./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:52:59,477 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:52:59,585 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 03:52:59,591 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:52:59,591 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:52:59,618 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:52:59,619 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:52:59,619 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:52:59,620 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:52:59,620 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:52:59,620 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:52:59,620 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:52:59,621 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:52:59,621 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:52:59,621 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:52:59,621 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:52:59,621 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:52:59,622 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:52:59,622 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:52:59,622 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:52:59,622 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:52:59,622 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:52:59,622 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:52:59,622 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:52:59,623 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 03:52:59,623 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:52:59,623 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:52:59,623 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:52:59,623 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:52:59,623 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:52:59,623 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:52:59,623 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:52:59,623 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:52:59,623 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:52:59,624 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:52:59,624 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:52:59,624 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:52:59,624 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:52:59,625 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:52:59,625 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:52:59,625 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:52:59,625 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:52:59,625 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:52:59,625 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:52:59,626 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:52:59,626 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:52:59,626 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:52:59,626 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:52:59,626 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:52:59,626 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:52:59,626 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_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 [2024-11-28 03:52:59,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:52:59,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:52:59,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:52:59,982 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:52:59,982 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:52:59,984 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2024-11-28 03:53:02,955 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/data/43f6f65cf/233dd720b6094cd79a684f79d4117e93/FLAG9007b1f74 [2024-11-28 03:53:03,338 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:53:03,339 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2024-11-28 03:53:03,361 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/data/43f6f65cf/233dd720b6094cd79a684f79d4117e93/FLAG9007b1f74 [2024-11-28 03:53:03,376 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/data/43f6f65cf/233dd720b6094cd79a684f79d4117e93 [2024-11-28 03:53:03,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:53:03,380 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:53:03,382 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:53:03,382 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:53:03,387 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:53:03,387 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:53:03" (1/1) ... [2024-11-28 03:53:03,388 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d4a3128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:03, skipping insertion in model container [2024-11-28 03:53:03,389 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:53:03" (1/1) ... [2024-11-28 03:53:03,430 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:53:04,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:53:04,076 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:53:04,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:53:04,237 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:53:04,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:04 WrapperNode [2024-11-28 03:53:04,238 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:53:04,239 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:53:04,240 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:53:04,240 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:53:04,246 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:04" (1/1) ... [2024-11-28 03:53:04,262 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:04" (1/1) ... [2024-11-28 03:53:04,282 INFO L138 Inliner]: procedures = 364, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 119 [2024-11-28 03:53:04,283 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:53:04,283 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:53:04,283 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:53:04,283 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:53:04,292 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:04" (1/1) ... [2024-11-28 03:53:04,292 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:04" (1/1) ... [2024-11-28 03:53:04,295 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:04" (1/1) ... [2024-11-28 03:53:04,308 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:53:04,308 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:04" (1/1) ... [2024-11-28 03:53:04,308 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:04" (1/1) ... [2024-11-28 03:53:04,314 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:04" (1/1) ... [2024-11-28 03:53:04,315 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:04" (1/1) ... [2024-11-28 03:53:04,318 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:04" (1/1) ... [2024-11-28 03:53:04,320 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:04" (1/1) ... [2024-11-28 03:53:04,321 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:04" (1/1) ... [2024-11-28 03:53:04,323 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:53:04,324 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:53:04,324 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:53:04,324 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:53:04,325 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:04" (1/1) ... [2024-11-28 03:53:04,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:53:04,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:53:04,363 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:53:04,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:53:04,396 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-28 03:53:04,396 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-28 03:53:04,396 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2024-11-28 03:53:04,396 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2024-11-28 03:53:04,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:53:04,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:53:04,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:53:04,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:53:04,400 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 03:53:04,584 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:53:04,586 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:53:04,889 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:53:04,889 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:53:05,352 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:53:05,352 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:53:05,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:53:05 BoogieIcfgContainer [2024-11-28 03:53:05,353 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:53:05,355 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:53:05,355 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:53:05,361 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:53:05,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:53:03" (1/3) ... [2024-11-28 03:53:05,362 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b1c712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:53:05, skipping insertion in model container [2024-11-28 03:53:05,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:04" (2/3) ... [2024-11-28 03:53:05,362 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b1c712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:53:05, skipping insertion in model container [2024-11-28 03:53:05,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:53:05" (3/3) ... [2024-11-28 03:53:05,364 INFO L128 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-3.i [2024-11-28 03:53:05,381 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:53:05,383 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pthread-demo-datarace-3.i that has 2 procedures, 29 locations, 1 initial locations, 2 loop locations, and 8 error locations. [2024-11-28 03:53:05,383 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:53:05,450 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-28 03:53:05,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 30 transitions, 67 flow [2024-11-28 03:53:05,593 INFO L124 PetriNetUnfolderBase]: 2/29 cut-off events. [2024-11-28 03:53:05,596 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 03:53:05,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 29 events. 