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_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:08:26,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:08:26,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:08:26,757 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:08:26,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:08:26,758 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:08:26,760 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:08:26,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:08:26,764 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:08:26,765 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:08:26,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:08:26,767 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:08:26,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:08:26,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:08:26,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:08:26,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:08:26,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:08:26,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:08:26,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:08:26,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:08:26,779 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:08:26,781 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:08:26,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:08:26,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:08:26,786 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:08:26,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:08:26,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:08:26,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:08:26,789 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:08:26,790 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:08:26,790 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:08:26,791 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:08:26,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:08:26,792 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:08:26,794 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:08:26,794 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:08:26,795 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:08:26,795 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:08:26,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:08:26,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:08:26,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:08:26,798 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 17:08:26,814 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:08:26,814 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:08:26,814 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:08:26,815 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:08:26,815 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:08:26,815 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:08:26,816 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:08:26,816 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:08:26,816 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:08:26,816 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:08:26,817 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:08:26,817 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:08:26,817 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:08:26,818 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:08:26,818 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:08:26,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:08:26,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:08:26,818 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:08:26,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:08:26,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:08:26,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:08:26,819 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:08:26,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:08:26,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:08:26,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:08:26,820 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:08:26,820 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:08:26,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:08:26,821 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:08:26,821 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:08:26,858 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:08:26,872 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:08:26,875 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:08:26,877 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:08:26,877 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:08:26,878 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product49.cil.c [2019-09-16 17:08:26,957 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56530d044/135eef5a90bf41968b6c53510196d36a/FLAGf38acac8f [2019-09-16 17:08:27,540 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:08:27,541 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product49.cil.c [2019-09-16 17:08:27,564 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56530d044/135eef5a90bf41968b6c53510196d36a/FLAGf38acac8f [2019-09-16 17:08:27,807 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56530d044/135eef5a90bf41968b6c53510196d36a [2019-09-16 17:08:27,817 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:08:27,818 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:08:27,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:27,819 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:08:27,823 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:08:27,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:27" (1/1) ... [2019-09-16 17:08:27,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dfff92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:27, skipping insertion in model container [2019-09-16 17:08:27,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:27" (1/1) ... [2019-09-16 17:08:27,838 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:08:27,897 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:08:28,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:28,359 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:08:28,484 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:28,524 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:08:28,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:28 WrapperNode [2019-09-16 17:08:28,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:28,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:08:28,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:08:28,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:08:28,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:28" (1/1) ... [2019-09-16 17:08:28,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:28" (1/1) ... [2019-09-16 17:08:28,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:28" (1/1) ... [2019-09-16 17:08:28,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:28" (1/1) ... [2019-09-16 17:08:28,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:28" (1/1) ... [2019-09-16 17:08:28,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:28" (1/1) ... [2019-09-16 17:08:28,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:28" (1/1) ... [2019-09-16 17:08:28,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:08:28,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:08:28,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:08:28,641 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:08:28,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:28" (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 17:08:28,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:08:28,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:08:28,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:28,730 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:08:28,730 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:08:28,730 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:08:28,730 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:08:28,731 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:08:28,731 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:08:28,731 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:08:28,732 