./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:32:42,845 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:32:42,921 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 23:32:42,929 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:32:42,929 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:32:42,969 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:32:42,969 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:32:42,969 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:32:42,970 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:32:42,970 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:32:42,970 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:32:42,970 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:32:42,970 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:32:42,970 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:32:42,971 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:32:42,971 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:32:42,971 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:32:42,971 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:32:42,973 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:32:42,973 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:32:42,973 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:32:42,973 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:32:42,974 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:32:42,974 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:32:42,974 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:32:42,974 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:32:42,974 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:32:42,974 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:32:42,974 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:32:42,974 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:32:42,975 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:32:42,975 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:32:42,975 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:32:42,975 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:32:42,975 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:32:42,975 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:32:42,975 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:32:42,975 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:32:42,975 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:32:42,975 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:32:42,975 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:32:42,976 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:32:42,976 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:32:42,976 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:32:42,976 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:32:42,976 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:32:42,976 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:32:42,976 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:32:42,976 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 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 -> 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 [2024-11-27 23:32:43,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:32:43,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:32:43,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:32:43,294 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:32:43,295 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:32:43,296 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2024-11-27 23:32:46,357 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/data/3b758e5ba/d9489179a1e74927b2f787740bb67af0/FLAG8d989bb60 [2024-11-27 23:32:46,665 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:32:46,666 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2024-11-27 23:32:46,687 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/data/3b758e5ba/d9489179a1e74927b2f787740bb67af0/FLAG8d989bb60 [2024-11-27 23:32:46,702 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/data/3b758e5ba/d9489179a1e74927b2f787740bb67af0 [2024-11-27 23:32:46,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:32:46,706 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:32:46,707 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:32:46,707 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:32:46,712 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:32:46,713 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:32:46" (1/1) ... [2024-11-27 23:32:46,714 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ef34ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:46, skipping insertion in model container [2024-11-27 23:32:46,714 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:32:46" (1/1) ... [2024-11-27 23:32:46,769 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:32:46,979 WARN L250 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_61d3c512-37de-496b-8828-454681b2a982/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i[818,831] [2024-11-27 23:32:47,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:32:47,357 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:32:47,368 WARN L250 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_61d3c512-37de-496b-8828-454681b2a982/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i[818,831] [2024-11-27 23:32:47,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:32:47,532 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:32:47,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:47 WrapperNode [2024-11-27 23:32:47,532 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:32:47,533 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:32:47,534 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:32:47,534 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:32:47,542 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:47" (1/1) ... [2024-11-27 23:32:47,568 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:47" (1/1) ... [2024-11-27 23:32:47,600 INFO L138 Inliner]: procedures = 364, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 113 [2024-11-27 23:32:47,600 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:32:47,601 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:32:47,601 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:32:47,602 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:32:47,612 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:47" (1/1) ... [2024-11-27 23:32:47,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:47" (1/1) ... [2024-11-27 23:32:47,615 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:47" (1/1) ... [2024-11-27 23:32:47,639 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 23:32:47,640 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:47" (1/1) ... [2024-11-27 23:32:47,640 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:47" (1/1) ... [2024-11-27 23:32:47,650 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:47" (1/1) ... [2024-11-27 23:32:47,655 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:47" (1/1) ... [2024-11-27 23:32:47,658 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:47" (1/1) ... [2024-11-27 23:32:47,661 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:47" (1/1) ... [2024-11-27 23:32:47,664 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:47" (1/1) ... [2024-11-27 23:32:47,670 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:32:47,671 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:32:47,671 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:32:47,671 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:32:47,672 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:47" (1/1) ... [2024-11-27 23:32:47,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:32:47,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:47,712 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:32:47,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:32:47,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-27 23:32:47,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-27 23:32:47,743 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2024-11-27 23:32:47,743 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2024-11-27 23:32:47,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:32:47,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:32:47,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:32:47,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:32:47,745 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 23:32:47,884 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:32:47,885 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:32:48,128 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 