./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:34:25,277 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:34:25,339 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-12-02 14:34:25,344 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:34:25,345 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:34:25,368 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:34:25,369 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:34:25,369 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:34:25,370 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:34:25,370 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:34:25,370 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:34:25,370 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:34:25,370 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:34:25,370 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:34:25,370 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:34:25,371 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 14:34:25,371 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 14:34:25,371 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 14:34:25,371 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:34:25,371 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:34:25,371 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:34:25,371 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:34:25,371 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-12-02 14:34:25,371 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 14:34:25,371 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 14:34:25,372 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:34:25,372 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:34:25,372 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:34:25,372 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:34:25,372 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:34:25,372 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:34:25,372 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:34:25,372 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:34:25,372 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:34:25,372 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:34:25,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:34:25,373 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:34:25,373 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:34:25,373 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:34:25,373 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:34:25,373 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 14:34:25,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 14:34:25,373 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:34:25,373 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:34:25,373 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:34:25,373 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:34:25,374 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_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1 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 ! data-race) ) 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 -> a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 [2024-12-02 14:34:25,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:34:25,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:34:25,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:34:25,607 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:34:25,607 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:34:25,609 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i [2024-12-02 14:34:28,287 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/data/cf1ba175c/891613dbd4b44812bd1f5a894b9feb58/FLAG57eba1465 [2024-12-02 14:34:28,541 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:34:28,541 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i [2024-12-02 14:34:28,555 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/data/cf1ba175c/891613dbd4b44812bd1f5a894b9feb58/FLAG57eba1465 [2024-12-02 14:34:28,569 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/data/cf1ba175c/891613dbd4b44812bd1f5a894b9feb58 [2024-12-02 14:34:28,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:34:28,573 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:34:28,574 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:34:28,574 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:34:28,577 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:34:28,578 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:34:28" (1/1) ... [2024-12-02 14:34:28,579 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b104140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:34:28, skipping insertion in model container [2024-12-02 14:34:28,579 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:34:28" (1/1) ... [2024-12-02 14:34:28,610 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:34:29,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:34:29,065 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:34:29,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:34:29,175 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:34:29,175 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:34:29 WrapperNode [2024-12-02 14:34:29,175 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:34:29,176 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:34:29,176 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:34:29,176 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:34:29,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:34:29" (1/1) ... [2024-12-02 14:34:29,196 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:34:29" (1/1) ... [2024-12-02 14:34:29,224 INFO L138 Inliner]: procedures = 370, calls = 46, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 243 [2024-12-02 14:34:29,224 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:34:29,225 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:34:29,225 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:34:29,225 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:34:29,232 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:34:29" (1/1) ... [2024-12-02 14:34:29,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:34:29" (1/1) ... [2024-12-02 14:34:29,237 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:34:29" (1/1) ... [2024-12-02 14:34:29,238 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:34:29" (1/1) ... [2024-12-02 14:34:29,254 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:34:29" (1/1) ... [2024-12-02 14:34:29,255 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:34:29" (1/1) ... [2024-12-02 14:34:29,258 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:34:29" (1/1) ... [2024-12-02 14:34:29,259 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:34:29" (1/1) ... [2024-12-02 14:34:29,260 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:34:29" (1/1) ... [2024-12-02 14:34:29,263 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:34:29,263 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:34:29,263 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:34:29,264 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:34:29,264 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:34:29" (1/1) ... [2024-12-02 14:34:29,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:34:29,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:34:29,294 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:34:29,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:34:29,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-02 14:34:29,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-12-02 14:34:29,320 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 14:34:29,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-02 14:34:29,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-02 14:34:29,320 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 14:34:29,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 14:34:29,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:34:29,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-02 14:34:29,320 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-12-02 14:34:29,321 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-12-02 14:34:29,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-02 14:34:29,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:34:29,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:34:29,322 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 14:34:29,454 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:34:29,455 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:34:29,926 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 14:34:29,927 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:34:29,955 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:34:29,955 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 14:34:29,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:34:29 BoogieIcfgContainer [2024-12-02 14:34:29,956 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:34:29,958 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:34:29,958 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:34:29,962 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:34:29,963 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:34:28" (1/3) ... [2024-12-02 14:34:29,963 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@700c4c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:34:29, skipping insertion in model container [2024-12-02 14:34:29,963 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:34:29" (2/3) ... [2024-12-02 14:34:29,963 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@700c4c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:34:29, skipping insertion in model container [2024-12-02 14:34:29,964 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:34:29" (3/3) ... [2024-12-02 14:34:29,965 INFO L128 eAbstractionObserver]: Analyzing ICFG 09-regions_26-alloc_region_rc.i [2024-12-02 14:34:29,980 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:34:29,981 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 09-regions_26-alloc_region_rc.i that has 2 procedures, 272 locations, 1 initial locations, 1 loop locations, and 20 error locations. [2024-12-02 14:34:29,982 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 14:34:30,070 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-02 14:34:30,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 275 places, 273 transitions, 550 flow [2024-12-02 14:34:30,222 INFO L124 PetriNetUnfolderBase]: 2/272 cut-off events. [2024-12-02 14:34:30,224 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 14:34:30,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 272 events. 2/272 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 258 event pairs, 0 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 202. Up to 2 conditions per place. [2024-12-02 14:34:30,231 INFO L82 GeneralOperation]: Start removeDead. Operand has 275 places, 273 transitions, 550 flow [2024-12-02 14:34:30,237 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 274 places, 272 transitions, 547 flow [2024-12-02 14:34:30,244 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:34:30,256 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;@5d7ebe08, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:34:30,256 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-12-02 14:34:30,264 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 14:34:30,264 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2024-12-02 14:34:30,264 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 14:34:30,264 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:34:30,265 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:34:30,265 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-12-02 14:34:30,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:34:30,271 INFO L85 PathProgramCache]: Analyzing trace with hash -527324182, now seen corresponding path program 1 times [2024-12-02 14:34:30,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:34:30,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407575993] [2024-12-02 14:34:30,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:34:30,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:34:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:34:30,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:34:30,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:34:30,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407575993] [2024-12-02 14:34:30,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407575993] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:34:30,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:34:30,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:34:30,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848912348] [2024-12-02 14:34:30,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:34:30,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:34:30,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:34:30,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:34:30,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:34:31,556 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 273 [2024-12-02 14:34:31,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 272 transitions, 547 flow. Second operand has 6 states, 6 states have (on average 175.33333333333334) internal successors, (1052), 6 states have internal predecessors, (1052), 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) [2024-12-02 14:34:31,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:34:31,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 273 [2024-12-02 14:34:31,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:34:32,668 INFO L124 PetriNetUnfolderBase]: 1377/5015 cut-off events. [2024-12-02 14:34:32,668 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 14:34:32,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7809 conditions, 5015 events. 1377/5015 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 37623 event pairs, 1344 based on Foata normal form. 36/4687 useless extension candidates. Maximal degree in co-relation 7712. Up to 2785 conditions per place. [2024-12-02 14:34:32,693 INFO L140 encePairwiseOnDemand]: 266/273 looper letters, 92 selfloop transitions, 5 changer transitions 0/270 dead transitions. [2024-12-02 14:34:32,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 270 transitions, 737 flow [2024-12-02 14:34:32,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:34:32,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 14:34:32,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1143 transitions. [2024-12-02 14:34:32,711 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6978021978021978 [2024-12-02 14:34:32,712 INFO L175 Difference]: Start difference. First operand has 274 places, 272 transitions, 547 flow. Second operand 6 states and 1143 transitions. [2024-12-02 14:34:32,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 270 transitions, 737 flow [2024-12-02 14:34:32,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 270 transitions, 736 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 14:34:32,724 INFO L231 Difference]: Finished difference. Result has 277 places, 270 transitions, 552 flow [2024-12-02 14:34:32,727 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=552, PETRI_PLACES=277, PETRI_TRANSITIONS=270} [2024-12-02 14:34:32,731 INFO L279 CegarLoopForPetriNet]: 274 programPoint places, 3 predicate places. [2024-12-02 14:34:32,731 INFO L471 AbstractCegarLoop]: Abstraction has has 277 places, 270 transitions, 552 flow [2024-12-02 14:34:32,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 175.33333333333334) internal successors, (1052), 6 states have internal predecessors, (1052), 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) [2024-12-02 14:34:32,732 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:34:32,732 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:34:32,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 14:34:32,733 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-12-02 14:34:32,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:34:32,733 INFO L85 PathProgramCache]: Analyzing trace with hash 940357652, now seen corresponding path program 1 times [2024-12-02 14:34:32,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:34:32,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552448462] [2024-12-02 14:34:32,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:34:32,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:34:32,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:34:33,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:34:33,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:34:33,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552448462] [2024-12-02 14:34:33,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552448462] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:34:33,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:34:33,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:34:33,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629184348] [2024-12-02 14:34:33,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:34:33,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:34:33,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:34:33,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:34:33,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:34:33,595 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 273 [2024-12-02 14:34:33,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 270 transitions, 552 flow. Second operand has 6 states, 6 states have (on average 202.83333333333334) internal successors, (1217), 6 states have internal predecessors, (1217), 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) [2024-12-02 14:34:33,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:34:33,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 273 [2024-12-02 14:34:33,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:34:34,595 INFO L124 PetriNetUnfolderBase]: 762/4094 cut-off events. [2024-12-02 14:34:34,596 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 14:34:34,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5678 conditions, 4094 events. 