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:08:28,732 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:08:28,732 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:08:28,733 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:08:28,733 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-16 17:08:28,734 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-16 17:08:28,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-16 17:08:28,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-16 17:08:28,735 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:08:28,736 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:08:28,736 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-16 17:08:28,736 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-16 17:08:28,736 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:08:28,736 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:08:28,736 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:08:28,737 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:08:28,737 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:08:28,738 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:08:28,738 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-16 17:08:28,738 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-16 17:08:28,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:28,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:28,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:28,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:08:28,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:08:28,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:08:28,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:08:28,739 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:08:28,739 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:08:28,740 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:08:28,740 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:08:28,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:08:28,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:08:28,741 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:08:28,741 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:08:28,741 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:08:28,741 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:08:28,741 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:08:28,742 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:08:28,742 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:08:28,742 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:08:28,742 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-16 17:08:28,742 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:08:28,742 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:08:28,742 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:08:28,743 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:08:28,743 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:08:28,743 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:08:28,743 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:08:28,743 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:08:28,743 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:08:28,743 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:08:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-16 17:08:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-16 17:08:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:08:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:08:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:08:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-16 17:08:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:08:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:08:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:08:28,746 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-16 17:08:28,746 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-16 17:08:28,747 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-16 17:08:28,747 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-16 17:08:28,747 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:08:28,747 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:08:28,747 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:08:28,748 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:08:28,748 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:28,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:08:28,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:08:28,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:08:28,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:08:28,749 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:28,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:08:28,750 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:08:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:08:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:08:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:08:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:08:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:08:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:08:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:08:29,836 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:08:29,837 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:08:29,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:29 BoogieIcfgContainer [2019-09-16 17:08:29,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:08:29,840 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:08:29,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:08:29,844 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:08:29,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:08:27" (1/3) ... [2019-09-16 17:08:29,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f03d49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:29, skipping insertion in model container [2019-09-16 17:08:29,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:28" (2/3) ... [2019-09-16 17:08:29,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f03d49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:29, skipping insertion in model container [2019-09-16 17:08:29,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:29" (3/3) ... [2019-09-16 17:08:29,849 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product49.cil.c [2019-09-16 17:08:29,860 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:08:29,872 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:08:29,890 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:08:29,921 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:08:29,922 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:08:29,922 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:08:29,922 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:08:29,922 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:08:29,923 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:08:29,923 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:08:29,924 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:08:29,956 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2019-09-16 17:08:29,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-16 17:08:29,973 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:29,976 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 17:08:29,979 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:29,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:29,984 INFO L82 PathProgramCache]: Analyzing trace with hash -154299971, now seen corresponding path program 1 times [2019-09-16 17:08:29,987 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:30,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:30,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:30,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:30,040 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:30,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:30,378 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 17:08:30,380 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:30,381 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:08:30,382 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:30,387 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:08:30,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:08:30,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:30,405 