./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix031.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e741ff-55ea-44b6-aafd-1f0116f29b9a/bin/ugemcutter-verify-ztSkJzofpW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e741ff-55ea-44b6-aafd-1f0116f29b9a/bin/ugemcutter-verify-ztSkJzofpW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e741ff-55ea-44b6-aafd-1f0116f29b9a/bin/ugemcutter-verify-ztSkJzofpW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e741ff-55ea-44b6-aafd-1f0116f29b9a/bin/ugemcutter-verify-ztSkJzofpW/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix031.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e741ff-55ea-44b6-aafd-1f0116f29b9a/bin/ugemcutter-verify-ztSkJzofpW/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e741ff-55ea-44b6-aafd-1f0116f29b9a/bin/ugemcutter-verify-ztSkJzofpW --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 526111e98fa506d5405af18114114ae6aa9ce1a2e8442e7719052c05a249c119 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-17 22:46:18,316 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 22:46:18,416 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e741ff-55ea-44b6-aafd-1f0116f29b9a/bin/ugemcutter-verify-ztSkJzofpW/config/svcomp-Reach-32bit-GemCutter_Default.epf [2023-11-17 22:46:18,420 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-17 22:46:18,421 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-17 22:46:18,467 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 22:46:18,469 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-17 22:46:18,470 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-17 22:46:18,471 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 22:46:18,476 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 22:46:18,478 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 22:46:18,478 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 22:46:18,479 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 22:46:18,481 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 22:46:18,481 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 22:46:18,482 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 22:46:18,482 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 22:46:18,483 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 22:46:18,483 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 22:46:18,484 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 22:46:18,484 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 22:46:18,485 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 22:46:18,485 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 22:46:18,486 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 22:46:18,486 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 22:46:18,487 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 22:46:18,488 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 22:46:18,488 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 22:46:18,489 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 22:46:18,489 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 22:46:18,491 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 22:46:18,491 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 22:46:18,491 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 22:46:18,492 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-17 22:46:18,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 22:46:18,492 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-17 22:46:18,493 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-17 22:46:18,493 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-17 22:46:18,494 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-17 22:46:18,494 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-17 22:46:18,495 INFO L153 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e741ff-55ea-44b6-aafd-1f0116f29b9a/bin/ugemcutter-verify-ztSkJzofpW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e741ff-55ea-44b6-aafd-1f0116f29b9a/bin/ugemcutter-verify-ztSkJzofpW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 526111e98fa506d5405af18114114ae6aa9ce1a2e8442e7719052c05a249c119 [2023-11-17 22:46:18,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 22:46:18,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 22:46:18,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 22:46:18,854 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 22:46:18,855 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 22:46:18,857 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e741ff-55ea-44b6-aafd-1f0116f29b9a/bin/ugemcutter-verify-ztSkJzofpW/../../sv-benchmarks/c/pthread-wmm/mix031.opt.i [2023-11-17 22:46:21,977 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 22:46:22,300 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 22:46:22,301 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e741ff-55ea-44b6-aafd-1f0116f29b9a/sv-benchmarks/c/pthread-wmm/mix031.opt.i [2023-11-17 22:46:22,325 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e741ff-55ea-44b6-aafd-1f0116f29b9a/bin/ugemcutter-verify-ztSkJzofpW/data/66f5c36fe/a5cb4758227a4f46a230ca94ef407a78/FLAGc530ec96d [2023-11-17 22:46:22,343 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e741ff-55ea-44b6-aafd-1f0116f29b9a/bin/ugemcutter-verify-ztSkJzofpW/data/66f5c36fe/a5cb4758227a4f46a230ca94ef407a78 [2023-11-17 22:46:22,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 22:46:22,350 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-17 22:46:22,353 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 22:46:22,353 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 22:46:22,358 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 22:46:22,359 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 10:46:22" (1/1) ... [2023-11-17 22:46:22,360 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e6b1db1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:22, skipping insertion in model container [2023-11-17 22:46:22,360 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 10:46:22" (1/1) ... [2023-11-17 22:46:22,428 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 22:46:22,623 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e741ff-55ea-44b6-aafd-1f0116f29b9a/sv-benchmarks/c/pthread-wmm/mix031.opt.i[987,1000] [2023-11-17 22:46:22,821 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 22:46:22,832 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 22:46:22,845 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e741ff-55ea-44b6-aafd-1f0116f29b9a/sv-benchmarks/c/pthread-wmm/mix031.opt.i[987,1000] [2023-11-17 22:46:22,887 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 22:46:22,922 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 22:46:22,923 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 22:46:22,930 INFO L206 MainTranslator]: Completed translation [2023-11-17 