2/29 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 60 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2024-11-28 03:53:05,599 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 30 transitions, 67 flow [2024-11-28 03:53:05,603 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 27 transitions, 57 flow [2024-11-28 03:53:05,616 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:53:05,636 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;@7a0527f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:53:05,636 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-28 03:53:05,644 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:53:05,644 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2024-11-28 03:53:05,644 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:53:05,644 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:53:05,648 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-28 03:53:05,648 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:53:05,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:53:05,654 INFO L85 PathProgramCache]: Analyzing trace with hash 367891283, now seen corresponding path program 1 times [2024-11-28 03:53:05,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:53:05,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922107129] [2024-11-28 03:53:05,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:53:05,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:53:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:53:06,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:53:06,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:53:06,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922107129] [2024-11-28 03:53:06,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922107129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:53:06,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:53:06,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 03:53:06,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84943875] [2024-11-28 03:53:06,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:53:06,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:53:06,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:53:06,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:53:06,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:53:06,132 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 30 [2024-11-28 03:53:06,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 27 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:06,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:53:06,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 30 [2024-11-28 03:53:06,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:53:06,229 INFO L124 PetriNetUnfolderBase]: 42/136 cut-off events. [2024-11-28 03:53:06,231 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:53:06,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 136 events. 42/136 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 562 event pairs, 6 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 216. Up to 66 conditions per place. [2024-11-28 03:53:06,234 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 17 selfloop transitions, 3 changer transitions 0/34 dead transitions. [2024-11-28 03:53:06,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 34 transitions, 111 flow [2024-11-28 03:53:06,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:53:06,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:53:06,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2024-11-28 03:53:06,253 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7444444444444445 [2024-11-28 03:53:06,255 INFO L175 Difference]: Start difference. First operand has 29 places, 27 transitions, 57 flow. Second operand 3 states and 67 transitions. [2024-11-28 03:53:06,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 34 transitions, 111 flow [2024-11-28 03:53:06,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 34 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:53:06,269 INFO L231 Difference]: Finished difference. Result has 31 places, 29 transitions, 77 flow [2024-11-28 03:53:06,272 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=31, PETRI_TRANSITIONS=29} [2024-11-28 03:53:06,278 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2024-11-28 03:53:06,279 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 29 transitions, 77 flow [2024-11-28 03:53:06,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:06,280 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:53:06,280 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-28 03:53:06,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:53:06,281 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread_function_dataraceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:53:06,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:53:06,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1479508844, now seen corresponding path program 1 times [2024-11-28 03:53:06,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:53:06,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626969711] [2024-11-28 03:53:06,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:53:06,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:53:06,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:53:06,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:53:06,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:53:06,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626969711] [2024-11-28 03:53:06,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626969711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:53:06,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:53:06,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:53:06,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610947089] [2024-11-28 03:53:06,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:53:06,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:53:06,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:53:06,438 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:53:06,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:53:06,452 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-28 03:53:06,453 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 29 transitions, 77 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:06,453 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:53:06,453 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-28 03:53:06,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:53:06,642 INFO L124 PetriNetUnfolderBase]: 68/189 cut-off events. [2024-11-28 03:53:06,646 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-28 03:53:06,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 189 events. 68/189 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 864 event pairs, 18 based on Foata normal form. 8/158 useless extension candidates. Maximal degree in co-relation 370. Up to 107 conditions per place. [2024-11-28 03:53:06,649 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 26 selfloop transitions, 7 changer transitions 0/44 dead transitions. [2024-11-28 03:53:06,649 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 44 transitions, 182 flow [2024-11-28 03:53:06,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:53:06,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:53:06,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 97 transitions. [2024-11-28 03:53:06,652 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6466666666666666 [2024-11-28 03:53:06,652 INFO L175 Difference]: Start difference. First operand has 31 places, 29 transitions, 77 flow. Second operand 5 states and 97 transitions. [2024-11-28 03:53:06,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 44 transitions, 182 flow [2024-11-28 03:53:06,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 44 transitions, 178 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:53:06,655 INFO L231 Difference]: Finished difference. Result has 37 places, 33 transitions, 120 flow [2024-11-28 03:53:06,655 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=120, PETRI_PLACES=37, PETRI_TRANSITIONS=33} [2024-11-28 03:53:06,672 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 8 predicate places. [2024-11-28 03:53:06,673 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 120 flow [2024-11-28 03:53:06,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:06,673 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:53:06,673 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:53:06,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:53:06,673 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:53:06,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:53:06,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1356217472, now seen corresponding path program 1 times [2024-11-28 03:53:06,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:53:06,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461500603] [2024-11-28 03:53:06,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:53:06,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:53:06,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:53:06,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:53:06,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:53:06,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461500603] [2024-11-28 03:53:06,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461500603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:53:06,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:53:06,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:53:06,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700156344] [2024-11-28 03:53:06,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:53:06,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:53:06,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:53:06,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:53:06,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:53:06,852 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2024-11-28 03:53:06,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 33 transitions, 120 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:06,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:53:06,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2024-11-28 03:53:06,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:53:07,021 INFO L124 PetriNetUnfolderBase]: 78/235 cut-off events. [2024-11-28 03:53:07,021 INFO L125 PetriNetUnfolderBase]: For 71/72 co-relation queries the response was YES. [2024-11-28 03:53:07,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 527 conditions, 235 events. 