./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_06-cond_racing1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27daec03-d652-4468-8e23-c4e8d04d13ac/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27daec03-d652-4468-8e23-c4e8d04d13ac/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27daec03-d652-4468-8e23-c4e8d04d13ac/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27daec03-d652-4468-8e23-c4e8d04d13ac/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_06-cond_racing1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27daec03-d652-4468-8e23-c4e8d04d13ac/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27daec03-d652-4468-8e23-c4e8d04d13ac/bin/uautomizer-verify-jihMAELWvX --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 830cb16a3cbc120e059f0ed7638e33ed20360a11f425952cf536aa3d659b86fc --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:45:14,437 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:45:14,538 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27daec03-d652-4468-8e23-c4e8d04d13ac/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 18:45:14,546 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:45:14,549 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:45:14,580 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:45:14,580 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:45:14,581 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:45:14,581 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:45:14,582 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:45:14,582 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:45:14,583 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:45:14,583 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:45:14,585 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:45:14,588 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:45:14,588 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:45:14,589 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:45:14,589 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:45:14,589 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:45:14,589 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:45:14,590 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:45:14,590 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:45:14,590 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:45:14,592 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:45:14,592 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:45:14,592 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 18:45:14,593 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:45:14,593 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:45:14,593 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:45:14,593 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:45:14,593 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:45:14,594 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:45:14,594 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:45:14,594 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:45:14,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:45:14,595 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:45:14,595 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:45:14,595 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:45:14,597 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:45:14,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:45:14,598 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:45:14,600 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:45:14,600 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:45:14,601 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:45:14,601 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27daec03-d652-4468-8e23-c4e8d04d13ac/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27daec03-d652-4468-8e23-c4e8d04d13ac/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 830cb16a3cbc120e059f0ed7638e33ed20360a11f425952cf536aa3d659b86fc [2024-11-08 18:45:14,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:45:14,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:45:14,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:45:14,914 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:45:14,914 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:45:14,916 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27daec03-d652-4468-8e23-c4e8d04d13ac/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_06-cond_racing1.i Unable to find full path for "g++" [2024-11-08 18:45:16,945 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:45:17,212 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:45:17,213 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27daec03-d652-4468-8e23-c4e8d04d13ac/sv-benchmarks/c/goblint-regression/28-race_reach_06-cond_racing1.i [2024-11-08 18:45:17,239 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27daec03-d652-4468-8e23-c4e8d04d13ac/bin/uautomizer-verify-jihMAELWvX/data/bb609e003/ec71fe924349406681f8102d207321ff/FLAG147a902ad [2024-11-08 18:45:17,532 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27daec03-d652-4468-8e23-c4e8d04d13ac/bin/uautomizer-verify-jihMAELWvX/data/bb609e003/ec71fe924349406681f8102d207321ff [2024-11-08 18:45:17,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:45:17,537 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:45:17,539 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:45:17,539 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:45:17,546 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:45:17,546 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:45:17" (1/1) ... [2024-11-08 18:45:17,548 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a40fabc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:45:17, skipping insertion in model container [2024-11-08 18:45:17,548 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:45:17" (1/1) ... [2024-11-08 18:45:17,603 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:45:18,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:45:18,221 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:45:18,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:45:18,343 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:45:18,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:45:18 WrapperNode [2024-11-08 18:45:18,344 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:45:18,345 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:45:18,346 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:45:18,346 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:45:18,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:45:18" (1/1) ... [2024-11-08 18:45:18,369 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:45:18" (1/1) ... [2024-11-08 18:45:18,407 INFO L138 Inliner]: procedures = 271, calls = 42, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 97 [2024-11-08 18:45:18,407 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:45:18,408 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:45:18,408 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:45:18,408 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:45:18,421 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:45:18" (1/1) ... [2024-11-08 18:45:18,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:45:18" (1/1) ... [2024-11-08 18:45:18,426 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:45:18" (1/1) ... [2024-11-08 18:45:18,460 INFO L175 MemorySlicer]: Split 19 memory accesses to 5 slices as follows [2, 5, 5, 5, 2]. 