22:46:22,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:22 WrapperNode [2023-11-17 22:46:22,931 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 22:46:22,932 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 22:46:22,932 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 22:46:22,932 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 22:46:22,940 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:22" (1/1) ... [2023-11-17 22:46:22,956 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:22" (1/1) ... [2023-11-17 22:46:22,983 INFO L138 Inliner]: procedures = 175, calls = 49, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 122 [2023-11-17 22:46:22,984 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 22:46:22,984 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 22:46:22,984 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 22:46:22,985 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 22:46:22,994 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:22" (1/1) ... [2023-11-17 22:46:22,994 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:22" (1/1) ... [2023-11-17 22:46:22,998 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:22" (1/1) ... [2023-11-17 22:46:22,998 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:22" (1/1) ... [2023-11-17 22:46:23,007 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:22" (1/1) ... [2023-11-17 22:46:23,024 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:22" (1/1) ... [2023-11-17 22:46:23,026 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:22" (1/1) ... [2023-11-17 22:46:23,028 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:22" (1/1) ... [2023-11-17 22:46:23,032 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 22:46:23,033 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 22:46:23,033 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 22:46:23,033 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 22:46:23,034 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:22" (1/1) ... [2023-11-17 22:46:23,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 22:46:23,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e741ff-55ea-44b6-aafd-1f0116f29b9a/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:46:23,069 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e741ff-55ea-44b6-aafd-1f0116f29b9a/bin/ugemcutter-verify-ztSkJzofpW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-17 22:46:23,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e741ff-55ea-44b6-aafd-1f0116f29b9a/bin/ugemcutter-verify-ztSkJzofpW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-17 22:46:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 22:46:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-17 22:46:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 22:46:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 22:46:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 22:46:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-17 22:46:23,113 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-17 22:46:23,113 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-17 22:46:23,113 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-17 22:46:23,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 22:46:23,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-17 22:46:23,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 22:46:23,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 22:46:23,117 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-17 22:46:23,264 INFO L236 CfgBuilder]: Building ICFG [2023-11-17 22:46:23,266 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 22:46:23,590 INFO L277 CfgBuilder]: Performing block encoding [2023-11-17 22:46:23,766 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 22:46:23,766 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-17 22:46:23,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 10:46:23 BoogieIcfgContainer [2023-11-17 22:46:23,770 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 22:46:23,773 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 22:46:23,773 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 22:46:23,777 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 22:46:23,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 10:46:22" (1/3) ... [2023-11-17 22:46:23,778 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@536b0c69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 10:46:23, skipping insertion in model container [2023-11-17 22:46:23,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:22" (2/3) ... [2023-11-17 22:46:23,779 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@536b0c69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 10:46:23, skipping insertion in model container [2023-11-17 22:46:23,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 10:46:23" (3/3) ... [2023-11-17 22:46:23,780 INFO L112 eAbstractionObserver]: Analyzing ICFG mix031.opt.i [2023-11-17 22:46:23,790 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-17 22:46:23,802 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 22:46:23,803 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-17 22:46:23,803 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 22:46:23,857 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-17 22:46:23,911 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 22:46:23,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-17 22:46:23,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e741ff-55ea-44b6-aafd-1f0116f29b9a/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:46:23,914 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e741ff-55ea-44b6-aafd-1f0116f29b9a/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-17 22:46:23,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e741ff-55ea-44b6-aafd-1f0116f29b9a/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-17 22:46:23,971 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-17 22:46:23,993 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-11-17 22:46:24,009 INFO L357 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3f42c313, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 22:46:24,009 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-17 22:46:24,217 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 22:46:24,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:46:24,224 INFO L85 PathProgramCache]: Analyzing trace with hash -439896999, now seen corresponding path program 1 times [2023-11-17 22:46:24,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:46:24,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500542954] [2023-11-17 22:46:24,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:46:24,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:46:24,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:46:24,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:46:24,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:46:24,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500542954] [2023-11-17 