23:32:48,128 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:32:48,514 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:32:48,514 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 23:32:48,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:32:48 BoogieIcfgContainer [2024-11-27 23:32:48,514 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:32:48,516 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:32:48,516 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:32:48,521 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:32:48,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:32:46" (1/3) ... [2024-11-27 23:32:48,523 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@445d66d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:32:48, skipping insertion in model container [2024-11-27 23:32:48,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:47" (2/3) ... [2024-11-27 23:32:48,523 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@445d66d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:32:48, skipping insertion in model container [2024-11-27 23:32:48,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:32:48" (3/3) ... [2024-11-27 23:32:48,524 INFO L128 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-3.i [2024-11-27 23:32:48,541 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:32:48,546 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pthread-demo-datarace-3.i that has 2 procedures, 20 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-27 23:32:48,546 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 23:32:48,592 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-27 23:32:48,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 23 places, 22 transitions, 51 flow [2024-11-27 23:32:48,666 INFO L124 PetriNetUnfolderBase]: 3/21 cut-off events. [2024-11-27 23:32:48,668 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-27 23:32:48,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 21 events. 3/21 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 26 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 12. Up to 2 conditions per place. [2024-11-27 23:32:48,671 INFO L82 GeneralOperation]: Start removeDead. Operand has 23 places, 22 transitions, 51 flow [2024-11-27 23:32:48,674 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 20 places, 18 transitions, 42 flow [2024-11-27 23:32:48,682 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:32:48,694 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, 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;@595cab93, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:32:48,695 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-27 23:32:48,757 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 23:32:48,757 INFO L124 PetriNetUnfolderBase]: 2/17 cut-off events. [2024-11-27 23:32:48,758 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-27 23:32:48,758 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:32:48,759 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:48,759 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 23:32:48,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:48,766 INFO L85 PathProgramCache]: Analyzing trace with hash 343660402, now seen corresponding path program 1 times [2024-11-27 23:32:48,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:48,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338115441] [2024-11-27 23:32:48,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:48,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:48,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:49,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:32:49,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:49,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338115441] [2024-11-27 23:32:49,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338115441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:49,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:49,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:32:49,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857521271] [2024-11-27 23:32:49,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:49,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:32:49,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:49,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:32:49,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:32:49,238 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 22 [2024-11-27 23:32:49,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 18 transitions, 42 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-11-27 23:32:49,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:32:49,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 22 [2024-11-27 23:32:49,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:32:49,319 INFO L124 PetriNetUnfolderBase]: 19/59 cut-off events. [2024-11-27 23:32:49,320 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-27 23:32:49,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 59 events. 19/59 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 117 event pairs, 6 based on Foata normal form. 3/60 useless extension candidates. Maximal degree in co-relation 89. Up to 29 conditions per place. [2024-11-27 23:32:49,323 INFO L140 encePairwiseOnDemand]: 19/22 looper letters, 14 selfloop transitions, 2 changer transitions 0/23 dead transitions. [2024-11-27 23:32:49,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 23 transitions, 84 flow [2024-11-27 23:32:49,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:32:49,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:32:49,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2024-11-27 23:32:49,338 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-27 23:32:49,340 INFO L175 Difference]: Start difference. First operand has 20 places, 18 transitions, 42 flow. Second operand 3 states and 44 transitions. [2024-11-27 23:32:49,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 23 transitions, 84 flow [2024-11-27 23:32:49,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 23 transitions, 80 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 23:32:49,350 INFO L231 Difference]: Finished difference. Result has 21 places, 19 transitions, 50 flow [2024-11-27 23:32:49,354 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=21, PETRI_TRANSITIONS=19} [2024-11-27 23:32:49,359 INFO L279 CegarLoopForPetriNet]: 20 programPoint places, 1 predicate places. [2024-11-27 23:32:49,360 INFO L471 AbstractCegarLoop]: Abstraction has has 21 places, 19 transitions, 50 flow [2024-11-27 23:32:49,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-11-27 23:32:49,361 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:32:49,361 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:49,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 23:32:49,362 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 23:32:49,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:49,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1992792977, now seen corresponding path program 1 times [2024-11-27 23:32:49,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:49,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076511947] [2024-11-27 23:32:49,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:49,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:49,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:49,522 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:32:49,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:49,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076511947] [2024-11-27 23:32:49,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076511947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:49,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:49,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:32:49,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440088080] [2024-11-27 23:32:49,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:49,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:32:49,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:49,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:32:49,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:32:49,528 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 22 [2024-11-27 23:32:49,528 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 19 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2024-11-27 23:32:49,528 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:32:49,528 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 22 [2024-11-27 23:32:49,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:32:49,610 INFO L124 PetriNetUnfolderBase]: 25/80 cut-off events. [2024-11-27 23:32:49,610 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-11-27 23:32:49,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 80 events. 