./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-atomic/lamport.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 96f16385 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-atomic/lamport.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 78dd3e229728265c0b15a8284c5b0b9fe0d28799 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-96f1638 [2020-12-02 11:43:29,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 11:43:29,595 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 11:43:29,632 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 11:43:29,633 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 11:43:29,635 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 11:43:29,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 11:43:29,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 11:43:29,643 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 11:43:29,644 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 11:43:29,645 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 11:43:29,646 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 11:43:29,647 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 11:43:29,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 11:43:29,650 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 11:43:29,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 11:43:29,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 11:43:29,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 11:43:29,655 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 11:43:29,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 11:43:29,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 11:43:29,661 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 11:43:29,663 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 11:43:29,664 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 11:43:29,667 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 11:43:29,667 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 11:43:29,668 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 11:43:29,669 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 11:43:29,670 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 11:43:29,671 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 11:43:29,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 11:43:29,672 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 11:43:29,673 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 11:43:29,674 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 11:43:29,675 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 11:43:29,676 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 11:43:29,677 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 11:43:29,677 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 11:43:29,678 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 11:43:29,679 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 11:43:29,680 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 11:43:29,681 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 11:43:29,713 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 11:43:29,714 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 11:43:29,715 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 11:43:29,715 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 11:43:29,716 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 11:43:29,716 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 11:43:29,717 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 11:43:29,717 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 11:43:29,717 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 11:43:29,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 11:43:29,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 11:43:29,718 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 11:43:29,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 11:43:29,719 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 11:43:29,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 11:43:29,719 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 11:43:29,720 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 11:43:29,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 11:43:29,720 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 11:43:29,720 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 11:43:29,721 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 11:43:29,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 11:43:29,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 11:43:29,722 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 11:43:29,722 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 11:43:29,722 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 11:43:29,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 11:43:29,723 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 11:43:29,723 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 11:43:29,723 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78dd3e229728265c0b15a8284c5b0b9fe0d28799 [2020-12-02 11:43:30,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 11:43:30,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 11:43:30,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 11:43:30,137 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 11:43:30,138 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 11:43:30,139 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/lamport.i [2020-12-02 11:43:30,222 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb272945a/ee557bc86c5c496eae88d1a4da8f5cb2/FLAG5d4b188b9 [2020-12-02 11:43:30,860 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 11:43:30,861 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/lamport.i [2020-12-02 11:43:30,879 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb272945a/ee557bc86c5c496eae88d1a4da8f5cb2/FLAG5d4b188b9 [2020-12-02 11:43:31,120 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb272945a/ee557bc86c5c496eae88d1a4da8f5cb2 [2020-12-02 11:43:31,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 11:43:31,125 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 11:43:31,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 11:43:31,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 11:43:31,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 11:43:31,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:43:31" (1/1) ... [2020-12-02 11:43:31,142 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6129b047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:31, skipping insertion in model container [2020-12-02 11:43:31,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:43:31" (1/1) ... [2020-12-02 11:43:31,151 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 11:43:31,241 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-02 11:43:31,425 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-12-02 11:43:31,570 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/lamport.i[32156,32169] [2020-12-02 11:43:31,580 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/lamport.i[34083,34096] [2020-12-02 11:43:31,586 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 11:43:31,595 INFO L203 MainTranslator]: Completed pre-run [2020-12-02 11:43:31,613 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-12-02 11:43:31,674 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/lamport.i[32156,32169] [2020-12-02 11:43:31,686 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/lamport.i[34083,34096] [2020-12-02 11:43:31,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 11:43:31,808 INFO L208 MainTranslator]: Completed translation [2020-12-02 11:43:31,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:31 WrapperNode [2020-12-02 11:43:31,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 11:43:31,817 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 11:43:31,817 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 