762/4094 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 31513 event pairs, 460 based on Foata normal form. 0/3734 useless extension candidates. Maximal degree in co-relation 5631. Up to 1372 conditions per place. [2024-12-02 14:34:34,620 INFO L140 encePairwiseOnDemand]: 241/273 looper letters, 81 selfloop transitions, 90 changer transitions 0/370 dead transitions. [2024-12-02 14:34:34,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 370 transitions, 1094 flow [2024-12-02 14:34:34,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:34:34,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 14:34:34,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1379 transitions. [2024-12-02 14:34:34,626 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8418803418803419 [2024-12-02 14:34:34,626 INFO L175 Difference]: Start difference. First operand has 277 places, 270 transitions, 552 flow. Second operand 6 states and 1379 transitions. [2024-12-02 14:34:34,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 370 transitions, 1094 flow [2024-12-02 14:34:34,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 370 transitions, 1084 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 14:34:34,638 INFO L231 Difference]: Finished difference. Result has 281 places, 353 transitions, 1118 flow [2024-12-02 14:34:34,639 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1118, PETRI_PLACES=281, PETRI_TRANSITIONS=353} [2024-12-02 14:34:34,639 INFO L279 CegarLoopForPetriNet]: 274 programPoint places, 7 predicate places. [2024-12-02 14:34:34,640 INFO L471 AbstractCegarLoop]: Abstraction has has 281 places, 353 transitions, 1118 flow [2024-12-02 14:34:34,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 202.83333333333334) internal successors, (1217), 6 states have internal predecessors, (1217), 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) [2024-12-02 14:34:34,641 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:34:34,641 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:34:34,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 14:34:34,641 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-12-02 14:34:34,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:34:34,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1512683605, now seen corresponding path program 1 times [2024-12-02 14:34:34,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:34:34,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49994374] [2024-12-02 14:34:34,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:34:34,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:34:34,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:34:35,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:34:35,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:34:35,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49994374] [2024-12-02 14:34:35,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49994374] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:34:35,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:34:35,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:34:35,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024529308] [2024-12-02 14:34:35,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:34:35,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:34:35,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:34:35,104 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:34:35,104 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:34:35,525 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 273 [2024-12-02 14:34:35,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 353 transitions, 1118 flow. Second operand has 6 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 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) [2024-12-02 14:34:35,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:34:35,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 273 [2024-12-02 14:34:35,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:34:36,836 INFO L124 PetriNetUnfolderBase]: 2110/7422 cut-off events. [2024-12-02 14:34:36,836 INFO L125 PetriNetUnfolderBase]: For 1551/1556 co-relation queries the response was YES. [2024-12-02 14:34:36,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13852 conditions, 7422 events. 2110/7422 cut-off events. For 1551/1556 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 59997 event pairs, 1264 based on Foata normal form. 0/6804 useless extension candidates. Maximal degree in co-relation 13747. Up to 4041 conditions per place. [2024-12-02 14:34:36,874 INFO L140 encePairwiseOnDemand]: 232/273 looper letters, 187 selfloop transitions, 123 changer transitions 0/485 dead transitions. [2024-12-02 14:34:36,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 485 transitions, 2162 flow [2024-12-02 14:34:36,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:34:36,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 14:34:36,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1291 transitions. [2024-12-02 14:34:36,877 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7881562881562881 [2024-12-02 14:34:36,877 INFO L175 Difference]: Start difference. First operand has 281 places, 353 transitions, 1118 flow. Second operand 6 states and 1291 transitions. [2024-12-02 14:34:36,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 485 transitions, 2162 flow [2024-12-02 14:34:36,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 485 transitions, 2162 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 14:34:36,892 INFO L231 Difference]: Finished difference. Result has 290 places, 469 transitions, 2070 flow [2024-12-02 14:34:36,892 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=1116, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2070, PETRI_PLACES=290, PETRI_TRANSITIONS=469} [2024-12-02 14:34:36,893 INFO L279 CegarLoopForPetriNet]: 274 programPoint places, 16 predicate places. [2024-12-02 14:34:36,893 INFO L471 AbstractCegarLoop]: Abstraction has has 290 places, 469 transitions, 2070 flow [2024-12-02 14:34:36,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 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) [2024-12-02 14:34:36,894 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:34:36,894 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:34:36,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 14:34:36,895 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-12-02 14:34:36,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:34:36,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1900410785, now seen corresponding path program 1 times [2024-12-02 14:34:36,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:34:36,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455270153] [2024-12-02 14:34:36,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:34:36,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:34:36,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:34:37,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:34:37,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:34:37,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455270153] [2024-12-02 14:34:37,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455270153] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:34:37,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:34:37,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:34:37,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806981526] [2024-12-02 14:34:37,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:34:37,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:34:37,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:34:37,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:34:37,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:34:37,656 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 273 [2024-12-02 14:34:37,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 469 transitions, 2070 flow. Second operand has 6 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 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) [2024-12-02 14:34:37,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:34:37,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 273 [2024-12-02 14:34:37,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:34:39,185 INFO L124 PetriNetUnfolderBase]: 2411/8366 cut-off events. [2024-12-02 14:34:39,186 INFO L125 PetriNetUnfolderBase]: For 3692/3703 co-relation queries the response was YES. [2024-12-02 14:34:39,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17817 conditions, 8366 events. 2411/8366 cut-off events. For 3692/3703 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 68345 event pairs, 1292 based on Foata normal form. 0/7722 useless extension candidates. Maximal degree in co-relation 17698. Up to 4366 conditions per place. [2024-12-02 14:34:39,221 INFO L140 encePairwiseOnDemand]: 232/273 looper letters, 299 selfloop transitions, 123 changer transitions 0/601 dead transitions. [2024-12-02 14:34:39,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 601 transitions, 3562 flow [2024-12-02 14:34:39,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:34:39,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 14:34:39,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1291 transitions. [2024-12-02 14:34:39,225 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7881562881562881 [2024-12-02 14:34:39,225 INFO L175 Difference]: Start difference. First operand has 290 places, 469 transitions, 2070 flow. Second operand 6 states and 1291 transitions. [2024-12-02 14:34:39,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 601 transitions, 3562 flow [2024-12-02 14:34:39,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 601 transitions, 3402 flow, removed 80 selfloop flow, removed 0 redundant places. [2024-12-02 14:34:39,242 INFO L231 Difference]: Finished difference. Result has 299 places, 585 transitions, 3086 flow [2024-12-02 14:34:39,243 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=1908, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3086, PETRI_PLACES=299, PETRI_TRANSITIONS=585} [2024-12-02 14:34:39,243 INFO L279 CegarLoopForPetriNet]: 274 programPoint places, 25 predicate places. [2024-12-02 14:34:39,243 INFO L471 AbstractCegarLoop]: Abstraction has has 299 places, 585 transitions, 3086 flow [2024-12-02 14:34:39,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 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) [2024-12-02 14:34:39,244 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:34:39,244 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:34:39,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 14:34:39,245 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-12-02 14:34:39,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:34:39,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1673401969, now seen corresponding path program 1 times [2024-12-02 14:34:39,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:34:39,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107517164] [2024-12-02 14:34:39,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:34:39,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:34:39,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:34:39,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:34:39,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:34:39,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107517164] [2024-12-02 14:34:39,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107517164] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:34:39,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:34:39,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:34:39,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732994011] [2024-12-02 14:34:39,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:34:39,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:34:39,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:34:39,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:34:39,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:34:39,993 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 273 [2024-12-02 14:34:39,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 585 transitions, 3086 flow. Second operand has 6 states, 6 states have (on average 184.16666666666666) internal successors, (1105), 6 states have internal predecessors, (1105), 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) [2024-12-02 14:34:39,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:34:39,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 273 [2024-12-02 14:34:39,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:34:41,597 INFO L124 PetriNetUnfolderBase]: 2735/9170 cut-off events. [2024-12-02 14:34:41,597 INFO L125 PetriNetUnfolderBase]: For 5379/5442 co-relation queries the response was YES. [2024-12-02 14:34:41,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21670 conditions, 9170 events. 2735/9170 cut-off events. For 5379/5442 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 75300 event pairs, 1246 based on Foata normal form. 0/8504 useless extension candidates. Maximal degree in co-relation 21538. Up to 4881 conditions per place. [2024-12-02 14:34:41,638 INFO L140 encePairwiseOnDemand]: 230/273 looper letters, 360 selfloop transitions, 180 changer transitions 0/768 dead transitions. [2024-12-02 14:34:41,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 768 transitions, 4754 flow [2024-12-02 14:34:41,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:34:41,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 14:34:41,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1338 transitions. [2024-12-02 14:34:41,643 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8168498168498168 [2024-12-02 14:34:41,643 INFO L175 Difference]: Start difference. First operand has 299 places, 585 transitions, 3086 flow. Second operand 6 states and 1338 transitions. [2024-12-02 14:34:41,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 768 transitions, 4754 flow [2024-12-02 14:34:41,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 768 transitions, 4358 flow, removed 198 selfloop flow, removed 0 redundant places. [2024-12-02 14:34:41,682 INFO L231 Difference]: Finished difference. Result has 309 places, 752 transitions, 4086 flow [2024-12-02 14:34:41,683 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=2702, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=585, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=513, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4086, PETRI_PLACES=309, PETRI_TRANSITIONS=752} [2024-12-02 14:34:41,683 INFO L279 CegarLoopForPetriNet]: 274 programPoint places, 35 predicate places. [2024-12-02 14:34:41,684 INFO L471 AbstractCegarLoop]: Abstraction has has 309 places, 752 transitions, 4086 flow [2024-12-02 14:34:41,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 184.16666666666666) internal successors, (1105), 6 states have internal predecessors, (1105), 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) [2024-12-02 14:34:41,685 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:34:41,685 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:34:41,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 14:34:41,685 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-12-02 14:34:41,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:34:41,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1877789814, now seen corresponding path program 1 times [2024-12-02 14:34:41,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:34:41,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556925419] [2024-12-02 14:34:41,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:34:41,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:34:41,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:34:42,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:34:42,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:34:42,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556925419] [2024-12-02 14:34:42,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556925419] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:34:42,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:34:42,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:34:42,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694167375] [2024-12-02 14:34:42,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:34:42,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:34:42,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:34:42,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:34:42,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:34:42,684 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 273 [2024-12-02 14:34:42,685 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 752 transitions, 4086 flow. Second operand has 6 states, 6 states have (on average 184.16666666666666) internal successors, (1105), 6 states have internal predecessors, (1105), 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) [2024-12-02 14:34:42,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:34:42,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 273 [2024-12-02 14:34:42,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:34:44,638 INFO L124 PetriNetUnfolderBase]: 3192/10515 cut-off events. [2024-12-02 14:34:44,638 INFO L125 PetriNetUnfolderBase]: For 8626/8717 co-relation queries the response was YES. [2024-12-02 14:34:44,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27972 conditions, 10515 events. 