25/80 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 208 event pairs, 10 based on Foata normal form. 6/81 useless extension candidates. Maximal degree in co-relation 39. Up to 41 conditions per place. [2024-11-27 23:32:49,614 INFO L140 encePairwiseOnDemand]: 19/22 looper letters, 16 selfloop transitions, 2 changer transitions 0/25 dead transitions. [2024-11-27 23:32:49,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 25 transitions, 108 flow [2024-11-27 23:32:49,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:32:49,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:32:49,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2024-11-27 23:32:49,615 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-27 23:32:49,615 INFO L175 Difference]: Start difference. First operand has 21 places, 19 transitions, 50 flow. Second operand 3 states and 44 transitions. [2024-11-27 23:32:49,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 25 transitions, 108 flow [2024-11-27 23:32:49,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 25 transitions, 104 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 23:32:49,617 INFO L231 Difference]: Finished difference. Result has 23 places, 20 transitions, 60 flow [2024-11-27 23:32:49,617 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=23, PETRI_TRANSITIONS=20} [2024-11-27 23:32:49,617 INFO L279 CegarLoopForPetriNet]: 20 programPoint places, 3 predicate places. [2024-11-27 23:32:49,618 INFO L471 AbstractCegarLoop]: Abstraction has has 23 places, 20 transitions, 60 flow [2024-11-27 23:32:49,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2024-11-27 23:32:49,618 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:32:49,618 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:49,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:32:49,620 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 23:32:49,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:49,621 INFO L85 PathProgramCache]: Analyzing trace with hash -2086902567, now seen corresponding path program 1 times [2024-11-27 23:32:49,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:49,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598499110] [2024-11-27 23:32:49,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:49,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:49,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:49,817 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:32:49,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:49,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598499110] [2024-11-27 23:32:49,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598499110] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:49,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561331205] [2024-11-27 23:32:49,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:49,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:49,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:49,819 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:49,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:32:50,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:50,015 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:32:50,020 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:50,078 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:32:50,079 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:50,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:32:50,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561331205] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:32:50,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:32:50,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-27 23:32:50,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262055615] [2024-11-27 23:32:50,135 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:32:50,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:32:50,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:50,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:32:50,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:32:50,142 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 22 [2024-11-27 23:32:50,142 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 20 transitions, 60 flow. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 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) [2024-11-27 23:32:50,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:32:50,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 22 [2024-11-27 23:32:50,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:32:50,320 INFO L124 PetriNetUnfolderBase]: 67/168 cut-off events. [2024-11-27 23:32:50,320 INFO L125 PetriNetUnfolderBase]: For 83/83 co-relation queries the response was YES. [2024-11-27 23:32:50,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 396 conditions, 168 events. 67/168 cut-off events. For 83/83 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 583 event pairs, 10 based on Foata normal form. 18/184 useless extension candidates. Maximal degree in co-relation 91. Up to 35 conditions per place. [2024-11-27 23:32:50,324 INFO L140 encePairwiseOnDemand]: 18/22 looper letters, 34 selfloop transitions, 6 changer transitions 0/46 dead transitions. [2024-11-27 23:32:50,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 46 transitions, 228 flow [2024-11-27 23:32:50,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:32:50,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 23:32:50,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 86 transitions. [2024-11-27 23:32:50,328 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6515151515151515 [2024-11-27 23:32:50,328 INFO L175 Difference]: Start difference. First operand has 23 places, 20 transitions, 60 flow. Second operand 6 states and 86 transitions. [2024-11-27 23:32:50,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 46 transitions, 228 flow [2024-11-27 23:32:50,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 46 transitions, 226 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 23:32:50,331 INFO L231 Difference]: Finished difference. Result has 31 places, 23 transitions, 98 flow [2024-11-27 23:32:50,332 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=98, PETRI_PLACES=31, PETRI_TRANSITIONS=23} [2024-11-27 23:32:50,333 INFO L279 CegarLoopForPetriNet]: 20 programPoint places, 11 predicate places. [2024-11-27 23:32:50,334 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 23 transitions, 98 flow [2024-11-27 23:32:50,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 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) [2024-11-27 23:32:50,334 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:32:50,334 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:50,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 23:32:50,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:50,535 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 23:32:50,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:50,536 INFO L85 PathProgramCache]: Analyzing trace with hash 2111607745, now seen corresponding path program 2 times [2024-11-27 23:32:50,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:50,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135461868] [2024-11-27 23:32:50,536 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:32:50,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:50,585 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:32:50,585 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:32:50,680 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-27 23:32:50,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:50,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135461868] [2024-11-27 23:32:50,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135461868] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:50,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1933052373] [2024-11-27 23:32:50,681 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:32:50,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:50,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:50,683 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:50,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:32:50,870 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:32:50,871 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:32:50,873 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:32:50,874 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:50,935 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-27 23:32:50,935 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:51,003 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-27 23:32:51,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1933052373] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:32:51,006 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:32:51,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-27 23:32:51,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166613524] [2024-11-27 23:32:51,006 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:32:51,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:32:51,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:51,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:32:51,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:32:51,012 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 22 [2024-11-27 23:32:51,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 23 transitions, 98 flow. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 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) [2024-11-27 23:32:51,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:32:51,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 22 [2024-11-27 23:32:51,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:32:51,174 INFO L124 PetriNetUnfolderBase]: 93/275 cut-off events. [2024-11-27 23:32:51,174 INFO L125 PetriNetUnfolderBase]: For 585/595 co-relation queries the response was YES. [2024-11-27 23:32:51,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 807 conditions, 275 events. 93/275 cut-off events. For 585/595 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1162 event pairs, 12 based on Foata normal form. 21/288 useless extension candidates. Maximal degree in co-relation 409. Up to 76 conditions per place. [2024-11-27 23:32:51,180 INFO L140 encePairwiseOnDemand]: 18/22 looper letters, 43 selfloop transitions, 6 changer transitions 0/56 dead transitions. [2024-11-27 23:32:51,180 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 56 transitions, 410 flow [2024-11-27 23:32:51,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:32:51,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 23:32:51,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 85 transitions. [2024-11-27 23:32:51,183 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6439393939393939 [2024-11-27 23:32:51,183 INFO L175 Difference]: Start difference. First operand has 31 places, 23 transitions, 98 flow. Second operand 6 states and 85 transitions. [2024-11-27 23:32:51,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 56 transitions, 410 flow [2024-11-27 23:32:51,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 56 transitions, 370 flow, removed 15 selfloop flow, removed 1 redundant places. [2024-11-27 23:32:51,190 INFO L231 Difference]: Finished difference. Result has 39 places, 26 transitions, 130 flow [2024-11-27 23:32:51,192 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=130, PETRI_PLACES=39, PETRI_TRANSITIONS=26} [2024-11-27 23:32:51,193 INFO L279 CegarLoopForPetriNet]: 20 programPoint places, 19 predicate places. [2024-11-27 23:32:51,194 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 26 transitions, 130 flow [2024-11-27 23:32:51,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 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) [2024-11-27 23:32:51,194 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:32:51,194 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:51,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 23:32:51,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:51,395 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 23:32:51,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:51,395 INFO L85 PathProgramCache]: Analyzing trace with hash 537424274, now seen corresponding path program 3 times [2024-11-27 23:32:51,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:51,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600331857] [2024-11-27 23:32:51,396 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:32:51,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:51,441 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-27 23:32:51,442 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:32:51,673 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-27 23:32:51,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:51,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600331857] [2024-11-27 23:32:51,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600331857] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:51,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222092380] [2024-11-27 23:32:51,674 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:32:51,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:51,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:51,676 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:51,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:32:51,861 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-27 23:32:51,862 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:32:51,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 23:32:51,865 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:51,953 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-27 23:32:51,956 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:52,090 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-27 23:32:52,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [222092380] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:32:52,092 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:32:52,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-27 23:32:52,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114960861] [2024-11-27 23:32:52,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:32:52,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 23:32:52,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:52,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 23:32:52,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:32:52,101 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 22 [2024-11-27 23:32:52,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 26 transitions, 130 flow. Second operand has 13 states, 13 states have (on average 11.23076923076923) internal successors, (146), 13 states have internal predecessors, (146), 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) [2024-11-27 23:32:52,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:32:52,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 22 [2024-11-27 23:32:52,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:32:52,352 INFO L124 PetriNetUnfolderBase]: 200/584 cut-off events. [2024-11-27 23:32:52,352 INFO L125 PetriNetUnfolderBase]: For 1346/1376 co-relation queries the response was YES. [2024-11-27 23:32:52,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1876 conditions, 584 events. 200/584 cut-off events. For 1346/1376 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2617 event pairs, 12 based on Foata normal form. 42/622 useless extension candidates. Maximal degree in co-relation 970. Up to 165 conditions per place. [2024-11-27 23:32:52,359 INFO L140 encePairwiseOnDemand]: 18/22 looper letters, 91 selfloop transitions, 12 changer transitions 0/110 dead transitions. [2024-11-27 23:32:52,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 110 transitions, 850 flow [2024-11-27 23:32:52,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:32:52,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-27 23:32:52,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 172 transitions. [2024-11-27 23:32:52,361 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6515151515151515 [2024-11-27 23:32:52,362 INFO L175 Difference]: Start difference. First operand has 39 places, 26 transitions, 130 flow. Second operand 12 states and 172 transitions. [2024-11-27 23:32:52,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 110 transitions, 850 flow [2024-11-27 23:32:52,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 110 transitions, 830 flow, removed 9 selfloop flow, removed 1 redundant places. [2024-11-27 23:32:52,369 INFO L231 Difference]: Finished difference. Result has 56 places, 33 transitions, 218 flow [2024-11-27 23:32:52,369 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=218, PETRI_PLACES=56, PETRI_TRANSITIONS=33} [2024-11-27 23:32:52,370 INFO L279 CegarLoopForPetriNet]: 20 programPoint places, 36 predicate places. [2024-11-27 23:32:52,370 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 33 transitions, 218 flow [2024-11-27 23:32:52,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.23076923076923) internal successors, (146), 13 states have internal predecessors, (146), 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) [2024-11-27 23:32:52,370 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:32:52,370 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:52,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-27 