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_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:10:00,604 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:10:00,606 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:10:00,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:10:00,619 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:10:00,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:10:00,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:10:00,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:10:00,628 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:10:00,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:10:00,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:10:00,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:10:00,632 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:10:00,633 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:10:00,634 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:10:00,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:10:00,636 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:10:00,637 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:10:00,639 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:10:00,641 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:10:00,643 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:10:00,644 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:10:00,646 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:10:00,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:10:00,650 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:10:00,650 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:10:00,651 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:10:00,652 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:10:00,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:10:00,653 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:10:00,654 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:10:00,654 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:10:00,655 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:10:00,656 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:10:00,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:10:00,658 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:10:00,658 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:10:00,659 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:10:00,659 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:10:00,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:10:00,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:10:00,662 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 17:10:00,679 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:10:00,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:10:00,680 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:10:00,680 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:10:00,681 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:10:00,681 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:10:00,681 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:10:00,681 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:10:00,682 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:10:00,682 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:10:00,682 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:10:00,683 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:10:00,683 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:10:00,683 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:10:00,683 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:10:00,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:10:00,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:10:00,684 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:10:00,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:10:00,684 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:10:00,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:10:00,685 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:10:00,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:10:00,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:10:00,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:10:00,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:10:00,686 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:10:00,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:10:00,686 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:10:00,686 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:10:00,716 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:10:00,730 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:10:00,733 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:10:00,735 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:10:00,735 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:10:00,736 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product62.cil.c [2019-09-16 17:10:00,815 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/144e733e4/9c79b809379647c2bfcf3f54458a352e/FLAG13aae3859 [2019-09-16 17:10:01,404 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:10:01,404 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product62.cil.c [2019-09-16 17:10:01,427 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/144e733e4/9c79b809379647c2bfcf3f54458a352e/FLAG13aae3859 [2019-09-16 17:10:01,750 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/144e733e4/9c79b809379647c2bfcf3f54458a352e [2019-09-16 17:10:01,774 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:10:01,776 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:10:01,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:10:01,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:10:01,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:10:01,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:10:01" (1/1) ... [2019-09-16 17:10:01,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b1e0751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:10:01, skipping insertion in model container [2019-09-16 17:10:01,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:10:01" (1/1) ... [2019-09-16 17:10:01,834 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:10:01,934 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:10:02,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:10:02,458 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:10:02,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:10:02,598 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:10:02,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:10:02 WrapperNode [2019-09-16 17:10:02,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:10:02,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:10:02,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:10:02,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:10:02,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:10:02" (1/1) ... [2019-09-16 17:10:02,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:10:02" (1/1) ... [2019-09-16 17:10:02,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:10:02" (1/1) ... [2019-09-16 17:10:02,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:10:02" (1/1) ... [2019-09-16 17:10:02,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:10:02" (1/1) ... [2019-09-16 17:10:02,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:10:02" (1/1) ... [2019-09-16 17:10:02,684 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:10:02" (1/1) ... [2019-09-16 17:10:02,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:10:02,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:10:02,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:10:02,693 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:10:02,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:10:02" (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 17:10:02,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:10:02,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:10:02,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:10:02,768 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:10:02,769 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-16 17:10:02,769 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-16 17:10:02,769 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-16 