26 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 0, 1]. [2024-11-08 18:45:18,462 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:45:18" (1/1) ... [2024-11-08 18:45:18,462 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:45:18" (1/1) ... [2024-11-08 18:45:18,473 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:45:18" (1/1) ... [2024-11-08 18:45:18,481 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:45:18" (1/1) ... [2024-11-08 18:45:18,487 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:45:18" (1/1) ... [2024-11-08 18:45:18,491 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:45:18" (1/1) ... [2024-11-08 18:45:18,493 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:45:18,498 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:45:18,498 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:45:18,498 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:45:18,499 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:45:18" (1/1) ... [2024-11-08 18:45:18,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:45:18,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27daec03-d652-4468-8e23-c4e8d04d13ac/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:45:18,571 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27daec03-d652-4468-8e23-c4e8d04d13ac/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:45:18,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27daec03-d652-4468-8e23-c4e8d04d13ac/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:45:18,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 18:45:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 18:45:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 18:45:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 18:45:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 18:45:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 18:45:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 18:45:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 18:45:18,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 18:45:18,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 18:45:18,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 18:45:18,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 18:45:18,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 18:45:18,618 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 18:45:18,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:45:18,618 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 18:45:18,619 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 18:45:18,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:45:18,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 18:45:18,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 18:45:18,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 18:45:18,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 18:45:18,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:45:18,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:45:18,623 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 18:45:18,789 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:45:18,791 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:45:19,074 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 18:45:19,074 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:45:19,330 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:45:19,334 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-08 18:45:19,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:45:19 BoogieIcfgContainer [2024-11-08 18:45:19,335 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:45:19,337 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:45:19,337 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:45:19,341 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:45:19,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:45:17" (1/3) ... [2024-11-08 18:45:19,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d7adb19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:45:19, skipping insertion in model container [2024-11-08 18:45:19,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:45:18" (2/3) ... [2024-11-08 18:45:19,343 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d7adb19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:45:19, skipping insertion in model container [2024-11-08 18:45:19,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:45:19" (3/3) ... [2024-11-08 18:45:19,344 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_06-cond_racing1.i [2024-11-08 18:45:19,364 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:45:19,364 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-08 18:45:19,367 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 18:45:19,423 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-08 18:45:19,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 73 transitions, 153 flow [2024-11-08 18:45:19,511 INFO L124 PetriNetUnfolderBase]: 21/101 cut-off events. [2024-11-08 18:45:19,512 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 18:45:19,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 101 events. 21/101 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 289 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 64. Up to 6 conditions per place. [2024-11-08 18:45:19,517 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 73 transitions, 153 flow [2024-11-08 18:45:19,521 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 72 transitions, 151 flow [2024-11-08 18:45:19,530 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:45:19,536 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;@48f1ba16, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:45:19,536 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-08 18:45:19,542 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:45:19,543 INFO L124 PetriNetUnfolderBase]: 3/16 cut-off events. [2024-11-08 18:45:19,543 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:45:19,543 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:45:19,544 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 18:45:19,544 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)] === [2024-11-08 18:45:19,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:45:19,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1555259329, now seen corresponding path program 1 times [2024-11-08 18:45:19,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:45:19,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445653197] [2024-11-08 