23:32:52,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:52,575 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 23:32:52,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:52,576 INFO L85 PathProgramCache]: Analyzing trace with hash 885783510, now seen corresponding path program 4 times [2024-11-27 23:32:52,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:52,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789266298] [2024-11-27 23:32:52,576 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 23:32:52,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:52,641 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 23:32:52,641 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:32:52,822 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-27 23:32:52,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:52,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789266298] [2024-11-27 23:32:52,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789266298] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:52,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914738853] [2024-11-27 23:32:52,822 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 23:32:52,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:52,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:52,826 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:52,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 23:32:53,004 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 23:32:53,004 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:32:53,006 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 23:32:53,008 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:53,120 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-27 23:32:53,120 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:53,303 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-27 23:32:53,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914738853] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:32:53,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:32:53,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-11-27 23:32:53,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697609986] [2024-11-27 23:32:53,304 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:32:53,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:32:53,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:53,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:32:53,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:32:53,319 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 22 [2024-11-27 23:32:53,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 33 transitions, 218 flow. Second operand has 12 states, 12 states have (on average 10.583333333333334) internal successors, (127), 12 states have internal predecessors, (127), 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) [2024-11-27 23:32:53,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:32:53,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 22 [2024-11-27 23:32:53,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:32:53,748 INFO L124 PetriNetUnfolderBase]: 511/1358 cut-off events. [2024-11-27 23:32:53,749 INFO L125 PetriNetUnfolderBase]: For 4697/4697 co-relation queries the response was YES. [2024-11-27 23:32:53,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4669 conditions, 1358 events. 511/1358 cut-off events. For 4697/4697 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 8075 event pairs, 34 based on Foata normal form. 138/1469 useless extension candidates. Maximal degree in co-relation 3605. Up to 276 conditions per place. [2024-11-27 23:32:53,766 INFO L140 encePairwiseOnDemand]: 18/22 looper letters, 158 selfloop transitions, 12 changer transitions 0/178 dead transitions. [2024-11-27 23:32:53,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 178 transitions, 1902 flow [2024-11-27 23:32:53,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:32:53,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-27 23:32:53,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 173 transitions. [2024-11-27 23:32:53,770 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6553030303030303 [2024-11-27 23:32:53,770 INFO L175 Difference]: Start difference. First operand has 56 places, 33 transitions, 218 flow. Second operand 12 states and 173 transitions. [2024-11-27 23:32:53,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 178 transitions, 1902 flow [2024-11-27 23:32:53,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 178 transitions, 1836 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-27 23:32:53,788 INFO L231 Difference]: Finished difference. Result has 71 places, 40 transitions, 308 flow [2024-11-27 23:32:53,789 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=308, PETRI_PLACES=71, PETRI_TRANSITIONS=40} [2024-11-27 23:32:53,790 INFO L279 CegarLoopForPetriNet]: 20 programPoint places, 51 predicate places. [2024-11-27 23:32:53,792 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 40 transitions, 308 flow [2024-11-27 23:32:53,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.583333333333334) internal successors, (127), 12 states have internal predecessors, (127), 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) [2024-11-27 23:32:53,792 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:32:53,792 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:53,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-27 23:32:53,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:53,993 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 23:32:53,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:53,994 INFO L85 PathProgramCache]: Analyzing trace with hash -786236788, now seen corresponding path program 5 times [2024-11-27 23:32:53,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:53,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059711320] [2024-11-27 23:32:53,994 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 23:32:53,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:54,075 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-27 23:32:54,075 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:32:54,499 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-27 23:32:54,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:54,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059711320] [2024-11-27 23:32:54,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059711320] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:54,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73565199] [2024-11-27 23:32:54,499 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 23:32:54,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:54,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:54,504 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:54,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 23:32:54,694 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-27 23:32:54,694 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:32:54,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 23:32:54,700 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:54,848 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-27 23:32:54,850 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:55,211 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-27 23:32:55,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73565199] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:32:55,211 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:32:55,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 22 [2024-11-27 23:32:55,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653508464] [2024-11-27 23:32:55,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:32:55,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-27 23:32:55,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:55,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-27 23:32:55,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2024-11-27 23:32:55,233 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 22 [2024-11-27 23:32:55,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 40 transitions, 308 flow. Second operand has 22 states, 22 states have (on average 10.409090909090908) internal successors, (229), 22 states have internal predecessors, (229), 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) [2024-11-27 23:32:55,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:32:55,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 22 [2024-11-27 23:32:55,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:32:56,004 INFO L124 PetriNetUnfolderBase]: 950/2481 cut-off events. [2024-11-27 23:32:56,005 INFO L125 PetriNetUnfolderBase]: For 17944/17944 co-relation queries the response was YES. [2024-11-27 23:32:56,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10133 conditions, 2481 events. 