78/235 cut-off events. For 71/72 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1180 event pairs, 23 based on Foata normal form. 13/205 useless extension candidates. Maximal degree in co-relation 512. Up to 97 conditions per place. [2024-11-28 03:53:07,028 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 32 selfloop transitions, 3 changer transitions 0/49 dead transitions. [2024-11-28 03:53:07,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 49 transitions, 242 flow [2024-11-28 03:53:07,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:53:07,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:53:07,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 83 transitions. [2024-11-28 03:53:07,030 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6916666666666667 [2024-11-28 03:53:07,030 INFO L175 Difference]: Start difference. First operand has 37 places, 33 transitions, 120 flow. Second operand 4 states and 83 transitions. [2024-11-28 03:53:07,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 49 transitions, 242 flow [2024-11-28 03:53:07,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 49 transitions, 238 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:53:07,036 INFO L231 Difference]: Finished difference. Result has 41 places, 35 transitions, 140 flow [2024-11-28 03:53:07,037 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=140, PETRI_PLACES=41, PETRI_TRANSITIONS=35} [2024-11-28 03:53:07,037 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 12 predicate places. [2024-11-28 03:53:07,038 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 35 transitions, 140 flow [2024-11-28 03:53:07,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:07,041 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:53:07,041 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:53:07,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:53:07,041 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread_function_dataraceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:53:07,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:53:07,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1119730795, now seen corresponding path program 1 times [2024-11-28 03:53:07,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:53:07,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863981499] [2024-11-28 03:53:07,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:53:07,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:53:07,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:53:07,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:53:07,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:53:07,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863981499] [2024-11-28 03:53:07,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863981499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:53:07,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:53:07,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:53:07,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885439723] [2024-11-28 03:53:07,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:53:07,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:53:07,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:53:07,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:53:07,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:53:07,260 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-28 03:53:07,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 35 transitions, 140 flow. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:07,260 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:53:07,260 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-28 03:53:07,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:53:07,504 INFO L124 PetriNetUnfolderBase]: 138/424 cut-off events. [2024-11-28 03:53:07,504 INFO L125 PetriNetUnfolderBase]: For 257/278 co-relation queries the response was YES. [2024-11-28 03:53:07,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1072 conditions, 424 events. 138/424 cut-off events. For 257/278 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2425 event pairs, 19 based on Foata normal form. 17/381 useless extension candidates. Maximal degree in co-relation 1055. Up to 117 conditions per place. [2024-11-28 03:53:07,512 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 46 selfloop transitions, 10 changer transitions 0/68 dead transitions. [2024-11-28 03:53:07,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 68 transitions, 383 flow [2024-11-28 03:53:07,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:53:07,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:53:07,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 125 transitions. [2024-11-28 03:53:07,514 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6944444444444444 [2024-11-28 03:53:07,514 INFO L175 Difference]: Start difference. First operand has 41 places, 35 transitions, 140 flow. Second operand 6 states and 125 transitions. [2024-11-28 03:53:07,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 68 transitions, 383 flow [2024-11-28 03:53:07,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 68 transitions, 376 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:53:07,523 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 218 flow [2024-11-28 03:53:07,525 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=218, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2024-11-28 03:53:07,526 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 20 predicate places. [2024-11-28 03:53:07,526 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 218 flow [2024-11-28 03:53:07,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:07,527 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:53:07,527 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:53:07,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:53:07,527 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:53:07,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:53:07,528 INFO L85 PathProgramCache]: Analyzing trace with hash -351915883, now seen corresponding path program 1 times [2024-11-28 03:53:07,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:53:07,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674896343] [2024-11-28 03:53:07,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:53:07,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:53:07,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:53:07,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:53:07,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:53:07,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674896343] [2024-11-28 03:53:07,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674896343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:53:07,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:53:07,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:53:07,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410851878] [2024-11-28 03:53:07,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:53:07,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:53:07,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:53:07,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:53:07,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:53:07,713 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-28 03:53:07,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 218 flow. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:07,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:53:07,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-28 03:53:07,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:53:07,931 INFO L124 PetriNetUnfolderBase]: 160/515 cut-off events. [2024-11-28 03:53:07,931 INFO L125 PetriNetUnfolderBase]: For 852/867 co-relation queries the response was YES. [2024-11-28 03:53:07,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1489 conditions, 515 events. 160/515 cut-off events. For 852/867 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3086 event pairs, 23 based on Foata normal form. 29/521 useless extension candidates. Maximal degree in co-relation 1467. Up to 239 conditions per place. [2024-11-28 03:53:07,937 INFO L140 encePairwiseOnDemand]: 21/30 looper letters, 41 selfloop transitions, 20 changer transitions 0/73 dead transitions. [2024-11-28 03:53:07,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 73 transitions, 497 flow [2024-11-28 03:53:07,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:53:07,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 03:53:07,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 136 transitions. [2024-11-28 03:53:07,941 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6476190476190476 [2024-11-28 03:53:07,941 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 218 flow. Second operand 7 states and 136 transitions. [2024-11-28 03:53:07,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 73 transitions, 497 flow [2024-11-28 03:53:07,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 73 transitions, 485 flow, removed 4 selfloop flow, removed 1 redundant places. [2024-11-28 03:53:07,954 INFO L231 Difference]: Finished difference. Result has 57 places, 53 transitions, 370 flow [2024-11-28 03:53:07,954 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=370, PETRI_PLACES=57, PETRI_TRANSITIONS=53} [2024-11-28 03:53:07,958 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 28 predicate places. [2024-11-28 03:53:07,958 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 53 transitions, 370 flow [2024-11-28 03:53:07,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:07,959 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:53:07,959 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:53:07,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:53:07,959 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread_function_dataraceErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:53:07,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:53:07,960 INFO L85 PathProgramCache]: Analyzing trace with hash 470886679, now seen corresponding path program 1 times [2024-11-28 03:53:07,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:53:07,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029900571] [2024-11-28 03:53:07,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:53:07,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:53:07,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:53:08,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:53:08,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:53:08,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029900571] [2024-11-28 03:53:08,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029900571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:53:08,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:53:08,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:53:08,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95838381] [2024-11-28 03:53:08,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:53:08,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:53:08,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:53:08,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:53:08,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:53:08,097 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2024-11-28 03:53:08,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 53 transitions, 370 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:08,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:53:08,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2024-11-28 03:53:08,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:53:08,271 INFO L124 PetriNetUnfolderBase]: 195/592 cut-off events. [2024-11-28 03:53:08,271 INFO L125 PetriNetUnfolderBase]: For 1741/1841 co-relation queries the response was YES. [2024-11-28 03:53:08,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1949 conditions, 592 events. 