18:45:19,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:45:19,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:45:19,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:45:19,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:45:19,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:45:19,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445653197] [2024-11-08 18:45:19,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445653197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:45:19,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:45:19,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:45:19,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237748478] [2024-11-08 18:45:19,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:45:19,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:45:19,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:45:20,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:45:20,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:45:20,065 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 73 [2024-11-08 18:45:20,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 72 transitions, 151 flow. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 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) [2024-11-08 18:45:20,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:45:20,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 73 [2024-11-08 18:45:20,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:45:20,369 INFO L124 PetriNetUnfolderBase]: 197/557 cut-off events. [2024-11-08 18:45:20,369 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 18:45:20,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 913 conditions, 557 events. 197/557 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2913 event pairs, 68 based on Foata normal form. 81/577 useless extension candidates. Maximal degree in co-relation 888. Up to 314 conditions per place. [2024-11-08 18:45:20,377 INFO L140 encePairwiseOnDemand]: 58/73 looper letters, 49 selfloop transitions, 3 changer transitions 0/85 dead transitions. [2024-11-08 18:45:20,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 85 transitions, 281 flow [2024-11-08 18:45:20,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:45:20,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:45:20,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 208 transitions. [2024-11-08 18:45:20,393 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7123287671232876 [2024-11-08 18:45:20,395 INFO L175 Difference]: Start difference. First operand has 62 places, 72 transitions, 151 flow. Second operand 4 states and 208 transitions. [2024-11-08 18:45:20,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 85 transitions, 281 flow [2024-11-08 18:45:20,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 85 transitions, 281 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:45:20,403 INFO L231 Difference]: Finished difference. Result has 64 places, 62 transitions, 143 flow [2024-11-08 18:45:20,405 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=143, PETRI_PLACES=64, PETRI_TRANSITIONS=62} [2024-11-08 18:45:20,409 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 2 predicate places. [2024-11-08 18:45:20,409 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 62 transitions, 143 flow [2024-11-08 18:45:20,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 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) [2024-11-08 18:45:20,410 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:45:20,410 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 18:45:20,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:45:20,410 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 18:45:20,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:45:20,411 INFO L85 PathProgramCache]: Analyzing trace with hash -265109070, now seen corresponding path program 1 times [2024-11-08 18:45:20,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:45:20,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651499670] [2024-11-08 18:45:20,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:45:20,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:45:20,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:45:20,443 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:45:20,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:45:20,490 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:45:20,491 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:45:20,493 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-11-08 18:45:20,495 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-08 18:45:20,496 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-08 18:45:20,496 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-08 18:45:20,496 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-11-08 18:45:20,496 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-08 18:45:20,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-11-08 18:45:20,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-11-08 18:45:20,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-11-08 18:45:20,499 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-08 18:45:20,499 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-08 18:45:20,499 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-08 18:45:20,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-08 18:45:20,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:45:20,503 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-08 18:45:20,507 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 18:45:20,507 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 18:45:20,541 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-08 18:45:20,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 106 transitions, 228 flow [2024-11-08 18:45:20,587 INFO L124 PetriNetUnfolderBase]: 37/184 cut-off events. [2024-11-08 18:45:20,587 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 18:45:20,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 184 events. 37/184 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 627 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 109. Up to 9 conditions per place. [2024-11-08 18:45:20,592 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 106 transitions, 228 flow [2024-11-08 18:45:20,595 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 106 transitions, 228 flow [2024-11-08 18:45:20,596 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:45:20,597 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;@48f1ba16, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:45:20,597 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-08 18:45:20,601 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:45:20,601 INFO L124 PetriNetUnfolderBase]: 3/16 cut-off events. [2024-11-08 18:45:20,601 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:45:20,601 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:45:20,602 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 18:45:20,602 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-08 