950/2481 cut-off events. For 17944/17944 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 16582 event pairs, 34 based on Foata normal form. 230/2681 useless extension candidates. Maximal degree in co-relation 7904. Up to 506 conditions per place. [2024-11-27 23:32:56,031 INFO L140 encePairwiseOnDemand]: 18/22 looper letters, 298 selfloop transitions, 22 changer transitions 0/328 dead transitions. [2024-11-27 23:32:56,032 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 328 transitions, 3600 flow [2024-11-27 23:32:56,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-27 23:32:56,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-27 23:32:56,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 317 transitions. [2024-11-27 23:32:56,034 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6549586776859504 [2024-11-27 23:32:56,034 INFO L175 Difference]: Start difference. First operand has 71 places, 40 transitions, 308 flow. Second operand 22 states and 317 transitions. [2024-11-27 23:32:56,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 328 transitions, 3600 flow [2024-11-27 23:32:56,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 328 transitions, 3594 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-27 23:32:56,072 INFO L231 Difference]: Finished difference. Result has 100 places, 51 transitions, 502 flow [2024-11-27 23:32:56,074 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=502, PETRI_PLACES=100, PETRI_TRANSITIONS=51} [2024-11-27 23:32:56,075 INFO L279 CegarLoopForPetriNet]: 20 programPoint places, 80 predicate places. [2024-11-27 23:32:56,077 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 51 transitions, 502 flow [2024-11-27 23:32:56,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 10.409090909090908) internal successors, (229), 22 states have internal predecessors, (229), 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) [2024-11-27 23:32:56,077 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:32:56,078 INFO L206 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:56,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 23:32:56,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:56,282 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 23:32:56,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:56,283 INFO L85 PathProgramCache]: Analyzing trace with hash -2144309658, now seen corresponding path program 6 times [2024-11-27 23:32:56,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:56,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94957918] [2024-11-27 23:32:56,283 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 23:32:56,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:56,347 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2024-11-27 23:32:56,348 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:32:56,694 INFO L134 CoverageAnalysis]: Checked inductivity of 986 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2024-11-27 23:32:56,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:56,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94957918] [2024-11-27 23:32:56,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94957918] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:56,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182535274] [2024-11-27 23:32:56,695 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 23:32:56,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:56,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:56,697 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:56,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 23:32:56,981 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2024-11-27 23:32:56,981 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:32:56,983 INFO L256 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 23:32:56,990 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:57,203 INFO L134 CoverageAnalysis]: Checked inductivity of 986 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2024-11-27 23:32:57,203 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:57,622 INFO L134 CoverageAnalysis]: Checked inductivity of 986 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2024-11-27 23:32:57,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182535274] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:32:57,622 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:32:57,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 23 [2024-11-27 23:32:57,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849508453] [2024-11-27 23:32:57,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:32:57,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-27 23:32:57,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:57,625 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-27 23:32:57,625 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2024-11-27 23:32:57,646 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 22 [2024-11-27 23:32:57,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 51 transitions, 502 flow. Second operand has 23 states, 23 states have (on average 11.26086956521739) internal successors, (259), 23 states have internal predecessors, (259), 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) [2024-11-27 23:32:57,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:32:57,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 22 [2024-11-27 23:32:57,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:32:58,820 INFO L124 PetriNetUnfolderBase]: 1390/3876 cut-off events. [2024-11-27 23:32:58,820 INFO L125 PetriNetUnfolderBase]: For 47436/47610 co-relation queries the response was YES. [2024-11-27 23:32:58,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18630 conditions, 3876 events. 1390/3876 cut-off events. For 47436/47610 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 27745 event pairs, 64 based on Foata normal form. 230/4068 useless extension candidates. Maximal degree in co-relation 15196. Up to 1323 conditions per place. [2024-11-27 23:32:58,869 INFO L140 encePairwiseOnDemand]: 18/22 looper letters, 507 selfloop transitions, 22 changer transitions 0/538 dead transitions. [2024-11-27 23:32:58,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 538 transitions, 7890 flow [2024-11-27 23:32:58,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-27 23:32:58,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-27 23:32:58,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 316 transitions. [2024-11-27 23:32:58,871 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6528925619834711 [2024-11-27 23:32:58,871 INFO L175 Difference]: Start difference. First operand has 100 places, 51 transitions, 502 flow. Second operand 22 states and 316 transitions. [2024-11-27 23:32:58,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 538 transitions, 7890 flow [2024-11-27 23:32:58,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 538 transitions, 7512 flow, removed 0 selfloop flow, removed 9 redundant places. [2024-11-27 23:32:58,936 INFO L231 Difference]: Finished difference. Result has 123 places, 62 transitions, 684 flow [2024-11-27 23:32:58,936 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=684, PETRI_PLACES=123, PETRI_TRANSITIONS=62} [2024-11-27 23:32:58,937 INFO L279 CegarLoopForPetriNet]: 20 programPoint places, 103 predicate places. [2024-11-27 23:32:58,937 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 62 transitions, 684 flow [2024-11-27 23:32:58,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 11.26086956521739) internal successors, (259), 23 states have internal predecessors, (259), 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) [2024-11-27 23:32:58,937 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:32:58,937 INFO L206 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:58,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 23:32:59,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:59,138 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 23:32:59,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:59,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1480060298, now seen corresponding path program 7 times [2024-11-27 23:32:59,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:59,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388085198] [2024-11-27 23:32:59,140 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 23:32:59,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:59,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:32:59,270 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:32:59,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:32:59,423 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-27 