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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:40:30,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:40:30,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:40:30,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:40:30,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:40:30,625 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:40:30,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:40:30,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:40:30,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:40:30,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:40:30,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:40:30,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:40:30,633 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:40:30,634 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:40:30,635 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:40:30,636 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:40:30,637 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:40:30,638 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:40:30,640 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:40:30,642 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:40:30,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:40:30,645 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:40:30,646 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:40:30,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:40:30,650 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:40:30,650 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:40:30,650 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:40:30,651 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:40:30,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:40:30,653 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:40:30,653 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:40:30,654 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:40:30,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:40:30,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:40:30,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:40:30,656 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:40:30,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:40:30,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:40:30,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:40:30,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:40:30,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:40:30,660 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 23:40:30,675 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:40:30,675 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:40:30,676 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:40:30,677 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:40:30,677 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:40:30,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:40:30,677 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:40:30,677 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:40:30,677 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:40:30,678 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:40:30,678 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:40:30,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:40:30,678 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:40:30,678 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:40:30,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:40:30,679 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:40:30,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:40:30,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:40:30,679 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:40:30,680 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:40:30,680 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:40:30,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:40:30,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:40:30,681 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:40:30,681 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:40:30,681 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:40:30,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:40:30,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:40:30,682 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:40:31,006 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:40:31,027 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:40:31,030 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:40:31,031 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:40:31,032 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:40:31,033 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product42.cil.c [2019-10-14 23:40:31,093 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0516bf09/70a631b6f64f480a8a016cf0efa785f8/FLAG04494d18f [2019-10-14 23:40:31,555 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:40:31,556 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product42.cil.c [2019-10-14 23:40:31,569 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0516bf09/70a631b6f64f480a8a016cf0efa785f8/FLAG04494d18f [2019-10-14 23:40:31,910 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0516bf09/70a631b6f64f480a8a016cf0efa785f8 [2019-10-14 23:40:31,919 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:40:31,920 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:40:31,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:40:31,922 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:40:31,925 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:40:31,926 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:40:31" (1/1) ... [2019-10-14 23:40:31,929 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79462fd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:31, skipping insertion in model container [2019-10-14 23:40:31,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:40:31" (1/1) ... [2019-10-14 23:40:31,937 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:40:32,000 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:40:32,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:40:32,518 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:40:32,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:40:32,649 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:40:32,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:32 WrapperNode [2019-10-14 23:40:32,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:40:32,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:40:32,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:40:32,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:40:32,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:32" (1/1) ... [2019-10-14 23:40:32,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:32" (1/1) ... [2019-10-14 23:40:32,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:32" (1/1) ... [2019-10-14 23:40:32,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:32" (1/1) ... [2019-10-14 23:40:32,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:32" (1/1) ... [2019-10-14 23:40:32,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:32" (1/1) ... [2019-10-14 23:40:32,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:32" (1/1) ... [2019-10-14 23:40:32,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:40:32,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:40:32,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:40:32,736 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:40:32,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:40:32,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:40:32,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:40:32,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-14 23:40:32,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-14 23:40:32,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-14 23:40:32,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-14 23:40:32,807 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-14 23:40:32,807 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-14 23:40:32,807 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-14 23:40:32,807 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-14 23:40:32,808 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:40:32,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-14 23:40:32,808 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-14 23:40:32,808 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-14 23:40:32,808 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-14 23:40:32,808 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-14 