18:45:20,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:45:20,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1580616798, now seen corresponding path program 1 times [2024-11-08 18:45:20,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:45:20,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685381105] [2024-11-08 18:45:20,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:45:20,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:45:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:45:20,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:45:20,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:45:20,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685381105] [2024-11-08 18:45:20,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685381105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:45:20,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:45:20,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:45:20,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528363765] [2024-11-08 18:45:20,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:45:20,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:45:20,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:45:20,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:45:20,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:45:20,754 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 106 [2024-11-08 18:45:20,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 106 transitions, 228 flow. Second operand has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 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) [2024-11-08 18:45:20,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:45:20,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 106 [2024-11-08 18:45:20,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:45:22,436 INFO L124 PetriNetUnfolderBase]: 5127/10760 cut-off events. [2024-11-08 18:45:22,437 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-11-08 18:45:22,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18420 conditions, 10760 events. 5127/10760 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 336. Compared 92698 event pairs, 2084 based on Foata normal form. 1800/11531 useless extension candidates. Maximal degree in co-relation 1468. Up to 7556 conditions per place. [2024-11-08 18:45:22,529 INFO L140 encePairwiseOnDemand]: 85/106 looper letters, 67 selfloop transitions, 3 changer transitions 0/117 dead transitions. [2024-11-08 18:45:22,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 117 transitions, 390 flow [2024-11-08 18:45:22,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:45:22,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:45:22,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 288 transitions. [2024-11-08 18:45:22,535 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6792452830188679 [2024-11-08 18:45:22,538 INFO L175 Difference]: Start difference. First operand has 90 places, 106 transitions, 228 flow. Second operand 4 states and 288 transitions. [2024-11-08 18:45:22,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 117 transitions, 390 flow [2024-11-08 18:45:22,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 117 transitions, 390 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:45:22,544 INFO L231 Difference]: Finished difference. Result has 95 places, 94 transitions, 226 flow [2024-11-08 18:45:22,544 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=226, PETRI_PLACES=95, PETRI_TRANSITIONS=94} [2024-11-08 18:45:22,545 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 5 predicate places. [2024-11-08 18:45:22,546 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 94 transitions, 226 flow [2024-11-08 18:45:22,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 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) [2024-11-08 18:45:22,547 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:45:22,547 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:45:22,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:45:22,548 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-08 18:45:22,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:45:22,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1995003947, now seen corresponding path program 1 times [2024-11-08 18:45:22,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:45:22,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444278048] [2024-11-08 18:45:22,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:45:22,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:45:22,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:45:22,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:45:22,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:45:22,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444278048] [2024-11-08 18:45:22,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444278048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:45:22,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:45:22,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:45:22,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588133441] [2024-11-08 18:45:22,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:45:22,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:45:22,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:45:22,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:45:22,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:45:22,709 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 106 [2024-11-08 18:45:22,709 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 94 transitions, 226 flow. Second operand has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 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) [2024-11-08 18:45:22,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:45:22,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 106 [2024-11-08 18:45:22,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:45:24,679 INFO L124 PetriNetUnfolderBase]: 6559/13675 cut-off events. [2024-11-08 18:45:24,679 INFO L125 PetriNetUnfolderBase]: For 286/619 co-relation queries the response was YES. [2024-11-08 18:45:24,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23646 conditions, 13675 events. 