195/592 cut-off events. For 1741/1841 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3748 event pairs, 55 based on Foata normal form. 46/601 useless extension candidates. Maximal degree in co-relation 1923. Up to 264 conditions per place. [2024-11-28 03:53:08,279 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 47 selfloop transitions, 3 changer transitions 0/75 dead transitions. [2024-11-28 03:53:08,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 75 transitions, 618 flow [2024-11-28 03:53:08,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:53:08,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:53:08,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 85 transitions. [2024-11-28 03:53:08,281 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2024-11-28 03:53:08,281 INFO L175 Difference]: Start difference. First operand has 57 places, 53 transitions, 370 flow. Second operand 4 states and 85 transitions. [2024-11-28 03:53:08,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 75 transitions, 618 flow [2024-11-28 03:53:08,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 75 transitions, 595 flow, removed 7 selfloop flow, removed 2 redundant places. [2024-11-28 03:53:08,294 INFO L231 Difference]: Finished difference. Result has 60 places, 55 transitions, 374 flow [2024-11-28 03:53:08,295 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=374, PETRI_PLACES=60, PETRI_TRANSITIONS=55} [2024-11-28 03:53:08,295 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 31 predicate places. [2024-11-28 03:53:08,295 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 55 transitions, 374 flow [2024-11-28 03:53:08,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:08,295 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:53:08,296 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:53:08,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:53:08,297 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:53:08,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:53:08,297 INFO L85 PathProgramCache]: Analyzing trace with hash -137353936, now seen corresponding path program 1 times [2024-11-28 03:53:08,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:53:08,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128428149] [2024-11-28 03:53:08,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:53:08,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:53:08,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:53:08,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:53:08,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:53:08,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128428149] [2024-11-28 03:53:08,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128428149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:53:08,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:53:08,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:53:08,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581553400] [2024-11-28 03:53:08,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:53:08,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:53:08,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:53:08,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:53:08,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:53:08,445 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-28 03:53:08,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 55 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:08,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:53:08,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-28 03:53:08,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:53:08,730 INFO L124 PetriNetUnfolderBase]: 247/736 cut-off events. [2024-11-28 03:53:08,730 INFO L125 PetriNetUnfolderBase]: For 2498/2547 co-relation queries the response was YES. [2024-11-28 03:53:08,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2701 conditions, 736 events. 247/736 cut-off events. For 2498/2547 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4594 event pairs, 38 based on Foata normal form. 49/774 useless extension candidates. Maximal degree in co-relation 2673. Up to 268 conditions per place. [2024-11-28 03:53:08,740 INFO L140 encePairwiseOnDemand]: 21/30 looper letters, 65 selfloop transitions, 31 changer transitions 0/109 dead transitions. [2024-11-28 03:53:08,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 109 transitions, 928 flow [2024-11-28 03:53:08,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:53:08,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 03:53:08,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 195 transitions. [2024-11-28 03:53:08,742 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.65 [2024-11-28 03:53:08,742 INFO L175 Difference]: Start difference. First operand has 60 places, 55 transitions, 374 flow. Second operand 10 states and 195 transitions. [2024-11-28 03:53:08,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 109 transitions, 928 flow [2024-11-28 03:53:08,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 109 transitions, 922 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:53:08,754 INFO L231 Difference]: Finished difference. Result has 72 places, 72 transitions, 672 flow [2024-11-28 03:53:08,754 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=672, PETRI_PLACES=72, PETRI_TRANSITIONS=72} [2024-11-28 03:53:08,755 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 43 predicate places. [2024-11-28 03:53:08,755 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 72 transitions, 672 flow [2024-11-28 03:53:08,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:08,755 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:53:08,755 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:53:08,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:53:08,755 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:53:08,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:53:08,758 INFO L85 PathProgramCache]: Analyzing trace with hash 372319479, now seen corresponding path program 1 times [2024-11-28 03:53:08,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:53:08,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489963198] [2024-11-28 03:53:08,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:53:08,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:53:08,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:53:08,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:53:08,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:53:08,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489963198] [2024-11-28 03:53:08,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489963198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:53:08,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:53:08,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:53:08,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303482789] [2024-11-28 03:53:08,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:53:08,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:53:08,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:53:08,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:53:08,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:53:08,897 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-28 03:53:08,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 72 transitions, 672 flow. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:08,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:53:08,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-28 03:53:08,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:53:09,157 INFO L124 PetriNetUnfolderBase]: 194/613 cut-off events. [2024-11-28 03:53:09,158 INFO L125 PetriNetUnfolderBase]: For 3464/3503 co-relation queries the response was YES. [2024-11-28 03:53:09,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2417 conditions, 613 events. 194/613 cut-off events. For 3464/3503 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3694 event pairs, 52 based on Foata normal form. 70/668 useless extension candidates. Maximal degree in co-relation 2384. Up to 364 conditions per place. [2024-11-28 03:53:09,164 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 52 selfloop transitions, 11 changer transitions 0/76 dead transitions. [2024-11-28 03:53:09,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 76 transitions, 742 flow [2024-11-28 03:53:09,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:53:09,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-28 03:53:09,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 132 transitions. [2024-11-28 03:53:09,165 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.55 [2024-11-28 03:53:09,165 INFO L175 Difference]: Start difference. First operand has 72 places, 72 transitions, 672 flow. Second operand 8 states and 132 transitions. [2024-11-28 03:53:09,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 76 transitions, 742 flow [2024-11-28 03:53:09,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 76 transitions, 666 flow, removed 13 selfloop flow, removed 8 redundant places. [2024-11-28 03:53:09,176 INFO L231 Difference]: Finished difference. Result has 70 places, 61 transitions, 473 flow [2024-11-28 03:53:09,176 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=437, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=473, PETRI_PLACES=70, PETRI_TRANSITIONS=61} [2024-11-28 03:53:09,176 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 41 predicate places. [2024-11-28 03:53:09,177 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 61 transitions, 473 flow [2024-11-28 03:53:09,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:09,177 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:53:09,177 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 03:53:09,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:53:09,177 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:53:09,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:53:09,177 INFO L85 PathProgramCache]: Analyzing trace with hash 378290958, now seen corresponding path program 1 times [2024-11-28 03:53:09,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:53:09,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097254371] [2024-11-28 