17:10:02,769 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:10:02,769 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:10:02,770 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:10:02,770 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:10:02,770 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:10:02,770 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:10:02,770 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:10:02,771 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-16 17:10:02,771 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-16 17:10:02,771 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-16 17:10:02,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-09-16 17:10:02,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-09-16 17:10:02,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-09-16 17:10:02,772 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:10:02,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:10:02,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:10:02,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:10:02,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:10:02,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:10:02,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:10:02,773 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:10:02,773 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:10:02,774 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:10:02,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:10:02,774 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:10:02,774 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:10:02,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-16 17:10:02,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-16 17:10:02,775 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:10:02,775 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:10:02,775 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:10:02,775 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:10:02,775 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:10:02,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:10:02,775 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:10:02,776 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:10:02,776 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:10:02,776 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:10:02,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:10:02,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:10:02,777 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:10:02,777 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:10:02,777 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:10:02,777 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:10:02,777 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-16 17:10:02,777 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-16 17:10:02,777 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:10:02,778 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:10:02,778 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:10:02,778 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:10:02,778 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:10:02,778 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-16 17:10:02,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-09-16 17:10:02,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-09-16 17:10:02,779 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:10:02,779 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-16 17:10:02,779 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-16 17:10:02,779 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-16 17:10:02,780 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-16 17:10:02,780 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-16 17:10:02,780 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:10:02,780 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:10:02,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:10:02,781 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:10:02,781 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:10:02,781 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-09-16 17:10:02,781 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:10:02,781 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:10:02,781 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:10:02,782 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:10:02,782 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:10:02,782 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:10:02,782 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:10:02,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:10:02,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:10:02,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:10:02,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:10:02,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:10:02,783 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:10:02,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:10:02,784 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:10:02,784 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:10:02,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:10:02,786 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:10:02,786 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:10:02,787 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:10:02,787 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:10:02,787 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:10:02,787 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:10:02,787 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:10:02,787 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:10:02,788 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:10:02,788 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:10:02,788 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:10:02,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:10:02,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:10:02,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:10:04,007 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:10:04,013 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:10:04,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:10:04 BoogieIcfgContainer [2019-09-16 17:10:04,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:10:04,016 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:10:04,016 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:10:04,019 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:10:04,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:10:01" (1/3) ... [2019-09-16 17:10:04,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ad908d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:10:04, skipping insertion in model container [2019-09-16 17:10:04,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:10:02" (2/3) ... [2019-09-16 17:10:04,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ad908d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:10:04, skipping insertion in model container [2019-09-16 17:10:04,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:10:04" (3/3) ... [2019-09-16 17:10:04,025 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product62.cil.c [2019-09-16 17:10:04,036 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:10:04,048 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:10:04,067 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:10:04,100 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:10:04,100 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:10:04,101 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:10:04,102 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:10:04,102 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:10:04,103 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:10:04,103 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:10:04,103 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:10:04,133 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states. [2019-09-16 17:10:04,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-16 17:10:04,153 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:10:04,154 INFO L407 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] [2019-09-16 17:10:04,157 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:10:04,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:10:04,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1456889578, now seen corresponding path program 1 times [2019-09-16 17:10:04,166 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:10:04,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:04,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:10:04,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:04,234 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:10:04,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:10:04,566 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:10:04,570 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:10:04,571 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:10:04,571 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:10:04,577 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:10:04,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:10:04,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:10:04,592 INFO L87 Difference]: Start difference. First operand 210 states. Second operand 2 states. [2019-09-16 17:10:04,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:10:04,620 INFO L93 Difference]: Finished difference Result 178 states and 209 transitions. [2019-09-16 17:10:04,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:10:04,622 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-09-16 17:10:04,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:10:04,635 INFO L225 Difference]: With dead ends: 178 [2019-09-16 17:10:04,636 INFO L226 Difference]: Without dead ends: 167 [2019-09-16 17:10:04,637 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 17:10:04,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2019-09-16 17:10:04,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2019-09-16 17:10:04,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2019-09-16 17:10:04,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 197 transitions. [2019-09-16 17:10:04,694 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 197 transitions. Word has length 59 [2019-09-16 17:10:04,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:10:04,694 INFO L475 AbstractCegarLoop]: Abstraction has 167 states and 197 transitions. [2019-09-16 17:10:04,694 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:10:04,695 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 197 transitions. [2019-09-16 17:10:04,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-16 17:10:04,701 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:10:04,701 INFO L407 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] [2019-09-16 17:10:04,702 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:10:04,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:10:04,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1129690590, now seen corresponding path program 1 times [2019-09-16 17:10:04,702 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:10:04,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:04,707 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:10:04,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:04,707 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:10:04,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:10:04,854 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:10:04,854 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:10:04,854 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:10:04,854 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:10:04,857 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:10:04,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:10:04,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:10:04,858 INFO L87 Difference]: Start difference. First operand 167 states and 197 transitions. Second operand 3 states. [2019-09-16 17:10:04,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:10:04,891 INFO L93 Difference]: Finished difference Result 158 states and 185 transitions. [2019-09-16 17:10:04,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:10:04,895 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-09-16 17:10:04,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:10:04,900 INFO L225 Difference]: With dead ends: 158 [2019-09-16 17:10:04,900 INFO L226 Difference]: Without dead ends: 158 [2019-09-16 17:10:04,902 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 17:10:04,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2019-09-16 17:10:04,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2019-09-16 17:10:04,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-09-16 17:10:04,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 185 transitions. [2019-09-16 17:10:04,928 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 185 transitions. Word has length 60 [2019-09-16 17:10:04,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:10:04,929 INFO L475 AbstractCegarLoop]: Abstraction has 158 states and 185 transitions. [2019-09-16 17:10:04,929 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:10:04,929 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 185 transitions. [2019-09-16 17:10:04,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-16 17:10:04,931 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:10:04,932 INFO L407 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] [2019-09-16 17:10:04,932 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:10:04,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:10:04,932 INFO L82 PathProgramCache]: Analyzing trace with hash -651026134, now seen corresponding path program 1 times [2019-09-16 17:10:04,933 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:10:04,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:04,936 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:10:04,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:04,936 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:10:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:10:05,167 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:10:05,168 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:10:05,168 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:10:05,168 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:10:05,170 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:10:05,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:10:05,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:10:05,171 INFO L87 Difference]: Start difference. First operand 158 states and 185 transitions. Second operand 7 states. [2019-09-16 17:10:05,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:10:05,626 INFO L93 Difference]: Finished difference Result 158 states and 184 transitions. [2019-09-16 17:10:05,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:10:05,627 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2019-09-16 17:10:05,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:10:05,634 INFO L225 Difference]: With dead ends: 158 [2019-09-16 17:10:05,634 INFO L226 Difference]: Without dead ends: 158 [2019-09-16 17:10:05,635 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-16 17:10:05,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2019-09-16 17:10:05,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2019-09-16 17:10:05,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-09-16 17:10:05,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 184 transitions. [2019-09-16 17:10:05,665 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 184 transitions. Word has length 65 [2019-09-16 17:10:05,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:10:05,674 INFO L475 AbstractCegarLoop]: Abstraction has 158 states and 184 transitions. [2019-09-16 17:10:05,674 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:10:05,675 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 184 transitions. [2019-09-16 17:10:05,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-16 17:10:05,684 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:10:05,684 INFO L407 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] [2019-09-16 17:10:05,684 