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 2 states. [2019-09-16 17:08:30,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:30,435 INFO L93 Difference]: Finished difference Result 144 states and 168 transitions. [2019-09-16 17:08:30,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:08:30,437 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-16 17:08:30,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:30,450 INFO L225 Difference]: With dead ends: 144 [2019-09-16 17:08:30,450 INFO L226 Difference]: Without dead ends: 133 [2019-09-16 17:08:30,452 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 17:08:30,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-09-16 17:08:30,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2019-09-16 17:08:30,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-09-16 17:08:30,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 156 transitions. [2019-09-16 17:08:30,531 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 156 transitions. Word has length 51 [2019-09-16 17:08:30,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:30,531 INFO L475 AbstractCegarLoop]: Abstraction has 133 states and 156 transitions. [2019-09-16 17:08:30,531 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:08:30,532 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 156 transitions. [2019-09-16 17:08:30,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-16 17:08:30,540 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:30,540 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 17:08:30,541 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:30,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:30,543 INFO L82 PathProgramCache]: Analyzing trace with hash 401693438, now seen corresponding path program 1 times [2019-09-16 17:08:30,543 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:30,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:30,547 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:30,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:30,547 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:30,641 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 17:08:30,642 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:30,642 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:08:30,642 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:30,643 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:08:30,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:08:30,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:08:30,645 INFO L87 Difference]: Start difference. First operand 133 states and 156 transitions. Second operand 3 states. [2019-09-16 17:08:30,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:30,672 INFO L93 Difference]: Finished difference Result 124 states and 144 transitions. [2019-09-16 17:08:30,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:08:30,673 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-16 17:08:30,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:30,677 INFO L225 Difference]: With dead ends: 124 [2019-09-16 17:08:30,677 INFO L226 Difference]: Without dead ends: 124 [2019-09-16 17:08:30,678 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 17:08:30,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-09-16 17:08:30,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2019-09-16 17:08:30,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-09-16 17:08:30,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 144 transitions. [2019-09-16 17:08:30,700 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 144 transitions. Word has length 52 [2019-09-16 17:08:30,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:30,704 INFO L475 AbstractCegarLoop]: Abstraction has 124 states and 144 transitions. [2019-09-16 17:08:30,704 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:08:30,704 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 144 transitions. [2019-09-16 17:08:30,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-16 17:08:30,706 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:30,706 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 17:08:30,707 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:30,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:30,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1332267464, now seen corresponding path program 1 times [2019-09-16 17:08:30,707 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:30,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:30,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:30,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:30,710 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:30,857 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 17:08:30,858 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:30,858 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:08:30,858 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:30,859 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:08:30,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:08:30,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:30,860 INFO L87 Difference]: Start difference. First operand 124 states and 144 transitions. Second operand 7 states. [2019-09-16 17:08:31,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:31,160 INFO L93 Difference]: Finished difference Result 124 states and 143 transitions. [2019-09-16 17:08:31,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:08:31,161 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-09-16 17:08:31,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:31,164 INFO L225 Difference]: With dead ends: 124 [2019-09-16 17:08:31,164 INFO L226 Difference]: Without dead ends: 124 [2019-09-16 17:08:31,165 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 17:08:31,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-09-16 17:08:31,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2019-09-16 17:08:31,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-09-16 17:08:31,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 143 transitions. [2019-09-16 17:08:31,175 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 143 transitions. Word has length 56 [2019-09-16 17:08:31,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:31,176 INFO L475 AbstractCegarLoop]: Abstraction has 124 states and 143 transitions. [2019-09-16 17:08:31,176 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:08:31,176 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 143 transitions. [2019-09-16 17:08:31,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-16 17:08:31,179 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:31,179 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, 1] [2019-09-16 17:08:31,179 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:31,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:31,180 INFO L82 PathProgramCache]: Analyzing trace with hash -877153324, now seen corresponding path program 1 times [2019-09-16 17:08:31,180 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:31,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:31,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:31,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:31,184 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:31,335 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 17:08:31,335 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:31,335 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:08:31,335 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:31,337 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:08:31,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:08:31,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:08:31,337 INFO L87 Difference]: Start difference. First operand 124 states and 143 transitions. Second operand 5 states. [2019-09-16 17:08:31,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:31,871 INFO L93 Difference]: Finished difference Result 220 states and 256 transitions. [2019-09-16 17:08:31,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:08:31,872 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2019-09-16 17:08:31,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:31,877 INFO L225 Difference]: With dead ends: 220 [2019-09-16 17:08:31,878 INFO L226 Difference]: Without dead ends: 220 [2019-09-16 