6559/13675 cut-off events. For 286/619 co-relation queries the response was YES. Maximal size of possible extension queue 445. Compared 121188 event pairs, 1497 based on Foata normal form. 234/12884 useless extension candidates. Maximal degree in co-relation 23544. Up to 6468 conditions per place. [2024-11-08 18:45:24,784 INFO L140 encePairwiseOnDemand]: 97/106 looper letters, 122 selfloop transitions, 12 changer transitions 0/185 dead transitions. [2024-11-08 18:45:24,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 185 transitions, 710 flow [2024-11-08 18:45:24,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:45:24,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 18:45:24,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 385 transitions. [2024-11-08 18:45:24,788 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7264150943396226 [2024-11-08 18:45:24,788 INFO L175 Difference]: Start difference. First operand has 95 places, 94 transitions, 226 flow. Second operand 5 states and 385 transitions. [2024-11-08 18:45:24,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 185 transitions, 710 flow [2024-11-08 18:45:24,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 185 transitions, 706 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:45:24,795 INFO L231 Difference]: Finished difference. Result has 102 places, 105 transitions, 318 flow [2024-11-08 18:45:24,796 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=318, PETRI_PLACES=102, PETRI_TRANSITIONS=105} [2024-11-08 18:45:24,797 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 12 predicate places. [2024-11-08 18:45:24,797 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 105 transitions, 318 flow [2024-11-08 18:45:24,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 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) [2024-11-08 18:45:24,798 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:45:24,798 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 18:45:24,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:45:24,799 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-08 18:45:24,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:45:24,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1454582714, now seen corresponding path program 1 times [2024-11-08 18:45:24,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:45:24,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131684169] [2024-11-08 18:45:24,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:45:24,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:45:24,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:45:24,951 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:45:24,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:45:24,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131684169] [2024-11-08 18:45:24,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131684169] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:45:24,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021870370] [2024-11-08 18:45:24,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:45:24,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:45:24,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27daec03-d652-4468-8e23-c4e8d04d13ac/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:45:24,957 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27daec03-d652-4468-8e23-c4e8d04d13ac/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:45:24,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27daec03-d652-4468-8e23-c4e8d04d13ac/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:45:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:45:25,068 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:45:25,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:45:25,143 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:45:25,144 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:45:25,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021870370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:45:25,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:45:25,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-08 18:45:25,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680394116] [2024-11-08 18:45:25,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:45:25,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:45:25,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:45:25,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:45:25,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:45:25,168 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 106 [2024-11-08 18:45:25,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 105 transitions, 318 flow. Second operand has 6 states, 6 states have (on average 48.5) internal successors, (291), 6 states have internal predecessors, (291), 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) [2024-11-08 18:45:25,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:45:25,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 106 [2024-11-08 18:45:25,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:45:27,080 INFO L124 PetriNetUnfolderBase]: 6422/13835 cut-off events. [2024-11-08 18:45:27,081 INFO L125 PetriNetUnfolderBase]: For 3781/3791 co-relation queries the response was YES. [2024-11-08 18:45:27,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26782 conditions, 13835 events. 6422/13835 cut-off events. For 3781/3791 co-relation queries the response was YES. Maximal size of possible extension queue 413. Compared 124303 event pairs, 644 based on Foata normal form. 160/12582 useless extension candidates. Maximal degree in co-relation 23109. Up to 6553 conditions per place. [2024-11-08 18:45:27,176 INFO L140 encePairwiseOnDemand]: 101/106 looper letters, 128 selfloop transitions, 6 changer transitions 0/181 dead transitions. [2024-11-08 18:45:27,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 181 transitions, 820 flow [2024-11-08 18:45:27,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:45:27,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:45:27,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 396 transitions. [2024-11-08 18:45:27,179 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6226415094339622 [2024-11-08 18:45:27,179 INFO L175 Difference]: Start difference. First operand has 102 places, 105 transitions, 318 flow. Second operand 6 states and 396 transitions. [2024-11-08 18:45:27,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 181 transitions, 820 flow [2024-11-08 18:45:27,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 181 transitions, 820 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:45:27,197 INFO L231 Difference]: Finished difference. Result has 106 places, 104 transitions, 326 flow [2024-11-08 18:45:27,198 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=326, PETRI_PLACES=106, PETRI_TRANSITIONS=104} [2024-11-08 18:45:27,199 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 16 predicate places. [2024-11-08 18:45:27,200 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 104 transitions, 326 flow [2024-11-08 18:45:27,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.5) internal successors, (291), 6 states have internal predecessors, (291), 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) [2024-11-08 18:45:27,200 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:45:27,200 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-08 18:45:27,222 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27daec03-d652-4468-8e23-c4e8d04d13ac/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:45:27,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27daec03-d652-4468-8e23-c4e8d04d13ac/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:45:27,402 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-08 18:45:27,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:45:27,402 INFO L85 PathProgramCache]: Analyzing trace with hash -2142390663, now seen corresponding path program 1 times [2024-11-08 18:45:27,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:45:27,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553442192] [2024-11-08 18:45:27,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:45:27,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:45:27,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:45:27,453 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 18:45:27,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:45:27,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553442192] [2024-11-08 18:45:27,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553442192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:45:27,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:45:27,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:45:27,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368947555] [2024-11-08 18:45:27,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:45:27,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:45:27,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:45:27,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:45:27,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:45:27,474 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 106 [2024-11-08 18:45:27,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 104 transitions, 326 flow. Second operand has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 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) [2024-11-08 18:45:27,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:45:27,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 106 [2024-11-08 18:45:27,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:45:29,275 INFO L124 PetriNetUnfolderBase]: 6281/13594 cut-off events. [2024-11-08 18:45:29,275 INFO L125 PetriNetUnfolderBase]: For 4473/4479 co-relation queries the response was YES. [2024-11-08 18:45:29,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26595 conditions, 13594 events. 6281/13594 cut-off events. For 4473/4479 co-relation queries the response was YES. Maximal size of possible extension queue 396. Compared 121653 event pairs, 764 based on Foata normal form. 322/12664 useless extension candidates. Maximal degree in co-relation 22901. Up to 7524 conditions per place. [2024-11-08 18:45:29,358 INFO L140 encePairwiseOnDemand]: 100/106 looper letters, 105 selfloop transitions, 6 changer transitions 0/157 dead transitions. [2024-11-08 18:45:29,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 157 transitions, 714 flow [2024-11-08 18:45:29,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:45:29,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:45:29,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 274 transitions. [2024-11-08 18:45:29,360 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6462264150943396 [2024-11-08 18:45:29,360 INFO L175 Difference]: Start difference. First operand has 106 places, 104 transitions, 326 flow. Second operand 4 states and 274 transitions. [2024-11-08 18:45:29,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 157 transitions, 714 flow [2024-11-08 18:45:29,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 157 transitions, 704 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-08 18:45:29,372 INFO L231 Difference]: Finished difference. Result has 105 places, 103 transitions, 328 flow [2024-11-08 18:45:29,373 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=328, PETRI_PLACES=105, PETRI_TRANSITIONS=103} [2024-11-08 18:45:29,374 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 15 predicate places. [2024-11-08 18:45:29,374 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 103 transitions, 328 flow [2024-11-08 18:45:29,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 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) [2024-11-08 18:45:29,375 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:45:29,375 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1] [2024-11-08 18:45:29,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:45:29,375 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-08 18:45:29,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:45:29,376 INFO L85 PathProgramCache]: Analyzing trace with hash -745708328, now seen corresponding path program 1 times [2024-11-08 18:45:29,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:45:29,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473954732] [2024-11-08 18:45:29,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:45:29,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:45:29,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:45:29,394 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:45:29,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:45:29,421 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:45:29,421 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:45:29,422 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-11-08 18:45:29,422 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2024-11-08 18:45:29,422 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2024-11-08 18:45:29,422 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2024-11-08 18:45:29,422 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2024-11-08 18:45:29,422 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2024-11-08 18:45:29,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2024-11-08 18:45:29,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2024-11-08 18:45:29,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2024-11-08 18:45:29,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2024-11-08 18:45:29,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2024-11-08 18:45:29,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2024-11-08 18:45:29,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2024-11-08 18:45:29,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2024-11-08 18:45:29,427 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2024-11-08 18:45:29,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2024-11-08 18:45:29,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2024-11-08 18:45:29,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 18:45:29,429 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-08 18:45:29,430 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 18:45:29,430 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-08 18:45:29,460 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-08 18:45:29,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 139 transitions, 305 flow [2024-11-08 18:45:29,495 INFO L124 PetriNetUnfolderBase]: 58/292 cut-off events. [2024-11-08 18:45:29,495 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-08 18:45:29,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 292 events. 