./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-atomic/time_var_mutex.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 997cd7c3 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/time_var_mutex.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 27e2f315de443e202cbc54a2cdc7db0fe3a55a0e ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-997cd7c-m [2021-09-22 14:27:10,997 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-09-22 14:27:10,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-09-22 14:27:11,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-09-22 14:27:11,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-09-22 14:27:11,041 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-09-22 14:27:11,042 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-09-22 14:27:11,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-09-22 14:27:11,049 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-09-22 14:27:11,053 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-09-22 14:27:11,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-09-22 14:27:11,057 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-09-22 14:27:11,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-09-22 14:27:11,059 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-09-22 14:27:11,061 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-09-22 14:27:11,064 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-09-22 14:27:11,065 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-09-22 14:27:11,066 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-09-22 14:27:11,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-09-22 14:27:11,073 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-09-22 14:27:11,075 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-09-22 14:27:11,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-09-22 14:27:11,077 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-09-22 14:27:11,078 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-09-22 14:27:11,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-09-22 14:27:11,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-09-22 14:27:11,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-09-22 14:27:11,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-09-22 14:27:11,086 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-09-22 14:27:11,087 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-09-22 14:27:11,087 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-09-22 14:27:11,088 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-09-22 14:27:11,094 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-09-22 14:27:11,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-09-22 14:27:11,095 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-09-22 14:27:11,095 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-09-22 14:27:11,096 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-09-22 14:27:11,096 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-09-22 14:27:11,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-09-22 14:27:11,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-09-22 14:27:11,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-09-22 14:27:11,102 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-09-22 14:27:11,136 INFO L113 SettingsManager]: Loading preferences was successful [2021-09-22 14:27:11,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-09-22 14:27:11,138 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-09-22 14:27:11,138 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-09-22 14:27:11,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-09-22 14:27:11,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-09-22 14:27:11,140 INFO L138 SettingsManager]: * Use SBE=true [2021-09-22 14:27:11,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-09-22 14:27:11,140 INFO L138 SettingsManager]: * sizeof long=4 [2021-09-22 14:27:11,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-09-22 14:27:11,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-09-22 14:27:11,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-09-22 14:27:11,142 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-09-22 14:27:11,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-09-22 14:27:11,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-09-22 14:27:11,142 INFO L138 SettingsManager]: * sizeof long double=12 [2021-09-22 14:27:11,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-09-22 14:27:11,143 INFO L138 SettingsManager]: * Use constant arrays=true [2021-09-22 14:27:11,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-09-22 14:27:11,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-09-22 14:27:11,143 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-09-22 14:27:11,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-09-22 14:27:11,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-09-22 14:27:11,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-09-22 14:27:11,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-09-22 14:27:11,151 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-09-22 14:27:11,151 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-09-22 14:27:11,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-09-22 14:27:11,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-09-22 14:27:11,152 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-09-22 14:27:11,152 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27e2f315de443e202cbc54a2cdc7db0fe3a55a0e [2021-09-22 14:27:11,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-09-22 14:27:11,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-09-22 14:27:11,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-09-22 14:27:11,475 INFO L271 PluginConnector]: Initializing CDTParser... [2021-09-22 14:27:11,476 INFO L275 PluginConnector]: CDTParser initialized [2021-09-22 14:27:11,477 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/time_var_mutex.i [2021-09-22 14:27:11,532 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9caf501b/1ce94069b3894c52b9b586f2716e6a40/FLAG9e8494b4b [2021-09-22 14:27:11,980 INFO L306 CDTParser]: Found 1 translation units. [2021-09-22 14:27:11,980 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/time_var_mutex.i [2021-09-22 14:27:11,992 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9caf501b/1ce94069b3894c52b9b586f2716e6a40/FLAG9e8494b4b [2021-09-22 14:27:12,345 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9caf501b/1ce94069b3894c52b9b586f2716e6a40 [2021-09-22 14:27:12,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-09-22 14:27:12,348 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-09-22 14:27:12,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-09-22 14:27:12,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-09-22 14:27:12,354 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-09-22 14:27:12,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 02:27:12" (1/1) ... [2021-09-22 14:27:12,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11b7c7a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:27:12, skipping insertion in model container [2021-09-22 14:27:12,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 02:27:12" (1/1) ... [2021-09-22 14:27:12,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-09-22 14:27:12,409 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-09-22 14:27:12,617 WARN L228 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/time_var_mutex.i[30247,30260] [2021-09-22 14:27:12,621 WARN L228 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/time_var_mutex.i[30452,30465] [2021-09-22 14:27:12,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-09-22 14:27:12,670 INFO L203 MainTranslator]: Completed pre-run [2021-09-22 14:27:12,697 WARN L228 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/time_var_mutex.i[30247,30260] [2021-09-22 14:27:12,699 WARN L228 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/time_var_mutex.i[30452,30465] [2021-09-22 14:27:12,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-09-22 14:27:12,732 INFO L208 MainTranslator]: Completed translation [2021-09-22 14:27:12,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:27:12 WrapperNode [2021-09-22 14:27:12,732 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-09-22 14:27:12,733 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-09-22 14:27:12,734 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-09-22 14:27:12,734 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-09-22 14:27:12,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:27:12" (1/1) ... [2021-09-22 14:27:12,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:27:12" (1/1) ... [2021-09-22 14:27:12,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-09-22 14:27:12,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-09-22 14:27:12,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-09-22 14:27:12,768 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-09-22 14:27:12,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:27:12" (1/1) ... [2021-09-22 14:27:12,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:27:12" (1/1) ... [2021-09-22 14:27:12,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:27:12" (1/1) ... [2021-09-22 14:27:12,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:27:12" (1/1) ... [2021-09-22 14:27:12,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:27:12" (1/1) ... [2021-09-22 14:27:12,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:27:12" (1/1) ... [2021-09-22 14:27:12,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:27:12" (1/1) ... [2021-09-22 14:27:12,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-09-22 14:27:12,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-09-22 14:27:12,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-09-22 14:27:12,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-09-22 14:27:12,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:27:12" (1/1) ... [2021-09-22 14:27:12,794 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-09-22 14:27:12,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-09-22 14:27:12,816 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-09-22 14:27:12,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-09-22 14:27:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2021-09-22 14:27:12,856 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2021-09-22 14:27:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-09-22 14:27:12,857 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2021-09-22 14:27:12,857 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2021-09-22 14:27:12,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-09-22 14:27:12,857 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-09-22 14:27:12,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-09-22 14:27:12,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-09-22 14:27:12,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-09-22 14:27:12,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-09-22 14:27:12,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-09-22 14:27:12,859 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-09-22 14:27:13,154 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-09-22 14:27:13,154 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-09-22 14:27:13,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 02:27:13 BoogieIcfgContainer [2021-09-22 14:27:13,156 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-09-22 14:27:13,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-09-22 14:27:13,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-09-22 14:27:13,159 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-09-22 14:27:13,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.09 02:27:12" (1/3) ... [2021-09-22 14:27:13,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@740e5b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.09 02:27:13, skipping insertion in model container [2021-09-22 14:27:13,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:27:12" (2/3) ... [2021-09-22 14:27:13,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@740e5b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.09 02:27:13, skipping insertion in model container [2021-09-22 14:27:13,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 02:27:13" (3/3) ... [2021-09-22 14:27:13,162 INFO L111 eAbstractionObserver]: Analyzing ICFG time_var_mutex.i [2021-09-22 14:27:13,166 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-09-22 14:27:13,166 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-09-22 14:27:13,166 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-09-22 14:27:13,166 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-09-22 14:27:13,196 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,196 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,196 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,196 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,196 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,196 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,197 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,197 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,197 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,197 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,197 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,197 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,197 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,198 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,198 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,198 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,199 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,199 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,199 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,199 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,200 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,200 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,200 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,200 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,200 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,200 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,201 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,201 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,201 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,201 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,201 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,202 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,202 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,202 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,202 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,203 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,205 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,205 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,206 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,206 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,206 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,210 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,210 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,210 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,210 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,210 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,211 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:27:13,216 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-09-22 14:27:13,249 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-09-22 14:27:13,254 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-09-22 14:27:13,255 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-09-22 14:27:13,277 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-09-22 14:27:13,287 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 94 transitions, 204 flow [2021-09-22 14:27:13,293 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 94 transitions, 204 flow [2021-09-22 14:27:13,294 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 94 transitions, 204 flow [2021-09-22 14:27:13,353 INFO L129 PetriNetUnfolder]: 5/92 cut-off events. [2021-09-22 14:27:13,353 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-09-22 14:27:13,356 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 92 events. 5/92 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 94 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 64. Up to 3 conditions per place. [2021-09-22 14:27:13,359 INFO L116 LiptonReduction]: Number of co-enabled transitions 1042 [2021-09-22 14:27:17,442 INFO L131 LiptonReduction]: Checked pairs total: 2783 [2021-09-22 14:27:17,443 INFO L133 LiptonReduction]: Total number of compositions: 83 [2021-09-22 14:27:17,449 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 29 transitions, 74 flow [2021-09-22 14:27:17,469 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 148 states, 144 states have (on average 2.5902777777777777) internal successors, (373), 147 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:27:17,471 INFO L276 IsEmpty]: Start isEmpty. Operand has 148 states, 144 states have (on average 2.5902777777777777) internal successors, (373), 147 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:27:17,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-09-22 14:27:17,475 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:27:17,476 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-09-22 14:27:17,477 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION === [allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:27:17,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:27:17,480 INFO L82 PathProgramCache]: Analyzing trace with hash 339983356, now seen corresponding path program 1 times [2021-09-22 14:27:17,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:27:17,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506026000] [2021-09-22 14:27:17,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:27:17,488 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:27:17,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:27:17,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:27:17,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:27:17,630 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506026000] [2021-09-22 14:27:17,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506026000] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:27:17,630 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:27:17,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-09-22 14:27:17,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177204158] [2021-09-22 14:27:17,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-09-22 14:27:17,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:27:17,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-09-22 14:27:17,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:27:17,652 INFO L87 Difference]: Start difference. First operand has 148 states, 144 states have (on average 2.5902777777777777) internal successors, (373), 147 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:27:17,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:27:17,684 INFO L93 Difference]: Finished difference Result 148 states and 331 transitions. [2021-09-22 14:27:17,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-09-22 14:27:17,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-09-22 14:27:17,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:27:17,702 INFO L225 Difference]: With dead ends: 148 [2021-09-22 14:27:17,703 INFO L226 Difference]: Without dead ends: 142 [2021-09-22 14:27:17,704 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:27:17,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-09-22 14:27:17,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2021-09-22 14:27:17,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 139 states have (on average 2.2805755395683454) internal successors, (317), 141 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:27:17,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 317 transitions. [2021-09-22 14:27:17,753 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 317 transitions. Word has length 5 [2021-09-22 14:27:17,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:27:17,753 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 317 transitions. [2021-09-22 14:27:17,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:27:17,754 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 317 transitions. [2021-09-22 14:27:17,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-09-22 14:27:17,754 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:27:17,755 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:27:17,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-09-22 14:27:17,755 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION === [allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:27:17,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:27:17,756 INFO L82 PathProgramCache]: Analyzing trace with hash 367746459, now seen corresponding path program 1 times [2021-09-22 14:27:17,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:27:17,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182094857] [2021-09-22 14:27:17,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:27:17,757 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:27:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:27:17,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:27:17,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:27:17,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182094857] [2021-09-22 14:27:17,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182094857] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:27:17,807 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:27:17,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-09-22 14:27:17,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563089009] [2021-09-22 14:27:17,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-09-22 14:27:17,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:27:17,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-09-22 14:27:17,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:27:17,810 INFO L87 Difference]: Start difference. First operand 142 states and 317 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:27:17,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:27:17,826 INFO L93 Difference]: Finished difference Result 150 states and 314 transitions. [2021-09-22 14:27:17,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-09-22 14:27:17,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-09-22 14:27:17,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:27:17,827 INFO L225 Difference]: With dead ends: 150 [2021-09-22 14:27:17,828 INFO L226 Difference]: Without dead ends: 128 [2021-09-22 14:27:17,828 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:27:17,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-09-22 14:27:17,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 120. [2021-09-22 14:27:17,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 116 states have (on average 2.2413793103448274) internal successors, (260), 119 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:27:17,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 260 transitions. [2021-09-22 14:27:17,836 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 260 transitions. Word has length 7 [2021-09-22 14:27:17,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:27:17,837 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 260 transitions. [2021-09-22 14:27:17,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:27:17,837 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 260 transitions. [2021-09-22 14:27:17,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-09-22 14:27:17,838 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:27:17,838 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:27:17,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-09-22 14:27:17,839 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION === [allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:27:17,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:27:17,839 INFO L82 PathProgramCache]: Analyzing trace with hash 911019623, now seen corresponding path program 1 times [2021-09-22 14:27:17,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:27:17,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564402477] [2021-09-22 14:27:17,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:27:17,840 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:27:17,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:27:17,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:27:17,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:27:17,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564402477] [2021-09-22 14:27:17,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564402477] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:27:17,881 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:27:17,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-09-22 14:27:17,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803143371] [2021-09-22 14:27:17,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-09-22 14:27:17,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:27:17,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-09-22 14:27:17,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:27:17,883 INFO L87 Difference]: Start difference. First operand 120 states and 260 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:27:17,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:27:17,899 INFO L93 Difference]: Finished difference Result 112 states and 233 transitions. [2021-09-22 14:27:17,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-09-22 14:27:17,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-09-22 14:27:17,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:27:17,900 INFO L225 Difference]: With dead ends: 112 [2021-09-22 14:27:17,901 INFO L226 Difference]: Without dead ends: 76 [2021-09-22 14:27:17,901 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:27:17,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-09-22 14:27:17,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2021-09-22 14:27:17,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 73 states have (on average 1.904109589041096) internal successors, (139), 75 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:27:17,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 139 transitions. [2021-09-22 14:27:17,905 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 139 transitions. Word has length 8 [2021-09-22 14:27:17,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:27:17,906 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 139 transitions. [2021-09-22 14:27:17,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:27:17,906 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 139 transitions. [2021-09-22 14:27:17,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-09-22 14:27:17,907 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:27:17,907 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:27:17,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-09-22 14:27:17,908 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION === [allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:27:17,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:27:17,908 INFO L82 PathProgramCache]: Analyzing trace with hash 795355285, now seen corresponding path program 1 times [2021-09-22 14:27:17,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:27:17,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202169672] [2021-09-22 14:27:17,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:27:17,909 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:27:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:27:17,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:27:17,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:27:17,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202169672] [2021-09-22 14:27:17,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202169672] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:27:17,952 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:27:17,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-09-22 14:27:17,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341665199] [2021-09-22 14:27:17,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-09-22 14:27:17,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:27:17,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-09-22 14:27:17,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:27:17,954 INFO L87 Difference]: Start difference. First operand 76 states and 139 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:27:17,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:27:17,960 INFO L93 Difference]: Finished difference Result 76 states and 133 transitions. [2021-09-22 14:27:17,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-09-22 14:27:17,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-09-22 14:27:17,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:27:17,962 INFO L225 Difference]: With dead ends: 76 [2021-09-22 14:27:17,962 INFO L226 Difference]: Without dead ends: 64 [2021-09-22 14:27:17,962 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:27:17,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-09-22 14:27:17,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-09-22 14:27:17,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 61 states have (on average 1.8360655737704918) internal successors, (112), 63 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:27:17,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 112 transitions. [2021-09-22 14:27:17,967 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 112 transitions. Word has length 12 [2021-09-22 14:27:17,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:27:17,967 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 112 transitions. [2021-09-22 14:27:17,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:27:17,968 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 112 transitions. [2021-09-22 14:27:17,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-09-22 14:27:17,968 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:27:17,968 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:27:17,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-09-22 14:27:17,969 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION === [allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:27:17,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:27:17,969 INFO L82 PathProgramCache]: Analyzing trace with hash 969105193, now seen corresponding path program 2 times [2021-09-22 14:27:17,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:27:17,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828454932] [2021-09-22 14:27:17,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:27:17,970 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:27:18,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:27:18,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:27:18,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:27:18,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828454932] [2021-09-22 14:27:18,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828454932] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:27:18,065 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:27:18,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-09-22 14:27:18,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541592647] [2021-09-22 14:27:18,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-09-22 14:27:18,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:27:18,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-09-22 14:27:18,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-09-22 14:27:18,069 INFO L87 Difference]: Start difference. First operand 64 states and 112 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:27:18,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:27:18,088 INFO L93 Difference]: Finished difference Result 22 states and 35 transitions. [2021-09-22 14:27:18,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-09-22 14:27:18,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-09-22 14:27:18,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:27:18,089 INFO L225 Difference]: With dead ends: 22 [2021-09-22 14:27:18,089 INFO L226 Difference]: Without dead ends: 0 [2021-09-22 14:27:18,090 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:27:18,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-09-22 14:27:18,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-09-22 14:27:18,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:27:18,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-09-22 14:27:18,091 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-09-22 14:27:18,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:27:18,091 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-09-22 14:27:18,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:27:18,091 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-09-22 14:27:18,092 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-09-22 14:27:18,094 INFO L764 garLoopResultBuilder]: Registering result SAFE for location allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-09-22 14:27:18,094 INFO L764 garLoopResultBuilder]: Registering result SAFE for location de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-09-22 14:27:18,094 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-09-22 14:27:18,094 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-09-22 14:27:18,095 INFO L764 garLoopResultBuilder]: Registering result SAFE for location allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-09-22 14:27:18,095 INFO L764 garLoopResultBuilder]: Registering result SAFE for location de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-09-22 14:27:18,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-09-22 14:27:18,099 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-09-22 14:27:18,099 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-09-22 14:27:18,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.09 02:27:18 BasicIcfg [2021-09-22 14:27:18,101 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-09-22 14:27:18,101 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-09-22 14:27:18,102 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-09-22 14:27:18,102 INFO L275 PluginConnector]: Witness Printer initialized [2021-09-22 14:27:18,102 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 02:27:13" (3/4) ... [2021-09-22 14:27:18,104 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-09-22 14:27:18,109 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure allocator [2021-09-22 14:27:18,109 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure de_allocator [2021-09-22 14:27:18,112 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-09-22 14:27:18,112 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-09-22 14:27:18,112 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-09-22 14:27:18,112 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-09-22 14:27:18,138 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-09-22 14:27:18,139 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-09-22 14:27:18,140 INFO L168 Benchmark]: Toolchain (without parser) took 5790.84 ms. Allocated memory was 52.4 MB in the beginning and 81.8 MB in the end (delta: 29.4 MB). Free memory was 28.6 MB in the beginning and 50.8 MB in the end (delta: -22.2 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2021-09-22 14:27:18,140 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 52.4 MB. Free memory was 34.8 MB in the beginning and 34.8 MB in the end (delta: 71.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-09-22 14:27:18,141 INFO L168 Benchmark]: CACSL2BoogieTranslator took 381.49 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 28.3 MB in the beginning and 42.2 MB in the end (delta: -13.9 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-09-22 14:27:18,141 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.09 ms. Allocated memory is still 67.1 MB. Free memory was 42.0 MB in the beginning and 40.1 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-09-22 14:27:18,142 INFO L168 Benchmark]: Boogie Preprocessor took 19.50 ms. Allocated memory is still 67.1 MB. Free memory was 40.1 MB in the beginning and 38.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-09-22 14:27:18,142 INFO L168 Benchmark]: RCFGBuilder took 367.81 ms. Allocated memory is still 67.1 MB. Free memory was 38.8 MB in the beginning and 40.7 MB in the end (delta: -2.0 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. [2021-09-22 14:27:18,142 INFO L168 Benchmark]: TraceAbstraction took 4943.89 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 40.2 MB in the beginning and 53.5 MB in the end (delta: -13.2 MB). Peak memory consumption was 1.1 MB. Max. memory is 16.1 GB. [2021-09-22 14:27:18,143 INFO L168 Benchmark]: Witness Printer took 37.35 ms. Allocated memory is still 81.8 MB. Free memory was 53.5 MB in the beginning and 50.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-09-22 14:27:18,145 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 52.4 MB. Free memory was 34.8 MB in the beginning and 34.8 MB in the end (delta: 71.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 381.49 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 28.3 MB in the beginning and 42.2 MB in the end (delta: -13.9 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.09 ms. Allocated memory is still 67.1 MB. Free memory was 42.0 MB in the beginning and 40.1 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.50 ms. Allocated memory is still 67.1 MB. Free memory was 40.1 MB in the beginning and 38.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 367.81 ms. Allocated memory is still 67.1 MB. Free memory was 38.8 MB in the beginning and 40.7 MB in the end (delta: -2.0 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4943.89 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 40.2 MB in the beginning and 53.5 MB in the end (delta: -13.2 MB). Peak memory consumption was 1.1 MB. Max. memory is 16.1 GB. * Witness Printer took 37.35 ms. Allocated memory is still 81.8 MB. Free memory was 53.5 MB in the beginning and 50.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4149.9ms, 96 PlacesBefore, 32 PlacesAfterwards, 94 TransitionsBefore, 29 TransitionsAfterwards, 1042 CoEnabledTransitionPairs, 6 FixpointIterations, 42 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 83 TotalNumberOfCompositions, 2783 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1746, positive: 1614, positive conditional: 0, positive unconditional: 1614, negative: 132, negative conditional: 0, negative unconditional: 132, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 858, positive: 822, positive conditional: 0, positive unconditional: 822, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 858, positive: 782, positive conditional: 0, positive unconditional: 782, negative: 76, negative conditional: 0, negative unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 76, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 117, positive: 46, positive conditional: 0, positive unconditional: 46, negative: 71, negative conditional: 0, negative unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1746, positive: 792, positive conditional: 0, positive unconditional: 792, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 858, unknown conditional: 0, unknown unconditional: 858] , Statistics on independence cache: Total cache size (in pairs): 157, Positive cache size: 140, Positive conditional cache size: 0, Positive unconditional cache size: 140, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 702]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 710]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 123 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 4849.6ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 8.8ms, AutomataDifference: 139.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4214.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 111 SDtfs, 62 SDslu, 48 SDs, 0 SdLazy, 20 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 41.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=148occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 55.7ms AutomataMinimizationTime, 5 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 10.8ms SsaConstructionTime, 108.6ms SatisfiabilityAnalysisTime, 173.1ms InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 75 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-09-22 14:27:18,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...