03:53:09,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:53:09,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:53:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:53:09,276 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:53:09,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:53:09,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097254371] [2024-11-28 03:53:09,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097254371] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:53:09,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321348141] [2024-11-28 03:53:09,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:53:09,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:53:09,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:53:09,283 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:53:09,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:53:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:53:09,462 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:53:09,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:53:09,557 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:53:09,557 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:53:09,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321348141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:53:09,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:53:09,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-28 03:53:09,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059533863] [2024-11-28 03:53:09,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:53:09,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:53:09,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:53:09,559 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:53:09,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:53:09,572 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-28 03:53:09,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 61 transitions, 473 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:09,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:53:09,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-28 03:53:09,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:53:09,757 INFO L124 PetriNetUnfolderBase]: 247/650 cut-off events. [2024-11-28 03:53:09,757 INFO L125 PetriNetUnfolderBase]: For 2652/2757 co-relation queries the response was YES. [2024-11-28 03:53:09,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2498 conditions, 650 events. 247/650 cut-off events. For 2652/2757 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3883 event pairs, 36 based on Foata normal form. 61/652 useless extension candidates. Maximal degree in co-relation 2468. Up to 279 conditions per place. [2024-11-28 03:53:09,764 INFO L140 encePairwiseOnDemand]: 26/30 looper letters, 48 selfloop transitions, 5 changer transitions 0/78 dead transitions. [2024-11-28 03:53:09,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 78 transitions, 702 flow [2024-11-28 03:53:09,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:53:09,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:53:09,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 71 transitions. [2024-11-28 03:53:09,766 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5916666666666667 [2024-11-28 03:53:09,766 INFO L175 Difference]: Start difference. First operand has 70 places, 61 transitions, 473 flow. Second operand 4 states and 71 transitions. [2024-11-28 03:53:09,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 78 transitions, 702 flow [2024-11-28 03:53:09,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 78 transitions, 683 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-28 03:53:09,775 INFO L231 Difference]: Finished difference. Result has 67 places, 60 transitions, 464 flow [2024-11-28 03:53:09,775 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=464, PETRI_PLACES=67, PETRI_TRANSITIONS=60} [2024-11-28 03:53:09,776 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 38 predicate places. [2024-11-28 03:53:09,776 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 60 transitions, 464 flow [2024-11-28 03:53:09,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:09,776 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:53:09,776 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-28 03:53:09,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:53:09,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:53:09,978 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:53:09,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:53:09,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1157881831, now seen corresponding path program 1 times [2024-11-28 03:53:09,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:53:09,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296122684] [2024-11-28 03:53:09,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:53:09,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:53:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:53:10,070 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:53:10,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:53:10,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296122684] [2024-11-28 03:53:10,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296122684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:53:10,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:53:10,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:53:10,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549324267] [2024-11-28 03:53:10,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:53:10,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:53:10,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:53:10,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:53:10,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:53:10,082 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-28 03:53:10,082 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 60 transitions, 464 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:10,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:53:10,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-28 03:53:10,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:53:10,237 INFO L124 PetriNetUnfolderBase]: 230/663 cut-off events. [2024-11-28 03:53:10,237 INFO L125 PetriNetUnfolderBase]: For 2436/2531 co-relation queries the response was YES. [2024-11-28 03:53:10,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2568 conditions, 663 events. 230/663 cut-off events. For 2436/2531 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4014 event pairs, 27 based on Foata normal form. 59/701 useless extension candidates. Maximal degree in co-relation 2539. Up to 239 conditions per place. [2024-11-28 03:53:10,243 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 52 selfloop transitions, 6 changer transitions 0/83 dead transitions. [2024-11-28 03:53:10,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 83 transitions, 747 flow [2024-11-28 03:53:10,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:53:10,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:53:10,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 71 transitions. [2024-11-28 03:53:10,246 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5916666666666667 [2024-11-28 03:53:10,246 INFO L175 Difference]: Start difference. First operand has 67 places, 60 transitions, 464 flow. Second operand 4 states and 71 transitions. [2024-11-28 03:53:10,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 83 transitions, 747 flow [2024-11-28 03:53:10,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 83 transitions, 737 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 03:53:10,253 INFO L231 Difference]: Finished difference. Result has 67 places, 60 transitions, 470 flow [2024-11-28 03:53:10,254 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=470, PETRI_PLACES=67, PETRI_TRANSITIONS=60} [2024-11-28 03:53:10,255 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 38 predicate places. [2024-11-28 03:53:10,256 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 60 transitions, 470 flow [2024-11-28 03:53:10,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:10,256 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:53:10,256 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:53:10,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:53:10,256 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:53:10,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:53:10,257 INFO L85 PathProgramCache]: Analyzing trace with hash 2014453307, now seen corresponding path program 1 times [2024-11-28 03:53:10,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:53:10,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510441956] [2024-11-28 03:53:10,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:53:10,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:53:10,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:53:10,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:53:10,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:53:10,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510441956] [2024-11-28 03:53:10,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510441956] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:53:10,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127468422] [2024-11-28 03:53:10,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:53:10,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:53:10,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:53:10,393 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:53:10,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:53:10,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:53:10,562 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:53:10,563 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:53:10,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:53:10,606 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:53:10,676 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:53:10,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [127468422] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:53:10,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:53:10,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-28 03:53:10,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066270126] [2024-11-28 03:53:10,677 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:53:10,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:53:10,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:53:10,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:53:10,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:53:10,692 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-28 03:53:10,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 60 transitions, 470 flow. Second operand has 11 states, 11 states have (on average 14.0) internal successors, (154), 11 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:10,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:53:10,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-28 03:53:10,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:53:11,199 INFO L124 PetriNetUnfolderBase]: 343/1016 cut-off events. [2024-11-28 03:53:11,199 INFO L125 PetriNetUnfolderBase]: For 5465/5494 co-relation queries the response was YES. [2024-11-28 03:53:11,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4273 conditions, 1016 events. 