3192/10515 cut-off events. For 8626/8717 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 87900 event pairs, 1284 based on Foata normal form. 0/9822 useless extension candidates. Maximal degree in co-relation 27835. Up to 5371 conditions per place. [2024-12-02 14:34:44,696 INFO L140 encePairwiseOnDemand]: 230/273 looper letters, 513 selfloop transitions, 180 changer transitions 0/935 dead transitions. [2024-12-02 14:34:44,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 935 transitions, 6354 flow [2024-12-02 14:34:44,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:34:44,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 14:34:44,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1338 transitions. [2024-12-02 14:34:44,700 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8168498168498168 [2024-12-02 14:34:44,700 INFO L175 Difference]: Start difference. First operand has 309 places, 752 transitions, 4086 flow. Second operand 6 states and 1338 transitions. [2024-12-02 14:34:44,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 935 transitions, 6354 flow [2024-12-02 14:34:44,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 935 transitions, 6300 flow, removed 27 selfloop flow, removed 0 redundant places. [2024-12-02 14:34:44,754 INFO L231 Difference]: Finished difference. Result has 319 places, 919 transitions, 5722 flow [2024-12-02 14:34:44,755 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=4032, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=752, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=680, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5722, PETRI_PLACES=319, PETRI_TRANSITIONS=919} [2024-12-02 14:34:44,756 INFO L279 CegarLoopForPetriNet]: 274 programPoint places, 45 predicate places. [2024-12-02 14:34:44,756 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 919 transitions, 5722 flow [2024-12-02 14:34:44,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 184.16666666666666) internal successors, (1105), 6 states have internal predecessors, (1105), 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) [2024-12-02 14:34:44,757 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:34:44,757 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:34:44,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 14:34:44,757 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-12-02 14:34:44,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:34:44,758 INFO L85 PathProgramCache]: Analyzing trace with hash 482397346, now seen corresponding path program 1 times [2024-12-02 14:34:44,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:34:44,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072666720] [2024-12-02 14:34:44,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:34:44,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:34:44,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:34:45,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:34:45,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:34:45,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072666720] [2024-12-02 14:34:45,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072666720] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:34:45,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:34:45,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 14:34:45,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803048560] [2024-12-02 14:34:45,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:34:45,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 14:34:45,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:34:45,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 14:34:45,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:34:47,888 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-12-02 14:34:47,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 919 transitions, 5722 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 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) [2024-12-02 14:34:47,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:34:47,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-12-02 14:34:47,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:34:52,526 INFO L124 PetriNetUnfolderBase]: 4080/12657 cut-off events. [2024-12-02 14:34:52,526 INFO L125 PetriNetUnfolderBase]: For 15501/15596 co-relation queries the response was YES. [2024-12-02 14:34:52,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38134 conditions, 12657 events. 4080/12657 cut-off events. For 15501/15596 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 105376 event pairs, 787 based on Foata normal form. 37/12063 useless extension candidates. Maximal degree in co-relation 37985. Up to 4181 conditions per place. [2024-12-02 14:34:52,584 INFO L140 encePairwiseOnDemand]: 216/273 looper letters, 906 selfloop transitions, 252 changer transitions 0/1377 dead transitions. [2024-12-02 14:34:52,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 1377 transitions, 10662 flow [2024-12-02 14:34:52,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-12-02 14:34:52,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-12-02 14:34:52,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 4735 transitions. [2024-12-02 14:34:52,590 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6670893209354748 [2024-12-02 14:34:52,590 INFO L175 Difference]: Start difference. First operand has 319 places, 919 transitions, 5722 flow. Second operand 26 states and 4735 transitions. [2024-12-02 14:34:52,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 1377 transitions, 10662 flow [2024-12-02 14:34:52,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 1377 transitions, 10302 flow, removed 180 selfloop flow, removed 0 redundant places. [2024-12-02 14:34:52,664 INFO L231 Difference]: Finished difference. Result has 363 places, 1001 transitions, 6977 flow [2024-12-02 14:34:52,665 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=5362, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=919, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=173, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=705, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=6977, PETRI_PLACES=363, PETRI_TRANSITIONS=1001} [2024-12-02 14:34:52,665 INFO L279 CegarLoopForPetriNet]: 274 programPoint places, 89 predicate places. [2024-12-02 14:34:52,665 INFO L471 AbstractCegarLoop]: Abstraction has has 363 places, 1001 transitions, 6977 flow [2024-12-02 14:34:52,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 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) [2024-12-02 14:34:52,667 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:34:52,667 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:34:52,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 14:34:52,667 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-12-02 14:34:52,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:34:52,667 INFO L85 PathProgramCache]: Analyzing trace with hash 743987164, now seen corresponding path program 2 times [2024-12-02 14:34:52,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:34:52,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267973116] [2024-12-02 14:34:52,668 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 14:34:52,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:34:52,698 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 14:34:52,698 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 14:34:53,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:34:53,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:34:53,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267973116] [2024-12-02 14:34:53,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267973116] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:34:53,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:34:53,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 14:34:53,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137626627] [2024-12-02 14:34:53,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:34:53,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 14:34:53,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:34:53,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 14:34:53,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:34:55,387 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-12-02 14:34:55,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 1001 transitions, 6977 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 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) [2024-12-02 14:34:55,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:34:55,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-12-02 14:34:55,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:34:59,537 INFO L124 PetriNetUnfolderBase]: 5056/15659 cut-off events. [2024-12-02 14:34:59,537 INFO L125 PetriNetUnfolderBase]: For 27091/27414 co-relation queries the response was YES. [2024-12-02 14:34:59,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51560 conditions, 15659 events. 5056/15659 cut-off events. For 27091/27414 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 135444 event pairs, 1280 based on Foata normal form. 51/14943 useless extension candidates. Maximal degree in co-relation 51391. Up to 2883 conditions per place. [2024-12-02 14:34:59,622 INFO L140 encePairwiseOnDemand]: 215/273 looper letters, 1322 selfloop transitions, 193 changer transitions 0/1734 dead transitions. [2024-12-02 14:34:59,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 384 places, 1734 transitions, 15673 flow [2024-12-02 14:34:59,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 14:34:59,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-12-02 14:34:59,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3946 transitions. [2024-12-02 14:34:59,628 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.657009657009657 [2024-12-02 14:34:59,628 INFO L175 Difference]: Start difference. First operand has 363 places, 1001 transitions, 6977 flow. Second operand 22 states and 3946 transitions. [2024-12-02 14:34:59,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 384 places, 1734 transitions, 15673 flow [2024-12-02 14:34:59,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 378 places, 1734 transitions, 15420 flow, removed 43 selfloop flow, removed 6 redundant places. [2024-12-02 14:34:59,759 INFO L231 Difference]: Finished difference. Result has 392 places, 1145 transitions, 9013 flow [2024-12-02 14:34:59,760 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=6826, PETRI_DIFFERENCE_MINUEND_PLACES=357, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1001, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=849, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=9013, PETRI_PLACES=392, PETRI_TRANSITIONS=1145} [2024-12-02 14:34:59,760 INFO L279 CegarLoopForPetriNet]: 274 programPoint places, 118 predicate places. [2024-12-02 14:34:59,760 INFO L471 AbstractCegarLoop]: Abstraction has has 392 places, 1145 transitions, 9013 flow [2024-12-02 14:34:59,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 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) [2024-12-02 14:34:59,761 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:34:59,761 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:34:59,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 14:34:59,762 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-12-02 14:34:59,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:34:59,763 INFO L85 PathProgramCache]: Analyzing trace with hash 2127013216, now seen corresponding path program 3 times [2024-12-02 14:34:59,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:34:59,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500154138] [2024-12-02 14:34:59,763 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 14:34:59,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:34:59,796 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-02 14:34:59,796 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 14:35:00,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:35:00,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:35:00,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500154138] [2024-12-02 14:35:00,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500154138] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:35:00,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:35:00,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 14:35:00,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162999009] [2024-12-02 14:35:00,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:35:00,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 14:35:00,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:35:00,504 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 14:35:00,504 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:35:02,519 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-12-02 14:35:02,521 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 1145 transitions, 9013 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 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) [2024-12-02 14:35:02,521 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:35:02,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-12-02 14:35:02,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:35:07,469 INFO L124 PetriNetUnfolderBase]: 5132/15682 cut-off events. [2024-12-02 14:35:07,469 INFO L125 PetriNetUnfolderBase]: For 34423/34710 co-relation queries the response was YES. [2024-12-02 14:35:07,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55029 conditions, 15682 events. 5132/15682 cut-off events. For 34423/34710 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 135615 event pairs, 941 based on Foata normal form. 77/15030 useless extension candidates. Maximal degree in co-relation 54846. Up to 5166 conditions per place. [2024-12-02 14:35:07,590 INFO L140 encePairwiseOnDemand]: 216/273 looper letters, 974 selfloop transitions, 345 changer transitions 0/1538 dead transitions. [2024-12-02 14:35:07,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 1538 transitions, 14837 flow [2024-12-02 14:35:07,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 14:35:07,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-12-02 14:35:07,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3190 transitions. [2024-12-02 14:35:07,595 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6873518638224521 [2024-12-02 14:35:07,596 INFO L175 Difference]: Start difference. First operand has 392 places, 1145 transitions, 9013 flow. Second operand 17 states and 3190 transitions. [2024-12-02 14:35:07,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 1538 transitions, 14837 flow [2024-12-02 14:35:07,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 1538 transitions, 14578 flow, removed 97 selfloop flow, removed 2 redundant places. [2024-12-02 14:35:07,840 INFO L231 Difference]: Finished difference. Result has 417 places, 1219 transitions, 11185 flow [2024-12-02 14:35:07,841 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=8862, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=275, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=830, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=11185, PETRI_PLACES=417, PETRI_TRANSITIONS=1219} [2024-12-02 14:35:07,841 INFO L279 CegarLoopForPetriNet]: 274 programPoint places, 143 predicate places. [2024-12-02 14:35:07,841 INFO L471 AbstractCegarLoop]: Abstraction has has 417 places, 1219 transitions, 11185 flow [2024-12-02 14:35:07,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 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) [2024-12-02 14:35:07,842 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:35:07,842 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:35:07,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 14:35:07,842 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-12-02 14:35:07,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:35:07,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1823839556, now seen corresponding path program 4 times [2024-12-02 14:35:07,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:35:07,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484525266] [2024-12-02 14:35:07,843 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 14:35:07,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:35:07,867 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 14:35:07,867 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 14:35:08,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:35:08,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:35:08,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484525266] [2024-12-02 14:35:08,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484525266] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:35:08,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:35:08,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 14:35:08,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614108461] [2024-12-02 14:35:08,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:35:08,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 14:35:08,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:35:08,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 14:35:08,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:35:10,735 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-12-02 14:35:10,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 1219 transitions, 11185 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 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) [2024-12-02 14:35:10,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:35:10,737 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-12-02 14:35:10,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:35:16,677 INFO L124 PetriNetUnfolderBase]: 6077/18481 cut-off events. [2024-12-02 14:35:16,677 INFO L125 PetriNetUnfolderBase]: For 53341/53803 co-relation queries the response was YES. [2024-12-02 14:35:16,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68843 conditions, 18481 events. 