./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/security.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8c2bbc92 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/security.wvr.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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 dc91ecb3e6b970c4bc2c1febc35af98993ef5503 .............................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-03 11:42:35,978 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-03 11:42:35,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-03 11:42:36,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-03 11:42:36,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-03 11:42:36,047 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-03 11:42:36,052 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-03 11:42:36,057 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-03 11:42:36,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-03 11:42:36,067 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-03 11:42:36,069 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-03 11:42:36,075 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-03 11:42:36,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-03 11:42:36,080 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-03 11:42:36,082 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-03 11:42:36,087 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-03 11:42:36,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-03 11:42:36,090 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-03 11:42:36,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-03 11:42:36,102 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-03 11:42:36,104 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-03 11:42:36,106 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-03 11:42:36,108 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-03 11:42:36,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-03 11:42:36,120 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-03 11:42:36,121 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-03 11:42:36,121 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-03 11:42:36,124 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-03 11:42:36,125 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-03 11:42:36,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-03 11:42:36,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-03 11:42:36,128 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-03 11:42:36,130 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-03 11:42:36,131 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-03 11:42:36,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-03 11:42:36,134 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-03 11:42:36,135 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-03 11:42:36,135 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-03 11:42:36,136 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-03 11:42:36,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-03 11:42:36,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-03 11:42:36,145 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-03 11:42:36,201 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-03 11:42:36,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-03 11:42:36,202 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-03 11:42:36,203 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-03 11:42:36,206 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-03 11:42:36,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-03 11:42:36,207 INFO L138 SettingsManager]: * Use SBE=true [2021-10-03 11:42:36,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-03 11:42:36,208 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-03 11:42:36,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-03 11:42:36,209 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-03 11:42:36,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-03 11:42:36,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-03 11:42:36,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-03 11:42:36,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-03 11:42:36,210 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-03 11:42:36,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-03 11:42:36,211 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-03 11:42:36,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-03 11:42:36,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-03 11:42:36,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-03 11:42:36,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-03 11:42:36,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-03 11:42:36,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-03 11:42:36,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-03 11:42:36,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-03 11:42:36,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-03 11:42:36,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-03 11:42:36,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-03 11:42:36,214 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-03 11:42:36,215 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc91ecb3e6b970c4bc2c1febc35af98993ef5503 [2021-10-03 11:42:36,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-03 11:42:36,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-03 11:42:36,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-03 11:42:36,703 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-03 11:42:36,704 INFO L275 PluginConnector]: CDTParser initialized [2021-10-03 11:42:36,705 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/security.wvr.c [2021-10-03 11:42:36,781 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/22916daaf/deb8d237db244ccda7a3bf7c7d6686d5/FLAGf2521d6ee [2021-10-03 11:42:37,500 INFO L306 CDTParser]: Found 1 translation units. [2021-10-03 11:42:37,501 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/security.wvr.c [2021-10-03 11:42:37,501 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-10-03 11:42:37,501 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2021-10-03 11:42:37,508 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/22916daaf/deb8d237db244ccda7a3bf7c7d6686d5/FLAGf2521d6ee [2021-10-03 11:42:37,878 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/22916daaf/deb8d237db244ccda7a3bf7c7d6686d5 [2021-10-03 11:42:37,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-03 11:42:37,887 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-03 11:42:37,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-03 11:42:37,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-03 11:42:37,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-03 11:42:37,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 11:42:37" (1/1) ... [2021-10-03 11:42:37,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53c4ee0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:42:37, skipping insertion in model container [2021-10-03 11:42:37,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 11:42:37" (1/1) ... [2021-10-03 11:42:37,906 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-03 11:42:37,924 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-03 11:42:38,088 WARN L612 FunctionHandler]: implicit declaration of function assert [2021-10-03 11:42:38,132 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/security.wvr.c[878,891] [2021-10-03 11:42:38,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-03 11:42:38,148 INFO L203 MainTranslator]: Completed pre-run [2021-10-03 11:42:38,161 WARN L612 FunctionHandler]: implicit declaration of function assert [2021-10-03 11:42:38,170 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/security.wvr.c[878,891] [2021-10-03 11:42:38,172 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-03 11:42:38,188 INFO L208 MainTranslator]: Completed translation [2021-10-03 11:42:38,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:42:38 WrapperNode [2021-10-03 11:42:38,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-03 11:42:38,191 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-03 11:42:38,191 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-03 11:42:38,191 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-03 11:42:38,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:42:38" (1/1) ... [2021-10-03 11:42:38,209 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:42:38" (1/1) ... [2021-10-03 11:42:38,232 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-03 11:42:38,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-03 11:42:38,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-03 11:42:38,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-03 11:42:38,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:42:38" (1/1) ... [2021-10-03 11:42:38,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:42:38" (1/1) ... [2021-10-03 11:42:38,246 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:42:38" (1/1) ... [2021-10-03 11:42:38,247 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:42:38" (1/1) ... [2021-10-03 11:42:38,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:42:38" (1/1) ... [2021-10-03 11:42:38,255 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:42:38" (1/1) ... [2021-10-03 11:42:38,256 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:42:38" (1/1) ... [2021-10-03 11:42:38,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-03 11:42:38,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-03 11:42:38,261 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-03 11:42:38,261 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-03 11:42:38,262 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:42:38" (1/1) ... [2021-10-03 11:42:38,272 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-03 11:42:38,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-03 11:42:38,304 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-03 11:42:38,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-03 11:42:38,371 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-03 11:42:38,371 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-03 11:42:38,371 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-03 11:42:38,371 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-03 11:42:38,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-03 11:42:38,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-03 11:42:38,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-03 11:42:38,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-03 11:42:38,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-03 11:42:38,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-03 11:42:38,374 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-03 11:42:38,643 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-03 11:42:38,644 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-03 11:42:38,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 11:42:38 BoogieIcfgContainer [2021-10-03 11:42:38,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-03 11:42:38,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-03 11:42:38,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-03 11:42:38,656 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-03 11:42:38,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 11:42:37" (1/3) ... [2021-10-03 11:42:38,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a27321c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 11:42:38, skipping insertion in model container [2021-10-03 11:42:38,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:42:38" (2/3) ... [2021-10-03 11:42:38,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a27321c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 11:42:38, skipping insertion in model container [2021-10-03 11:42:38,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 11:42:38" (3/3) ... [2021-10-03 11:42:38,661 INFO L111 eAbstractionObserver]: Analyzing ICFG security.wvr.c [2021-10-03 11:42:38,669 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-03 11:42:38,669 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-03 11:42:38,669 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-03 11:42:38,670 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-03 11:42:38,717 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:42:38,717 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:42:38,718 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:42:38,718 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:42:38,719 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:42:38,719 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:42:38,720 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:42:38,721 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:42:38,722 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:42:38,724 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:42:38,727 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:42:38,728 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:42:38,728 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:42:38,729 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:42:38,730 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:42:38,731 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:42:38,740 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:42:38,742 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:42:38,744 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:42:38,753 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:42:38,757 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:42:38,757 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:42:38,774 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-03 11:42:38,861 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-03 11:42:38,871 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 [2021-10-03 11:42:38,871 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-03 11:42:38,890 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-03 11:42:38,906 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 67 transitions, 150 flow [2021-10-03 11:42:38,910 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 67 transitions, 150 flow [2021-10-03 11:42:38,913 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 67 transitions, 150 flow [2021-10-03 11:42:38,963 INFO L129 PetriNetUnfolder]: 3/65 cut-off events. [2021-10-03 11:42:38,964 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-03 11:42:38,968 INFO L84 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 65 events. 3/65 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2021-10-03 11:42:38,971 INFO L116 LiptonReduction]: Number of co-enabled transitions 432 [2021-10-03 11:42:41,093 INFO L131 LiptonReduction]: Checked pairs total: 445 [2021-10-03 11:42:41,093 INFO L133 LiptonReduction]: Total number of compositions: 59 [2021-10-03 11:42:41,107 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 14 transitions, 44 flow [2021-10-03 11:42:41,121 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 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) [2021-10-03 11:42:41,124 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 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) [2021-10-03 11:42:41,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-03 11:42:41,132 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 11:42:41,133 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-03 11:42:41,133 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-03 11:42:41,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 11:42:41,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1107014301, now seen corresponding path program 1 times [2021-10-03 11:42:41,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 11:42:41,153 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371770085] [2021-10-03 11:42:41,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 11:42:41,155 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 11:42:41,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 11:42:41,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-03 11:42:41,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 11:42:41,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371770085] [2021-10-03 11:42:41,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371770085] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 11:42:41,566 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 11:42:41,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-03 11:42:41,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613594056] [2021-10-03 11:42:41,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-03 11:42:41,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 11:42:41,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-03 11:42:41,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-03 11:42:41,595 INFO L87 Difference]: Start difference. First operand has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 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 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-10-03 11:42:41,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 11:42:41,635 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2021-10-03 11:42:41,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-03 11:42:41,637 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2021-10-03 11:42:41,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 11:42:41,648 INFO L225 Difference]: With dead ends: 25 [2021-10-03 11:42:41,648 INFO L226 Difference]: Without dead ends: 18 [2021-10-03 11:42:41,649 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-03 11:42:41,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-10-03 11:42:41,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-03 11:42:41,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 17 states have internal predecessors, (23), 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) [2021-10-03 11:42:41,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2021-10-03 11:42:41,688 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 11 [2021-10-03 11:42:41,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 11:42:41,688 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-10-03 11:42:41,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-10-03 11:42:41,689 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2021-10-03 11:42:41,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-03 11:42:41,690 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 11:42:41,690 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-03 11:42:41,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-03 11:42:41,691 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-03 11:42:41,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 11:42:41,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1885745171, now seen corresponding path program 2 times [2021-10-03 11:42:41,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 11:42:41,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048251592] [2021-10-03 11:42:41,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 11:42:41,693 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 11:42:41,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 11:42:41,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-03 11:42:41,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 11:42:41,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048251592] [2021-10-03 11:42:41,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048251592] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 11:42:41,792 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 11:42:41,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-03 11:42:41,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502937483] [2021-10-03 11:42:41,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-03 11:42:41,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 11:42:41,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-03 11:42:41,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-03 11:42:41,796 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-10-03 11:42:41,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 11:42:41,813 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2021-10-03 11:42:41,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-03 11:42:41,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2021-10-03 11:42:41,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 11:42:41,814 INFO L225 Difference]: With dead ends: 17 [2021-10-03 11:42:41,814 INFO L226 Difference]: Without dead ends: 0 [2021-10-03 11:42:41,815 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-03 11:42:41,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-03 11:42:41,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-03 11:42:41,816 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) [2021-10-03 11:42:41,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-03 11:42:41,816 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-10-03 11:42:41,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 11:42:41,816 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-03 11:42:41,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-10-03 11:42:41,817 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-03 11:42:41,817 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-03 11:42:41,820 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-03 11:42:41,820 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-03 11:42:41,821 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-03 11:42:41,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-03 11:42:41,826 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-03 11:42:41,826 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-03 11:42:41,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 11:42:41 BasicIcfg [2021-10-03 11:42:41,829 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-03 11:42:41,829 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-03 11:42:41,829 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-03 11:42:41,830 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-03 11:42:41,830 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 11:42:38" (3/4) ... [2021-10-03 11:42:41,834 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-03 11:42:41,842 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-03 11:42:41,842 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-03 11:42:41,847 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-10-03 11:42:41,848 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-03 11:42:41,848 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-03 11:42:41,892 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-10-03 11:42:41,893 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-03 11:42:41,895 INFO L168 Benchmark]: Toolchain (without parser) took 4011.28 ms. Allocated memory was 50.3 MB in the beginning and 75.5 MB in the end (delta: 25.2 MB). Free memory was 26.5 MB in the beginning and 47.4 MB in the end (delta: -20.9 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2021-10-03 11:42:41,896 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 50.3 MB. Free memory was 29.2 MB in the beginning and 29.1 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-03 11:42:41,896 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.45 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 26.2 MB in the beginning and 40.4 MB in the end (delta: -14.2 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2021-10-03 11:42:41,897 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.75 ms. Allocated memory is still 62.9 MB. Free memory was 40.4 MB in the beginning and 38.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-03 11:42:41,898 INFO L168 Benchmark]: Boogie Preprocessor took 25.91 ms. Allocated memory is still 62.9 MB. Free memory was 38.9 MB in the beginning and 38.0 MB in the end (delta: 897.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-03 11:42:41,898 INFO L168 Benchmark]: RCFGBuilder took 387.55 ms. Allocated memory is still 62.9 MB. Free memory was 38.0 MB in the beginning and 42.7 MB in the end (delta: -4.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-03 11:42:41,899 INFO L168 Benchmark]: TraceAbstraction took 3178.95 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 42.2 MB in the beginning and 50.0 MB in the end (delta: -7.8 MB). Peak memory consumption was 6.2 MB. Max. memory is 16.1 GB. [2021-10-03 11:42:41,900 INFO L168 Benchmark]: Witness Printer took 63.41 ms. Allocated memory is still 75.5 MB. Free memory was 50.0 MB in the beginning and 47.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-03 11:42:41,904 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 50.3 MB. Free memory was 29.2 MB in the beginning and 29.1 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 300.45 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 26.2 MB in the beginning and 40.4 MB in the end (delta: -14.2 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.75 ms. Allocated memory is still 62.9 MB. Free memory was 40.4 MB in the beginning and 38.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.91 ms. Allocated memory is still 62.9 MB. Free memory was 38.9 MB in the beginning and 38.0 MB in the end (delta: 897.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 387.55 ms. Allocated memory is still 62.9 MB. Free memory was 38.0 MB in the beginning and 42.7 MB in the end (delta: -4.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3178.95 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 42.2 MB in the beginning and 50.0 MB in the end (delta: -7.8 MB). Peak memory consumption was 6.2 MB. Max. memory is 16.1 GB. * Witness Printer took 63.41 ms. Allocated memory is still 75.5 MB. Free memory was 50.0 MB in the beginning and 47.4 MB in the end (delta: 2.6 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 Lipton Reduction Statistics: ReductionTime: 2183.1ms, 71 PlacesBefore, 21 PlacesAfterwards, 67 TransitionsBefore, 14 TransitionsAfterwards, 432 CoEnabledTransitionPairs, 6 FixpointIterations, 31 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 3 ChoiceCompositions, 59 TotalNumberOfCompositions, 445 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 445, positive: 445, positive conditional: 0, positive unconditional: 445, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 321, positive: 321, positive conditional: 0, positive unconditional: 321, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 321, positive: 321, positive conditional: 0, positive unconditional: 321, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 445, positive: 124, positive conditional: 0, positive unconditional: 124, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 321, unknown conditional: 0, unknown unconditional: 321] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 12, Positive conditional cache size: 0, Positive unconditional cache size: 12, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - 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: 51]: 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, 85 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2966.7ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 11.1ms, AutomataDifference: 93.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2249.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 29 SDtfs, 23 SDslu, 23 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 38.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 19.8ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 14.2ms SsaConstructionTime, 178.9ms SatisfiabilityAnalysisTime, 207.5ms InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 114 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-03 11:42:41,970 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...