17:08:31,878 INFO L636 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 [2019-09-16 17:08:31,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2019-09-16 17:08:31,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 202. [2019-09-16 17:08:31,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2019-09-16 17:08:31,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 232 transitions. [2019-09-16 17:08:31,923 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 232 transitions. Word has length 69 [2019-09-16 17:08:31,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:31,923 INFO L475 AbstractCegarLoop]: Abstraction has 202 states and 232 transitions. [2019-09-16 17:08:31,924 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:08:31,924 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 232 transitions. [2019-09-16 17:08:31,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-16 17:08:31,927 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:31,928 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:31,928 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:31,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:31,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1061705923, now seen corresponding path program 1 times [2019-09-16 17:08:31,932 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:31,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:31,937 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:31,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:31,938 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:32,106 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 17:08:32,107 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:32,107 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:08:32,107 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:32,109 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:08:32,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:08:32,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:08:32,110 INFO L87 Difference]: Start difference. First operand 202 states and 232 transitions. Second operand 6 states. [2019-09-16 17:08:32,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:32,304 INFO L93 Difference]: Finished difference Result 358 states and 411 transitions. [2019-09-16 17:08:32,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:08:32,305 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2019-09-16 17:08:32,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:32,309 INFO L225 Difference]: With dead ends: 358 [2019-09-16 17:08:32,310 INFO L226 Difference]: Without dead ends: 358 [2019-09-16 17:08:32,310 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 17:08:32,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2019-09-16 17:08:32,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 352. [2019-09-16 17:08:32,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 352 states. [2019-09-16 17:08:32,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 404 transitions. [2019-09-16 17:08:32,344 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 404 transitions. Word has length 83 [2019-09-16 17:08:32,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:32,344 INFO L475 AbstractCegarLoop]: Abstraction has 352 states and 404 transitions. [2019-09-16 17:08:32,345 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:08:32,345 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 404 transitions. [2019-09-16 17:08:32,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-09-16 17:08:32,346 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:32,347 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:32,347 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:32,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:32,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1506381919, now seen corresponding path program 1 times [2019-09-16 17:08:32,347 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:32,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:32,350 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:32,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:32,350 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:32,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:32,448 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 17:08:32,449 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:32,449 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:08:32,449 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:32,450 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:08:32,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:08:32,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:32,450 INFO L87 Difference]: Start difference. First operand 352 states and 404 transitions. Second operand 7 states. [2019-09-16 17:08:33,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:33,141 INFO L93 Difference]: Finished difference Result 381 states and 449 transitions. [2019-09-16 17:08:33,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-16 17:08:33,141 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2019-09-16 17:08:33,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:33,146 INFO L225 Difference]: With dead ends: 381 [2019-09-16 17:08:33,146 INFO L226 Difference]: Without dead ends: 381 [2019-09-16 17:08:33,147 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-16 17:08:33,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2019-09-16 17:08:33,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 351. [2019-09-16 17:08:33,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2019-09-16 17:08:33,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 401 transitions. [2019-09-16 17:08:33,166 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 401 transitions. Word has length 87 [2019-09-16 17:08:33,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:33,167 INFO L475 AbstractCegarLoop]: Abstraction has 351 states and 401 transitions. [2019-09-16 17:08:33,167 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:08:33,167 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 401 transitions. [2019-09-16 17:08:33,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-16 17:08:33,169 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:33,169 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:33,169 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:33,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:33,170 INFO L82 PathProgramCache]: Analyzing trace with hash 1049604760, now seen corresponding path program 1 times [2019-09-16 17:08:33,170 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:33,172 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:33,173 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:33,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:33,173 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:33,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:33,251 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 17:08:33,252 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:33,252 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:08:33,252 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:33,253 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:08:33,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:08:33,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:08:33,255 INFO L87 Difference]: Start difference. First operand 351 states and 401 transitions. Second operand 6 states. [2019-09-16 17:08:33,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:33,283 INFO L93 Difference]: Finished difference Result 361 states and 411 transitions. [2019-09-16 17:08:33,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:08:33,283 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2019-09-16 17:08:33,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:33,286 INFO L225 Difference]: With dead ends: 361 [2019-09-16 17:08:33,286 INFO L226 Difference]: Without dead ends: 361 [2019-09-16 17:08:33,287 INFO L636 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 [2019-09-16 17:08:33,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2019-09-16 17:08:33,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2019-09-16 17:08:33,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2019-09-16 17:08:33,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 411 transitions. [2019-09-16 17:08:33,302 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 411 transitions. Word has length 88 [2019-09-16 17:08:33,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:33,303 INFO L475 AbstractCegarLoop]: Abstraction has 361 states and 411 transitions. [2019-09-16 17:08:33,303 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:08:33,303 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 411 transitions. [2019-09-16 17:08:33,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-16 17:08:33,305 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:33,305 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:33,305 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:33,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:33,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1751204634, now seen corresponding path program 1 times [2019-09-16 17:08:33,306 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:33,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:33,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:33,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:33,308 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:33,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:33,387 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 17:08:33,387 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:33,387 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-16 17:08:33,387 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:33,388 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-16 17:08:33,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-16 17:08:33,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:08:33,389 INFO L87 Difference]: Start difference. First operand 361 states and 411 transitions. Second operand 8 states. [2019-09-16 17:08:33,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:33,419 INFO L93 Difference]: Finished difference Result 375 states and 425 transitions. [2019-09-16 17:08:33,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:08:33,420 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 88 [2019-09-16 17:08:33,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:33,422 INFO L225 Difference]: With dead ends: 375 [2019-09-16 17:08:33,423 INFO L226 Difference]: Without dead ends: 375 [2019-09-16 17:08:33,423 INFO L636 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 [2019-09-16 17:08:33,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2019-09-16 17:08:33,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 369. [2019-09-16 17:08:33,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2019-09-16 17:08:33,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 419 transitions. [2019-09-16 17:08:33,437 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 419 transitions. Word has length 88 [2019-09-16 17:08:33,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:33,438 INFO L475 AbstractCegarLoop]: Abstraction has 369 states and 419 transitions. [2019-09-16 17:08:33,438 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-16 17:08:33,438 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 419 transitions. [2019-09-16 17:08:33,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-16 17:08:33,440 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:33,440 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:33,440 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:33,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:33,441 INFO L82 PathProgramCache]: Analyzing trace with hash -818281765, now seen corresponding path program 1 times [2019-09-16 17:08:33,441 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:33,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:33,443 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:33,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:33,444 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:33,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:33,541 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 17:08:33,542 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:33,542 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:08:33,542 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:33,542 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:08:33,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:08:33,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:08:33,543 INFO L87 Difference]: Start difference. First operand 369 states and 419 transitions. Second operand 4 states. [2019-09-16 17:08:33,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:33,724 INFO L93 Difference]: Finished difference Result 765 states and 911 transitions. [2019-09-16 17:08:33,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 17:08:33,725 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2019-09-16 17:08:33,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:33,730 INFO L225 Difference]: With dead ends: 765 [2019-09-16 17:08:33,730 INFO L226 Difference]: Without dead ends: 765 [2019-09-16 17:08:33,730 INFO L636 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 [2019-09-16 17:08:33,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2019-09-16 17:08:33,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 493. [2019-09-16 17:08:33,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 493 states. [2019-09-16 17:08:33,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 556 transitions. [2019-09-16 17:08:33,755 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 556 transitions. Word has length 88 [2019-09-16 17:08:33,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:33,755 INFO L475 AbstractCegarLoop]: Abstraction has 493 states and 556 transitions. [2019-09-16 17:08:33,755 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:08:33,755 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 556 transitions. [2019-09-16 17:08:33,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-09-16 17:08:33,757 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:33,758 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, 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 17:08:33,758 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:33,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:33,758 INFO L82 PathProgramCache]: Analyzing trace with hash -470187979, now seen corresponding path program 1 times [2019-09-16 17:08:33,758 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:33,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:33,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:33,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:33,761 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:33,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:33,812 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 17:08:33,813 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:33,813 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:08:33,813 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:33,813 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:08:33,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:08:33,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:08:33,814 INFO L87 Difference]: Start difference. First operand 493 states and 556 transitions. Second operand 3 states. [2019-09-16 17:08:33,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:33,840 INFO L93 Difference]: Finished difference Result 761 states and 872 transitions. [2019-09-16 17:08:33,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:08:33,841 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 92 [2019-09-16 17:08:33,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:33,845 INFO L225 Difference]: With dead ends: 761 [2019-09-16 17:08:33,845 INFO L226 Difference]: Without dead ends: 761 [2019-09-16 17:08:33,845 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 17:08:33,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2019-09-16 17:08:33,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 634. [2019-09-16 17:08:33,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2019-09-16 17:08:33,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 725 transitions. [2019-09-16 17:08:33,867 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 725 transitions. Word has length 92 [2019-09-16 17:08:33,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:33,867 INFO L475 AbstractCegarLoop]: Abstraction has 634 states and 725 transitions. [2019-09-16 17:08:33,867 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:08:33,867 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 725 transitions. [2019-09-16 17:08:33,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-09-16 17:08:33,871 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:33,871 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-16 17:08:33,871 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:33,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:33,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1507801122, now seen corresponding path program 1 times [2019-09-16 17:08:33,872 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:33,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:33,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:33,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:33,874 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:33,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:33,957 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 21 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-09-16 17:08:33,957 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 17:08:33,957 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-16 17:08:33,958 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 151 with the following transitions: [2019-09-16 17:08:33,961 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [94], [110], [114], [115], [116], [131], [134], [136], [145], [149], [153], [156], [159], [161], [164], [167], [169], [172], [189], [191], [194], [196], [199], [202], [205], [213], [214], [215], [225], [226], [229], [231], [236], [238], [239], [245], [249], [255], [282], [283], [291], [294], [296], [299], [309], [312], [316], [317], [320], [321], [322], [416], [417], [422], [424], [427], [435], [436], [437], [438], [439], [440], [441], [442], [443], [483], [484], [485], [486], [487], [488], [489], [490], [493], [494], [495], [496], [497], [499], [500], [503], [504], [505], [506], [511], [512], [513], [514], [521], [522], [523], [531], [532], [533] [2019-09-16 17:08:34,002 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-16 17:08:34,003 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-16 17:08:34,079 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-16 17:08:34,080 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 70 root evaluator evaluations with a maximum evaluation depth of 0. Performed 70 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-09-16 17:08:34,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:34,084 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-16 17:08:34,138 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-16 17:08:34,138 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-16 17:08:34,143 INFO L420 sIntCurrentIteration]: We unified 149 AI predicates to 149 [2019-09-16 17:08:34,143 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-16 17:08:34,144 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-16 17:08:34,144 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-09-16 17:08:34,145 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:34,145 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:08:34,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:08:34,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:34,146 INFO L87 Difference]: Start difference. First operand 634 states and 725 transitions. Second operand 2 states. [2019-09-16 17:08:34,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:34,146 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-16 17:08:34,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:08:34,147 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 150 [2019-09-16 17:08:34,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:34,147 INFO L225 Difference]: With dead ends: 2 [2019-09-16 17:08:34,147 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:08:34,148 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 149 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 17:08:34,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:08:34,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:08:34,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:08:34,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:08:34,149 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 150 [2019-09-16 17:08:34,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:34,149 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:08:34,149 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:08:34,149 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:08:34,149 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:08:34,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:08:34 BoogieIcfgContainer [2019-09-16 17:08:34,155 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:08:34,158 INFO L168 Benchmark]: Toolchain (without parser) took 6338.75 ms. Allocated memory was 133.7 MB in the beginning and 316.7 MB in the end (delta: 183.0 MB). Free memory was 88.4 MB in the beginning and 132.8 MB in the end (delta: -44.4 MB). Peak memory consumption was 138.5 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:34,158 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 133.7 MB. Free memory was 108.0 MB in the beginning and 107.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:08:34,159 INFO L168 Benchmark]: CACSL2BoogieTranslator took 706.30 ms. Allocated memory was 133.7 MB in the beginning and 200.8 MB in the end (delta: 67.1 MB). Free memory was 88.2 MB in the beginning and 165.3 MB in the end (delta: -77.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:34,160 INFO L168 Benchmark]: Boogie Preprocessor took 113.87 ms. Allocated memory is still 200.8 MB. Free memory was 165.3 MB in the beginning and 161.0 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:34,161 INFO L168 Benchmark]: RCFGBuilder took 1198.99 ms. Allocated memory was 200.8 MB in the beginning and 226.5 MB in the end (delta: 25.7 MB). Free memory was 161.0 MB in the beginning and 192.7 MB in the end (delta: -31.8 MB). Peak memory consumption was 88.1 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:34,162 INFO L168 Benchmark]: TraceAbstraction took 4314.72 ms. Allocated memory was 226.5 MB in the beginning and 316.7 MB in the end (delta: 90.2 MB). Free memory was 192.7 MB in the beginning and 132.8 MB in the end (delta: 59.9 MB). Peak memory consumption was 150.1 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:34,166 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 133.7 MB. Free memory was 108.0 MB in the beginning and 107.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 706.30 ms. Allocated memory was 133.7 MB in the beginning and 200.8 MB in the end (delta: 67.1 MB). Free memory was 88.2 MB in the beginning and 165.3 MB in the end (delta: -77.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.87 ms. Allocated memory is still 200.8 MB. Free memory was 165.3 MB in the beginning and 161.0 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1198.99 ms. Allocated memory was 200.8 MB in the beginning and 226.5 MB in the end (delta: 25.7 MB). Free memory was 161.0 MB in the beginning and 192.7 MB in the end (delta: -31.8 MB). Peak memory consumption was 88.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4314.72 ms. Allocated memory was 226.5 MB in the beginning and 316.7 MB in the end (delta: 90.2 MB). Free memory was 192.7 MB in the beginning and 132.8 MB in the end (delta: 59.9 MB). Peak memory consumption was 150.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 930]: 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 41 procedures, 240 locations, 1 error locations. SAFE Result, 4.2s OverallTime, 11 OverallIterations, 2 TraceHistogramMax, 2.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1544 SDtfs, 905 SDslu, 3017 SDs, 0 SdLazy, 996 SolverSat, 226 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 244 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=634occurred in iteration=10, 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, 0.87248322147651 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 459 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 904 NumberOfCodeBlocks, 904 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 893 ConstructedInterpolants, 0 QuantifiedInterpolants, 127233 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 48/54 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...