6077/18481 cut-off events. For 53341/53803 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 165251 event pairs, 917 based on Foata normal form. 64/17739 useless extension candidates. Maximal degree in co-relation 68648. Up to 3546 conditions per place. [2024-12-02 14:35:16,838 INFO L140 encePairwiseOnDemand]: 215/273 looper letters, 1397 selfloop transitions, 259 changer transitions 0/1875 dead transitions. [2024-12-02 14:35:16,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 1875 transitions, 20317 flow [2024-12-02 14:35:16,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 14:35:16,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-12-02 14:35:16,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3763 transitions. [2024-12-02 14:35:16,841 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.656375370661085 [2024-12-02 14:35:16,841 INFO L175 Difference]: Start difference. First operand has 417 places, 1219 transitions, 11185 flow. Second operand 21 states and 3763 transitions. [2024-12-02 14:35:16,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 1875 transitions, 20317 flow [2024-12-02 14:35:17,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 1875 transitions, 19986 flow, removed 113 selfloop flow, removed 6 redundant places. [2024-12-02 14:35:17,239 INFO L231 Difference]: Finished difference. Result has 445 places, 1314 transitions, 13378 flow [2024-12-02 14:35:17,240 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=10976, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=165, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=976, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=13378, PETRI_PLACES=445, PETRI_TRANSITIONS=1314} [2024-12-02 14:35:17,240 INFO L279 CegarLoopForPetriNet]: 274 programPoint places, 171 predicate places. [2024-12-02 14:35:17,240 INFO L471 AbstractCegarLoop]: Abstraction has has 445 places, 1314 transitions, 13378 flow [2024-12-02 14:35:17,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 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) [2024-12-02 14:35:17,241 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:35:17,241 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:35:17,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 14:35:17,241 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-12-02 14:35:17,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:35:17,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1466590318, now seen corresponding path program 1 times [2024-12-02 14:35:17,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:35:17,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880140070] [2024-12-02 14:35:17,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:35:17,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:35:17,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:35:17,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:35:17,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:35:17,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880140070] [2024-12-02 14:35:17,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880140070] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:35:17,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639716949] [2024-12-02 14:35:17,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:35:17,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:35:17,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:35:17,690 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:35:17,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 14:35:17,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:35:17,824 INFO L256 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-12-02 14:35:17,830 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:35:17,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-12-02 14:35:17,926 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-12-02 14:35:17,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-12-02 14:35:17,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 14:35:17,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-12-02 14:35:17,983 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 14:35:17,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-12-02 14:35:18,006 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 14:35:18,006 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-12-02 14:35:18,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 32 [2024-12-02 14:35:18,051 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:35:18,051 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:35:18,083 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_755 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_755) |c_ULTIMATE.start_init_~p#1.base|) (+ |c_ULTIMATE.start_init_~p#1.offset| 1)) |c_ULTIMATE.start_init_#t~nondet30#1|)) (forall ((v_ArrVal_755 (Array Int Int))) (= |c_ULTIMATE.start_init_#t~nondet30#1| (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_755) |c_ULTIMATE.start_init_~p#1.base|) |c_ULTIMATE.start_init_~p#1.offset|))) (forall ((v_ArrVal_755 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_755) |c_ULTIMATE.start_init_~p#1.base|) (+ 3 |c_ULTIMATE.start_init_~p#1.offset|)) |c_ULTIMATE.start_init_#t~nondet30#1|)) (forall ((v_ArrVal_755 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_755) |c_ULTIMATE.start_init_~p#1.base|) (+ 2 |c_ULTIMATE.start_init_~p#1.offset|)) |c_ULTIMATE.start_init_#t~nondet30#1|))) is different from false [2024-12-02 14:35:18,108 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ 3 |c_ULTIMATE.start_init_~p#1.offset|))) (let ((.cse0 (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| (store (select |c_#race| |c_ULTIMATE.start_init_~p#1.base|) .cse1 |c_ULTIMATE.start_init_#t~nondet30#1|)))) (and (forall ((v_ArrVal_755 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_755) |c_ULTIMATE.start_init_~p#1.base|) (+ 2 |c_ULTIMATE.start_init_~p#1.offset|)) |c_ULTIMATE.start_init_#t~nondet30#1|)) (forall ((v_ArrVal_755 (Array Int Int))) (= |c_ULTIMATE.start_init_#t~nondet30#1| (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_755) |c_ULTIMATE.start_init_~p#1.base|) |c_ULTIMATE.start_init_~p#1.offset|))) (forall ((v_ArrVal_755 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_755) |c_ULTIMATE.start_init_~p#1.base|) .cse1) |c_ULTIMATE.start_init_#t~nondet30#1|)) (forall ((v_ArrVal_755 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_755) |c_ULTIMATE.start_init_~p#1.base|) (+ |c_ULTIMATE.start_init_~p#1.offset| 1)) |c_ULTIMATE.start_init_#t~nondet30#1|))))) is different from false [2024-12-02 14:35:18,133 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ 2 |c_ULTIMATE.start_init_~p#1.offset|)) (.cse1 (+ 3 |c_ULTIMATE.start_init_~p#1.offset|))) (let ((.cse0 (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| (store (store (select |c_#race| |c_ULTIMATE.start_init_~p#1.base|) .cse2 |c_ULTIMATE.start_init_#t~nondet30#1|) .cse1 |c_ULTIMATE.start_init_#t~nondet30#1|)))) (and (forall ((v_ArrVal_755 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_755) |c_ULTIMATE.start_init_~p#1.base|) .cse1) |c_ULTIMATE.start_init_#t~nondet30#1|)) (forall ((v_ArrVal_755 (Array Int Int))) (= |c_ULTIMATE.start_init_#t~nondet30#1| (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_755) |c_ULTIMATE.start_init_~p#1.base|) (+ |c_ULTIMATE.start_init_~p#1.offset| 1)))) (forall ((v_ArrVal_755 (Array Int Int))) (= |c_ULTIMATE.start_init_#t~nondet30#1| (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_755) |c_ULTIMATE.start_init_~p#1.base|) |c_ULTIMATE.start_init_~p#1.offset|))) (forall ((v_ArrVal_755 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_755) |c_ULTIMATE.start_init_~p#1.base|) .cse2) |c_ULTIMATE.start_init_#t~nondet30#1|))))) is different from false [2024-12-02 14:35:25,048 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:35:25,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639716949] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:35:25,049 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:35:25,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 21 [2024-12-02 14:35:25,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375653702] [2024-12-02 14:35:25,049 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:35:25,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 14:35:25,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:35:25,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 14:35:25,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=295, Unknown=3, NotChecked=108, Total=462 [2024-12-02 14:35:25,305 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 273 [2024-12-02 14:35:25,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 1314 transitions, 13378 flow. Second operand has 22 states, 22 states have (on average 98.18181818181819) internal successors, (2160), 22 states have internal predecessors, (2160), 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) [2024-12-02 14:35:25,306 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:35:25,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 273 [2024-12-02 14:35:25,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:35:36,696 INFO L124 PetriNetUnfolderBase]: 12412/30989 cut-off events. [2024-12-02 14:35:36,696 INFO L125 PetriNetUnfolderBase]: For 121629/121661 co-relation queries the response was YES. [2024-12-02 14:35:36,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123200 conditions, 30989 events. 12412/30989 cut-off events. For 121629/121661 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 270851 event pairs, 2848 based on Foata normal form. 45/29333 useless extension candidates. Maximal degree in co-relation 122979. Up to 12981 conditions per place. [2024-12-02 14:35:37,033 INFO L140 encePairwiseOnDemand]: 221/273 looper letters, 2039 selfloop transitions, 254 changer transitions 0/2427 dead transitions. [2024-12-02 14:35:37,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 2427 transitions, 28417 flow [2024-12-02 14:35:37,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 14:35:37,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-12-02 14:35:37,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2888 transitions. [2024-12-02 14:35:37,038 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48085248085248083 [2024-12-02 14:35:37,038 INFO L175 Difference]: Start difference. First operand has 445 places, 1314 transitions, 13378 flow. Second operand 22 states and 2888 transitions. [2024-12-02 14:35:37,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 2427 transitions, 28417 flow [2024-12-02 14:35:37,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 2427 transitions, 27927 flow, removed 173 selfloop flow, removed 6 redundant places. [2024-12-02 14:35:37,955 INFO L231 Difference]: Finished difference. Result has 475 places, 1470 transitions, 15768 flow [2024-12-02 14:35:37,956 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=13004, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=15768, PETRI_PLACES=475, PETRI_TRANSITIONS=1470} [2024-12-02 14:35:37,956 INFO L279 CegarLoopForPetriNet]: 274 programPoint places, 201 predicate places. [2024-12-02 14:35:37,956 INFO L471 AbstractCegarLoop]: Abstraction has has 475 places, 1470 transitions, 15768 flow [2024-12-02 14:35:37,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 98.18181818181819) internal successors, (2160), 22 states have internal predecessors, (2160), 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) [2024-12-02 14:35:37,957 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:35:37,957 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:35:37,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 14:35:38,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:35:38,157 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-12-02 14:35:38,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:35:38,158 INFO L85 PathProgramCache]: Analyzing trace with hash 366988368, now seen corresponding path program 5 times [2024-12-02 14:35:38,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:35:38,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732031549] [2024-12-02 14:35:38,158 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 14:35:38,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:35:38,175 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 14:35:38,175 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 14:35:38,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:35:38,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:35:38,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732031549] [2024-12-02 14:35:38,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732031549] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:35:38,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579758797] [2024-12-02 14:35:38,503 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 14:35:38,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:35:38,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:35:38,505 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:35:38,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 14:35:38,745 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 14:35:38,745 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 14:35:38,747 INFO L256 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-12-02 14:35:38,751 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:35:38,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-12-02 14:35:38,767 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-12-02 14:35:38,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-12-02 14:35:38,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 14:35:38,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-12-02 14:35:38,814 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 14:35:38,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-12-02 14:35:38,831 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 14:35:38,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-12-02 14:35:38,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 32 [2024-12-02 14:35:38,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:35:38,859 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:35:38,881 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_920 (Array Int Int))) (= |c_t_funThread1of1ForFork0_init_#t~nondet30#1| (select (select (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_920) |c_t_funThread1of1ForFork0_init_~p#1.base|) (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 1)))) (forall ((v_ArrVal_920 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_920) |c_t_funThread1of1ForFork0_init_~p#1.base|) |c_t_funThread1of1ForFork0_init_~p#1.offset|) |c_t_funThread1of1ForFork0_init_#t~nondet30#1|)) (forall ((v_ArrVal_920 (Array Int Int))) (= |c_t_funThread1of1ForFork0_init_#t~nondet30#1| (select (select (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_920) |c_t_funThread1of1ForFork0_init_~p#1.base|) (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 2)))) (forall ((v_ArrVal_920 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_920) |c_t_funThread1of1ForFork0_init_~p#1.base|) (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 3)) |c_t_funThread1of1ForFork0_init_#t~nondet30#1|))) is different from false [2024-12-02 14:35:38,899 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 3))) (let ((.cse0 (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| (store (select |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base|) .cse1 |c_t_funThread1of1ForFork0_init_#t~nondet30#1|)))) (and (forall ((v_ArrVal_920 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_920) |c_t_funThread1of1ForFork0_init_~p#1.base|) .cse1) |c_t_funThread1of1ForFork0_init_#t~nondet30#1|)) (forall ((v_ArrVal_920 (Array Int Int))) (= |c_t_funThread1of1ForFork0_init_#t~nondet30#1| (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_920) |c_t_funThread1of1ForFork0_init_~p#1.base|) (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 1)))) (forall ((v_ArrVal_920 (Array Int Int))) (= |c_t_funThread1of1ForFork0_init_#t~nondet30#1| (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_920) |c_t_funThread1of1ForFork0_init_~p#1.base|) (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 2)))) (forall ((v_ArrVal_920 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_920) |c_t_funThread1of1ForFork0_init_~p#1.base|) |c_t_funThread1of1ForFork0_init_~p#1.offset|) |c_t_funThread1of1ForFork0_init_#t~nondet30#1|))))) is different from false [2024-12-02 14:35:45,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:35:45,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1579758797] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:35:45,639 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:35:45,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 19 [2024-12-02 14:35:45,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294860443] [2024-12-02 14:35:45,639 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:35:45,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 14:35:45,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:35:45,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 14:35:45,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=249, Unknown=12, NotChecked=66, Total=380 [2024-12-02 14:35:45,915 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 273 [2024-12-02 14:35:45,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 475 places, 1470 transitions, 15768 flow. Second operand has 20 states, 20 states have (on average 100.2) internal successors, (2004), 20 states have internal predecessors, (2004), 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) [2024-12-02 14:35:45,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:35:45,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 273 [2024-12-02 14:35:45,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:36:00,612 INFO L124 PetriNetUnfolderBase]: 14038/35207 cut-off events. [2024-12-02 14:36:00,612 INFO L125 PetriNetUnfolderBase]: For 162781/162823 co-relation queries the response was YES. [2024-12-02 14:36:00,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148169 conditions, 35207 events. 