23:32:59,423 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 23:32:59,424 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-27 23:32:59,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-11-27 23:32:59,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 23:32:59,427 INFO L422 BasicCegarLoop]: Path program histogram: [7, 1, 1] [2024-11-27 23:32:59,592 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-27 23:32:59,592 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 23:32:59,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:32:59 BasicIcfg [2024-11-27 23:32:59,598 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 23:32:59,598 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:32:59,598 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:32:59,599 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:32:59,599 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:32:48" (3/4) ... [2024-11-27 23:32:59,600 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-27 23:32:59,738 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 47. [2024-11-27 23:32:59,826 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 23:32:59,827 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 23:32:59,827 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:32:59,828 INFO L158 Benchmark]: Toolchain (without parser) took 13122.10ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 90.3MB in the beginning and 90.4MB in the end (delta: -110.0kB). Peak memory consumption was 136.1MB. Max. memory is 16.1GB. [2024-11-27 23:32:59,828 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory was 74.1MB in the beginning and 74.0MB in the end (delta: 98.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:32:59,828 INFO L158 Benchmark]: CACSL2BoogieTranslator took 825.74ms. Allocated memory is still 117.4MB. Free memory was 90.1MB in the beginning and 52.5MB in the end (delta: 37.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-27 23:32:59,829 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.06ms. Allocated memory is still 117.4MB. Free memory was 52.5MB in the beginning and 50.2MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:32:59,829 INFO L158 Benchmark]: Boogie Preprocessor took 69.64ms. Allocated memory is still 117.4MB. Free memory was 50.2MB in the beginning and 48.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:32:59,829 INFO L158 Benchmark]: RCFGBuilder took 843.30ms. Allocated memory is still 117.4MB. Free memory was 48.2MB in the beginning and 43.4MB in the end (delta: 4.8MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2024-11-27 23:32:59,830 INFO L158 Benchmark]: TraceAbstraction took 11081.34ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 42.9MB in the beginning and 49.6MB in the end (delta: -6.7MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. [2024-11-27 23:32:59,830 INFO L158 Benchmark]: Witness Printer took 228.74ms. Allocated memory is still 184.5MB. Free memory was 49.6MB in the beginning and 90.4MB in the end (delta: -40.8MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2024-11-27 23:32:59,832 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory was 74.1MB in the beginning and 74.0MB in the end (delta: 98.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 825.74ms. Allocated memory is still 117.4MB. Free memory was 90.1MB in the beginning and 52.5MB in the end (delta: 37.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.06ms. Allocated memory is still 117.4MB. Free memory was 52.5MB in the beginning and 50.2MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 69.64ms. Allocated memory is still 117.4MB. Free memory was 50.2MB in the beginning and 48.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 843.30ms. Allocated memory is still 117.4MB. Free memory was 48.2MB in the beginning and 43.4MB in the end (delta: 4.8MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * TraceAbstraction took 11081.34ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 42.9MB in the beginning and 49.6MB in the end (delta: -6.7MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. * Witness Printer took 228.74ms. Allocated memory is still 184.5MB. Free memory was 49.6MB in the beginning and 90.4MB in the end (delta: -40.8MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1320] 0 int myglobal; [L1321] 0 pthread_mutex_t mymutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1340] 0 pthread_t mythread; [L1341] 0 int i; [L1342] FCALL, FORK 0 pthread_create( &mythread, ((void *)0), thread_function_datarace, ((void *)0)) VAL [\old(arg)={0:0}, myglobal=0, mythread=-1] [L1342] COND FALSE 0 !(pthread_create( &mythread, ((void *)0), thread_function_datarace, ((void *)0))) [L1352] 0 i=0 VAL [\old(arg)={0:0}, i=0, myglobal=0, mythread=-1] [L1324] 1 int i,j; [L1325] 1 i=0 VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=0] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=0, i=0, myglobal=0, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=0, i=0, myglobal=1, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=0, i=1, myglobal=1, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=1] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=0, j=1, myglobal=1] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=0, j=2, myglobal=2] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=1, j=2, myglobal=2] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=1, j=2, myglobal=2] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=1, j=2, myglobal=2] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=1, j=3, myglobal=3] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=2, j=3, myglobal=3] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=2, j=3, myglobal=3] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=2, j=3, myglobal=3] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=2, j=4, myglobal=4] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=3, j=4, myglobal=4] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=3, j=4, myglobal=4] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=3, j=4, myglobal=4] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=3, j=5, myglobal=5] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=4, j=5, myglobal=5] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=4, j=5, myglobal=5] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=4, j=5, myglobal=5] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=4, j=6, myglobal=6] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=5, j=6, myglobal=6] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=5, j=6, myglobal=6] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=5, j=6, myglobal=6] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=5, j=7, myglobal=7] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=6, j=7, myglobal=7] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=6, j=7, myglobal=7] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=6, j=7, myglobal=7] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=6, j=8, myglobal=8] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=7, j=8, myglobal=8] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=7, j=8, myglobal=8] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=7, j=8, myglobal=8] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=7, j=9, myglobal=9] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=8, j=9, myglobal=9] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=8, j=9, myglobal=9] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=8, j=9, myglobal=9] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=8, j=10, myglobal=10] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=9, j=10, myglobal=10] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=9, j=10, myglobal=10] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=9, j=10, myglobal=10] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=9, j=11, myglobal=11] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=10, j=11, myglobal=11] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=10, j=11, myglobal=11] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=10, j=11, myglobal=11] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=10, j=12, myglobal=12] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=11, j=12, myglobal=12] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=11, j=12, myglobal=12] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=11, j=12, myglobal=12] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=11, j=13, myglobal=13] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=12, j=13, myglobal=13] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=12, j=13, myglobal=13] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=12, j=13, myglobal=13] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=12