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:10:05,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:10:05,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1717523051, now seen corresponding path program 1 times [2019-09-16 17:10:05,685 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:10:05,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:05,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:10:05,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:05,690 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:10:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:10:05,853 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:10:05,854 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:10:05,854 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:10:05,854 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:10:05,854 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:10:05,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:10:05,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:10:05,855 INFO L87 Difference]: Start difference. First operand 158 states and 184 transitions. Second operand 5 states. [2019-09-16 17:10:06,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:10:06,632 INFO L93 Difference]: Finished difference Result 282 states and 324 transitions. [2019-09-16 17:10:06,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:10:06,633 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 83 [2019-09-16 17:10:06,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:10:06,636 INFO L225 Difference]: With dead ends: 282 [2019-09-16 17:10:06,636 INFO L226 Difference]: Without dead ends: 282 [2019-09-16 17:10:06,637 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 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 17:10:06,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2019-09-16 17:10:06,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 263. [2019-09-16 17:10:06,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2019-09-16 17:10:06,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 298 transitions. [2019-09-16 17:10:06,657 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 298 transitions. Word has length 83 [2019-09-16 17:10:06,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:10:06,658 INFO L475 AbstractCegarLoop]: Abstraction has 263 states and 298 transitions. [2019-09-16 17:10:06,658 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:10:06,658 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 298 transitions. [2019-09-16 17:10:06,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-09-16 17:10:06,662 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:10:06,668 INFO L407 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] [2019-09-16 17:10:06,668 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:10:06,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:10:06,668 INFO L82 PathProgramCache]: Analyzing trace with hash 119397721, now seen corresponding path program 1 times [2019-09-16 17:10:06,669 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:10:06,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:06,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:10:06,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:06,675 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:10:06,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:10:06,828 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-16 17:10:06,829 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:10:06,829 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:10:06,829 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:10:06,830 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:10:06,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:10:06,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:10:06,831 INFO L87 Difference]: Start difference. First operand 263 states and 298 transitions. Second operand 7 states. [2019-09-16 17:10:07,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:10:07,547 INFO L93 Difference]: Finished difference Result 281 states and 324 transitions. [2019-09-16 17:10:07,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-16 17:10:07,547 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 97 [2019-09-16 17:10:07,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:10:07,550 INFO L225 Difference]: With dead ends: 281 [2019-09-16 17:10:07,553 INFO L226 Difference]: Without dead ends: 281 [2019-09-16 17:10:07,554 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-16 17:10:07,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2019-09-16 17:10:07,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 262. [2019-09-16 17:10:07,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2019-09-16 17:10:07,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 295 transitions. [2019-09-16 17:10:07,590 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 295 transitions. Word has length 97 [2019-09-16 17:10:07,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:10:07,591 INFO L475 AbstractCegarLoop]: Abstraction has 262 states and 295 transitions. [2019-09-16 17:10:07,591 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:10:07,591 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 295 transitions. [2019-09-16 17:10:07,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-09-16 17:10:07,593 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:10:07,593 INFO L407 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, 1] [2019-09-16 17:10:07,593 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:10:07,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:10:07,594 INFO L82 PathProgramCache]: Analyzing trace with hash 299468705, now seen corresponding path program 1 times [2019-09-16 17:10:07,594 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:10:07,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:07,597 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:10:07,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:07,597 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:10:07,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:10:07,675 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:10:07,676 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:10:07,676 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:10:07,676 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:10:07,677 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:10:07,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:10:07,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:10:07,678 INFO L87 Difference]: Start difference. First operand 262 states and 295 transitions. Second operand 6 states. [2019-09-16 17:10:07,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:10:07,709 INFO L93 Difference]: Finished difference Result 269 states and 302 transitions. [2019-09-16 17:10:07,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:10:07,711 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 113 [2019-09-16 17:10:07,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:10:07,714 INFO L225 Difference]: With dead ends: 269 [2019-09-16 17:10:07,714 INFO L226 Difference]: Without dead ends: 269 [2019-09-16 17:10:07,715 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 17:10:07,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2019-09-16 17:10:07,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 267. [2019-09-16 17:10:07,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2019-09-16 17:10:07,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 300 transitions. [2019-09-16 17:10:07,739 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 300 transitions. Word has length 113 [2019-09-16 17:10:07,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:10:07,740 INFO L475 AbstractCegarLoop]: Abstraction has 267 states and 300 transitions. [2019-09-16 17:10:07,740 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:10:07,740 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 300 transitions. [2019-09-16 17:10:07,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-09-16 17:10:07,742 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:10:07,742 INFO L407 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, 1] [2019-09-16 17:10:07,742 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:10:07,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:10:07,743 INFO L82 PathProgramCache]: Analyzing trace with hash -2056336545, now seen corresponding path program 1 times [2019-09-16 17:10:07,743 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:10:07,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:07,745 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:10:07,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:07,746 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:10:07,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:10:07,853 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:10:07,853 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:10:07,854 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-16 17:10:07,854 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:10:07,854 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-16 17:10:07,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-16 17:10:07,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:10:07,855 INFO L87 Difference]: Start difference. First operand 267 states and 300 transitions. Second operand 8 states. [2019-09-16 17:10:07,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:10:07,886 INFO L93 Difference]: Finished difference Result 274 states and 307 transitions. [2019-09-16 17:10:07,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:10:07,887 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 113 [2019-09-16 17:10:07,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:10:07,889 INFO L225 Difference]: With dead ends: 274 [2019-09-16 17:10:07,889 INFO L226 Difference]: Without dead ends: 274 [2019-09-16 17:10:07,889 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 17:10:07,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2019-09-16 17:10:07,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 271. [2019-09-16 17:10:07,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2019-09-16 17:10:07,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 304 transitions. [2019-09-16 17:10:07,900 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 304 transitions. Word has length 113 [2019-09-16 17:10:07,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:10:07,901 INFO L475 AbstractCegarLoop]: Abstraction has 271 states and 304 transitions. [2019-09-16 17:10:07,901 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-16 17:10:07,901 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 304 transitions. [2019-09-16 17:10:07,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-09-16 17:10:07,903 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:10:07,903 INFO L407 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, 1] [2019-09-16 17:10:07,903 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:10:07,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:10:07,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1287166530, now seen corresponding path program 1 times [2019-09-16 17:10:07,904 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:10:07,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:07,906 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:10:07,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:07,906 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:10:07,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:10:07,995 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:10:07,995 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:10:07,995 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:10:07,995 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:10:07,997 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:10:07,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:10:07,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:10:07,998 INFO L87 Difference]: Start difference. First operand 271 states and 304 transitions. Second operand 4 states. [2019-09-16 17:10:08,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:10:08,249 INFO L93 Difference]: Finished difference Result 539 states and 628 transitions. [2019-09-16 17:10:08,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 17:10:08,249 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 113 [2019-09-16 17:10:08,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:10:08,254 INFO L225 Difference]: With dead ends: 539 [2019-09-16 17:10:08,254 INFO L226 Difference]: Without dead ends: 539 [2019-09-16 17:10:08,255 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 17:10:08,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2019-09-16 17:10:08,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 530. [2019-09-16 17:10:08,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 530 states. [2019-09-16 17:10:08,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 611 transitions. [2019-09-16 17:10:08,293 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 611 transitions. Word has length 113 [2019-09-16 17:10:08,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:10:08,295 INFO L475 AbstractCegarLoop]: Abstraction has 530 states and 611 transitions. [2019-09-16 17:10:08,295 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:10:08,295 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 611 transitions. [2019-09-16 17:10:08,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-09-16 17:10:08,299 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:10:08,299 INFO L407 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, 1, 1, 1, 1, 1] [2019-09-16 17:10:08,299 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:10:08,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:10:08,300 INFO L82 PathProgramCache]: Analyzing trace with hash -803017404, now seen corresponding path program 1 times [2019-09-16 17:10:08,300 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:10:08,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:08,302 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:10:08,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:08,303 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:10:08,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:10:08,500 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:10:08,500 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:10:08,501 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-16 17:10:08,501 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:10:08,501 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-16 17:10:08,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-16 17:10:08,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-16 17:10:08,502 INFO L87 Difference]: Start difference. First operand 530 states and 611 transitions. Second operand 9 states. [2019-09-16 17:10:09,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:10:09,806 INFO L93 Difference]: Finished difference Result 970 states and 1120 transitions. [2019-09-16 17:10:09,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-16 17:10:09,807 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 117 [2019-09-16 17:10:09,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:10:09,812 INFO L225 Difference]: With dead ends: 970 [2019-09-16 17:10:09,812 INFO L226 Difference]: Without dead ends: 970 [2019-09-16 17:10:09,812 INFO L636 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 [2019-09-16 17:10:09,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2019-09-16 17:10:09,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 886. [2019-09-16 17:10:09,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 886 states. [2019-09-16 17:10:09,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1009 transitions. [2019-09-16 17:10:09,850 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1009 transitions. Word has length 117 [2019-09-16 17:10:09,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:10:09,851 INFO L475 AbstractCegarLoop]: Abstraction has 886 states and 1009 transitions. [2019-09-16 17:10:09,851 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-16 17:10:09,851 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1009 transitions. [2019-09-16 17:10:09,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-09-16 17:10:09,854 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:10:09,855 INFO L407 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, 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, 1, 1, 1, 1, 1] [2019-09-16 17:10:09,855 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:10:09,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:10:09,855 INFO L82 PathProgramCache]: Analyzing trace with hash -394036424, now seen corresponding path program 1 times [2019-09-16 17:10:09,856 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:10:09,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:09,858 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:10:09,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:09,858 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:10:09,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:10:10,015 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 23 proven. 