14038/35207 cut-off events. For 162781/162823 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 316660 event pairs, 3583 based on Foata normal form. 45/33403 useless extension candidates. Maximal degree in co-relation 147995. Up to 17263 conditions per place. [2024-12-02 14:36:01,190 INFO L140 encePairwiseOnDemand]: 215/273 looper letters, 1979 selfloop transitions, 298 changer transitions 0/2385 dead transitions. [2024-12-02 14:36:01,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 495 places, 2385 transitions, 28283 flow [2024-12-02 14:36:01,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 14:36:01,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-12-02 14:36:01,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2713 transitions. [2024-12-02 14:36:01,192 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4732251875109018 [2024-12-02 14:36:01,192 INFO L175 Difference]: Start difference. First operand has 475 places, 1470 transitions, 15768 flow. Second operand 21 states and 2713 transitions. [2024-12-02 14:36:01,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 495 places, 2385 transitions, 28283 flow [2024-12-02 14:36:02,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 493 places, 2385 transitions, 28157 flow, removed 36 selfloop flow, removed 2 redundant places. [2024-12-02 14:36:02,507 INFO L231 Difference]: Finished difference. Result has 506 places, 1581 transitions, 18797 flow [2024-12-02 14:36:02,508 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=15711, PETRI_DIFFERENCE_MINUEND_PLACES=473, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=193, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=18797, PETRI_PLACES=506, PETRI_TRANSITIONS=1581} [2024-12-02 14:36:02,509 INFO L279 CegarLoopForPetriNet]: 274 programPoint places, 232 predicate places. [2024-12-02 14:36:02,509 INFO L471 AbstractCegarLoop]: Abstraction has has 506 places, 1581 transitions, 18797 flow [2024-12-02 14:36:02,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 100.2) internal successors, (2004), 20 states have internal predecessors, (2004), 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) [2024-12-02 14:36:02,509 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:36:02,509 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:36:02,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 14:36:02,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:36:02,710 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-12-02 14:36:02,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:36:02,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1532688078, now seen corresponding path program 2 times [2024-12-02 14:36:02,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:36:02,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095308958] [2024-12-02 14:36:02,711 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 14:36:02,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:36:02,742 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 14:36:02,742 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 14:36:03,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:36:03,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:36:03,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095308958] [2024-12-02 14:36:03,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095308958] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:36:03,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922162346] [2024-12-02 14:36:03,100 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 14:36:03,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:36:03,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:36:03,101 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:36:03,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 14:36:03,720 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 14:36:03,720 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 14:36:03,723 INFO L256 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-12-02 14:36:03,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:36:03,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-12-02 14:36:03,748 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-12-02 14:36:03,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-12-02 14:36:03,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 14:36:03,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-12-02 14:36:03,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2024-12-02 14:36:04,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2024-12-02 14:36:04,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2024-12-02 14:36:04,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:36:04,109 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:36:04,129 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1085 (Array Int Int))) (= |c_ULTIMATE.start_init_#t~nondet30#1| (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1085) |c_ULTIMATE.start_init_~p#1.base|) |c_ULTIMATE.start_init_~p#1.offset|))) (forall ((v_ArrVal_1085 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1085) |c_ULTIMATE.start_init_~p#1.base|) (+ |c_ULTIMATE.start_init_~p#1.offset| 1)) |c_ULTIMATE.start_init_#t~nondet30#1|)) (forall ((v_ArrVal_1085 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1085) |c_ULTIMATE.start_init_~p#1.base|) (+ 2 |c_ULTIMATE.start_init_~p#1.offset|)) |c_ULTIMATE.start_init_#t~nondet30#1|)) (forall ((v_ArrVal_1085 (Array Int Int))) (= |c_ULTIMATE.start_init_#t~nondet30#1| (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1085) |c_ULTIMATE.start_init_~p#1.base|) (+ 3 |c_ULTIMATE.start_init_~p#1.offset|))))) is different from false [2024-12-02 14:36:04,146 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ 3 |c_ULTIMATE.start_init_~p#1.offset|))) (let ((.cse0 (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| (store (select |c_#race| |c_ULTIMATE.start_init_~p#1.base|) .cse1 |c_ULTIMATE.start_init_#t~nondet30#1|)))) (and (forall ((v_ArrVal_1085 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1085) |c_ULTIMATE.start_init_~p#1.base|) |c_ULTIMATE.start_init_~p#1.offset|) |c_ULTIMATE.start_init_#t~nondet30#1|)) (forall ((v_ArrVal_1085 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1085) |c_ULTIMATE.start_init_~p#1.base|) (+ |c_ULTIMATE.start_init_~p#1.offset| 1)) |c_ULTIMATE.start_init_#t~nondet30#1|)) (forall ((v_ArrVal_1085 (Array Int Int))) (= |c_ULTIMATE.start_init_#t~nondet30#1| (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1085) |c_ULTIMATE.start_init_~p#1.base|) .cse1))) (forall ((v_ArrVal_1085 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1085) |c_ULTIMATE.start_init_~p#1.base|) (+ 2 |c_ULTIMATE.start_init_~p#1.offset|)) |c_ULTIMATE.start_init_#t~nondet30#1|))))) is different from false [2024-12-02 14:36:04,163 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ 2 |c_ULTIMATE.start_init_~p#1.offset|)) (.cse2 (+ 3 |c_ULTIMATE.start_init_~p#1.offset|))) (let ((.cse0 (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| (store (store (select |c_#race| |c_ULTIMATE.start_init_~p#1.base|) .cse1 |c_ULTIMATE.start_init_#t~nondet30#1|) .cse2 |c_ULTIMATE.start_init_#t~nondet30#1|)))) (and (forall ((v_ArrVal_1085 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1085) |c_ULTIMATE.start_init_~p#1.base|) (+ |c_ULTIMATE.start_init_~p#1.offset| 1)) |c_ULTIMATE.start_init_#t~nondet30#1|)) (forall ((v_ArrVal_1085 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1085) |c_ULTIMATE.start_init_~p#1.base|) .cse1) |c_ULTIMATE.start_init_#t~nondet30#1|)) (forall ((v_ArrVal_1085 (Array Int Int))) (= |c_ULTIMATE.start_init_#t~nondet30#1| (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1085) |c_ULTIMATE.start_init_~p#1.base|) |c_ULTIMATE.start_init_~p#1.offset|))) (forall ((v_ArrVal_1085 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1085) |c_ULTIMATE.start_init_~p#1.base|) .cse2) |c_ULTIMATE.start_init_#t~nondet30#1|))))) is different from false [2024-12-02 14:36:11,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:36:11,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922162346] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:36:11,077 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:36:11,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 16, 14] total 32 [2024-12-02 14:36:11,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646094875] [2024-12-02 14:36:11,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:36:11,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-12-02 14:36:11,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:36:11,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-12-02 14:36:11,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=766, Unknown=3, NotChecked=174, Total=1056 [2024-12-02 14:36:11,278 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 273 [2024-12-02 14:36:11,280 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 506 places, 1581 transitions, 18797 flow. Second operand has 33 states, 33 states have (on average 95.63636363636364) internal successors, (3156), 33 states have internal predecessors, (3156), 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) [2024-12-02 14:36:11,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:36:11,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 273 [2024-12-02 14:36:11,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:36:30,278 INFO L124 PetriNetUnfolderBase]: 15899/39648 cut-off events. [2024-12-02 14:36:30,278 INFO L125 PetriNetUnfolderBase]: For 222511/222593 co-relation queries the response was YES. [2024-12-02 14:36:30,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175495 conditions, 39648 events. 15899/39648 cut-off events. For 222511/222593 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 363362 event pairs, 2429 based on Foata normal form. 75/37827 useless extension candidates. Maximal degree in co-relation 175297. Up to 15350 conditions per place. [2024-12-02 14:36:30,759 INFO L140 encePairwiseOnDemand]: 220/273 looper letters, 2213 selfloop transitions, 256 changer transitions 0/2604 dead transitions. [2024-12-02 14:36:30,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 529 places, 2604 transitions, 34640 flow [2024-12-02 14:36:30,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-02 14:36:30,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-12-02 14:36:30,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2997 transitions. [2024-12-02 14:36:30,762 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4574175824175824 [2024-12-02 14:36:30,762 INFO L175 Difference]: Start difference. First operand has 506 places, 1581 transitions, 18797 flow. Second operand 24 states and 2997 transitions. [2024-12-02 14:36:30,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 529 places, 2604 transitions, 34640 flow [2024-12-02 14:36:33,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 523 places, 2604 transitions, 33963 flow, removed 257 selfloop flow, removed 6 redundant places. [2024-12-02 14:36:33,264 INFO L231 Difference]: Finished difference. Result has 539 places, 1707 transitions, 21144 flow [2024-12-02 14:36:33,265 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=18207, PETRI_DIFFERENCE_MINUEND_PLACES=500, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1581, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=21144, PETRI_PLACES=539, PETRI_TRANSITIONS=1707} [2024-12-02 14:36:33,265 INFO L279 CegarLoopForPetriNet]: 274 programPoint places, 265 predicate places. [2024-12-02 14:36:33,265 INFO L471 AbstractCegarLoop]: Abstraction has has 539 places, 1707 transitions, 21144 flow [2024-12-02 14:36:33,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 95.63636363636364) internal successors, (3156), 33 states have internal predecessors, (3156), 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) [2024-12-02 14:36:33,266 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:36:33,266 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:36:33,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 14:36:33,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:36:33,467 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-12-02 14:36:33,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:36:33,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1966453232, now seen corresponding path program 6 times [2024-12-02 14:36:33,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:36:33,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418096093] [2024-12-02 14:36:33,468 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 14:36:33,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:36:33,491 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-12-02 14:36:33,491 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 14:36:33,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:36:33,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:36:33,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418096093] [2024-12-02 14:36:33,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418096093] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:36:33,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364140779] [2024-12-02 14:36:33,831 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 14:36:33,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:36:33,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:36:33,832 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:36:33,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 14:36:34,592 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-12-02 14:36:34,593 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 14:36:34,595 INFO L256 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-12-02 14:36:34,599 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:36:34,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-12-02 14:36:34,644 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-12-02 14:36:34,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-12-02 14:36:34,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 14:36:34,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-12-02 14:36:34,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2024-12-02 14:36:35,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2024-12-02 14:36:35,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 41 [2024-12-02 14:36:35,126 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:36:35,126 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:36:36,461 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:36:36,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364140779] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:36:36,461 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:36:36,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 39 [2024-12-02 14:36:36,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883396361] [2024-12-02 14:36:36,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:36:36,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-12-02 14:36:36,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:36:36,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-12-02 14:36:36,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=1382, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 14:36:52,558 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-12-02 14:36:52,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 539 places, 1707 transitions, 21144 flow. Second operand has 40 states, 40 states have (on average 159.0) internal successors, (6360), 40 states have internal predecessors, (6360), 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) [2024-12-02 14:36:52,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:36:52,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-12-02 14:36:52,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:37:07,648 INFO L124 PetriNetUnfolderBase]: 10264/29923 cut-off events. [2024-12-02 14:37:07,649 INFO L125 PetriNetUnfolderBase]: For 194003/195121 co-relation queries the response was YES. [2024-12-02 14:37:07,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141650 conditions, 29923 events. 10264/29923 cut-off events. For 194003/195121 co-relation queries the response was YES. Maximal size of possible extension queue 353. Compared 291396 event pairs, 2419 based on Foata normal form. 189/28921 useless extension candidates. Maximal degree in co-relation 141430. Up to 14971 conditions per place. [2024-12-02 14:37:08,056 INFO L140 encePairwiseOnDemand]: 215/273 looper letters, 1686 selfloop transitions, 315 changer transitions 0/2273 dead transitions. [2024-12-02 14:37:08,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 557 places, 2273 transitions, 31471 flow [2024-12-02 14:37:08,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 14:37:08,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-12-02 14:37:08,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3351 transitions. [2024-12-02 14:37:08,059 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6460381723539619 [2024-12-02 14:37:08,059 INFO L175 Difference]: Start difference. First operand has 539 places, 1707 transitions, 21144 flow. Second operand 19 states and 3351 transitions. [2024-12-02 14:37:08,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 557 places, 2273 transitions, 31471 flow [2024-12-02 14:37:10,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 551 places, 2273 transitions, 31194 flow, removed 95 selfloop flow, removed 6 redundant places. [2024-12-02 14:37:10,678 INFO L231 Difference]: Finished difference. Result has 567 places, 1819 transitions, 24532 flow [2024-12-02 14:37:10,679 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=20891, PETRI_DIFFERENCE_MINUEND_PLACES=533, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1707, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=207, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=24532, PETRI_PLACES=567, PETRI_TRANSITIONS=1819} [2024-12-02 14:37:10,680 INFO L279 CegarLoopForPetriNet]: 274 programPoint places, 293 predicate places. [2024-12-02 14:37:10,680 INFO L471 AbstractCegarLoop]: Abstraction has has 567 places, 1819 transitions, 24532 flow [2024-12-02 14:37:10,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 159.0) internal successors, (6360), 40 states have internal predecessors, (6360), 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) [2024-12-02 14:37:10,682 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:37:10,682 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:37:10,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 14:37:10,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:37:10,882 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-12-02 14:37:10,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:37:10,883 INFO L85 PathProgramCache]: Analyzing trace with hash -880790002, now seen corresponding path program 7 times [2024-12-02 14:37:10,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:37:10,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414276769] [2024-12-02 14:37:10,883 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 14:37:10,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:37:10,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:37:11,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:37:11,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:37:11,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414276769] [2024-12-02 14:37:11,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414276769] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:37:11,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518441139] [2024-12-02 14:37:11,392 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 14:37:11,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:37:11,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:37:11,394 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:37:11,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 14:37:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:37:11,548 INFO L256 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-12-02 14:37:11,551 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:37:11,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-12-02 14:37:11,568 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-12-02 14:37:11,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-12-02 14:37:11,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 14:37:11,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-12-02 14:37:11,607 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 14:37:11,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-12-02 14:37:11,620 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 14:37:11,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-12-02 14:37:11,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 32 [2024-12-02 14:37:11,674 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:37:11,674 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:37:14,908 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 3))) (let ((.cse0 (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| (store (select |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base|) .cse1 |c_t_funThread1of1ForFork0_init_#t~nondet30#1|)))) (and (forall ((v_ArrVal_1415 (Array Int Int))) (= |c_t_funThread1of1ForFork0_init_#t~nondet30#1| (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_1415) |c_t_funThread1of1ForFork0_init_~p#1.base|) (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 2)))) (forall ((v_ArrVal_1415 (Array Int Int))) (= |c_t_funThread1of1ForFork0_init_#t~nondet30#1| (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_1415) |c_t_funThread1of1ForFork0_init_~p#1.base|) .cse1))) (forall ((v_ArrVal_1415 (Array Int Int))) (= |c_t_funThread1of1ForFork0_init_#t~nondet30#1| (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_1415) |c_t_funThread1of1ForFork0_init_~p#1.base|) |c_t_funThread1of1ForFork0_init_~p#1.offset|))) (forall ((v_ArrVal_1415 (Array Int Int))) (= |c_t_funThread1of1ForFork0_init_#t~nondet30#1| (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_1415) |c_t_funThread1of1ForFork0_init_~p#1.base|) (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 1))))))) is different from false [2024-12-02 14:37:21,633 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 14:37:21,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 49 [2024-12-02 14:37:21,639 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 14:37:21,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 80 treesize of output 30 [2024-12-02 14:37:21,648 INFO L349 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2024-12-02 14:37:21,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 1 [2024-12-02 14:37:21,654 INFO L349 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2024-12-02 14:37:21,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 1 [2024-12-02 14:37:21,659 INFO L349 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2024-12-02 14:37:21,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 1 [2024-12-02 14:37:21,723 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:37:21,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518441139] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:37:21,723 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:37:21,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 20 [2024-12-02 14:37:21,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759125647] [2024-12-02 14:37:21,723 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:37:21,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 14:37:21,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:37:21,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 14:37:21,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=291, Unknown=33, NotChecked=36, Total=420 [2024-12-02 14:37:21,973 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 273 [2024-12-02 14:37:21,975 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 567 places, 1819 transitions, 24532 flow. Second operand has 21 states, 21 states have (on average 100.14285714285714) internal successors, (2103), 21 states have internal predecessors, (2103), 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) [2024-12-02 14:37:21,975 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:37:21,975 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 273 [2024-12-02 14:37:21,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:37:58,309 INFO L124 PetriNetUnfolderBase]: 25021/61890 cut-off events. [2024-12-02 14:37:58,309 INFO L125 PetriNetUnfolderBase]: For 538277/538355 co-relation queries the response was YES. [2024-12-02 14:37:59,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 312080 conditions, 61890 events. 25021/61890 cut-off events. For 538277/538355 co-relation queries the response was YES. Maximal size of possible extension queue 639. Compared 620020 event pairs, 4813 based on Foata normal form. 73/59291 useless extension candidates. Maximal degree in co-relation 311835. Up to 26682 conditions per place. [2024-12-02 14:37:59,352 INFO L140 encePairwiseOnDemand]: 215/273 looper letters, 3697 selfloop transitions, 534 changer transitions 0/4347 dead transitions. [2024-12-02 14:37:59,352 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 594 places, 4347 transitions, 63478 flow [2024-12-02 14:37:59,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-12-02 14:37:59,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2024-12-02 14:37:59,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3849 transitions. [2024-12-02 14:37:59,356 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5035321821036107 [2024-12-02 14:37:59,356 INFO L175 Difference]: Start difference. First operand has 567 places, 1819 transitions, 24532 flow. Second operand 28 states and 3849 transitions. [2024-12-02 14:37:59,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 594 places, 4347 transitions, 63478 flow [2024-12-02 14:38:07,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 593 places, 4347 transitions, 62741 flow, removed 353 selfloop flow, removed 1 redundant places. [2024-12-02 14:38:07,918 INFO L231 Difference]: Finished difference. Result has 614 places, 2074 transitions, 32656 flow [2024-12-02 14:38:07,919 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=23869, PETRI_DIFFERENCE_MINUEND_PLACES=566, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1819, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=301, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1445, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=32656, PETRI_PLACES=614, PETRI_TRANSITIONS=2074} [2024-12-02 14:38:07,919 INFO L279 CegarLoopForPetriNet]: 274 programPoint places, 340 predicate places. [2024-12-02 14:38:07,919 INFO L471 AbstractCegarLoop]: Abstraction has has 614 places, 2074 transitions, 32656 flow [2024-12-02 14:38:07,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 100.14285714285714) internal successors, (2103), 21 states have internal predecessors, (2103), 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) [2024-12-02 14:38:07,920 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:38:07,920 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:38:07,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 14:38:08,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:38:08,121 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-12-02 14:38:08,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:38:08,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1271008158, now seen corresponding path program 8 times [2024-12-02 14:38:08,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:38:08,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491311576] [2024-12-02 14:38:08,122 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 14:38:08,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:38:08,146 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 14:38:08,146 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 14:38:08,543 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:38:08,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:38:08,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491311576] [2024-12-02 14:38:08,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491311576] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:38:08,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248747366] [2024-12-02 14:38:08,543 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 14:38:08,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:38:08,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:38:08,545 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:38:08,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 14:38:09,299 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 14:38:09,299 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 14:38:09,301 INFO L256 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-12-02 14:38:09,305 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:38:09,310 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-12-02 14:38:09,320 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-12-02 14:38:09,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-12-02 14:38:09,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 14:38:09,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-12-02 14:38:09,362 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 14:38:09,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-12-02 14:38:09,379 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 14:38:09,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-12-02 14:38:09,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 32 [2024-12-02 14:38:09,416 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:38:09,417 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:38:09,436 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1580 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_1580) |c_t_funThread1of1ForFork0_init_~p#1.base|) |c_t_funThread1of1ForFork0_init_~p#1.offset|) |c_t_funThread1of1ForFork0_init_#t~nondet30#1|)) (forall ((v_ArrVal_1580 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_1580) |c_t_funThread1of1ForFork0_init_~p#1.base|) (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 2)) |c_t_funThread1of1ForFork0_init_#t~nondet30#1|)) (forall ((v_ArrVal_1580 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_1580) |c_t_funThread1of1ForFork0_init_~p#1.base|) (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 1)) |c_t_funThread1of1ForFork0_init_#t~nondet30#1|)) (forall ((v_ArrVal_1580 (Array Int Int))) (= |c_t_funThread1of1ForFork0_init_#t~nondet30#1| (select (select (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_1580) |c_t_funThread1of1ForFork0_init_~p#1.base|) (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 3))))) is different from false [2024-12-02 14:38:09,461 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 3))) (let ((.cse0 (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| (store (select |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base|) .cse1 |c_t_funThread1of1ForFork0_init_#t~nondet30#1|)))) (and (forall ((v_ArrVal_1580 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_1580) |c_t_funThread1of1ForFork0_init_~p#1.base|) (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 1)) |c_t_funThread1of1ForFork0_init_#t~nondet30#1|)) (forall ((v_ArrVal_1580 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_1580) |c_t_funThread1of1ForFork0_init_~p#1.base|) (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 2)) |c_t_funThread1of1ForFork0_init_#t~nondet30#1|)) (forall ((v_ArrVal_1580 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_1580) |c_t_funThread1of1ForFork0_init_~p#1.base|) |c_t_funThread1of1ForFork0_init_~p#1.offset|) |c_t_funThread1of1ForFork0_init_#t~nondet30#1|)) (forall ((v_ArrVal_1580 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_1580) |c_t_funThread1of1ForFork0_init_~p#1.base|) .cse1) |c_t_funThread1of1ForFork0_init_#t~nondet30#1|))))) is different from false [2024-12-02 14:38:12,543 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 1)) (.cse2 (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 2)) (.cse3 (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 3))) (let ((.cse0 (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| (store (store (store (select |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base|) .cse1 |c_t_funThread1of1ForFork0_init_#t~nondet30#1|) .cse2 |c_t_funThread1of1ForFork0_init_#t~nondet30#1|) .cse3 |c_t_funThread1of1ForFork0_init_#t~nondet30#1|)))) (and (forall ((v_ArrVal_1580 (Array Int Int))) (= |c_t_funThread1of1ForFork0_init_#t~nondet30#1| (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_1580) |c_t_funThread1of1ForFork0_init_~p#1.base|) .cse1))) (forall ((v_ArrVal_1580 (Array Int Int))) (= |c_t_funThread1of1ForFork0_init_#t~nondet30#1| (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_1580) |c_t_funThread1of1ForFork0_init_~p#1.base|) .cse2))) (forall ((v_ArrVal_1580 (Array Int Int))) (= |c_t_funThread1of1ForFork0_init_#t~nondet30#1| (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_1580) |c_t_funThread1of1ForFork0_init_~p#1.base|) .cse3))) (forall ((v_ArrVal_1580 (Array Int Int))) (= |c_t_funThread1of1ForFork0_init_#t~nondet30#1| (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_1580) |c_t_funThread1of1ForFork0_init_~p#1.base|) |c_t_funThread1of1ForFork0_init_~p#1.offset|)))))) is different from false [2024-12-02 14:38:12,555 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 14:38:12,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 51 [2024-12-02 14:38:12,559 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 14:38:12,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 84 treesize of output 32 [2024-12-02 14:38:12,565 INFO L349 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2024-12-02 14:38:12,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 1 [2024-12-02 14:38:12,569 INFO L349 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2024-12-02 14:38:12,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 1 [2024-12-02 14:38:12,573 INFO L349 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2024-12-02 14:38:12,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 1 [2024-12-02 14:38:12,611 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:38:12,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248747366] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:38:12,612 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:38:12,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 19 [2024-12-02 14:38:12,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522534543] [2024-12-02 14:38:12,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:38:12,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 14:38:12,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:38:12,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 14:38:12,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=219, Unknown=13, NotChecked=96, Total=380 [2024-12-02 14:38:12,902 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 273 [2024-12-02 14:38:12,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 614 places, 2074 transitions, 32656 flow. Second operand has 20 states, 20 states have (on average 100.15) internal successors, (2003), 20 states have internal predecessors, (2003), 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) [2024-12-02 14:38:12,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:38:12,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 273 [2024-12-02 14:38:12,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:38:51,501 INFO L124 PetriNetUnfolderBase]: 26675/66305 cut-off events. [2024-12-02 14:38:51,501 INFO L125 PetriNetUnfolderBase]: For 702785/702897 co-relation queries the response was YES. [2024-12-02 14:38:52,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 347067 conditions, 66305 events. 26675/66305 cut-off events. For 702785/702897 co-relation queries the response was YES. Maximal size of possible extension queue 692. Compared 671343 event pairs, 10034 based on Foata normal form. 105/63539 useless extension candidates. Maximal degree in co-relation 346789. Up to 47636 conditions per place. [2024-12-02 14:38:52,897 INFO L140 encePairwiseOnDemand]: 215/273 looper letters, 2218 selfloop transitions, 497 changer transitions 0/2831 dead transitions. [2024-12-02 14:38:52,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 630 places, 2831 transitions, 46085 flow [2024-12-02 14:38:52,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 14:38:52,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-12-02 14:38:52,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2204 transitions. [2024-12-02 14:38:52,901 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4748976513682396 [2024-12-02 14:38:52,901 INFO L175 Difference]: Start difference. First operand has 614 places, 2074 transitions, 32656 flow. Second operand 17 states and 2204 transitions. [2024-12-02 14:38:52,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 630 places, 2831 transitions, 46085 flow [2024-12-02 14:39:06,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 628 places, 2831 transitions, 45136 flow, removed 460 selfloop flow, removed 2 redundant places. [2024-12-02 14:39:06,041 INFO L231 Difference]: Finished difference. Result has 643 places, 2180 transitions, 36609 flow [2024-12-02 14:39:06,042 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=31740, PETRI_DIFFERENCE_MINUEND_PLACES=612, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2074, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=393, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1593, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=36609, PETRI_PLACES=643, PETRI_TRANSITIONS=2180} [2024-12-02 14:39:06,043 INFO L279 CegarLoopForPetriNet]: 274 programPoint places, 369 predicate places. [2024-12-02 14:39:06,043 INFO L471 AbstractCegarLoop]: Abstraction has has 643 places, 2180 transitions, 36609 flow [2024-12-02 14:39:06,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 100.15) internal successors, (2003), 20 states have internal predecessors, (2003), 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) [2024-12-02 14:39:06,043 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:39:06,043 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:39:06,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 14:39:06,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-12-02 14:39:06,244 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-12-02 14:39:06,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:39:06,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1200838694, now seen corresponding path program 9 times [2024-12-02 14:39:06,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:39:06,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110942820] [2024-12-02 14:39:06,245 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 14:39:06,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:39:06,267 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-12-02 14:39:06,267 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 14:39:06,621 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:39:06,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:39:06,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110942820] [2024-12-02 14:39:06,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110942820] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:39:06,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825192427] [2024-12-02 14:39:06,622 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 14:39:06,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:39:06,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:39:06,623 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:39:06,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 14:39:07,685 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-12-02 14:39:07,686 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 14:39:07,689 INFO L256 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-12-02 14:39:07,694 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:39:07,700 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-12-02 14:39:07,729 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-12-02 14:39:07,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-12-02 14:39:07,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 14:39:07,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-12-02 14:39:07,993 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2024-12-02 14:39:08,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2024-12-02 14:39:08,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 47 [2024-12-02 14:39:08,146 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:39:08,146 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:39:09,196 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:39:09,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825192427] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:39:09,196 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:39:09,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 39 [2024-12-02 14:39:09,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908570236] [2024-12-02 14:39:09,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:39:09,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-12-02 14:39:09,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:39:09,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-12-02 14:39:09,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=1382, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 14:39:28,218 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-12-02 14:39:28,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 643 places, 2180 transitions, 36609 flow. Second operand has 40 states, 40 states have (on average 159.0) internal successors, (6360), 40 states have internal predecessors, (6360), 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) [2024-12-02 14:39:28,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:39:28,222 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-12-02 14:39:28,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:40:05,937 INFO L124 PetriNetUnfolderBase]: 21122/60141 cut-off events. [2024-12-02 14:40:05,937 INFO L125 PetriNetUnfolderBase]: For 814057/816741 co-relation queries the response was YES. [2024-12-02 14:40:06,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 343482 conditions, 60141 events. 21122/60141 cut-off events. For 814057/816741 co-relation queries the response was YES. Maximal size of possible extension queue 883. Compared 667192 event pairs, 4532 based on Foata normal form. 406/58475 useless extension candidates. Maximal degree in co-relation 343186. Up to 25624 conditions per place. [2024-12-02 14:40:07,084 INFO L140 encePairwiseOnDemand]: 215/273 looper letters, 3012 selfloop transitions, 679 changer transitions 0/3963 dead transitions. [2024-12-02 14:40:07,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 670 places, 3963 transitions, 71750 flow [2024-12-02 14:40:07,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-12-02 14:40:07,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2024-12-02 14:40:07,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 5068 transitions. [2024-12-02 14:40:07,089 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.663003663003663 [2024-12-02 14:40:07,089 INFO L175 Difference]: Start difference. First operand has 643 places, 2180 transitions, 36609 flow. Second operand 28 states and 5068 transitions. [2024-12-02 14:40:07,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 670 places, 3963 transitions, 71750 flow [2024-12-02 14:40:22,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 669 places, 3963 transitions, 70499 flow, removed 624 selfloop flow, removed 1 redundant places. [2024-12-02 14:40:22,569 INFO L231 Difference]: Finished difference. Result has 689 places, 2442 transitions, 45845 flow [2024-12-02 14:40:22,570 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=35526, PETRI_DIFFERENCE_MINUEND_PLACES=642, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=441, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1666, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=45845, PETRI_PLACES=689, PETRI_TRANSITIONS=2442} [2024-12-02 14:40:22,570 INFO L279 CegarLoopForPetriNet]: 274 programPoint places, 415 predicate places. [2024-12-02 14:40:22,570 INFO L471 AbstractCegarLoop]: Abstraction has has 689 places, 2442 transitions, 45845 flow [2024-12-02 14:40:22,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 159.0) internal successors, (6360), 40 states have internal predecessors, (6360), 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) [2024-12-02 14:40:22,571 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:40:22,571 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:40:22,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-12-02 14:40:22,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:40:22,772 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-12-02 14:40:22,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:40:22,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1734194352, now seen corresponding path program 10 times [2024-12-02 14:40:22,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:40:22,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537117458] [2024-12-02 14:40:22,773 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 14:40:22,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:40:22,791 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 14:40:22,791 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 14:40:23,123 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:40:23,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:40:23,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537117458] [2024-12-02 14:40:23,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537117458] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:40:23,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114463404] [2024-12-02 14:40:23,124 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 14:40:23,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:40:23,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:40:23,125 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:40:23,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 14:40:23,275 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 14:40:23,275 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 14:40:23,276 INFO L256 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-12-02 14:40:23,279 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:40:23,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-12-02 14:40:23,289 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-12-02 14:40:23,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-12-02 14:40:23,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 14:40:23,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-12-02 14:40:23,323 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 14:40:23,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-12-02 14:40:23,336 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 14:40:23,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-12-02 14:40:23,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 32 [2024-12-02 14:40:23,384 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:40:23,384 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:40:23,401 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1911 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_1911) |c_t_funThread1of1ForFork0_init_~p#1.base|) (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 1)) |c_t_funThread1of1ForFork0_init_#t~nondet30#1|)) (forall ((v_ArrVal_1911 (Array Int Int))) (= |c_t_funThread1of1ForFork0_init_#t~nondet30#1| (select (select (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_1911) |c_t_funThread1of1ForFork0_init_~p#1.base|) (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 2)))) (forall ((v_ArrVal_1911 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_1911) |c_t_funThread1of1ForFork0_init_~p#1.base|) |c_t_funThread1of1ForFork0_init_~p#1.offset|) |c_t_funThread1of1ForFork0_init_#t~nondet30#1|)) (forall ((v_ArrVal_1911 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_1911) |c_t_funThread1of1ForFork0_init_~p#1.base|) (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 3)) |c_t_funThread1of1ForFork0_init_#t~nondet30#1|))) is different from false [2024-12-02 14:40:26,622 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 2)) (.cse2 (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 3))) (let ((.cse0 (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| (store (store (select |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base|) .cse1 |c_t_funThread1of1ForFork0_init_#t~nondet30#1|) .cse2 |c_t_funThread1of1ForFork0_init_#t~nondet30#1|)))) (and (forall ((v_ArrVal_1911 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_1911) |c_t_funThread1of1ForFork0_init_~p#1.base|) |c_t_funThread1of1ForFork0_init_~p#1.offset|) |c_t_funThread1of1ForFork0_init_#t~nondet30#1|)) (forall ((v_ArrVal_1911 (Array Int Int))) (= |c_t_funThread1of1ForFork0_init_#t~nondet30#1| (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_1911) |c_t_funThread1of1ForFork0_init_~p#1.base|) .cse1))) (forall ((v_ArrVal_1911 (Array Int Int))) (= |c_t_funThread1of1ForFork0_init_#t~nondet30#1| (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_1911) |c_t_funThread1of1ForFork0_init_~p#1.base|) (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 1)))) (forall ((v_ArrVal_1911 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_1911) |c_t_funThread1of1ForFork0_init_~p#1.base|) .cse2) |c_t_funThread1of1ForFork0_init_#t~nondet30#1|))))) is different from false [2024-12-02 14:40:30,521 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 14:40:30,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 51 [2024-12-02 14:40:30,528 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 14:40:30,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 84 treesize of output 32 [2024-12-02 14:40:30,537 INFO L349 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2024-12-02 14:40:30,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 1 [2024-12-02 14:40:30,544 INFO L349 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2024-12-02 14:40:30,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 1 [2024-12-02 14:40:30,549 INFO L349 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2024-12-02 14:40:30,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 1 [2024-12-02 14:40:30,586 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:40:30,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114463404] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:40:30,586 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:40:30,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 19 [2024-12-02 14:40:30,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659419431] [2024-12-02 14:40:30,586 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:40:30,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 14:40:30,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:40:30,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 14:40:30,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=236, Unknown=23, NotChecked=66, Total=380 [2024-12-02 14:40:30,810 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 273 [2024-12-02 14:40:30,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 689 places, 2442 transitions, 45845 flow. Second operand has 20 states, 20 states have (on average 100.2) internal successors, (2004), 20 states have internal predecessors, (2004), 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) [2024-12-02 14:40:30,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:40:30,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 273 [2024-12-02 14:40:30,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:41:39,499 INFO L124 PetriNetUnfolderBase]: 40558/99798 cut-off events. [2024-12-02 14:41:39,499 INFO L125 PetriNetUnfolderBase]: For 1621623/1621803 co-relation queries the response was YES. [2024-12-02 14:41:41,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 581852 conditions, 99798 events. 