58/292 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1105 event pairs, 1 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 199. Up to 16 conditions per place. [2024-11-08 18:45:29,497 INFO L82 GeneralOperation]: Start removeDead. Operand has 118 places, 139 transitions, 305 flow [2024-11-08 18:45:29,500 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 139 transitions, 305 flow [2024-11-08 18:45:29,502 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:45:29,502 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;@48f1ba16, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:45:29,505 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-08 18:45:29,508 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:45:29,509 INFO L124 PetriNetUnfolderBase]: 3/17 cut-off events. [2024-11-08 18:45:29,509 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:45:29,509 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:45:29,509 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 18:45:29,509 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-08 18:45:29,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:45:29,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1397779677, now seen corresponding path program 1 times [2024-11-08 18:45:29,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:45:29,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633091616] [2024-11-08 18:45:29,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:45:29,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:45:29,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:45:29,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:45:29,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:45:29,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633091616] [2024-11-08 18:45:29,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633091616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:45:29,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:45:29,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:45:29,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143615673] [2024-11-08 18:45:29,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:45:29,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:45:29,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:45:29,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:45:29,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:45:29,587 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 139 [2024-11-08 18:45:29,588 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 139 transitions, 305 flow. Second operand has 4 states, 4 states have (on average 62.25) internal successors, (249), 4 states have internal predecessors, (249), 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) [2024-11-08 18:45:29,588 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:45:29,588 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 139 [2024-11-08 18:45:29,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:45:45,835 INFO L124 PetriNetUnfolderBase]: 94079/166754 cut-off events. [2024-11-08 18:45:45,835 INFO L125 PetriNetUnfolderBase]: For 1959/1959 co-relation queries the response was YES. [2024-11-08 18:45:46,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294268 conditions, 166754 events. 94079/166754 cut-off events. For 1959/1959 co-relation queries the response was YES. Maximal size of possible extension queue 3806. Compared 1753407 event pairs, 55768 based on Foata normal form. 33313/187873 useless extension candidates. Maximal degree in co-relation 19205. Up to 126352 conditions per place. [2024-11-08 18:45:47,097 INFO L140 encePairwiseOnDemand]: 112/139 looper letters, 80 selfloop transitions, 3 changer transitions 0/144 dead transitions. [2024-11-08 18:45:47,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 144 transitions, 481 flow [2024-11-08 18:45:47,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:45:47,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:45:47,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 363 transitions. [2024-11-08 18:45:47,100 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6528776978417267 [2024-11-08 18:45:47,100 INFO L175 Difference]: Start difference. First operand has 118 places, 139 transitions, 305 flow. Second operand 4 states and 363 transitions. [2024-11-08 18:45:47,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 144 transitions, 481 flow [2024-11-08 18:45:47,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 144 transitions, 481 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:45:47,106 INFO L231 Difference]: Finished difference. Result has 123 places, 121 transitions, 291 flow [2024-11-08 18:45:47,106 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=291, PETRI_PLACES=123, PETRI_TRANSITIONS=121} [2024-11-08 18:45:47,107 INFO L277 CegarLoopForPetriNet]: 118 programPoint places, 5 predicate places. [2024-11-08 18:45:47,107 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 121 transitions, 291 flow [2024-11-08 18:45:47,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 4 states have internal predecessors, (249), 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) [2024-11-08 18:45:47,108 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:45:47,108 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:45:47,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:45:47,109 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-08 18:45:47,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:45:47,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1829088639, now seen corresponding path program 1 times [2024-11-08 18:45:47,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:45:47,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126831132] [2024-11-08 18:45:47,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:45:47,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:45:47,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:45:47,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:45:47,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:45:47,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126831132] [2024-11-08 18:45:47,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126831132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:45:47,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:45:47,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:45:47,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002030766] [2024-11-08 18:45:47,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:45:47,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:45:47,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:45:47,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:45:47,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:45:47,168 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 139 [2024-11-08 18:45:47,168 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 121 transitions, 291 flow. Second operand has 4 states, 4 states have (on average 65.75) internal successors, (263), 4 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) [2024-11-08 18:45:47,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:45:47,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 139 [2024-11-08 18:45:47,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand