./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl/node-symm.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/chl/node-symm.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 2a8f289eec37c614fe3017f57788b710db5dbd54 ....................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 11:57:22,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-03 11:57:22,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-03 11:57:22,163 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-03 11:57:22,164 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-03 11:57:22,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-03 11:57:22,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-03 11:57:22,174 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-03 11:57:22,178 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-03 11:57:22,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-03 11:57:22,181 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-03 11:57:22,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-03 11:57:22,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-03 11:57:22,189 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-03 11:57:22,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-03 11:57:22,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-03 11:57:22,198 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-03 11:57:22,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-03 11:57:22,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-03 11:57:22,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-03 11:57:22,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-03 11:57:22,214 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-03 11:57:22,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-03 11:57:22,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-03 11:57:22,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-03 11:57:22,220 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-03 11:57:22,220 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-03 11:57:22,225 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-03 11:57:22,226 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-03 11:57:22,227 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-03 11:57:22,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-03 11:57:22,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-03 11:57:22,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-03 11:57:22,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-03 11:57:22,236 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-03 11:57:22,236 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-03 11:57:22,237 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-03 11:57:22,238 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-03 11:57:22,238 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-03 11:57:22,239 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-03 11:57:22,241 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-03 11:57:22,248 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 11:57:22,292 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-03 11:57:22,292 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-03 11:57:22,293 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-03 11:57:22,294 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-03 11:57:22,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-03 11:57:22,297 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-03 11:57:22,297 INFO L138 SettingsManager]: * Use SBE=true [2021-10-03 11:57:22,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-03 11:57:22,298 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-03 11:57:22,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-03 11:57:22,299 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-03 11:57:22,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-03 11:57:22,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-03 11:57:22,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-03 11:57:22,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-03 11:57:22,301 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-03 11:57:22,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-03 11:57:22,301 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-03 11:57:22,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-03 11:57:22,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-03 11:57:22,302 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-03 11:57:22,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-03 11:57:22,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-03 11:57:22,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-03 11:57:22,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-03 11:57:22,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-03 11:57:22,304 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-03 11:57:22,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-03 11:57:22,304 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-03 11:57:22,304 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-03 11:57:22,305 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a8f289eec37c614fe3017f57788b710db5dbd54 [2021-10-03 11:57:22,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-03 11:57:22,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-03 11:57:22,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-03 11:57:22,715 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-03 11:57:22,716 INFO L275 PluginConnector]: CDTParser initialized [2021-10-03 11:57:22,717 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl/node-symm.wvr.c [2021-10-03 11:57:22,790 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8d16456f6/4c2e060178484fda941c7922a6c454c8/FLAG57d6db708 [2021-10-03 11:57:23,388 INFO L306 CDTParser]: Found 1 translation units. [2021-10-03 11:57:23,390 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/node-symm.wvr.c [2021-10-03 11:57:23,390 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-10-03 11:57:23,390 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2021-10-03 11:57:23,400 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8d16456f6/4c2e060178484fda941c7922a6c454c8/FLAG57d6db708 [2021-10-03 11:57:23,707 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8d16456f6/4c2e060178484fda941c7922a6c454c8 [2021-10-03 11:57:23,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-03 11:57:23,716 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-03 11:57:23,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-03 11:57:23,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-03 11:57:23,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-03 11:57:23,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 11:57:23" (1/1) ... [2021-10-03 11:57:23,724 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@466ea7d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:23, skipping insertion in model container [2021-10-03 11:57:23,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 11:57:23" (1/1) ... [2021-10-03 11:57:23,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-03 11:57:23,753 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-03 11:57:23,894 WARN L612 FunctionHandler]: implicit declaration of function assert [2021-10-03 11:57:23,960 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/chl/node-symm.wvr.c[2115,2128] [2021-10-03 11:57:23,977 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-03 11:57:23,987 INFO L203 MainTranslator]: Completed pre-run [2021-10-03 11:57:24,000 WARN L612 FunctionHandler]: implicit declaration of function assert [2021-10-03 11:57:24,016 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/chl/node-symm.wvr.c[2115,2128] [2021-10-03 11:57:24,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-03 11:57:24,038 INFO L208 MainTranslator]: Completed translation [2021-10-03 11:57:24,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:24 WrapperNode [2021-10-03 11:57:24,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-03 11:57:24,040 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-03 11:57:24,041 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-03 11:57:24,041 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-03 11:57:24,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:24" (1/1) ... [2021-10-03 11:57:24,060 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:24" (1/1) ... [2021-10-03 11:57:24,090 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-03 11:57:24,091 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-03 11:57:24,092 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-03 11:57:24,092 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-03 11:57:24,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:24" (1/1) ... [2021-10-03 11:57:24,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:24" (1/1) ... [2021-10-03 11:57:24,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:24" (1/1) ... [2021-10-03 11:57:24,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:24" (1/1) ... [2021-10-03 11:57:24,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:24" (1/1) ... [2021-10-03 11:57:24,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:24" (1/1) ... [2021-10-03 11:57:24,126 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:24" (1/1) ... [2021-10-03 11:57:24,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-03 11:57:24,132 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-03 11:57:24,132 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-03 11:57:24,133 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-03 11:57:24,134 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:24" (1/1) ... [2021-10-03 11:57:24,147 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-03 11:57:24,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-03 11:57:24,189 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 11:57:24,214 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 11:57:24,275 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-03 11:57:24,275 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-03 11:57:24,276 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-03 11:57:24,276 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-03 11:57:24,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-03 11:57:24,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-03 11:57:24,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-03 11:57:24,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-03 11:57:24,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-03 11:57:24,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-03 11:57:24,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-03 11:57:24,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-03 11:57:24,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-03 11:57:24,290 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 11:57:25,316 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-03 11:57:25,316 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-10-03 11:57:25,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 11:57:25 BoogieIcfgContainer [2021-10-03 11:57:25,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-03 11:57:25,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-03 11:57:25,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-03 11:57:25,329 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-03 11:57:25,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 11:57:23" (1/3) ... [2021-10-03 11:57:25,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ef7de3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 11:57:25, skipping insertion in model container [2021-10-03 11:57:25,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:24" (2/3) ... [2021-10-03 11:57:25,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ef7de3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 11:57:25, skipping insertion in model container [2021-10-03 11:57:25,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 11:57:25" (3/3) ... [2021-10-03 11:57:25,334 INFO L111 eAbstractionObserver]: Analyzing ICFG node-symm.wvr.c [2021-10-03 11:57:25,340 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-03 11:57:25,340 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-03 11:57:25,341 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-03 11:57:25,341 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-03 11:57:25,400 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,401 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,401 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,401 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,401 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,401 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,401 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,402 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,402 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,402 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,402 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,402 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,403 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,403 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,403 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,404 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,404 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,413 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,414 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,414 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,414 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,414 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,415 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,415 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,416 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,416 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,416 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,417 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,417 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,417 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,418 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,418 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,419 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,419 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,420 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,420 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,420 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,420 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,420 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,420 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,420 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,421 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,421 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,421 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,421 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,421 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,422 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,422 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,422 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,423 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,423 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,424 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,424 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,424 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,424 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,424 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,424 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,425 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,425 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,425 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,425 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,426 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,426 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,426 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,428 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,428 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,428 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,429 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,436 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,437 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,437 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,437 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,437 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,438 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,438 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,438 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,438 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,438 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,439 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,439 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,440 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,441 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,441 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,441 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,442 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,443 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,447 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,447 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,447 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,447 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,448 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,448 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:25,456 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-03 11:57:25,500 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-03 11:57:25,508 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 11:57:25,508 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-03 11:57:25,529 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-03 11:57:25,542 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 197 places, 207 transitions, 430 flow [2021-10-03 11:57:25,545 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 197 places, 207 transitions, 430 flow [2021-10-03 11:57:25,547 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 197 places, 207 transitions, 430 flow [2021-10-03 11:57:25,652 INFO L129 PetriNetUnfolder]: 17/205 cut-off events. [2021-10-03 11:57:25,654 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-03 11:57:25,658 INFO L84 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 205 events. 17/205 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 95 event pairs, 0 based on Foata normal form. 0/187 useless extension candidates. Maximal degree in co-relation 162. Up to 2 conditions per place. [2021-10-03 11:57:25,665 INFO L116 LiptonReduction]: Number of co-enabled transitions 108 [2021-10-03 11:57:36,664 INFO L131 LiptonReduction]: Checked pairs total: 236 [2021-10-03 11:57:36,664 INFO L133 LiptonReduction]: Total number of compositions: 227 [2021-10-03 11:57:36,675 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 22 transitions, 60 flow [2021-10-03 11:57:36,686 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 24 states, 23 states have (on average 1.565217391304348) internal successors, (36), 23 states have internal predecessors, (36), 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 11:57:36,689 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 23 states have (on average 1.565217391304348) internal successors, (36), 23 states have internal predecessors, (36), 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 11:57:36,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-03 11:57:36,694 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 11:57:36,694 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-03 11:57:36,695 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-03 11:57:36,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 11:57:36,700 INFO L82 PathProgramCache]: Analyzing trace with hash -685705264, now seen corresponding path program 1 times [2021-10-03 11:57:36,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 11:57:36,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614719021] [2021-10-03 11:57:36,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 11:57:36,710 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 11:57:37,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 11:57:37,721 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 11:57:37,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 11:57:37,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614719021] [2021-10-03 11:57:37,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614719021] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 11:57:37,724 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 11:57:37,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-03 11:57:37,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592299656] [2021-10-03 11:57:37,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-03 11:57:37,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 11:57:37,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-03 11:57:37,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-03 11:57:37,749 INFO L87 Difference]: Start difference. First operand has 24 states, 23 states have (on average 1.565217391304348) internal successors, (36), 23 states have internal predecessors, (36), 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 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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 11:57:37,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 11:57:37,960 INFO L93 Difference]: Finished difference Result 29 states and 40 transitions. [2021-10-03 11:57:37,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-03 11:57:37,962 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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 15 [2021-10-03 11:57:37,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 11:57:37,970 INFO L225 Difference]: With dead ends: 29 [2021-10-03 11:57:37,971 INFO L226 Difference]: Without dead ends: 18 [2021-10-03 11:57:37,972 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 190.1ms TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-10-03 11:57:37,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-10-03 11:57:37,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-03 11:57:38,001 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 11:57:38,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2021-10-03 11:57:38,003 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 15 [2021-10-03 11:57:38,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 11:57:38,003 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-10-03 11:57:38,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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 11:57:38,004 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2021-10-03 11:57:38,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-03 11:57:38,005 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 11:57:38,005 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-03 11:57:38,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-03 11:57:38,006 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-03 11:57:38,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 11:57:38,007 INFO L82 PathProgramCache]: Analyzing trace with hash 843631896, now seen corresponding path program 2 times [2021-10-03 11:57:38,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 11:57:38,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776879042] [2021-10-03 11:57:38,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 11:57:38,008 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 11:57:38,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 11:57:38,654 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 11:57:38,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 11:57:38,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776879042] [2021-10-03 11:57:38,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776879042] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 11:57:38,655 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 11:57:38,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-03 11:57:38,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050020870] [2021-10-03 11:57:38,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-03 11:57:38,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 11:57:38,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-03 11:57:38,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-03 11:57:38,659 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 11:57:38,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 11:57:38,735 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2021-10-03 11:57:38,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-03 11:57:38,736 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2021-10-03 11:57:38,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 11:57:38,736 INFO L225 Difference]: With dead ends: 17 [2021-10-03 11:57:38,736 INFO L226 Difference]: Without dead ends: 0 [2021-10-03 11:57:38,737 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 82.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-03 11:57:38,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-03 11:57:38,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-03 11:57:38,738 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 11:57:38,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-03 11:57:38,739 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-10-03 11:57:38,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 11:57:38,739 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-03 11:57:38,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 11:57:38,739 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-03 11:57:38,739 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-03 11:57:38,743 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-03 11:57:38,743 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-03 11:57:38,744 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-03 11:57:38,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-03 11:57:38,749 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-03 11:57:38,749 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-03 11:57:38,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 11:57:38 BasicIcfg [2021-10-03 11:57:38,752 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-03 11:57:38,753 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-03 11:57:38,753 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-03 11:57:38,753 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-03 11:57:38,754 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 11:57:25" (3/4) ... [2021-10-03 11:57:38,757 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-03 11:57:38,763 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-03 11:57:38,764 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-03 11:57:38,771 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-10-03 11:57:38,772 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-03 11:57:38,772 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-03 11:57:38,838 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-10-03 11:57:38,838 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-03 11:57:38,840 INFO L168 Benchmark]: Toolchain (without parser) took 15127.92 ms. Allocated memory was 52.4 MB in the beginning and 121.6 MB in the end (delta: 69.2 MB). Free memory was 27.9 MB in the beginning and 36.7 MB in the end (delta: -8.8 MB). Peak memory consumption was 61.6 MB. Max. memory is 16.1 GB. [2021-10-03 11:57:38,841 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 52.4 MB. Free memory was 35.0 MB in the beginning and 34.9 MB in the end (delta: 41.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-03 11:57:38,842 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.73 ms. Allocated memory is still 52.4 MB. Free memory was 27.5 MB in the beginning and 29.7 MB in the end (delta: -2.2 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-10-03 11:57:38,842 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.33 ms. Allocated memory is still 52.4 MB. Free memory was 29.7 MB in the beginning and 27.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-03 11:57:38,843 INFO L168 Benchmark]: Boogie Preprocessor took 39.89 ms. Allocated memory is still 52.4 MB. Free memory was 27.7 MB in the beginning and 25.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-03 11:57:38,843 INFO L168 Benchmark]: RCFGBuilder took 1187.64 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 25.7 MB in the beginning and 36.7 MB in the end (delta: -11.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-03 11:57:38,844 INFO L168 Benchmark]: TraceAbstraction took 13427.09 ms. Allocated memory was 69.2 MB in the beginning and 121.6 MB in the end (delta: 52.4 MB). Free memory was 36.1 MB in the beginning and 41.9 MB in the end (delta: -5.8 MB). Peak memory consumption was 48.4 MB. Max. memory is 16.1 GB. [2021-10-03 11:57:38,844 INFO L168 Benchmark]: Witness Printer took 86.09 ms. Allocated memory is still 121.6 MB. Free memory was 41.9 MB in the beginning and 36.7 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-03 11:57:38,847 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 52.4 MB. Free memory was 35.0 MB in the beginning and 34.9 MB in the end (delta: 41.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 321.73 ms. Allocated memory is still 52.4 MB. Free memory was 27.5 MB in the beginning and 29.7 MB in the end (delta: -2.2 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.33 ms. Allocated memory is still 52.4 MB. Free memory was 29.7 MB in the beginning and 27.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.89 ms. Allocated memory is still 52.4 MB. Free memory was 27.7 MB in the beginning and 25.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1187.64 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 25.7 MB in the beginning and 36.7 MB in the end (delta: -11.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 13427.09 ms. Allocated memory was 69.2 MB in the beginning and 121.6 MB in the end (delta: 52.4 MB). Free memory was 36.1 MB in the beginning and 41.9 MB in the end (delta: -5.8 MB). Peak memory consumption was 48.4 MB. Max. memory is 16.1 GB. * Witness Printer took 86.09 ms. Allocated memory is still 121.6 MB. Free memory was 41.9 MB in the beginning and 36.7 MB in the end (delta: 5.2 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: 11119.5ms, 197 PlacesBefore, 25 PlacesAfterwards, 207 TransitionsBefore, 22 TransitionsAfterwards, 108 CoEnabledTransitionPairs, 8 FixpointIterations, 168 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 35 TrivialYvCompositions, 0 ConcurrentYvCompositions, 13 ChoiceCompositions, 227 TotalNumberOfCompositions, 236 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 223, positive: 200, positive conditional: 0, positive unconditional: 200, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 97, positive: 91, positive conditional: 0, positive unconditional: 91, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 97, positive: 91, positive conditional: 0, positive unconditional: 91, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 91, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 91, negative conditional: 0, negative unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 223, positive: 109, positive conditional: 0, positive unconditional: 109, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 97, unknown conditional: 0, unknown unconditional: 97] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 10, Positive conditional cache size: 0, Positive unconditional cache size: 10, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - 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: 69]: 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, 201 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 13249.8ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 7.7ms, AutomataDifference: 320.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11178.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 27 SDtfs, 60 SDslu, 27 SDs, 0 SdLazy, 70 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 103.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 272.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 16.0ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 17.5ms SsaConstructionTime, 355.6ms SatisfiabilityAnalysisTime, 1206.2ms InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 970 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 11:57:38,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...