40558/99798 cut-off events. For 1621623/1621803 co-relation queries the response was YES. Maximal size of possible extension queue 1165. Compared 1080304 event pairs, 14751 based on Foata normal form. 157/95833 useless extension candidates. Maximal degree in co-relation 581534. Up to 62496 conditions per place. [2024-12-02 14:41:41,974 INFO L140 encePairwiseOnDemand]: 215/273 looper letters, 3374 selfloop transitions, 785 changer transitions 0/4275 dead transitions. [2024-12-02 14:41:41,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 709 places, 4275 transitions, 79269 flow [2024-12-02 14:41:41,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 14:41:41,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-12-02 14:41:41,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2875 transitions. [2024-12-02 14:41:41,979 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5014826443397872 [2024-12-02 14:41:41,979 INFO L175 Difference]: Start difference. First operand has 689 places, 2442 transitions, 45845 flow. Second operand 21 states and 2875 transitions. [2024-12-02 14:41:41,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 709 places, 4275 transitions, 79269 flow [2024-12-02 14:42:22,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 708 places, 4275 transitions, 78055 flow, removed 602 selfloop flow, removed 1 redundant places. [2024-12-02 14:42:22,979 INFO L231 Difference]: Finished difference. Result has 722 places, 2634 transitions, 53459 flow [2024-12-02 14:42:22,981 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=44655, PETRI_DIFFERENCE_MINUEND_PLACES=688, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=616, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1757, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=53459, PETRI_PLACES=722, PETRI_TRANSITIONS=2634} [2024-12-02 14:42:22,982 INFO L279 CegarLoopForPetriNet]: 274 programPoint places, 448 predicate places. [2024-12-02 14:42:22,982 INFO L471 AbstractCegarLoop]: Abstraction has has 722 places, 2634 transitions, 53459 flow [2024-12-02 14:42:22,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 100.2) internal successors, (2004), 20 states have internal predecessors, (2004), 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) [2024-12-02 14:42:22,984 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:42:22,985 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:42:22,995 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 14:42:23,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-12-02 14:42:23,185 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-12-02 14:42:23,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:42:23,190 INFO L85 PathProgramCache]: Analyzing trace with hash 964967790, now seen corresponding path program 11 times [2024-12-02 14:42:23,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:42:23,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932807512] [2024-12-02 14:42:23,190 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 14:42:23,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:42:23,294 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 14:42:23,294 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 14:42:24,112 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:42:24,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:42:24,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932807512] [2024-12-02 14:42:24,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932807512] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:42:24,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399629763] [2024-12-02 14:42:24,112 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 14:42:24,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:42:24,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:42:24,115 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:42:24,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 14:42:24,349 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 14:42:24,349 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 14:42:24,351 INFO L256 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-12-02 14:42:24,356 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:42:24,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-12-02 14:42:24,386 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-12-02 14:42:24,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-12-02 14:42:24,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 14:42:24,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-12-02 14:42:24,454 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 14:42:24,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-12-02 14:42:24,477 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 14:42:24,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-12-02 14:42:24,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 32 [2024-12-02 14:42:24,524 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:42:24,524 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:42:24,554 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2076 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_2076) |c_t_funThread1of1ForFork0_init_~p#1.base|) |c_t_funThread1of1ForFork0_init_~p#1.offset|) |c_t_funThread1of1ForFork0_init_#t~nondet30#1|)) (forall ((v_ArrVal_2076 (Array Int Int))) (= |c_t_funThread1of1ForFork0_init_#t~nondet30#1| (select (select (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_2076) |c_t_funThread1of1ForFork0_init_~p#1.base|) (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 2)))) (forall ((v_ArrVal_2076 (Array Int Int))) (= |c_t_funThread1of1ForFork0_init_#t~nondet30#1| (select (select (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_2076) |c_t_funThread1of1ForFork0_init_~p#1.base|) (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 3)))) (forall ((v_ArrVal_2076 (Array Int Int))) (= |c_t_funThread1of1ForFork0_init_#t~nondet30#1| (select (select (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_2076) |c_t_funThread1of1ForFork0_init_~p#1.base|) (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 1))))) is different from false [2024-12-02 14:42:30,944 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 1)) (.cse1 (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 2)) (.cse3 (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 3))) (let ((.cse0 (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| (store (store (store (select |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base|) .cse2 |c_t_funThread1of1ForFork0_init_#t~nondet30#1|) .cse1 |c_t_funThread1of1ForFork0_init_#t~nondet30#1|) .cse3 |c_t_funThread1of1ForFork0_init_#t~nondet30#1|)))) (and (forall ((v_ArrVal_2076 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_2076) |c_t_funThread1of1ForFork0_init_~p#1.base|) .cse1) |c_t_funThread1of1ForFork0_init_#t~nondet30#1|)) (forall ((v_ArrVal_2076 (Array Int Int))) (= |c_t_funThread1of1ForFork0_init_#t~nondet30#1| (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_2076) |c_t_funThread1of1ForFork0_init_~p#1.base|) |c_t_funThread1of1ForFork0_init_~p#1.offset|))) (forall ((v_ArrVal_2076 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_2076) |c_t_funThread1of1ForFork0_init_~p#1.base|) .cse2) |c_t_funThread1of1ForFork0_init_#t~nondet30#1|)) (forall ((v_ArrVal_2076 (Array Int Int))) (= |c_t_funThread1of1ForFork0_init_#t~nondet30#1| (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_2076) |c_t_funThread1of1ForFork0_init_~p#1.base|) .cse3)))))) is different from false [2024-12-02 14:42:30,961 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 14:42:30,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 51 [2024-12-02 14:42:30,967 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 14:42:30,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 28 [2024-12-02 14:42:30,979 INFO L349 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2024-12-02 14:42:30,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 1 [2024-12-02 14:42:30,986 INFO L349 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2024-12-02 14:42:30,986 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 1 [2024-12-02 14:42:30,993 INFO L349 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2024-12-02 14:42:30,993 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 1 [2024-12-02 14:42:31,044 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:42:31,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399629763] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:42:31,044 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:42:31,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 20 [2024-12-02 14:42:31,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590696007] [2024-12-02 14:42:31,044 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:42:31,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 14:42:31,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:42:31,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 14:42:31,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=271, Unknown=22, NotChecked=70, Total=420 [2024-12-02 14:42:31,443 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 273 [2024-12-02 14:42:31,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 722 places, 2634 transitions, 53459 flow. Second operand has 21 states, 21 states have (on average 100.04761904761905) internal successors, (2101), 21 states have internal predecessors, (2101), 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) [2024-12-02 14:42:31,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:42:31,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 273 [2024-12-02 14:42:31,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:43:47,258 INFO L124 PetriNetUnfolderBase]: 42067/103333 cut-off events. [2024-12-02 14:43:47,258 INFO L125 PetriNetUnfolderBase]: For 2009432/2009654 co-relation queries the response was YES. [2024-12-02 14:43:49,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 627080 conditions, 103333 events. 42067/103333 cut-off events. For 2009432/2009654 co-relation queries the response was YES. Maximal size of possible extension queue 1216. Compared 1126538 event pairs, 12879 based on Foata normal form. 166/99334 useless extension candidates. Maximal degree in co-relation 626746. Up to 76548 conditions per place. [2024-12-02 14:43:49,612 INFO L140 encePairwiseOnDemand]: 215/273 looper letters, 2645 selfloop transitions, 868 changer transitions 0/3629 dead transitions. [2024-12-02 14:43:49,612 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 744 places, 3629 transitions, 73836 flow [2024-12-02 14:43:49,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-02 14:43:49,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-12-02 14:43:49,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3000 transitions. [2024-12-02 14:43:49,615 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47778308647873863 [2024-12-02 14:43:49,616 INFO L175 Difference]: Start difference. First operand has 722 places, 2634 transitions, 53459 flow. Second operand 23 states and 3000 transitions. [2024-12-02 14:43:49,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 744 places, 3629 transitions, 73836 flow [2024-12-02 14:44:35,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 740 places, 3629 transitions, 72457 flow, removed 640 selfloop flow, removed 4 redundant places. [2024-12-02 14:44:35,544 INFO L231 Difference]: Finished difference. Result has 753 places, 2774 transitions, 59740 flow [2024-12-02 14:44:35,546 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=52082, PETRI_DIFFERENCE_MINUEND_PLACES=718, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2634, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=739, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1816, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=59740, PETRI_PLACES=753, PETRI_TRANSITIONS=2774} [2024-12-02 14:44:35,547 INFO L279 CegarLoopForPetriNet]: 274 programPoint places, 479 predicate places. [2024-12-02 14:44:35,547 INFO L471 AbstractCegarLoop]: Abstraction has has 753 places, 2774 transitions, 59740 flow [2024-12-02 14:44:35,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 100.04761904761905) internal successors, (2101), 21 states have internal predecessors, (2101), 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) [2024-12-02 14:44:35,549 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:44:35,549 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:44:35,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 14:44:35,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:44:35,750 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-12-02 14:44:35,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:44:35,752 INFO L85 PathProgramCache]: Analyzing trace with hash -280590976, now seen corresponding path program 12 times [2024-12-02 14:44:35,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:44:35,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897353022] [2024-12-02 14:44:35,752 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 14:44:35,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:44:35,792 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-12-02 14:44:35,792 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 14:44:36,357 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:44:36,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:44:36,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897353022] [2024-12-02 14:44:36,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897353022] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:44:36,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136242043] [2024-12-02 14:44:36,357 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 14:44:36,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:44:36,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:44:36,359 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:44:36,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0791de-a415-4875-b17f-7fb8d8b2bcbf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 14:44:37,141 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-12-02 14:44:37,142 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 14:44:37,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-12-02 14:44:37,147 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:44:37,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-12-02 14:44:37,159 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-12-02 14:44:37,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-12-02 14:44:37,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 14:44:37,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-12-02 14:44:37,208 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 14:44:37,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-12-02 14:44:37,222 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 14:44:37,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-12-02 14:44:37,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 32 [2024-12-02 14:44:37,258 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:44:37,258 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:44:37,278 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2241 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_2241) |c_t_funThread1of1ForFork0_init_~p#1.base|) (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 1)) |c_t_funThread1of1ForFork0_init_#t~nondet30#1|)) (forall ((v_ArrVal_2241 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_2241) |c_t_funThread1of1ForFork0_init_~p#1.base|) (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 3)) |c_t_funThread1of1ForFork0_init_#t~nondet30#1|)) (forall ((v_ArrVal_2241 (Array Int Int))) (= |c_t_funThread1of1ForFork0_init_#t~nondet30#1| (select (select (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_2241) |c_t_funThread1of1ForFork0_init_~p#1.base|) |c_t_funThread1of1ForFork0_init_~p#1.offset|))) (forall ((v_ArrVal_2241 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_2241) |c_t_funThread1of1ForFork0_init_~p#1.base|) (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 2)) |c_t_funThread1of1ForFork0_init_#t~nondet30#1|))) is different from false [2024-12-02 14:44:37,439 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 1)) (.cse3 (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 2)) (.cse2 (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 3))) (let ((.cse0 (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| (store (store (store (select |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base|) .cse1 |c_t_funThread1of1ForFork0_init_#t~nondet30#1|) .cse3 |c_t_funThread1of1ForFork0_init_#t~nondet30#1|) .cse2 |c_t_funThread1of1ForFork0_init_#t~nondet30#1|)))) (and (forall ((v_ArrVal_2241 (Array Int Int))) (= |c_t_funThread1of1ForFork0_init_#t~nondet30#1| (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_2241) |c_t_funThread1of1ForFork0_init_~p#1.base|) |c_t_funThread1of1ForFork0_init_~p#1.offset|))) (forall ((v_ArrVal_2241 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_2241) |c_t_funThread1of1ForFork0_init_~p#1.base|) .cse1) |c_t_funThread1of1ForFork0_init_#t~nondet30#1|)) (forall ((v_ArrVal_2241 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_2241) |c_t_funThread1of1ForFork0_init_~p#1.base|) .cse2) |c_t_funThread1of1ForFork0_init_#t~nondet30#1|)) (forall ((v_ArrVal_2241 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_init_~p#1.base| v_ArrVal_2241) |c_t_funThread1of1ForFork0_init_~p#1.base|) .cse3) |c_t_funThread1of1ForFork0_init_#t~nondet30#1|))))) is different from false [2024-12-02 14:44:40,333 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 14:44:40,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 51 [2024-12-02 14:44:40,338 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 14:44:40,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 84 treesize of output 32 [2024-12-02 14:44:40,346 INFO L349 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2024-12-02 14:44:40,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 1 [2024-12-02 14:44:40,351 INFO L349 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2024-12-02 14:44:40,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 1 [2024-12-02 14:44:40,358 INFO L349 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2024-12-02 14:44:40,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 1 [2024-12-02 14:44:40,394 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:44:40,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [136242043] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:44:40,394 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:44:40,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 20 [2024-12-02 14:44:40,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385348777] [2024-12-02 14:44:40,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:44:40,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 14:44:40,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:44:40,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 14:44:40,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=270, Unknown=26, NotChecked=70, Total=420 [2024-12-02 14:44:41,122 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 273 [2024-12-02 14:44:41,123 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 753 places, 2774 transitions, 59740 flow. Second operand has 21 states, 21 states have (on average 100.0952380952381) internal successors, (2102), 21 states have internal predecessors, (2102), 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) [2024-12-02 14:44:41,123 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:44:41,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 273 [2024-12-02 14:44:41,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:46:06,512 INFO L124 PetriNetUnfolderBase]: 43926/107956 cut-off events. [2024-12-02 14:46:06,513 INFO L125 PetriNetUnfolderBase]: For 2419815/2420051 co-relation queries the response was YES.