23:40:32,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-14 23:40:32,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-14 23:40:32,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-14 23:40:32,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-14 23:40:32,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-14 23:40:32,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-14 23:40:32,810 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-14 23:40:32,810 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-14 23:40:32,810 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-14 23:40:32,810 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-14 23:40:32,810 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-14 23:40:32,811 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-14 23:40:32,811 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-14 23:40:32,811 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-14 23:40:32,811 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-14 23:40:32,811 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-14 23:40:32,811 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-14 23:40:32,812 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-10-14 23:40:32,812 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-14 23:40:32,812 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-14 23:40:32,812 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-14 23:40:32,812 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-14 23:40:32,812 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-14 23:40:32,813 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-14 23:40:32,813 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-14 23:40:32,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:40:32,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:40:32,813 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-14 23:40:32,813 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-14 23:40:32,814 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-14 23:40:32,814 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-14 23:40:32,814 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-14 23:40:32,814 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-14 23:40:32,814 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-14 23:40:32,814 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-14 23:40:32,814 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-14 23:40:32,815 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-14 23:40:32,815 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-14 23:40:32,815 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-14 23:40:32,815 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-14 23:40:32,815 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-14 23:40:32,816 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-14 23:40:32,816 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-14 23:40:32,816 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-14 23:40:32,816 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-14 23:40:32,816 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-14 23:40:32,817 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:40:32,817 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-14 23:40:32,817 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-14 23:40:32,817 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:40:32,817 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:40:32,817 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-14 23:40:32,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:40:32,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:40:32,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:40:32,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:40:32,818 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-14 23:40:32,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:40:32,819 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-14 23:40:32,819 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-14 23:40:32,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:40:32,819 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-14 23:40:32,819 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-14 23:40:32,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:40:32,820 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-14 23:40:32,820 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-14 23:40:32,820 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-14 23:40:32,820 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-14 23:40:32,820 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-14 23:40:32,820 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-14 23:40:32,821 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-14 23:40:32,821 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-14 23:40:32,821 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-14 23:40:32,821 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-14 23:40:32,821 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-14 23:40:32,821 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-10-14 23:40:32,822 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-14 23:40:32,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:40:32,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:40:32,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:40:34,059 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:40:34,061 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-14 23:40:34,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:40:34 BoogieIcfgContainer [2019-10-14 23:40:34,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:40:34,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:40:34,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:40:34,069 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:40:34,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:40:31" (1/3) ... [2019-10-14 23:40:34,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ea72370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:40:34, skipping insertion in model container [2019-10-14 23:40:34,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:32" (2/3) ... [2019-10-14 23:40:34,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ea72370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:40:34, skipping insertion in model container [2019-10-14 23:40:34,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:40:34" (3/3) ... [2019-10-14 23:40:34,074 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product42.cil.c [2019-10-14 23:40:34,085 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:40:34,094 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:40:34,105 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:40:34,137 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:40:34,137 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:40:34,137 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:40:34,137 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:40:34,138 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:40:34,138 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:40:34,138 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:40:34,138 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:40:34,162 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states. [2019-10-14 23:40:34,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-14 23:40:34,178 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:34,179 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:40:34,182 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:34,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:34,189 INFO L82 PathProgramCache]: Analyzing trace with hash -318385319, now seen corresponding path program 1 times [2019-10-14 23:40:34,197 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:34,198 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216694729] [2019-10-14 23:40:34,198 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:34,198 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:34,199 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:34,988 WARN L191 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:34,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,107 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:40:35,108 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216694729] [2019-10-14 23:40:35,109 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:40:35,110 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:40:35,111 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189459449] [2019-10-14 23:40:35,118 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:40:35,118 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:35,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:40:35,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:40:35,136 INFO L87 Difference]: Start difference. First operand 177 states. Second operand 4 states. [2019-10-14 23:40:36,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:40:36,282 INFO L93 Difference]: Finished difference Result 297 states and 378 transitions. [2019-10-14 23:40:36,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:40:36,284 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2019-10-14 23:40:36,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:40:36,299 INFO L225 Difference]: With dead ends: 297 [2019-10-14 23:40:36,300 INFO L226 Difference]: Without dead ends: 164 [2019-10-14 23:40:36,305 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:40:36,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2019-10-14 23:40:36,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 134. [2019-10-14 23:40:36,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-10-14 23:40:36,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 155 transitions. [2019-10-14 23:40:36,394 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 155 transitions. Word has length 59 [2019-10-14 23:40:36,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:40:36,394 INFO L462 AbstractCegarLoop]: Abstraction has 134 states and 155 transitions. [2019-10-14 23:40:36,395 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:40:36,395 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 155 transitions. [2019-10-14 23:40:36,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-14 23:40:36,398 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:36,399 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:40:36,399 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:36,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:36,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1634844471, now seen corresponding path program 1 times [2019-10-14 23:40:36,400 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:36,400 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178224047] [2019-10-14 23:40:36,400 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:36,400 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:36,401 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:36,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:36,766 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:36,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:36,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:36,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:36,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:36,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:36,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:36,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:36,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:36,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:36,849 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:40:36,850 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178224047] [2019-10-14 23:40:36,850 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:40:36,850 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:40:36,851 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812008172] [2019-10-14 23:40:36,852 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:40:36,853 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:36,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:40:36,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:40:36,853 INFO L87 Difference]: Start difference. First operand 134 states and 155 transitions. Second operand 5 states. [2019-10-14 23:40:37,406 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:38,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:40:38,268 INFO L93 Difference]: Finished difference Result 238 states and 286 transitions. [2019-10-14 23:40:38,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 23:40:38,269 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2019-10-14 23:40:38,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:40:38,272 INFO L225 Difference]: With dead ends: 238 [2019-10-14 23:40:38,272 INFO L226 Difference]: Without dead ends: 154 [2019-10-14 23:40:38,274 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:40:38,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-10-14 23:40:38,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 125. [2019-10-14 23:40:38,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-10-14 23:40:38,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 143 transitions. [2019-10-14 23:40:38,307 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 143 transitions. Word has length 60 [2019-10-14 23:40:38,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:40:38,307 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 143 transitions. [2019-10-14 23:40:38,307 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:40:38,307 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 143 transitions. [2019-10-14 23:40:38,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-14 23:40:38,310 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:38,310 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:40:38,310 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:38,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:38,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1075077358, now seen corresponding path program 1 times [2019-10-14 23:40:38,311 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:38,311 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495402689] [2019-10-14 23:40:38,311 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:38,311 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:38,312 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:38,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:38,690 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:38,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:38,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:38,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:38,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:38,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:38,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:38,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:38,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:38,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:38,832 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:40:38,832 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495402689] [2019-10-14 23:40:38,833 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:40:38,833 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:40:38,833 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313198359] [2019-10-14 23:40:38,834 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:40:38,834 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:38,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:40:38,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:40:38,835 INFO L87 Difference]: Start difference. First operand 125 states and 143 transitions. Second operand 9 states. [2019-10-14 23:40:39,305 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:40:39,662 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:39,982 WARN L191 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:40,241 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:41,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:40:41,513 INFO L93 Difference]: Finished difference Result 251 states and 305 transitions. [2019-10-14 23:40:41,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-14 23:40:41,514 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2019-10-14 23:40:41,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:40:41,517 INFO L225 Difference]: With dead ends: 251 [2019-10-14 23:40:41,518 INFO L226 Difference]: Without dead ends: 154 [2019-10-14 23:40:41,519 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2019-10-14 23:40:41,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-10-14 23:40:41,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 125. [2019-10-14 23:40:41,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-10-14 23:40:41,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 142 transitions. [2019-10-14 23:40:41,565 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 142 transitions. Word has length 65 [2019-10-14 23:40:41,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:40:41,570 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 142 transitions. [2019-10-14 23:40:41,570 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:40:41,570 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 