22:46:24,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500542954] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:46:24,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:46:24,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 22:46:24,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711904539] [2023-11-17 22:46:24,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:46:24,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-17 22:46:24,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:46:24,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-17 22:46:24,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-17 22:46:24,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:24,639 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:46:24,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 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) [2023-11-17 22:46:24,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:24,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:24,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 22:46:24,674 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 22:46:24,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:46:24,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1573567401, now seen corresponding path program 1 times [2023-11-17 22:46:24,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:46:24,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49252013] [2023-11-17 22:46:24,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:46:24,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:46:24,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:46:25,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:46:25,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:46:25,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49252013] [2023-11-17 22:46:25,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49252013] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:46:25,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:46:25,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 22:46:25,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622000188] [2023-11-17 22:46:25,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:46:25,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 22:46:25,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:46:25,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 22:46:25,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 22:46:25,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:25,275 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:46:25,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2023-11-17 22:46:25,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:25,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:25,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:25,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:46:25,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 22:46:25,466 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 22:46:25,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:46:25,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1787674247, now seen corresponding path program 1 times [2023-11-17 22:46:25,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:46:25,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238767415] [2023-11-17 22:46:25,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:46:25,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:46:25,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:46:26,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:46:26,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:46:26,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238767415] [2023-11-17 22:46:26,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238767415] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:46:26,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:46:26,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-17 22:46:26,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729654184] [2023-11-17 22:46:26,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:46:26,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 22:46:26,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:46:26,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 22:46:26,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-17 22:46:26,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:26,040 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:46:26,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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) [2023-11-17 22:46:26,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:26,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:46:26,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:26,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:26,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:46:26,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:46:26,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-17 22:46:26,278 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 22:46:26,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:46:26,288 INFO L85 PathProgramCache]: Analyzing trace with hash -319965317, now seen corresponding path program 1 times [2023-11-17 22:46:26,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:46:26,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424187528] [2023-11-17 22:46:26,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:46:26,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:46:26,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:46:26,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:46:26,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:46:26,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424187528] [2023-11-17 22:46:26,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424187528] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:46:26,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:46:26,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 22:46:26,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931683215] [2023-11-17 22:46:26,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:46:26,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-17 22:46:26,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:46:26,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-17 22:46:26,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-17 22:46:26,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:26,722 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:46:26,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 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) [2023-11-17 22:46:26,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:26,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:46:26,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:46:26,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:26,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:26,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:46:26,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:46:26,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:46:26,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-17 22:46:26,931 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 22:46:26,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:46:26,931 INFO L85 PathProgramCache]: Analyzing trace with hash 660750656, now seen corresponding path program 1 times [2023-11-17 22:46:26,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:46:26,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039715187] [2023-11-17 22:46:26,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:46:26,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:46:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:46:27,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:46:27,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:46:27,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039715187] [2023-11-17 22:46:27,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039715187] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:46:27,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:46:27,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-17 22:46:27,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289947282] [2023-11-17 22:46:27,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:46:27,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-17 22:46:27,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:46:27,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-17 22:46:27,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-17 22:46:27,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:27,860 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:46:27,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 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) [2023-11-17 22:46:27,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:27,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:46:27,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:46:27,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:46:27,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:28,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:28,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 22:46:28,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:46:28,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:46:28,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:46:28,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-17 22:46:28,290 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 22:46:28,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:46:28,290 INFO L85 PathProgramCache]: Analyzing trace with hash -118930044, now seen corresponding path program 2 times [2023-11-17 22:46:28,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:46:28,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854999315] [2023-11-17 22:46:28,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:46:28,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:46:28,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-17 22:46:28,360 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-17 22:46:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-17 22:46:28,434 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-17 22:46:28,435 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-17 22:46:28,436 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-11-17 22:46:28,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-11-17 22:46:28,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-11-17 22:46:28,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-17 22:46:28,444 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2023-11-17 22:46:28,446 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN (1/2) [2023-11-17 22:46:28,450 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-17 22:46:28,450 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-17 22:46:28,537 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-17 22:46:28,540 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated [2023-11-17 22:46:28,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 10:46:28 BasicIcfg [2023-11-17 22:46:28,567 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 22:46:28,567 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-17 22:46:28,568 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-17 22:46:28,568 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-17 22:46:28,568 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 10:46:23" (3/4) ... [2023-11-17 22:46:28,569 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-17 22:46:28,603 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-17 22:46:28,604 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated [2023-11-17 22:46:28,678 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e741ff-55ea-44b6-aafd-1f0116f29b9a/bin/ugemcutter-verify-ztSkJzofpW/witness.graphml [2023-11-17 22:46:28,678 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-17 22:46:28,679 INFO L158 Benchmark]: Toolchain (without parser) took 6328.85ms. Allocated memory was 130.0MB in the beginning and 192.9MB in the end (delta: 62.9MB). Free memory was 90.1MB in the beginning and 140.5MB in the end (delta: -50.4MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2023-11-17 22:46:28,679 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 102.8MB. Free memory is still 55.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-17 22:46:28,680 INFO L158 Benchmark]: CACSL2BoogieTranslator took 578.50ms. Allocated memory is still 130.0MB. Free memory was 89.6MB in the beginning and 66.9MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-17 22:46:28,680 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.65ms. Allocated memory is still 130.0MB. Free memory was 66.9MB in the beginning and 64.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-17 22:46:28,680 INFO L158 Benchmark]: Boogie Preprocessor took 47.83ms. Allocated memory is still 130.0MB. Free memory was 64.5MB in the beginning and 62.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-17 22:46:28,681 INFO L158 Benchmark]: RCFGBuilder took 737.52ms. Allocated memory was 130.0MB in the beginning and 159.4MB in the end (delta: 29.4MB). Free memory was 62.8MB in the beginning and 116.2MB in the end (delta: -53.4MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2023-11-17 22:46:28,681 INFO L158 Benchmark]: TraceAbstraction took 4793.95ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 116.0MB in the beginning and 156.3MB in the end (delta: -40.3MB). Peak memory consumption was 101.3MB. Max. memory is 16.1GB. [2023-11-17 22:46:28,682 INFO L158 Benchmark]: Witness Printer took 110.77ms. Allocated memory is still 192.9MB. Free memory was 156.3MB in the beginning and 140.5MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-17 22:46:28,684 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 102.8MB. Free memory is still 55.