343/1016 cut-off events. For 5465/5494 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6251 event pairs, 16 based on Foata normal form. 106/1116 useless extension candidates. Maximal degree in co-relation 4244. Up to 272 conditions per place. [2024-11-28 03:53:11,209 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 82 selfloop transitions, 71 changer transitions 0/165 dead transitions. [2024-11-28 03:53:11,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 165 transitions, 1637 flow [2024-11-28 03:53:11,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 03:53:11,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-28 03:53:11,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 399 transitions. [2024-11-28 03:53:11,212 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6045454545454545 [2024-11-28 03:53:11,212 INFO L175 Difference]: Start difference. First operand has 67 places, 60 transitions, 470 flow. Second operand 22 states and 399 transitions. [2024-11-28 03:53:11,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 165 transitions, 1637 flow [2024-11-28 03:53:11,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 165 transitions, 1604 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:53:11,224 INFO L231 Difference]: Finished difference. Result has 100 places, 109 transitions, 1301 flow [2024-11-28 03:53:11,224 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1301, PETRI_PLACES=100, PETRI_TRANSITIONS=109} [2024-11-28 03:53:11,225 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 71 predicate places. [2024-11-28 03:53:11,225 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 109 transitions, 1301 flow [2024-11-28 03:53:11,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 14.0) internal successors, (154), 11 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:11,225 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:53:11,226 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:53:11,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:53:11,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-28 03:53:11,426 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:53:11,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:53:11,427 INFO L85 PathProgramCache]: Analyzing trace with hash -194372346, now seen corresponding path program 1 times [2024-11-28 03:53:11,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:53:11,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085250745] [2024-11-28 03:53:11,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:53:11,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:53:11,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:53:11,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:53:11,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:53:11,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085250745] [2024-11-28 03:53:11,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085250745] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:53:11,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029734305] [2024-11-28 03:53:11,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:53:11,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:53:11,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:53:11,551 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:53:11,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:53:11,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:53:11,727 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:53:11,728 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:53:11,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:53:11,773 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:53:11,870 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:53:11,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029734305] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:53:11,870 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:53:11,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-11-28 03:53:11,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650583226] [2024-11-28 03:53:11,870 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:53:11,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:53:11,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:53:11,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:53:11,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:53:11,893 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-28 03:53:11,894 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 109 transitions, 1301 flow. Second operand has 14 states, 14 states have (on average 13.857142857142858) internal successors, (194), 14 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:11,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:53:11,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-28 03:53:11,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:53:12,955 INFO L124 PetriNetUnfolderBase]: 762/2297 cut-off events. [2024-11-28 03:53:12,955 INFO L125 PetriNetUnfolderBase]: For 25152/25275 co-relation queries the response was YES. [2024-11-28 03:53:12,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10695 conditions, 2297 events. 762/2297 cut-off events. For 25152/25275 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 17834 event pairs, 28 based on Foata normal form. 217/2506 useless extension candidates. Maximal degree in co-relation 10650. Up to 560 conditions per place. [2024-11-28 03:53:12,984 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 169 selfloop transitions, 165 changer transitions 0/346 dead transitions. [2024-11-28 03:53:12,985 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 346 transitions, 4293 flow [2024-11-28 03:53:12,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-28 03:53:12,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2024-11-28 03:53:12,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 626 transitions. [2024-11-28 03:53:12,990 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6323232323232323 [2024-11-28 03:53:12,990 INFO L175 Difference]: Start difference. First operand has 100 places, 109 transitions, 1301 flow. Second operand 33 states and 626 transitions. [2024-11-28 03:53:12,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 346 transitions, 4293 flow [2024-11-28 03:53:13,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 346 transitions, 3684 flow, removed 292 selfloop flow, removed 5 redundant places. [2024-11-28 03:53:13,053 INFO L231 Difference]: Finished difference. Result has 143 places, 219 transitions, 2907 flow [2024-11-28 03:53:13,054 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=1040, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=2907, PETRI_PLACES=143, PETRI_TRANSITIONS=219} [2024-11-28 03:53:13,054 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 114 predicate places. [2024-11-28 03:53:13,054 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 219 transitions, 2907 flow [2024-11-28 03:53:13,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 13.857142857142858) internal successors, (194), 14 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:13,055 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:53:13,055 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 03:53:13,065 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:53:13,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:53:13,260 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread_function_dataraceErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:53:13,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:53:13,261 INFO L85 PathProgramCache]: Analyzing trace with hash -275438768, now seen corresponding path program 1 times [2024-11-28 03:53:13,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:53:13,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538419298] [2024-11-28 03:53:13,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:53:13,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:53:13,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:53:13,397 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:53:13,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:53:13,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538419298] [2024-11-28 03:53:13,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538419298] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:53:13,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298033968] [2024-11-28 03:53:13,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:53:13,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:53:13,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:53:13,404 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:53:13,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:53:13,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:53:13,578 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:53:13,579 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:53:13,644 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:53:13,644 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:53:13,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298033968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:53:13,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:53:13,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-28 03:53:13,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232714980] [2024-11-28 03:53:13,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:53:13,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:53:13,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:53:13,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:53:13,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:53:13,669 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2024-11-28 03:53:13,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 219 transitions, 2907 flow. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:13,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:53:13,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2024-11-28 03:53:13,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:53:14,370 INFO L124 PetriNetUnfolderBase]: 781/2398 cut-off events. [2024-11-28 03:53:14,370 INFO L125 PetriNetUnfolderBase]: For 35324/35447 co-relation queries the response was YES. [2024-11-28 03:53:14,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12157 conditions, 2398 events. 