9 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-09-16 17:10:10,015 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 17:10:10,015 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-16 17:10:10,016 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 196 with the following transitions: [2019-09-16 17:10:10,019 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [83], [85], [88], [92], [93], [94], [110], [114], [115], [116], [119], [121], [127], [131], [134], [135], [136], [145], [149], [153], [156], [159], [161], [167], [169], [175], [178], [188], [189], [190], [191], [201], [203], [208], [211], [212], [214], [219], [221], [222], [223], [224], [225], [226], [230], [233], [237], [243], [272], [276], [279], [282], [284], [287], [294], [297], [300], [304], [305], [308], [309], [310], [312], [313], [314], [316], [319], [321], [324], [327], [336], [338], [339], [342], [344], [350], [354], [357], [358], [359], [383], [385], [386], [453], [454], [464], [472], [473], [474], [475], [476], [477], [478], [479], [480], [512], [513], [514], [515], [518], [519], [520], [521], [522], [523], [528], [529], [532], [533], [534], [535], [536], [537], [538], [539], [540], [541], [542], [543], [544], [545], [550], [551], [552], [553], [556], [557], [558], [559], [560], [561], [562], [563], [564], [566], [567], [570], [571], [572], [573], [576], [577], [578], [580], [581], [586], [587], [588] [2019-09-16 17:10:10,071 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-16 17:10:10,072 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-16 17:10:10,155 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-16 17:10:10,157 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 69 root evaluator evaluations with a maximum evaluation depth of 0. Performed 69 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-09-16 17:10:10,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:10:10,162 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-16 17:10:10,270 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-16 17:10:10,271 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-16 17:10:10,279 INFO L420 sIntCurrentIteration]: We unified 194 AI predicates to 194 [2019-09-16 17:10:10,280 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-16 17:10:10,281 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-16 17:10:10,281 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-09-16 17:10:10,281 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:10:10,282 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:10:10,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:10:10,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:10:10,283 INFO L87 Difference]: Start difference. First operand 886 states and 1009 transitions. Second operand 2 states. [2019-09-16 17:10:10,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:10:10,284 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-16 17:10:10,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:10:10,284 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 195 [2019-09-16 17:10:10,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:10:10,285 INFO L225 Difference]: With dead ends: 2 [2019-09-16 17:10:10,285 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:10:10,286 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 194 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 17:10:10,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:10:10,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:10:10,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:10:10,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:10:10,287 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 195 [2019-09-16 17:10:10,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:10:10,287 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:10:10,287 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:10:10,287 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:10:10,288 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:10:10,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:10:10 BoogieIcfgContainer [2019-09-16 17:10:10,295 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:10:10,298 INFO L168 Benchmark]: Toolchain (without parser) took 8520.88 ms. Allocated memory was 140.0 MB in the beginning and 322.4 MB in the end (delta: 182.5 MB). Free memory was 86.4 MB in the beginning and 94.7 MB in the end (delta: -8.3 MB). Peak memory consumption was 174.2 MB. Max. memory is 7.1 GB. [2019-09-16 17:10:10,299 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 140.0 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:10:10,301 INFO L168 Benchmark]: CACSL2BoogieTranslator took 804.38 ms. Allocated memory was 140.0 MB in the beginning and 199.2 MB in the end (delta: 59.2 MB). Free memory was 86.2 MB in the beginning and 163.0 MB in the end (delta: -76.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2019-09-16 17:10:10,302 INFO L168 Benchmark]: Boogie Preprocessor took 93.18 ms. Allocated memory is still 199.2 MB. Free memory was 163.0 MB in the beginning and 158.7 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2019-09-16 17:10:10,309 INFO L168 Benchmark]: RCFGBuilder took 1322.00 ms. Allocated memory was 199.2 MB in the beginning and 224.4 MB in the end (delta: 25.2 MB). Free memory was 158.7 MB in the beginning and 186.3 MB in the end (delta: -27.6 MB). Peak memory consumption was 88.2 MB. Max. memory is 7.1 GB. [2019-09-16 17:10:10,310 INFO L168 Benchmark]: TraceAbstraction took 6278.80 ms. Allocated memory was 224.4 MB in the beginning and 322.4 MB in the end (delta: 98.0 MB). Free memory was 185.0 MB in the beginning and 94.7 MB in the end (delta: 90.3 MB). Peak memory consumption was 188.3 MB. Max. memory is 7.1 GB. [2019-09-16 17:10:10,322 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 140.0 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 804.38 ms. Allocated memory was 140.0 MB in the beginning and 199.2 MB in the end (delta: 59.2 MB). Free memory was 86.2 MB in the beginning and 163.0 MB in the end (delta: -76.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 93.18 ms. Allocated memory is still 199.2 MB. Free memory was 163.0 MB in the beginning and 158.7 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1322.00 ms. Allocated memory was 199.2 MB in the beginning and 224.4 MB in the end (delta: 25.2 MB). Free memory was 158.7 MB in the beginning and 186.3 MB in the end (delta: -27.6 MB). Peak memory consumption was 88.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6278.80 ms. Allocated memory was 224.4 MB in the beginning and 322.4 MB in the end (delta: 98.0 MB). Free memory was 185.0 MB in the beginning and 94.7 MB in the end (delta: 90.3 MB). Peak memory consumption was 188.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 998]: 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 45 procedures, 266 locations, 1 error locations. SAFE Result, 6.2s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 3.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1866 SDtfs, 1335 SDslu, 3686 SDs, 0 SdLazy, 2116 SolverSat, 490 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 303 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=886occurred 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, 0.788659793814433 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 136 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1015 NumberOfCodeBlocks, 1015 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1005 ConstructedInterpolants, 0 QuantifiedInterpolants, 187747 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 73/82 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...