11:43:31,817 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 11:43:31,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:31" (1/1) ... [2020-12-02 11:43:31,842 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:31" (1/1) ... [2020-12-02 11:43:31,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 11:43:31,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 11:43:31,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 11:43:31,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 11:43:31,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:31" (1/1) ... [2020-12-02 11:43:31,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:31" (1/1) ... [2020-12-02 11:43:31,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:31" (1/1) ... [2020-12-02 11:43:31,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:31" (1/1) ... [2020-12-02 11:43:31,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:31" (1/1) ... [2020-12-02 11:43:31,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:31" (1/1) ... [2020-12-02 11:43:31,896 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:31" (1/1) ... [2020-12-02 11:43:31,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 11:43:31,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 11:43:31,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 11:43:31,904 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 11:43:31,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:31" (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 [2020-12-02 11:43:32,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-02 11:43:32,004 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-12-02 11:43:32,004 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-12-02 11:43:32,004 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-12-02 11:43:32,004 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-12-02 11:43:32,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-02 11:43:32,005 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-02 11:43:32,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 11:43:32,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 11:43:32,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 11:43:32,005 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-02 11:43:32,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 11:43:32,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 11:43:32,008 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-02 11:43:32,429 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 11:43:32,430 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-12-02 11:43:32,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:43:32 BoogieIcfgContainer [2020-12-02 11:43:32,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 11:43:32,434 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 11:43:32,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 11:43:32,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 11:43:32,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:43:31" (1/3) ... [2020-12-02 11:43:32,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@603f871d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:43:32, skipping insertion in model container [2020-12-02 11:43:32,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:31" (2/3) ... [2020-12-02 11:43:32,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@603f871d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:43:32, skipping insertion in model container [2020-12-02 11:43:32,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:43:32" (3/3) ... [2020-12-02 11:43:32,441 INFO L111 eAbstractionObserver]: Analyzing ICFG lamport.i [2020-12-02 11:43:32,462 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-02 11:43:32,462 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 11:43:32,466 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-02 11:43:32,467 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-02 11:43:32,500 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,501 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,501 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,501 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,501 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,502 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,502 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,502 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,504 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,505 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,506 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,507 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,507 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,507 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,507 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,510 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,510 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,511 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,511 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,511 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,511 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,512 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,512 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,512 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,512 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,513 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,513 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,515 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,515 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,522 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,522 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,523 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,523 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,523 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,523 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,524 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,524 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,524 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,524 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,525 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,525 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,525 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,525 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,525 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,526 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,526 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,526 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,526 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,526 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,527 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,527 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,527 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,527 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,528 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,529 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,529 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,529 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,529 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,529 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,529 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,530 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,530 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,531 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,531 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,531 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,531 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,531 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,532 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,532 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,532 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,532 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,532 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,533 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,533 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,533 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,533 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,534 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,534 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,534 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,534 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,535 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,535 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,535 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,535 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,535 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,536 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,536 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,536 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,536 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,537 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,537 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,537 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,537 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,538 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,538 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,538 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,538 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,538 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,539 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,539 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,539 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,539 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,540 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,540 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,540 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,540 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,540 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,541 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,543 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,543 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,544 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,544 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,544 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,544 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,544 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,550 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,551 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,551 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,551 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,551 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,552 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,552 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:32,558 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-12-02 11:43:32,571 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-12-02 11:43:32,593 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 11:43:32,593 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 11:43:32,593 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 11:43:32,593 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 11:43:32,594 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 11:43:32,594 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 11:43:32,594 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 11:43:32,594 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 11:43:32,608 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-02 11:43:32,610 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 106 places, 125 transitions, 272 flow [2020-12-02 11:43:32,614 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 125 transitions, 272 flow [2020-12-02 11:43:32,616 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 125 transitions, 272 flow [2020-12-02 11:43:32,679 INFO L129 PetriNetUnfolder]: 25/125 cut-off events. [2020-12-02 11:43:32,679 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-12-02 11:43:32,686 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 125 events. 25/125 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 280 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 97. Up to 5 conditions per place. [2020-12-02 11:43:32,693 INFO L116 LiptonReduction]: Number of co-enabled transitions 4816 [2020-12-02 11:43:34,817 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-12-02 11:43:35,003 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-12-02 11:43:35,389 WARN L197 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2020-12-02 11:43:35,505 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-02 11:43:35,767 WARN L197 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2020-12-02 11:43:35,889 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-02 11:43:35,932 INFO L131 LiptonReduction]: Checked pairs total: 15085 [2020-12-02 11:43:35,932 INFO L133 LiptonReduction]: Total number of compositions: 77 [2020-12-02 11:43:35,939 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 70 transitions, 162 flow [2020-12-02 11:43:36,004 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 920 states. [2020-12-02 11:43:36,007 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states. [2020-12-02 11:43:36,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-02 11:43:36,012 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 11:43:36,013 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-02 11:43:36,013 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 11:43:36,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 11:43:36,020 INFO L82 PathProgramCache]: Analyzing trace with hash 16666052, now seen corresponding path program 1 times [2020-12-02 11:43:36,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 11:43:36,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122477899] [2020-12-02 11:43:36,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 11:43:36,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 11:43:36,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 11:43:36,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122477899] [2020-12-02 11:43:36,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 11:43:36,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 11:43:36,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317034576] [2020-12-02 11:43:36,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 11:43:36,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 11:43:36,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 11:43:36,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 11:43:36,213 INFO L87 Difference]: Start difference. First operand 920 states. Second operand 2 states. [2020-12-02 11:43:36,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 11:43:36,267 INFO L93 Difference]: Finished difference Result 920 states and 2646 transitions. [2020-12-02 11:43:36,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 11:43:36,269 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2020-12-02 11:43:36,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 11:43:36,300 INFO L225 Difference]: With dead ends: 920 [2020-12-02 11:43:36,301 INFO L226 Difference]: Without dead ends: 881 [2020-12-02 11:43:36,302 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 11:43:36,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2020-12-02 11:43:36,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 881. [2020-12-02 11:43:36,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 881 states. [2020-12-02 11:43:36,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 2561 transitions. [2020-12-02 11:43:36,422 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 2561 transitions. Word has length 4 [2020-12-02 11:43:36,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 11:43:36,423 INFO L481 AbstractCegarLoop]: Abstraction has 881 states and 2561 transitions. [2020-12-02 11:43:36,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 11:43:36,423 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 2561 transitions. [2020-12-02 11:43:36,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-02 11:43:36,425 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 11:43:36,425 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 11:43:36,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 11:43:36,425 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 11:43:36,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 11:43:36,426 INFO L82 PathProgramCache]: Analyzing trace with hash 488323231, now seen corresponding path program 1 times [2020-12-02 11:43:36,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 11:43:36,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144496007] [2020-12-02 11:43:36,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 11:43:36,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 11:43:36,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 11:43:36,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144496007] [2020-12-02 11:43:36,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 11:43:36,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 11:43:36,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108918503] [2020-12-02 11:43:36,522 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-02 11:43:36,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 11:43:36,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-02 11:43:36,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-02 11:43:36,525 INFO L87 Difference]: Start difference. First operand 881 states and 2561 transitions. Second operand 3 states. [2020-12-02 11:43:36,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 11:43:36,558 INFO L93 Difference]: Finished difference Result 880 states and 2517 transitions. [2020-12-02 11:43:36,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-02 11:43:36,559 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-02 11:43:36,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 11:43:36,565 INFO L225 Difference]: With dead ends: 880 [2020-12-02 11:43:36,566 INFO L226 Difference]: Without dead ends: 745 [2020-12-02 11:43:36,566 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-02 11:43:36,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2020-12-02 11:43:36,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 727. [2020-12-02 11:43:36,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 727 states. [2020-12-02 11:43:36,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 2130 transitions. [2020-12-02 11:43:36,600 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 2130 transitions. Word has length 10 [2020-12-02 11:43:36,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 11:43:36,600 INFO L481 AbstractCegarLoop]: Abstraction has 727 states and 2130 transitions. [2020-12-02 11:43:36,601 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-02 11:43:36,601 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 2130 transitions. [2020-12-02 11:43:36,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-02 11:43:36,605 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 11:43:36,610 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 11:43:36,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-02 11:43:36,611 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 11:43:36,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 11:43:36,611 INFO L82 PathProgramCache]: Analyzing trace with hash 822516175, now seen corresponding path program 1 times [2020-12-02 11:43:36,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 11:43:36,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110767261] [2020-12-02 11:43:36,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 11:43:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 11:43:36,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 11:43:36,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110767261] [2020-12-02 11:43:36,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 11:43:36,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 11:43:36,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822685890] [2020-12-02 11:43:36,699 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-02 11:43:36,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 11:43:36,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-02 11:43:36,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-02 11:43:36,700 INFO L87 Difference]: Start difference. First operand 727 states and 2130 transitions. Second operand 3 states. [2020-12-02 11:43:36,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 11:43:36,725 INFO L93 Difference]: Finished difference Result 704 states and 2046 transitions. [2020-12-02 11:43:36,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-02 11:43:36,726 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-12-02 11:43:36,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 11:43:36,730 INFO L225 Difference]: With dead ends: 704 [2020-12-02 11:43:36,730 INFO L226 Difference]: Without dead ends: 554 [2020-12-02 11:43:36,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-02 11:43:36,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2020-12-02 11:43:36,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2020-12-02 11:43:36,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2020-12-02 11:43:36,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 1655 transitions. [2020-12-02 11:43:36,751 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 1655 transitions. Word has length 11 [2020-12-02 11:43:36,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 11:43:36,752 INFO L481 AbstractCegarLoop]: Abstraction has 554 states and 1655 transitions. [2020-12-02 11:43:36,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-02 11:43:36,752 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 1655 transitions. [2020-12-02 11:43:36,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-02 11:43:36,756 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 11:43:36,756 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 11:43:36,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-02 11:43:36,757 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 11:43:36,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 11:43:36,757 INFO L82 PathProgramCache]: Analyzing trace with hash 306664604, now seen corresponding path program 1 times [2020-12-02 11:43:36,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 11:43:36,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681454914] [2020-12-02 11:43:36,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 11:43:36,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 11:43:36,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 11:43:36,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681454914] [2020-12-02 11:43:36,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 11:43:36,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 11:43:36,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502397311] [2020-12-02 11:43:36,821 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-02 11:43:36,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 11:43:36,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-02 11:43:36,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-02 11:43:36,822 INFO L87 Difference]: Start difference. First operand 554 states and 1655 transitions. Second operand 3 states. [2020-12-02 11:43:36,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 11:43:36,873 INFO L93 Difference]: Finished difference Result 982 states and 2943 transitions. [2020-12-02 11:43:36,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-02 11:43:36,874 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-12-02 11:43:36,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 11:43:36,879 INFO L225 Difference]: With dead ends: 982 [2020-12-02 11:43:36,880 INFO L226 Difference]: Without dead ends: 650 [2020-12-02 11:43:36,880 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-02 11:43:36,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2020-12-02 11:43:36,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 630. [2020-12-02 11:43:36,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 630 states. [2020-12-02 11:43:36,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 1876 transitions. [2020-12-02 11:43:36,903 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 1876 transitions. Word has length 18 [2020-12-02 11:43:36,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 11:43:36,903 INFO L481 AbstractCegarLoop]: Abstraction has 630 states and 1876 transitions. [2020-12-02 11:43:36,904 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-02 11:43:36,904 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 1876 transitions. [2020-12-02 11:43:36,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-02 11:43:36,906 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 11:43:36,906 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 11:43:36,906 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-02 11:43:36,906 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 11:43:36,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 11:43:36,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1432626128, now seen corresponding path program 2 times [2020-12-02 11:43:36,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 11:43:36,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844747794] [2020-12-02 11:43:36,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 11:43:36,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 11:43:36,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 11:43:36,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844747794] [2020-12-02 11:43:36,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 11:43:36,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-02 11:43:36,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778613933] [2020-12-02 11:43:36,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-02 11:43:36,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 11:43:36,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-02 11:43:36,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-02 11:43:36,964 INFO L87 Difference]: Start difference. First operand 630 states and 1876 transitions. Second operand 4 states. [2020-12-02 11:43:37,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 11:43:37,031 INFO L93 Difference]: Finished difference Result 1500 states and 4249 transitions. [2020-12-02 11:43:37,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-02 11:43:37,031 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-12-02 11:43:37,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 11:43:37,042 INFO L225 Difference]: With dead ends: 1500 [2020-12-02 11:43:37,043 INFO L226 Difference]: Without dead ends: 1478 [2020-12-02 11:43:37,043 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-02 11:43:37,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2020-12-02 11:43:37,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 730. [2020-12-02 11:43:37,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 730 states. [2020-12-02 11:43:37,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 2150 transitions. [2020-12-02 11:43:37,080 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 2150 transitions. Word has length 18 [2020-12-02 11:43:37,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 11:43:37,081 INFO L481 AbstractCegarLoop]: Abstraction has 730 states and 2150 transitions. [2020-12-02 11:43:37,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-02 11:43:37,081 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 2150 transitions. [2020-12-02 11:43:37,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-02 11:43:37,083 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 11:43:37,083 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 11:43:37,083 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-02 11:43:37,085 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 11:43:37,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 11:43:37,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1528143418, now seen corresponding path program 3 times [2020-12-02 11:43:37,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 11:43:37,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858570742] [2020-12-02 11:43:37,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 11:43:37,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 11:43:37,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 11:43:37,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858570742] [2020-12-02 11:43:37,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 11:43:37,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 11:43:37,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256903790] [2020-12-02 11:43:37,153 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-02 11:43:37,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 11:43:37,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-02 11:43:37,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-02 11:43:37,154 INFO L87 Difference]: Start difference. First operand 730 states and 2150 transitions. Second operand 3 states. [2020-12-02 11:43:37,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 11:43:37,223 INFO L93 Difference]: Finished difference Result 824 states and 2331 transitions. [2020-12-02 11:43:37,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-02 11:43:37,224 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-12-02 11:43:37,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 11:43:37,227 INFO L225 Difference]: With dead ends: 824 [2020-12-02 11:43:37,227 INFO L226 Difference]: Without dead ends: 448 [2020-12-02 11:43:37,228 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-02 11:43:37,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-12-02 11:43:37,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 326. [2020-12-02 11:43:37,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2020-12-02 11:43:37,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 838 transitions. [2020-12-02 11:43:37,240 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 838 transitions. Word has length 18 [2020-12-02 11:43:37,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 11:43:37,241 INFO L481 AbstractCegarLoop]: Abstraction has 326 states and 838 transitions. [2020-12-02 11:43:37,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-02 11:43:37,241 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 838 transitions. [2020-12-02 11:43:37,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-02 11:43:37,242 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 11:43:37,242 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 11:43:37,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-02 11:43:37,242 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 11:43:37,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 11:43:37,243 INFO L82 PathProgramCache]: Analyzing trace with hash -291063466, now seen corresponding path program 4 times [2020-12-02 11:43:37,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 11:43:37,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741922502] [2020-12-02 11:43:37,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 11:43:37,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 11:43:37,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 11:43:37,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741922502] [2020-12-02 11:43:37,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 11:43:37,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 11:43:37,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797599935] [2020-12-02 11:43:37,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-02 11:43:37,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 11:43:37,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-02 11:43:37,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-02 11:43:37,271 INFO L87 Difference]: Start difference. First operand 326 states and 838 transitions. Second operand 3 states. [2020-12-02 11:43:37,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 11:43:37,287 INFO L93 Difference]: Finished difference Result 472 states and 1173 transitions. [2020-12-02 11:43:37,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-02 11:43:37,287 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-12-02 11:43:37,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 11:43:37,290 INFO L225 Difference]: With dead ends: 472 [2020-12-02 11:43:37,291 INFO L226 Difference]: Without dead ends: 472 [2020-12-02 11:43:37,291 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-02 11:43:37,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2020-12-02 11:43:37,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 324. [2020-12-02 11:43:37,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-12-02 11:43:37,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 817 transitions. [2020-12-02 11:43:37,303 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 817 transitions. Word has length 18 [2020-12-02 11:43:37,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 11:43:37,304 INFO L481 AbstractCegarLoop]: Abstraction has 324 states and 817 transitions. [2020-12-02 11:43:37,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-02 11:43:37,304 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 817 transitions. [2020-12-02 11:43:37,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-02 11:43:37,305 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 11:43:37,305 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 11:43:37,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-02 11:43:37,306 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 11:43:37,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 11:43:37,306 INFO L82 PathProgramCache]: Analyzing trace with hash 361023947, now seen corresponding path program 1 times [2020-12-02 11:43:37,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 11:43:37,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023154511] [2020-12-02 11:43:37,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 11:43:37,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 11:43:37,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 11:43:37,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023154511] [2020-12-02 11:43:37,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 11:43:37,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-02 11:43:37,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691970629] [2020-12-02 11:43:37,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-02 11:43:37,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 11:43:37,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-02 11:43:37,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-02 11:43:37,341 INFO L87 Difference]: Start difference. First operand 324 states and 817 transitions. Second operand 4 states. [2020-12-02 11:43:37,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 11:43:37,370 INFO L93 Difference]: Finished difference Result 322 states and 802 transitions. [2020-12-02 11:43:37,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-02 11:43:37,370 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-12-02 11:43:37,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 11:43:37,372 INFO L225 Difference]: With dead ends: 322 [2020-12-02 11:43:37,372 INFO L226 Difference]: Without dead ends: 276 [2020-12-02 11:43:37,373 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-02 11:43:37,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-12-02 11:43:37,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2020-12-02 11:43:37,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-12-02 11:43:37,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 690 transitions. [2020-12-02 11:43:37,381 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 690 transitions. Word has length 21 [2020-12-02 11:43:37,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 11:43:37,381 INFO L481 AbstractCegarLoop]: Abstraction has 276 states and 690 transitions. [2020-12-02 11:43:37,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-02 11:43:37,381 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 690 transitions. [2020-12-02 11:43:37,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-02 11:43:37,382 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 11:43:37,382 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 11:43:37,382 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-02 11:43:37,383 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 11:43:37,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 11:43:37,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1734397996, now seen corresponding path program 1 times [2020-12-02 11:43:37,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 11:43:37,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909342072] [2020-12-02 11:43:37,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 11:43:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 11:43:37,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 11:43:37,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909342072] [2020-12-02 11:43:37,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 11:43:37,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-02 11:43:37,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967536449] [2020-12-02 11:43:37,418 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-02 11:43:37,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 11:43:37,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-02 11:43:37,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-02 11:43:37,421 INFO L87 Difference]: Start difference. First operand 276 states and 690 transitions. Second operand 4 states. [2020-12-02 11:43:37,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 11:43:37,446 INFO L93 Difference]: Finished difference Result 276 states and 682 transitions. [2020-12-02 11:43:37,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-02 11:43:37,447 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-12-02 11:43:37,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 11:43:37,449 INFO L225 Difference]: With dead ends: 276 [2020-12-02 11:43:37,449 INFO L226 Difference]: Without dead ends: 266 [2020-12-02 11:43:37,449 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-02 11:43:37,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-12-02 11:43:37,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-12-02 11:43:37,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-12-02 11:43:37,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 657 transitions. [2020-12-02 11:43:37,457 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 657 transitions. Word has length 22 [2020-12-02 11:43:37,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 11:43:37,459 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 657 transitions. [2020-12-02 11:43:37,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-02 11:43:37,459 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 657 transitions. [2020-12-02 11:43:37,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-02 11:43:37,461 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 11:43:37,461 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 11:43:37,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-02 11:43:37,462 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 11:43:37,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 11:43:37,462 INFO L82 PathProgramCache]: Analyzing trace with hash 652366597, now seen corresponding path program 1 times [2020-12-02 11:43:37,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 11:43:37,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388146693] [2020-12-02 11:43:37,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 11:43:37,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 11:43:37,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 11:43:37,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388146693] [2020-12-02 11:43:37,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 11:43:37,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-02 11:43:37,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124553343] [2020-12-02 11:43:37,490 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-02 11:43:37,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 11:43:37,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-02 11:43:37,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-02 11:43:37,491 INFO L87 Difference]: Start difference. First operand 266 states and 657 transitions. Second operand 4 states. [2020-12-02 11:43:37,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 11:43:37,508 INFO L93 Difference]: Finished difference Result 252 states and 668 transitions. [2020-12-02 11:43:37,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-02 11:43:37,509 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-12-02 11:43:37,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 11:43:37,509 INFO L225 Difference]: With dead ends: 252 [2020-12-02 11:43:37,509 INFO L226 Difference]: Without dead ends: 0 [2020-12-02 11:43:37,510 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-02 11:43:37,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-02 11:43:37,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-02 11:43:37,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-02 11:43:37,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-02 11:43:37,510 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2020-12-02 11:43:37,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 11:43:37,510 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-02 11:43:37,510 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-02 11:43:37,510 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-02 11:43:37,511 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-02 11:43:37,511 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-02 11:43:37,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 11:43:37 BasicIcfg [2020-12-02 11:43:37,514 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 11:43:37,515 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 11:43:37,515 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 11:43:37,515 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 11:43:37,515 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:43:32" (3/4) ... [2020-12-02 11:43:37,519 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-02 11:43:37,525 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2020-12-02 11:43:37,526 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2020-12-02 11:43:37,529 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-12-02 11:43:37,530 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-02 11:43:37,530 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 11:43:37,530 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 11:43:37,593 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-02 11:43:37,593 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 11:43:37,597 INFO L168 Benchmark]: Toolchain (without parser) took 6468.71 ms. Allocated memory was 48.2 MB in the beginning and 142.6 MB in the end (delta: 94.4 MB). Free memory was 23.5 MB in the beginning and 57.2 MB in the end (delta: -33.7 MB). Peak memory consumption was 61.3 MB. Max. memory is 16.1 GB. [2020-12-02 11:43:37,597 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 48.2 MB. Free memory was 29.9 MB in the beginning and 29.8 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 11:43:37,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.34 ms. Allocated memory was 48.2 MB in the beginning and 62.9 MB in the end (delta: 14.7 MB). Free memory was 23.3 MB in the beginning and 44.9 MB in the end (delta: -21.6 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2020-12-02 11:43:37,598 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.88 ms. Allocated memory is still 62.9 MB. Free memory was 44.9 MB in the beginning and 43.2 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 11:43:37,599 INFO L168 Benchmark]: Boogie Preprocessor took 39.27 ms. Allocated memory is still 62.9 MB. Free memory was 43.2 MB in the beginning and 41.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 11:43:37,601 INFO L168 Benchmark]: RCFGBuilder took 528.89 ms. Allocated memory is still 62.9 MB. Free memory was 41.4 MB in the beginning and 32.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2020-12-02 11:43:37,601 INFO L168 Benchmark]: TraceAbstraction took 5080.19 ms. Allocated memory was 62.9 MB in the beginning and 142.6 MB in the end (delta: 79.7 MB). Free memory was 31.3 MB in the beginning and 59.3 MB in the end (delta: -27.9 MB). Peak memory consumption was 50.6 MB. Max. memory is 16.1 GB. [2020-12-02 11:43:37,602 INFO L168 Benchmark]: Witness Printer took 78.16 ms. Allocated memory is still 142.6 MB. Free memory was 59.3 MB in the beginning and 57.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 11:43:37,610 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 48.2 MB. Free memory was 29.9 MB in the beginning and 29.8 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 689.34 ms. Allocated memory was 48.2 MB in the beginning and 62.9 MB in the end (delta: 14.7 MB). Free memory was 23.3 MB in the beginning and 44.9 MB in the end (delta: -21.6 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.88 ms. Allocated memory is still 62.9 MB. Free memory was 44.9 MB in the beginning and 43.2 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.27 ms. Allocated memory is still 62.9 MB. Free memory was 43.2 MB in the beginning and 41.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 528.89 ms. Allocated memory is still 62.9 MB. Free memory was 41.4 MB in the beginning and 32.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5080.19 ms. Allocated memory was 62.9 MB in the beginning and 142.6 MB in the end (delta: 79.7 MB). Free memory was 31.3 MB in the beginning and 59.3 MB in the end (delta: -27.9 MB). Peak memory consumption was 50.6 MB. Max. memory is 16.1 GB. * Witness Printer took 78.16 ms. Allocated memory is still 142.6 MB. Free memory was 59.3 MB in the beginning and 57.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 2913 VarBasedMoverChecksPositive, 120 VarBasedMoverChecksNegative, 61 SemBasedMoverChecksPositive, 59 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 838 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.3s, 106 PlacesBefore, 57 PlacesAfterwards, 125 TransitionsBefore, 70 TransitionsAfterwards, 4816 CoEnabledTransitionPairs, 5 FixpointIterations, 22 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 19 ConcurrentYvCompositions, 6 ChoiceCompositions, 77 TotalNumberOfCompositions, 15085 MoverChecksTotal - PositiveResult [Line: 834]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 764]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 100 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 753 SDtfs, 378 SDslu, 609 SDs, 0 SdLazy, 144 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=920occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 1056 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 165 NumberOfCodeBlocks, 165 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 155 ConstructedInterpolants, 0 QuantifiedInterpolants, 4775 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...