781/2398 cut-off events. For 35324/35447 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 19235 event pairs, 82 based on Foata normal form. 116/2443 useless extension candidates. Maximal degree in co-relation 12095. Up to 783 conditions per place. [2024-11-28 03:53:14,403 INFO L140 encePairwiseOnDemand]: 26/30 looper letters, 205 selfloop transitions, 5 changer transitions 0/293 dead transitions. [2024-11-28 03:53:14,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 293 transitions, 4551 flow [2024-11-28 03:53:14,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:53:14,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:53:14,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 115 transitions. [2024-11-28 03:53:14,404 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2024-11-28 03:53:14,404 INFO L175 Difference]: Start difference. First operand has 143 places, 219 transitions, 2907 flow. Second operand 6 states and 115 transitions. [2024-11-28 03:53:14,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 293 transitions, 4551 flow [2024-11-28 03:53:14,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 293 transitions, 3654 flow, removed 396 selfloop flow, removed 12 redundant places. [2024-11-28 03:53:14,535 INFO L231 Difference]: Finished difference. Result has 135 places, 218 transitions, 2281 flow [2024-11-28 03:53:14,535 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=2271, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2281, PETRI_PLACES=135, PETRI_TRANSITIONS=218} [2024-11-28 03:53:14,537 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 106 predicate places. [2024-11-28 03:53:14,537 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 218 transitions, 2281 flow [2024-11-28 03:53:14,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:14,537 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:53:14,537 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-28 03:53:14,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 03:53:14,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:53:14,738 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread_function_dataraceErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:53:14,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:53:14,738 INFO L85 PathProgramCache]: Analyzing trace with hash 51333184, now seen corresponding path program 1 times [2024-11-28 03:53:14,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:53:14,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224949756] [2024-11-28 03:53:14,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:53:14,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:53:14,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:53:14,820 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:53:14,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:53:14,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224949756] [2024-11-28 03:53:14,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224949756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:53:14,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:53:14,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:53:14,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908436567] [2024-11-28 03:53:14,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:53:14,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:53:14,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:53:14,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:53:14,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:53:14,828 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-28 03:53:14,829 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 218 transitions, 2281 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:14,829 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:53:14,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-28 03:53:14,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:53:15,613 INFO L124 PetriNetUnfolderBase]: 866/2532 cut-off events. [2024-11-28 03:53:15,614 INFO L125 PetriNetUnfolderBase]: For 31048/31144 co-relation queries the response was YES. [2024-11-28 03:53:15,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11552 conditions, 2532 events. 866/2532 cut-off events. For 31048/31144 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 19764 event pairs, 144 based on Foata normal form. 115/2625 useless extension candidates. Maximal degree in co-relation 11492. Up to 931 conditions per place. [2024-11-28 03:53:15,653 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 190 selfloop transitions, 6 changer transitions 0/278 dead transitions. [2024-11-28 03:53:15,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 278 transitions, 3391 flow [2024-11-28 03:53:15,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:53:15,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:53:15,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 73 transitions. [2024-11-28 03:53:15,654 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6083333333333333 [2024-11-28 03:53:15,655 INFO L175 Difference]: Start difference. First operand has 135 places, 218 transitions, 2281 flow. Second operand 4 states and 73 transitions. [2024-11-28 03:53:15,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 278 transitions, 3391 flow [2024-11-28 03:53:15,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 278 transitions, 3382 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-28 03:53:15,776 INFO L231 Difference]: Finished difference. Result has 134 places, 218 transitions, 2288 flow [2024-11-28 03:53:15,777 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=2268, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=2288, PETRI_PLACES=134, PETRI_TRANSITIONS=218} [2024-11-28 03:53:15,778 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 105 predicate places. [2024-11-28 03:53:15,779 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 218 transitions, 2288 flow [2024-11-28 03:53:15,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:15,779 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:53:15,779 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:53:15,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:53:15,779 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:53:15,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:53:15,780 INFO L85 PathProgramCache]: Analyzing trace with hash 722422148, now seen corresponding path program 1 times [2024-11-28 03:53:15,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:53:15,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744657087] [2024-11-28 03:53:15,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:53:15,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:53:15,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:53:16,019 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:53:16,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:53:16,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744657087] [2024-11-28 03:53:16,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744657087] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:53:16,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139509981] [2024-11-28 03:53:16,020 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:53:16,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:53:16,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:53:16,022 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:53:16,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:53:16,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:53:16,234 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 03:53:16,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:53:16,317 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:53:16,317 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:53:16,501 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:53:16,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139509981] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:53:16,501 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:53:16,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-28 03:53:16,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113842610] [2024-11-28 03:53:16,503 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:53:16,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 03:53:16,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:53:16,506 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 03:53:16,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:53:16,535 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-28 03:53:16,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 218 transitions, 2288 flow. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:16,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:53:16,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-28 03:53:16,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:53:19,458 INFO L124 PetriNetUnfolderBase]: 1834/5367 cut-off events. [2024-11-28 03:53:19,459 INFO L125 PetriNetUnfolderBase]: For 139369/139445 co-relation queries the response was YES. [2024-11-28 03:53:19,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25710 conditions, 5367 events. 1834/5367 cut-off events. For 139369/139445 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 45789 event pairs, 18 based on Foata normal form. 520/5879 useless extension candidates. Maximal degree in co-relation 25651. Up to 1216 conditions per place. [2024-11-28 03:53:19,529 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 294 selfloop transitions, 415 changer transitions 0/720 dead transitions. [2024-11-28 03:53:19,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 720 transitions, 8906 flow [2024-11-28 03:53:19,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-28 03:53:19,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2024-11-28 03:53:19,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 1169 transitions. [2024-11-28 03:53:19,535 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6387978142076502 [2024-11-28 03:53:19,536 INFO L175 Difference]: Start difference. First operand has 134 places, 218 transitions, 2288 flow. Second operand 61 states and 1169 transitions. [2024-11-28 03:53:19,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 720 transitions, 8906 flow [2024-11-28 03:53:19,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 720 transitions, 8771 flow, removed 36 selfloop flow, removed 2 redundant places. [2024-11-28 03:53:19,751 INFO L231 Difference]: Finished difference. Result has 228 places, 478 transitions, 7302 flow [2024-11-28 03:53:19,751 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=2260, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=184, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=7302, PETRI_PLACES=228, PETRI_TRANSITIONS=478} [2024-11-28 03:53:19,752 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 199 predicate places. [2024-11-28 03:53:19,752 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 478 transitions, 7302 flow [2024-11-28 03:53:19,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:19,753 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:53:19,753 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-28 03:53:19,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 03:53:19,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:53:19,953 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:53:19,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:53:19,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1495150360, now seen corresponding path program 1 times [2024-11-28 03:53:19,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:53:19,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648924809] [2024-11-28 03:53:19,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:53:19,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:53:19,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:53:20,255 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:53:20,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:53:20,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648924809] [2024-11-28 03:53:20,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648924809] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:53:20,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551926507] [2024-11-28 03:53:20,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:53:20,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:53:20,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:53:20,258 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:53:20,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:53:20,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:53:20,446 INFO L256 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 03:53:20,448 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:53:20,546 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:53:20,546 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:53:20,878 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:53:20,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [551926507] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:53:20,878 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:53:20,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 28 [2024-11-28 03:53:20,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388733960] [2024-11-28 03:53:20,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:53:20,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-28 03:53:20,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:53:20,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-28 03:53:20,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=630, Unknown=0, NotChecked=0, Total=870 [2024-11-28 03:53:20,920 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-28 03:53:20,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 478 transitions, 7302 flow. Second operand has 30 states, 30 states have (on average 13.666666666666666) internal successors, (410), 30 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:20,921 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:53:20,921 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-28 03:53:20,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:53:30,650 INFO L124 PetriNetUnfolderBase]: 6251/18538 cut-off events. [2024-11-28 03:53:30,650 INFO L125 PetriNetUnfolderBase]: For 1657957/1658096 co-relation queries the response was YES. [2024-11-28 03:53:30,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102226 conditions, 18538 events. 6251/18538 cut-off events. For 1657957/1658096 co-relation queries the response was YES. Maximal size of possible extension queue 358. Compared 192028 event pairs, 24 based on Foata normal form. 1435/19964 useless extension candidates. Maximal degree in co-relation 102129. Up to 4760 conditions per place. [2024-11-28 03:53:31,146 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 742 selfloop transitions, 1334 changer transitions 0/2087 dead transitions. [2024-11-28 03:53:31,146 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 2087 transitions, 33370 flow [2024-11-28 03:53:31,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2024-11-28 03:53:31,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2024-11-28 03:53:31,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 2729 transitions. [2024-11-28 03:53:31,158 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6639902676399027 [2024-11-28 03:53:31,160 INFO L175 Difference]: Start difference. First operand has 228 places, 478 transitions, 7302 flow. Second operand 137 states and 2729 transitions. [2024-11-28 03:53:31,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 2087 transitions, 33370 flow [2024-11-28 03:53:33,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 2087 transitions, 27181 flow, removed 3065 selfloop flow, removed 9 redundant places. [2024-11-28 03:53:33,564 INFO L231 Difference]: Finished difference. Result has 440 places, 1445 transitions, 22547 flow [2024-11-28 03:53:33,565 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=5729, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=432, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=137, PETRI_FLOW=22547, PETRI_PLACES=440, PETRI_TRANSITIONS=1445} [2024-11-28 03:53:33,565 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 411 predicate places. [2024-11-28 03:53:33,565 INFO L471 AbstractCegarLoop]: Abstraction has has 440 places, 1445 transitions, 22547 flow [2024-11-28 03:53:33,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 13.666666666666666) internal successors, (410), 30 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:33,566 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:53:33,566 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:53:33,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 03:53:33,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:53:33,767 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:53:33,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:53:33,768 INFO L85 PathProgramCache]: Analyzing trace with hash 200061962, now seen corresponding path program 2 times [2024-11-28 03:53:33,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:53:33,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884465281] [2024-11-28 03:53:33,769 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:53:33,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:53:33,826 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:53:33,828 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:53:34,339 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 230 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:53:34,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:53:34,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884465281] [2024-11-28 03:53:34,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884465281] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:53:34,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081860389] [2024-11-28 03:53:34,340 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:53:34,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:53:34,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:53:34,342 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:53:34,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2769b2e9-e5f2-4269-a0d1-603e8bafdf8e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 03:53:34,544 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:53:34,545 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:53:34,546 INFO L256 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 03:53:34,549 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:53:34,680 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 230 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:53:34,680 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:53:35,129 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 230 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:53:35,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081860389] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:53:35,130 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:53:35,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 33 [2024-11-28 03:53:35,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922663065] [2024-11-28 03:53:35,130 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:53:35,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-28 03:53:35,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:53:35,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-28 03:53:35,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=433, Invalid=757, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 03:53:35,162 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-28 03:53:35,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 1445 transitions, 22547 flow. Second operand has 35 states, 35 states have (on average 13.914285714285715) internal successors, (487), 35 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:53:35,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:53:35,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-28 03:53:35,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:54:12,179 INFO L124 PetriNetUnfolderBase]: 19835/57295 cut-off events. [2024-11-28 03:54:12,179 INFO L125 PetriNetUnfolderBase]: For 16910556/16910697 co-relation queries the response was YES. [2024-11-28 03:54:13,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340913 conditions, 57295 events. 19835/57295 cut-off events. For 16910556/16910697 co-relation queries the response was YES. Maximal size of possible extension queue 1099. Compared 672622 event pairs, 518 based on Foata normal form. 2417/59666 useless extension candidates. Maximal degree in co-relation 340730. Up to 12570 conditions per place. [2024-11-28 03:54:14,171 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 924 selfloop transitions, 5760 changer transitions 0/6695 dead transitions. [2024-11-28 03:54:14,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 584 places, 6695 transitions, 116848 flow [2024-11-28 03:54:14,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2024-11-28 03:54:14,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2024-11-28 03:54:14,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 2733 transitions. [2024-11-28 03:54:14,181 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6282758620689655 [2024-11-28 03:54:14,181 INFO L175 Difference]: Start difference. First operand has 440 places, 1445 transitions, 22547 flow. Second operand 145 states and 2733 transitions. [2024-11-28 03:54:14,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 584 places, 6695 transitions, 116848 flow