142 transitions. [2019-10-14 23:40:41,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-10-14 23:40:41,575 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:41,576 INFO L380 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] [2019-10-14 23:40:41,576 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:41,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:41,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1759456211, now seen corresponding path program 1 times [2019-10-14 23:40:41,578 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:41,578 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036248917] [2019-10-14 23:40:41,579 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:41,579 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:41,579 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:41,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:41,904 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:41,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:41,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:41,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:41,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:41,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:41,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:41,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:41,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:41,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:41,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:41,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:42,000 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:40:42,000 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036248917] [2019-10-14 23:40:42,001 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:40:42,001 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-14 23:40:42,001 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118023440] [2019-10-14 23:40:42,002 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:40:42,002 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:42,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:40:42,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:40:42,003 INFO L87 Difference]: Start difference. First operand 125 states and 142 transitions. Second operand 7 states. [2019-10-14 23:40:42,456 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:40:44,100 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:44,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:40:44,445 INFO L93 Difference]: Finished difference Result 346 states and 428 transitions. [2019-10-14 23:40:44,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-14 23:40:44,446 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 73 [2019-10-14 23:40:44,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:40:44,449 INFO L225 Difference]: With dead ends: 346 [2019-10-14 23:40:44,449 INFO L226 Difference]: Without dead ends: 249 [2019-10-14 23:40:44,451 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2019-10-14 23:40:44,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2019-10-14 23:40:44,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 203. [2019-10-14 23:40:44,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2019-10-14 23:40:44,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 233 transitions. [2019-10-14 23:40:44,508 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 233 transitions. Word has length 73 [2019-10-14 23:40:44,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:40:44,508 INFO L462 AbstractCegarLoop]: Abstraction has 203 states and 233 transitions. [2019-10-14 23:40:44,508 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-14 23:40:44,508 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 233 transitions. [2019-10-14 23:40:44,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-10-14 23:40:44,510 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:44,510 INFO L380 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] [2019-10-14 23:40:44,510 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:44,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:44,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1988493165, now seen corresponding path program 1 times [2019-10-14 23:40:44,511 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:44,511 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097648950] [2019-10-14 23:40:44,511 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:44,511 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:44,511 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:44,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:44,878 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:44,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:44,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:44,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:44,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:44,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:44,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:44,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:44,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:44,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:44,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:44,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:44,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:44,983 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-14 23:40:44,984 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097648950] [2019-10-14 23:40:44,984 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:40:44,984 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:40:44,984 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691038495] [2019-10-14 23:40:44,985 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:40:44,985 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:44,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:40:44,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:40:44,986 INFO L87 Difference]: Start difference. First operand 203 states and 233 transitions. Second operand 9 states. [2019-10-14 23:40:45,406 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:40:46,151 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:47,070 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:40:47,357 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:47,809 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:48,080 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:48,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:40:48,424 INFO L93 Difference]: Finished difference Result 423 states and 515 transitions. [2019-10-14 23:40:48,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-14 23:40:48,425 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 87 [2019-10-14 23:40:48,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:40:48,428 INFO L225 Difference]: With dead ends: 423 [2019-10-14 23:40:48,428 INFO L226 Difference]: Without dead ends: 248 [2019-10-14 23:40:48,429 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2019-10-14 23:40:48,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2019-10-14 23:40:48,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 202. [2019-10-14 23:40:48,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2019-10-14 23:40:48,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 230 transitions. [2019-10-14 23:40:48,477 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 230 transitions. Word has length 87 [2019-10-14 23:40:48,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:40:48,477 INFO L462 AbstractCegarLoop]: Abstraction has 202 states and 230 transitions. [2019-10-14 23:40:48,478 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:40:48,478 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 230 transitions. [2019-10-14 23:40:48,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-14 23:40:48,479 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:48,480 INFO L380 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] [2019-10-14 23:40:48,480 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:48,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:48,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1941251357, now seen corresponding path program 1 times [2019-10-14 23:40:48,481 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:48,481 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179981068] [2019-10-14 23:40:48,481 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:48,482 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:48,482 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,772 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:48,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,896 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:40:48,897 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179981068] [2019-10-14 23:40:48,897 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:40:48,897 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:40:48,897 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246895467] [2019-10-14 23:40:48,898 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:40:48,898 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:48,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:40:48,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:40:48,899 INFO L87 Difference]: Start difference. First operand 202 states and 230 transitions. Second operand 9 states. [2019-10-14 23:40:50,075 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:50,330 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-10-14 23:40:50,613 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:50,875 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:51,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:40:51,609 INFO L93 Difference]: Finished difference Result 423 states and 519 transitions. [2019-10-14 23:40:51,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-14 23:40:51,610 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 103 [2019-10-14 23:40:51,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:40:51,612 INFO L225 Difference]: With dead ends: 423 [2019-10-14 23:40:51,612 INFO L226 Difference]: Without dead ends: 249 [2019-10-14 23:40:51,613 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2019-10-14 23:40:51,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2019-10-14 23:40:51,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 207. [2019-10-14 23:40:51,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2019-10-14 23:40:51,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 235 transitions. [2019-10-14 23:40:51,650 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 235 transitions. Word has length 103 [2019-10-14 23:40:51,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:40:51,650 INFO L462 AbstractCegarLoop]: Abstraction has 207 states and 235 transitions. [2019-10-14 23:40:51,650 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:40:51,650 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 235 transitions. [2019-10-14 23:40:51,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-14 23:40:51,652 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:51,652 INFO L380 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] [2019-10-14 23:40:51,652 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:51,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:51,653 INFO L82 PathProgramCache]: Analyzing trace with hash -108136485, now seen corresponding path program 1 times [2019-10-14 23:40:51,653 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:51,653 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281576859] [2019-10-14 23:40:51,653 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:51,653 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:51,654 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:51,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:51,981 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:51,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:51,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:51,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:51,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,127 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:40:52,127 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281576859] [2019-10-14 23:40:52,127 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:40:52,128 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-14 23:40:52,128 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872795893] [2019-10-14 23:40:52,128 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-14 23:40:52,129 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:52,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-14 23:40:52,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:40:52,129 INFO L87 Difference]: Start difference. First operand 207 states and 235 transitions. Second operand 11 states. [2019-10-14 23:40:52,740 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:53,016 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:53,274 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:54,036 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:54,330 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:54,603 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:55,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:40:55,376 INFO L93 Difference]: Finished difference Result 433 states and 530 transitions. [2019-10-14 23:40:55,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-14 23:40:55,377 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2019-10-14 23:40:55,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:40:55,380 INFO L225 Difference]: With dead ends: 433 [2019-10-14 23:40:55,380 INFO L226 Difference]: Without dead ends: 254 [2019-10-14 23:40:55,381 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2019-10-14 23:40:55,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2019-10-14 23:40:55,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 211. [2019-10-14 23:40:55,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2019-10-14 23:40:55,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 239 transitions. [2019-10-14 23:40:55,425 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 239 transitions. Word has length 103 [2019-10-14 23:40:55,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:40:55,426 INFO L462 AbstractCegarLoop]: Abstraction has 211 states and 239 transitions. [2019-10-14 23:40:55,426 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-14 23:40:55,426 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 239 transitions. [2019-10-14 23:40:55,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-14 23:40:55,427 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:55,427 INFO L380 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] [2019-10-14 23:40:55,428 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:55,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:55,428 INFO L82 PathProgramCache]: Analyzing trace with hash 861444538, now seen corresponding path program 1 times [2019-10-14 23:40:55,428 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:55,428 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282794784] [2019-10-14 23:40:55,429 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:55,429 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:55,429 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:55,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,727 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,848 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:40:55,848 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282794784] [2019-10-14 23:40:55,848 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:40:55,849 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-14 23:40:55,849 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137368027] [2019-10-14 23:40:55,849 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:40:55,850 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:55,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:40:55,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:40:55,850 INFO L87 Difference]: Start difference. First operand 211 states and 239 transitions. Second operand 7 states. [2019-10-14 23:40:56,349 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:40:56,939 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:40:58,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:40:58,621 INFO L93 Difference]: Finished difference Result 605 states and 753 transitions. [2019-10-14 23:40:58,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-14 23:40:58,622 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 103 [2019-10-14 23:40:58,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:40:58,625 INFO L225 Difference]: With dead ends: 605 [2019-10-14 23:40:58,625 INFO L226 Difference]: Without dead ends: 422 [2019-10-14 23:40:58,626 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2019-10-14 23:40:58,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2019-10-14 23:40:58,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 380. [2019-10-14 23:40:58,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2019-10-14 23:40:58,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 442 transitions. [2019-10-14 23:40:58,696 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 442 transitions. Word has length 103 [2019-10-14 23:40:58,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:40:58,696 INFO L462 AbstractCegarLoop]: Abstraction has 380 states and 442 transitions. [2019-10-14 23:40:58,697 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-14 23:40:58,697 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 442 transitions. [2019-10-14 23:40:58,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-10-14 23:40:58,699 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:58,699 INFO L380 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] [2019-10-14 23:40:58,699 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:58,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:58,699 INFO L82 PathProgramCache]: Analyzing trace with hash 2005328992, now seen corresponding path program 1 times [2019-10-14 23:40:58,700 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:58,700 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324665455] [2019-10-14 23:40:58,700 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:58,700 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:58,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:59,035 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:59,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:59,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:59,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:59,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:59,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:59,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:59,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:59,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:59,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:59,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:59,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:59,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:59,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:59,207 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:40:59,207 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324665455] [2019-10-14 23:40:59,208 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:40:59,208 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-14 23:40:59,208 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7800665] [2019-10-14 23:40:59,208 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-14 23:40:59,209 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:59,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-14 23:40:59,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:40:59,209 INFO L87 Difference]: Start difference. First operand 380 states and 442 transitions. Second operand 12 states. [2019-10-14 23:40:59,805 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:41:00,541 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:41:01,644 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:01,988 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:02,277 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-10-14 23:41:02,565 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:02,865 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:03,879 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:41:04,146 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:41:04,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:41:04,966 INFO L93 Difference]: Finished difference Result 1052 states and 1296 transitions. [2019-10-14 23:41:04,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-14 23:41:04,967 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 107 [2019-10-14 23:41:04,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:41:04,972 INFO L225 Difference]: With dead ends: 1052 [2019-10-14 23:41:04,972 INFO L226 Difference]: Without dead ends: 769 [2019-10-14 23:41:04,974 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=296, Invalid=964, Unknown=0, NotChecked=0, Total=1260 [2019-10-14 23:41:04,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2019-10-14 23:41:05,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 650. [2019-10-14 23:41:05,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 650 states. [2019-10-14 23:41:05,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 748 transitions. [2019-10-14 23:41:05,136 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 748 transitions. Word has length 107 [2019-10-14 23:41:05,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:41:05,139 INFO L462 AbstractCegarLoop]: Abstraction has 650 states and 748 transitions. [2019-10-14 23:41:05,139 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-14 23:41:05,139 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 748 transitions. [2019-10-14 23:41:05,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2019-10-14 23:41:05,141 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:41:05,142 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:41:05,142 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:41:05,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:41:05,143 INFO L82 PathProgramCache]: Analyzing trace with hash 2092455891, now seen corresponding path program 1 times [2019-10-14 23:41:05,143 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:41:05,143 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701581397] [2019-10-14 23:41:05,143 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:05,144 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:05,144 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:41:05,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:05,531 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:41:05,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:05,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:05,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:05,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:05,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:05,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:05,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:05,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:05,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:05,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:05,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:05,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:05,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:05,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:05,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:05,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:05,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:05,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:05,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:05,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:05,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:05,772 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-14 23:41:05,773 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701581397] [2019-10-14 23:41:05,773 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540591812] [2019-10-14 23:41:05,773 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:41:05,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:05,995 INFO L256 TraceCheckSpWp]: Trace formula consists of 924 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-14 23:41:06,010 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:41:06,176 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 26 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:41:06,177 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:41:06,177 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 7] total 20 [2019-10-14 23:41:06,177 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354828039] [2019-10-14 23:41:06,178 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-14 23:41:06,178 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:41:06,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-14 23:41:06,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2019-10-14 23:41:06,179 INFO L87 Difference]: Start difference. First operand 650 states and 748 transitions. Second operand 20 states. [2019-10-14 23:41:06,841 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-10-14 23:41:07,274 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-10-14 23:41:07,592 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-10-14 23:41:07,892 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-10-14 23:41:08,629 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:41:08,935 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-14 23:41:09,370 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2019-10-14 23:41:10,235 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-10-14 23:41:10,965 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 189