, j=14, myglobal=14] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=13, j=14, myglobal=14] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=13, j=14, myglobal=14] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=13, j=14, myglobal=14] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=13, j=15, myglobal=15] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=14, j=15, myglobal=15] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=14, j=15, myglobal=15] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=14, j=15, myglobal=15] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=14, j=16, myglobal=16] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=15, j=16, myglobal=16] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=15, j=16, myglobal=16] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=15, j=16, myglobal=16] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=15, j=17, myglobal=17] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=16, j=17, myglobal=17] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=16, j=17, myglobal=17] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=16, j=17, myglobal=17] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=16, j=18, myglobal=18] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=17, j=18, myglobal=18] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=17, j=18, myglobal=18] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=17, j=18, myglobal=18] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=17, j=19, myglobal=19] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=18, j=19, myglobal=19] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=18, j=19, myglobal=19] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=18, j=19, myglobal=19] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=18, j=20, myglobal=20] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=19, j=20, myglobal=20] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=19, j=20, myglobal=20] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=19, j=20, myglobal=20] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=19, j=21, myglobal=21] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=20, j=21, myglobal=21] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=1, i=20, j=21, myglobal=21, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=1, i=20, j=21, myglobal=22, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=2, i=20, j=21, myglobal=22, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=2, i=20, j=21, myglobal=22, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=2, i=20, j=21, myglobal=23, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=3, j=21, myglobal=23, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=3, j=21, myglobal=23, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=3, j=21, myglobal=24, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=4, j=21, myglobal=24, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=4, j=21, myglobal=24, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=4, j=21, myglobal=25, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=5, j=21, myglobal=25, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=5, j=21, myglobal=25, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=5, j=21, myglobal=26, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=6, j=21, myglobal=26, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=6, j=21, myglobal=26, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=6, j=21, myglobal=27, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=7, j=21, myglobal=27, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=7, j=21, myglobal=27, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=7, j=21, myglobal=28, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=8, j=21, myglobal=28, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=8, j=21, myglobal=28, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=8, j=21, myglobal=29, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=9, j=21, myglobal=29, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=9, j=21, myglobal=29, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=9, j=21, myglobal=30, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=10, i=20, j=21, myglobal=30, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=10, i=20, j=21, myglobal=30, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=10, i=20, j=21, myglobal=31, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=11, i=20, j=21, myglobal=31, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=11, i=20, j=21, myglobal=31, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=11, i=20, j=21, myglobal=32, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=12, i=20, j=21, myglobal=32, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=12, i=20, j=21, myglobal=32, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=12, i=20, j=21, myglobal=33, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=13, i=20, j=21, myglobal=33, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=13, i=20, j=21, myglobal=33, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=13, i=20, j=21, myglobal=34, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=14, i=20, j=21, myglobal=34, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=14, i=20, j=21, myglobal=34, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=14, i=20, j=21, myglobal=35, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=15, i=20, j=21, myglobal=35, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=15, i=20, j=21, myglobal=35, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=15, i=20, j=21, myglobal=36, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=16, i=20, j=21, myglobal=36, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=16, i=20, j=21, myglobal=36, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=16, i=20, j=21, myglobal=37, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=17, i=20, j=21, myglobal=37, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=17, i=20, j=21, myglobal=37, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=17, i=20, j=21, myglobal=38, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=18, i=20, j=21, myglobal=38, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=18, i=20, j=21, myglobal=38, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=18, i=20, j=21, myglobal=39, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=19, i=20, j=21, myglobal=39, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=19, i=20, j=21, myglobal=39, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=19, i=20, j=21, myglobal=40, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=20, j=21, myglobal=40, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=20, j=21, myglobal=40, mythread=-1] [L1325] COND FALSE 1 !(i<20) [L1336] 1 return ((void *)0); [L1358] FCALL, JOIN 1 pthread_join ( mythread, ((void *)0) ) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, i=20, i=20, j=21, myglobal=40, mythread=-1] [L1358] COND FALSE 0 !(pthread_join ( mythread, ((void *)0) )) [L1362] CALL 0 __VERIFIER_assert(myglobal != 40) [L13] COND TRUE 0 !(cond) VAL [\old(arg)={0:0}, \old(cond)=0, \result={0:0}, arg={0:0}, cond=0, i=20, j=21, myglobal=40] [L13] 0 reach_error() VAL [\old(arg)={0:0}, \old(cond)=0, \result={0:0}, arg={0:0}, cond=0, i=20, j=21, myglobal=40] - UnprovableResult [Line: 1342]: 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 with 1 thread instances CFG has 3 procedures, 28 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 10.8s, OverallIterations: 9, TraceHistogramMax: 20, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 441 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 428 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 718 IncrementalHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 1 mSDtfsCounter, 718 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 780 GetRequests, 702 SyntacticMatches, 4 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=684occurred in iteration=8, InterpolantAutomatonStates: 86, 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: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 933 NumberOfCodeBlocks, 921 NumberOfCodeBlocksAsserted, 83 NumberOfCheckSat, 1112 ConstructedInterpolants, 0 QuantifiedInterpolants, 3030 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1243 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 20 InterpolantComputations, 2 PerfectInterpolantSequences, 3205/5272 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, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-27 23:32:59,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d3c512-37de-496b-8828-454681b2a982/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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