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 578.50ms. Allocated memory is still 130.0MB. Free memory was 89.6MB in the beginning and 66.9MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.65ms. Allocated memory is still 130.0MB. Free memory was 66.9MB in the beginning and 64.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.83ms. Allocated memory is still 130.0MB. Free memory was 64.5MB in the beginning and 62.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 737.52ms. Allocated memory was 130.0MB in the beginning and 159.4MB in the end (delta: 29.4MB). Free memory was 62.8MB in the beginning and 116.2MB in the end (delta: -53.4MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4793.95ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 116.0MB in the beginning and 156.3MB in the end (delta: -40.3MB). Peak memory consumption was 101.3MB. Max. memory is 16.1GB. * Witness Printer took 110.77ms. Allocated memory is still 192.9MB. Free memory was 156.3MB in the beginning and 140.5MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1624, independent: 1571, independent conditional: 682, independent unconditional: 889, dependent: 53, dependent conditional: 34, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1603, independent: 1571, independent conditional: 682, independent unconditional: 889, dependent: 32, dependent conditional: 13, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1603, independent: 1571, independent conditional: 682, independent unconditional: 889, dependent: 32, dependent conditional: 13, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1632, independent: 1571, independent conditional: 3, independent unconditional: 1568, dependent: 61, dependent conditional: 26, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1632, independent: 1571, independent conditional: 3, independent unconditional: 1568, dependent: 61, dependent conditional: 12, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1632, independent: 1571, independent conditional: 3, independent unconditional: 1568, dependent: 61, dependent conditional: 12, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 914, independent: 892, independent conditional: 3, independent unconditional: 889, dependent: 22, dependent conditional: 3, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 914, independent: 886, independent conditional: 0, independent unconditional: 886, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 28, independent: 6, independent conditional: 3, independent unconditional: 3, dependent: 22, dependent conditional: 3, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 28, independent: 6, independent conditional: 3, independent unconditional: 3, dependent: 22, dependent conditional: 3, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 303, independent: 43, independent conditional: 6, independent unconditional: 37, dependent: 260, dependent conditional: 45, dependent unconditional: 215, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1632, independent: 679, independent conditional: 0, independent unconditional: 679, dependent: 39, dependent conditional: 9, dependent unconditional: 30, unknown: 914, unknown conditional: 6, unknown unconditional: 908] , Statistics on independence cache: Total cache size (in pairs): 914, Positive cache size: 892, Positive conditional cache size: 3, Positive unconditional cache size: 889, Negative cache size: 22, Negative conditional cache size: 3, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 14, Maximal queried relation: 2, Independence queries for same thread: 21 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.4s, Number of persistent set computation: 245, Number of trivial persistent sets: 112, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 908, independent: 889, independent conditional: 0, independent unconditional: 889, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1624, independent: 1571, independent conditional: 682, independent unconditional: 889, dependent: 53, dependent conditional: 34, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1603, independent: 1571, independent conditional: 682, independent unconditional: 889, dependent: 32, dependent conditional: 13, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1603, independent: 1571, independent conditional: 682, independent unconditional: 889, dependent: 32, dependent conditional: 13, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1632, independent: 1571, independent conditional: 3, independent unconditional: 1568, dependent: 61, dependent conditional: 26, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1632, independent: 1571, independent conditional: 3, independent unconditional: 1568, dependent: 61, dependent conditional: 12, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1632, independent: 1571, independent conditional: 3, independent unconditional: 1568, dependent: 61, dependent conditional: 12, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 914, independent: 892, independent conditional: 3, independent unconditional: 889, dependent: 22, dependent conditional: 3, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 914, independent: 886, independent conditional: 0, independent unconditional: 886, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 28, independent: 6, independent conditional: 3, independent unconditional: 3, dependent: 22, dependent conditional: 3, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 28, independent: 6, independent conditional: 3, independent unconditional: 3, dependent: 22, dependent conditional: 3, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 303, independent: 43, independent conditional: 6, independent unconditional: 37, dependent: 260, dependent conditional: 45, dependent unconditional: 215, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1632, independent: 679, independent conditional: 0, independent unconditional: 679, dependent: 39, dependent conditional: 9, dependent unconditional: 30, unknown: 914, unknown conditional: 6, unknown unconditional: 908] , Statistics on independence cache: Total cache size (in pairs): 914, Positive cache size: 892, Positive conditional cache size: 3, Positive unconditional cache size: 889, Negative cache size: 22, Negative conditional cache size: 3, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 14, Maximal queried relation: 2, Independence queries for same thread: 21 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L711] 0 int __unbuffered_p0_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0] [L713] 0 int __unbuffered_p0_EBX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0] [L715] 0 int __unbuffered_p1_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0] [L717] 0 int __unbuffered_p1_EBX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0] [L719] 0 int a = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0] [L720] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, main$tmp_guard0=0] [L721] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0] [L723] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L725] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L726] 0 _Bool y$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y=0] [L727] 0 int y$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y=0] [L728] 0 _Bool y$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y=0] [L729] 0 _Bool y$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y=0] [L730] 0 _Bool y$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y=0] [L731] 0 _Bool y$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y=0] [L732] 0 _Bool y$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y=0] [L733] 0 _Bool y$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y=0] [L734] 0 _Bool y$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y=0] [L735] 0 int *y$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y=0] [L736] 0 int y$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y=0] [L737] 0 _Bool y$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y=0] [L738] 0 int y$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y=0] [L739] 0 _Bool y$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0] [L741] 0 int z = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L742] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L743] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L823] 0 pthread_t t835; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, t835={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L824] FCALL, FORK 0 pthread_create(&t835, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t835={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L825] 0 pthread_t t836; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t835={5:0}, t836={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L826] FCALL, FORK 0 pthread_create(&t836, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t835={5:0}, t836={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L781] 2 y$w_buff1 = y$w_buff0 [L782] 2 y$w_buff0 = 1 [L783] 2 y$w_buff1_used = y$w_buff0_used [L784] 2 y$w_buff0_used = (_Bool)1 [L785] CALL 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L785] RET 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L786] 2 y$r_buff1_thd0 = y$r_buff0_thd0 [L787] 2 y$r_buff1_thd1 = y$r_buff0_thd1 [L788] 2 y$r_buff1_thd2 = y$r_buff0_thd2 [L789] 2 y$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L792] 2 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1] [L795] 2 __unbuffered_p1_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1] [L798] 2 __unbuffered_p1_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1] [L747] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1] [L750] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1] [L753] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1] [L756] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L757] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L758] 1 y$flush_delayed = weak$$choice2 [L759] 1 y$mem_tmp = y [L760] 1 y = !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1) [L761] 1 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0)) [L762] 1 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1)) [L763] 1 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used)) [L764] 1 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L765] 1 y$r_buff0_thd1 = weak$$choice2 ? y$r_buff0_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff0_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1)) [L766] 1 y$r_buff1_thd1 = weak$$choice2 ? y$r_buff1_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L767] 1 __unbuffered_p0_EBX = y [L768] 1 y = y$flush_delayed ? y$mem_tmp : y [L769] 1 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1] [L801] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L802] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L803] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L804] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L805] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1] [L808] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1] [L810] 2 return 0; VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1] [L774] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1] [L828] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t835={5:0}, t836={3:0}, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1] [L830] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) VAL [\old(cond)=1, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, arg={0:0}, arg={0:0}, cond=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1] [L830] RET 0 assume_abort_if_not(main$tmp_guard0) [L832] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L833] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L834] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L835] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L836] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t835={5:0}, t836={3:0}, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1] [L839] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 1 && __unbuffered_p0_EBX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t835={5:0}, t836={3:0}, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1] [L841] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression VAL [\old(expression)=0, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, arg={0:0}, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1] [L19] 0 reach_error() VAL [\old(expression)=0, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, arg={0:0}, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1] - UnprovableResult [Line: 826]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 824]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 121 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 1.3s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 437 NumberOfCodeBlocks, 437 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 353 ConstructedInterpolants, 0 QuantifiedInterpolants, 939 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-17 22:46:28,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e741ff-55ea-44b6-aafd-1f0116f29b9a/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2023-11-17 22:46:28,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e741ff-55ea-44b6-aafd-1f0116f29b9a/bin/ugemcutter-verify-ztSkJzofpW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE