions. [2019-10-03 02:59:07,492 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:59:07,492 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 172 transitions. [2019-10-03 02:59:07,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-03 02:59:07,496 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:07,496 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:07,497 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:07,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:07,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1814034675, now seen corresponding path program 1 times [2019-10-03 02:59:07,497 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:07,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:07,500 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:07,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:07,501 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:07,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:07,662 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:07,662 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:07,662 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:59:07,663 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:07,667 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:59:07,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:59:07,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:59:07,668 INFO L87 Difference]: Start difference. First operand 147 states and 172 transitions. Second operand 3 states. [2019-10-03 02:59:07,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:07,701 INFO L93 Difference]: Finished difference Result 138 states and 160 transitions. [2019-10-03 02:59:07,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:59:07,704 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-10-03 02:59:07,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:07,710 INFO L225 Difference]: With dead ends: 138 [2019-10-03 02:59:07,710 INFO L226 Difference]: Without dead ends: 138 [2019-10-03 02:59:07,712 INFO L640 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 [2019-10-03 02:59:07,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2019-10-03 02:59:07,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2019-10-03 02:59:07,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-10-03 02:59:07,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 160 transitions. [2019-10-03 02:59:07,750 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 160 transitions. Word has length 60 [2019-10-03 02:59:07,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:07,751 INFO L475 AbstractCegarLoop]: Abstraction has 138 states and 160 transitions. [2019-10-03 02:59:07,751 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:59:07,751 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 160 transitions. [2019-10-03 02:59:07,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-03 02:59:07,754 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:07,754 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:07,756 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:07,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:07,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1518926539, now seen corresponding path program 1 times [2019-10-03 02:59:07,757 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:07,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:07,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:07,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:07,760 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:07,969 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:07,969 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:07,970 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:59:07,970 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:07,970 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:59:07,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:59:07,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:59:07,971 INFO L87 Difference]: Start difference. First operand 138 states and 160 transitions. Second operand 7 states. [2019-10-03 02:59:08,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:08,419 INFO L93 Difference]: Finished difference Result 138 states and 159 transitions. [2019-10-03 02:59:08,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:59:08,420 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2019-10-03 02:59:08,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:08,423 INFO L225 Difference]: With dead ends: 138 [2019-10-03 02:59:08,423 INFO L226 Difference]: Without dead ends: 138 [2019-10-03 02:59:08,425 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:59:08,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2019-10-03 02:59:08,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2019-10-03 02:59:08,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-10-03 02:59:08,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 159 transitions. [2019-10-03 02:59:08,456 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 159 transitions. Word has length 65 [2019-10-03 02:59:08,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:08,461 INFO L475 AbstractCegarLoop]: Abstraction has 138 states and 159 transitions. [2019-10-03 02:59:08,461 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:59:08,461 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 159 transitions. [2019-10-03 02:59:08,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-03 02:59:08,466 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:08,466 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:08,471 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:08,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:08,471 INFO L82 PathProgramCache]: Analyzing trace with hash 793046871, now seen corresponding path program 1 times [2019-10-03 02:59:08,472 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:08,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:08,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:08,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:08,476 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:08,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:08,656 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:08,657 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:08,657 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:59:08,658 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:08,660 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:59:08,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:59:08,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:59:08,661 INFO L87 Difference]: Start difference. First operand 138 states and 159 transitions. Second operand 5 states. [2019-10-03 02:59:09,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:09,267 INFO L93 Difference]: Finished difference Result 254 states and 293 transitions. [2019-10-03 02:59:09,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:59:09,268 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2019-10-03 02:59:09,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:09,271 INFO L225 Difference]: With dead ends: 254 [2019-10-03 02:59:09,271 INFO L226 Difference]: Without dead ends: 254 [2019-10-03 02:59:09,272 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:59:09,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2019-10-03 02:59:09,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 235. [2019-10-03 02:59:09,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2019-10-03 02:59:09,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 267 transitions. [2019-10-03 02:59:09,292 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 267 transitions. Word has length 78 [2019-10-03 02:59:09,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:09,292 INFO L475 AbstractCegarLoop]: Abstraction has 235 states and 267 transitions. [2019-10-03 02:59:09,292 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:59:09,293 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 267 transitions. [2019-10-03 02:59:09,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-03 02:59:09,299 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:09,299 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:09,299 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:09,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:09,300 INFO L82 PathProgramCache]: Analyzing trace with hash -856462191, now seen corresponding path program 1 times [2019-10-03 02:59:09,300 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:09,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:09,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:09,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:09,304 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:09,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:09,462 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-03 02:59:09,462 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:09,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:59:09,463 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:09,463 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:59:09,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:59:09,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:59:09,465 INFO L87 Difference]: Start difference. First operand 235 states and 267 transitions. Second operand 7 states. [2019-10-03 02:59:10,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:10,168 INFO L93 Difference]: Finished difference Result 253 states and 293 transitions. [2019-10-03 02:59:10,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-03 02:59:10,168 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2019-10-03 02:59:10,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:10,172 INFO L225 Difference]: With dead ends: 253 [2019-10-03 02:59:10,172 INFO L226 Difference]: Without dead ends: 253 [2019-10-03 02:59:10,173 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-03 02:59:10,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2019-10-03 02:59:10,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 234. [2019-10-03 02:59:10,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2019-10-03 02:59:10,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 264 transitions. [2019-10-03 02:59:10,189 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 264 transitions. Word has length 92 [2019-10-03 02:59:10,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:10,190 INFO L475 AbstractCegarLoop]: Abstraction has 234 states and 264 transitions. [2019-10-03 02:59:10,190 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:59:10,190 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 264 transitions. [2019-10-03 02:59:10,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-03 02:59:10,192 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:10,194 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:10,195 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:10,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:10,195 INFO L82 PathProgramCache]: Analyzing trace with hash -357754488, now seen corresponding path program 1 times [2019-10-03 02:59:10,195 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:10,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:10,198 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:10,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:10,198 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:10,296 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:10,296 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:10,296 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:59:10,297 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:10,298 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:59:10,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:59:10,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:59:10,299 INFO L87 Difference]: Start difference. First operand 234 states and 264 transitions. Second operand 6 states. [2019-10-03 02:59:10,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:10,335 INFO L93 Difference]: Finished difference Result 241 states and 271 transitions. [2019-10-03 02:59:10,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:59:10,337 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 108 [2019-10-03 02:59:10,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:10,345 INFO L225 Difference]: With dead ends: 241 [2019-10-03 02:59:10,345 INFO L226 Difference]: Without dead ends: 241 [2019-10-03 02:59:10,346 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:59:10,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2019-10-03 02:59:10,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 239. [2019-10-03 02:59:10,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2019-10-03 02:59:10,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 269 transitions. [2019-10-03 02:59:10,370 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 269 transitions. Word has length 108 [2019-10-03 02:59:10,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:10,370 INFO L475 AbstractCegarLoop]: Abstraction has 239 states and 269 transitions. [2019-10-03 02:59:10,370 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:59:10,371 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 269 transitions. [2019-10-03 02:59:10,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-03 02:59:10,374 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:10,375 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:10,376 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:10,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:10,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1570518214, now seen corresponding path program 1 times [2019-10-03 02:59:10,376 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:10,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:10,379 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:10,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:10,379 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:10,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:10,484 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:10,484 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:10,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-03 02:59:10,485 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:10,485 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-03 02:59:10,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-03 02:59:10,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:59:10,486 INFO L87 Difference]: Start difference. First operand 239 states and 269 transitions. Second operand 8 states. [2019-10-03 02:59:10,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:10,517 INFO L93 Difference]: Finished difference Result 246 states and 276 transitions. [2019-10-03 02:59:10,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:59:10,518 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 108 [2019-10-03 02:59:10,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:10,520 INFO L225 Difference]: With dead ends: 246 [2019-10-03 02:59:10,520 INFO L226 Difference]: Without dead ends: 246 [2019-10-03 02:59:10,520 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:59:10,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2019-10-03 02:59:10,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 243. [2019-10-03 02:59:10,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2019-10-03 02:59:10,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 273 transitions. [2019-10-03 02:59:10,532 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 273 transitions. Word has length 108 [2019-10-03 02:59:10,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:10,533 INFO L475 AbstractCegarLoop]: Abstraction has 243 states and 273 transitions. [2019-10-03 02:59:10,533 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-03 02:59:10,533 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 273 transitions. [2019-10-03 02:59:10,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-03 02:59:10,535 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:10,535 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:10,535 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:10,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:10,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1329978085, now seen corresponding path program 1 times [2019-10-03 02:59:10,536 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:10,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:10,538 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:10,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:10,539 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:10,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:10,614 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:10,614 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:10,614 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-03 02:59:10,615 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:10,615 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 02:59:10,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 02:59:10,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:59:10,616 INFO L87 Difference]: Start difference. First operand 243 states and 273 transitions. Second operand 4 states. [2019-10-03 02:59:10,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:10,845 INFO L93 Difference]: Finished difference Result 480 states and 561 transitions. [2019-10-03 02:59:10,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-03 02:59:10,846 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 108 [2019-10-03 02:59:10,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:10,850 INFO L225 Difference]: With dead ends: 480 [2019-10-03 02:59:10,850 INFO L226 Difference]: Without dead ends: 480 [2019-10-03 02:59:10,851 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:59:10,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2019-10-03 02:59:10,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 471. [2019-10-03 02:59:10,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 471 states. [2019-10-03 02:59:10,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 544 transitions. [2019-10-03 02:59:10,889 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 544 transitions. Word has length 108 [2019-10-03 02:59:10,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:10,890 INFO L475 AbstractCegarLoop]: Abstraction has 471 states and 544 transitions. [2019-10-03 02:59:10,890 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 02:59:10,890 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 544 transitions. [2019-10-03 02:59:10,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-03 02:59:10,895 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:10,895 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:10,895 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:10,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:10,896 INFO L82 PathProgramCache]: Analyzing trace with hash 825673247, now seen corresponding path program 1 times [2019-10-03 02:59:10,896 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:10,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:10,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:10,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:10,899 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:10,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:11,105 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:11,106 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:11,106 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-03 02:59:11,106 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:11,107 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-03 02:59:11,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-03 02:59:11,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:59:11,107 INFO L87 Difference]: Start difference. First operand 471 states and 544 transitions. Second operand 9 states. [2019-10-03 02:59:12,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:12,332 INFO L93 Difference]: Finished difference Result 873 states and 1010 transitions. [2019-10-03 02:59:12,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-03 02:59:12,333 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 112 [2019-10-03 02:59:12,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:12,340 INFO L225 Difference]: With dead ends: 873 [2019-10-03 02:59:12,340 INFO L226 Difference]: Without dead ends: 873 [2019-10-03 02:59:12,341 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2019-10-03 02:59:12,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2019-10-03 02:59:12,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 792. [2019-10-03 02:59:12,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 792 states. [2019-10-03 02:59:12,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 904 transitions. [2019-10-03 02:59:12,377 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 904 transitions. Word has length 112 [2019-10-03 02:59:12,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:12,377 INFO L475 AbstractCegarLoop]: Abstraction has 792 states and 904 transitions. [2019-10-03 02:59:12,378 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-03 02:59:12,378 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 904 transitions. [2019-10-03 02:59:12,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-10-03 02:59:12,380 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:12,381 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:12,381 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:12,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:12,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1258980138, now seen corresponding path program 1 times [2019-10-03 02:59:12,381 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:12,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:12,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:12,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:12,384 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:12,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:12,556 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-03 02:59:12,556 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:59:12,557 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:59:12,559 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 173 with the following transitions: [2019-10-03 02:59:12,562 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [83], [99], [103], [104], [105], [108], [110], [116], [120], [123], [124], [125], [134], [138], [142], [145], [148], [150], [156], [158], [164], [167], [186], [188], [193], [196], [197], [198], [199], [201], [206], [208], [209], [213], [216], [220], [226], [253], [254], [257], [261], [266], [270], [271], [274], [275], [276], [278], [279], [280], [282], [285], [287], [290], [293], [302], [304], [305], [308], [310], [313], [320], [323], [324], [325], [349], [351], [352], [370], [371], [421], [422], [432], [440], [441], [442], [443], [444], [445], [446], [447], [448], [480], [481], [484], [485], [486], [487], [488], [489], [494], [495], [498], [499], [500], [501], [502], [503], [504], [505], [506], [507], [508], [509], [510], [511], [516], [517], [518], [519], [520], [521], [522], [524], [525], [526], [527], [530], [531], [534], [535], [536], [538], [539], [544], [545], [546] [2019-10-03 02:59:12,615 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:59:12,615 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:59:12,701 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:59:12,702 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 71 root evaluator evaluations with a maximum evaluation depth of 0. Performed 71 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-10-03 02:59:12,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:12,707 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:59:12,768 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:59:12,768 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:59:12,773 INFO L420 sIntCurrentIteration]: We unified 171 AI predicates to 171 [2019-10-03 02:59:12,773 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:59:12,774 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:59:12,775 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-10-03 02:59:12,775 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:12,775 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:59:12,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:59:12,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:59:12,776 INFO L87 Difference]: Start difference. First operand 792 states and 904 transitions. Second operand 2 states. [2019-10-03 02:59:12,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:12,777 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:59:12,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:59:12,777 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 172 [2019-10-03 02:59:12,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:12,777 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:59:12,777 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:59:12,778 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:59:12,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:59:12,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:59:12,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:59:12,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:59:12,779 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 172 [2019-10-03 02:59:12,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:12,779 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:59:12,779 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:59:12,779 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:59:12,779 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:59:12,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:59:12 BoogieIcfgContainer [2019-10-03 02:59:12,785 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:59:12,788 INFO L168 Benchmark]: Toolchain (without parser) took 7995.83 ms. Allocated memory was 134.2 MB in the beginning and 312.5 MB in the end (delta: 178.3 MB). Free memory was 89.5 MB in the beginning and 113.1 MB in the end (delta: -23.6 MB). Peak memory consumption was 154.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:12,789 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 134.2 MB. Free memory was 108.5 MB in the beginning and 108.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:59:12,790 INFO L168 Benchmark]: CACSL2BoogieTranslator took 726.37 ms. Allocated memory was 134.2 MB in the beginning and 201.3 MB in the end (delta: 67.1 MB). Free memory was 89.3 MB in the beginning and 166.3 MB in the end (delta: -77.0 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:12,790 INFO L168 Benchmark]: Boogie Preprocessor took 87.91 ms. Allocated memory is still 201.3 MB. Free memory was 166.3 MB in the beginning and 161.9 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:12,792 INFO L168 Benchmark]: RCFGBuilder took 1202.35 ms. Allocated memory was 201.3 MB in the beginning and 228.1 MB in the end (delta: 26.7 MB). Free memory was 161.9 MB in the beginning and 190.3 MB in the end (delta: -28.4 MB). Peak memory consumption was 87.3 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:12,793 INFO L168 Benchmark]: TraceAbstraction took 5973.19 ms. Allocated memory was 228.1 MB in the beginning and 312.5 MB in the end (delta: 84.4 MB). Free memory was 190.3 MB in the beginning and 113.1 MB in the end (delta: 77.2 MB). Peak memory consumption was 161.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:12,797 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 134.2 MB. Free memory was 108.5 MB in the beginning and 108.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 726.37 ms. Allocated memory was 134.2 MB in the beginning and 201.3 MB in the end (delta: 67.1 MB). Free memory was 89.3 MB in the beginning and 166.3 MB in the end (delta: -77.0 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.91 ms. Allocated memory is still 201.3 MB. Free memory was 166.3 MB in the beginning and 161.9 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1202.35 ms. Allocated memory was 201.3 MB in the beginning and 228.1 MB in the end (delta: 26.7 MB). Free memory was 161.9 MB in the beginning and 190.3 MB in the end (delta: -28.4 MB). Peak memory consumption was 87.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5973.19 ms. Allocated memory was 228.1 MB in the beginning and 312.5 MB in the end (delta: 84.4 MB). Free memory was 190.3 MB in the beginning and 113.1 MB in the end (delta: 77.2 MB). Peak memory consumption was 161.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 700]: 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 42 procedures, 246 locations, 1 error locations. SAFE Result, 5.9s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 3.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1619 SDtfs, 1264 SDslu, 3179 SDs, 0 SdLazy, 1860 SolverSat, 501 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 276 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=792occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.8128654970760234 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 133 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 962 NumberOfCodeBlocks, 962 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 952 ConstructedInterpolants, 0 QuantifiedInterpolants, 165199 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 71/78 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...