./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c --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_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/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_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/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_d276a472-9bed-474c-859e-f0b969befa6e/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 dbd0a32f8466e9a1ac86b6dfec2b7453fe6f40d8d953742d93d3d05c5ad7b7af --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:57:54,579 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:57:54,674 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 16:57:54,681 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:57:54,684 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:57:54,720 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:57:54,722 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:57:54,722 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:57:54,723 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:57:54,725 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:57:54,726 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:57:54,727 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:57:54,727 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:57:54,728 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:57:54,732 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:57:54,733 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:57:54,733 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:57:54,733 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:57:54,734 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:57:54,734 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:57:54,734 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:57:54,735 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:57:54,736 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:57:54,738 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:57:54,739 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:57:54,739 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 16:57:54,739 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 16:57:54,740 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:57:54,740 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:57:54,741 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:57:54,741 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:57:54,741 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:57:54,742 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:57:54,742 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:57:54,742 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:57:54,743 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:57:54,743 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:57:54,744 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:57:54,745 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:57:54,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:57:54,746 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:57:54,748 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:57:54,748 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:57:54,748 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:57:54,749 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_d276a472-9bed-474c-859e-f0b969befa6e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbd0a32f8466e9a1ac86b6dfec2b7453fe6f40d8d953742d93d3d05c5ad7b7af [2024-11-08 16:57:55,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:57:55,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:57:55,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:57:55,105 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:57:55,106 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:57:55,107 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c Unable to find full path for "g++" [2024-11-08 16:57:57,093 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:57:57,283 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:57:57,284 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c [2024-11-08 16:57:57,294 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/data/4949c78a5/b05484494ff54a829709df53b510dea2/FLAGcd83f2be3 [2024-11-08 16:57:57,310 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/data/4949c78a5/b05484494ff54a829709df53b510dea2 [2024-11-08 16:57:57,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:57:57,314 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:57:57,316 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:57:57,316 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:57:57,323 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:57:57,324 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:57:57" (1/1) ... [2024-11-08 16:57:57,325 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c36c5e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:57, skipping insertion in model container [2024-11-08 16:57:57,326 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:57:57" (1/1) ... [2024-11-08 16:57:57,363 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:57:57,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:57:57,611 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:57:57,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:57:57,658 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:57:57,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:57 WrapperNode [2024-11-08 16:57:57,658 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:57:57,660 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:57:57,660 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:57:57,660 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:57:57,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:57" (1/1) ... [2024-11-08 16:57:57,681 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:57" (1/1) ... [2024-11-08 16:57:57,706 INFO L138 Inliner]: procedures = 23, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 91 [2024-11-08 16:57:57,707 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:57:57,708 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:57:57,711 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:57:57,712 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:57:57,724 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:57" (1/1) ... [2024-11-08 16:57:57,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:57" (1/1) ... [2024-11-08 16:57:57,727 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:57" (1/1) ... [2024-11-08 16:57:57,746 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-08 16:57:57,747 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:57" (1/1) ... [2024-11-08 16:57:57,747 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:57" (1/1) ... [2024-11-08 16:57:57,755 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:57" (1/1) ... [2024-11-08 16:57:57,760 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:57" (1/1) ... [2024-11-08 16:57:57,762 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:57" (1/1) ... [2024-11-08 16:57:57,763 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:57" (1/1) ... [2024-11-08 16:57:57,766 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:57:57,770 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:57:57,771 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:57:57,771 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:57:57,772 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:57" (1/1) ... [2024-11-08 16:57:57,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:57:57,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:57:57,805 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:57:57,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:57:57,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:57:57,844 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-08 16:57:57,844 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-08 16:57:57,844 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-08 16:57:57,845 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-08 16:57:57,845 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-08 16:57:57,845 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-08 16:57:57,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:57:57,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 16:57:57,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 16:57:57,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 16:57:57,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-08 16:57:57,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-08 16:57:57,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 16:57:57,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:57:57,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:57:57,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 16:57:57,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 16:57:57,849 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 16:57:57,974 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:57:57,977 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:57:58,354 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 16:57:58,355 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:57:58,581 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:57:58,583 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 16:57:58,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:57:58 BoogieIcfgContainer [2024-11-08 16:57:58,584 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:57:58,588 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:57:58,588 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:57:58,593 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:57:58,593 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:57:57" (1/3) ... [2024-11-08 16:57:58,595 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d76e8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:57:58, skipping insertion in model container [2024-11-08 16:57:58,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:57" (2/3) ... [2024-11-08 16:57:58,596 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d76e8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:57:58, skipping insertion in model container [2024-11-08 16:57:58,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:57:58" (3/3) ... [2024-11-08 16:57:58,599 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-min-le-max.wvr.c [2024-11-08 16:57:58,619 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:57:58,619 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-08 16:57:58,620 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 16:57:58,694 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-08 16:57:58,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 50 transitions, 121 flow [2024-11-08 16:57:58,786 INFO L124 PetriNetUnfolderBase]: 6/47 cut-off events. [2024-11-08 16:57:58,786 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-08 16:57:58,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 47 events. 6/47 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 104 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2024-11-08 16:57:58,792 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 50 transitions, 121 flow [2024-11-08 16:57:58,795 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 44 transitions, 100 flow [2024-11-08 16:57:58,812 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:57:58,820 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;@231a606, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:57:58,821 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-08 16:57:58,826 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:57:58,826 INFO L124 PetriNetUnfolderBase]: 1/7 cut-off events. [2024-11-08 16:57:58,826 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:57:58,826 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:57:58,827 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-08 16:57:58,828 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 16:57:58,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:57:58,835 INFO L85 PathProgramCache]: Analyzing trace with hash 12977108, now seen corresponding path program 1 times [2024-11-08 16:57:58,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:57:58,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253955478] [2024-11-08 16:57:58,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:57:58,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:57:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:59,140 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 16:57:59,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:57:59,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253955478] [2024-11-08 16:57:59,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253955478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:57:59,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:57:59,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:57:59,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915984946] [2024-11-08 16:57:59,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:57:59,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:57:59,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:57:59,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:57:59,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:57:59,234 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 50 [2024-11-08 16:57:59,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 44 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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 16:57:59,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:57:59,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 50 [2024-11-08 16:57:59,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:57:59,530 INFO L124 PetriNetUnfolderBase]: 222/414 cut-off events. [2024-11-08 16:57:59,530 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-08 16:57:59,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 803 conditions, 414 events. 222/414 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1981 event pairs, 161 based on Foata normal form. 1/352 useless extension candidates. Maximal degree in co-relation 720. Up to 333 conditions per place. [2024-11-08 16:57:59,544 INFO L140 encePairwiseOnDemand]: 44/50 looper letters, 21 selfloop transitions, 4 changer transitions 0/47 dead transitions. [2024-11-08 16:57:59,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 47 transitions, 156 flow [2024-11-08 16:57:59,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:57:59,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:57:59,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 127 transitions. [2024-11-08 16:57:59,566 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.635 [2024-11-08 16:57:59,568 INFO L175 Difference]: Start difference. First operand has 48 places, 44 transitions, 100 flow. Second operand 4 states and 127 transitions. [2024-11-08 16:57:59,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 47 transitions, 156 flow [2024-11-08 16:57:59,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 47 transitions, 150 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-08 16:57:59,581 INFO L231 Difference]: Finished difference. Result has 49 places, 47 transitions, 123 flow [2024-11-08 16:57:59,586 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=123, PETRI_PLACES=49, PETRI_TRANSITIONS=47} [2024-11-08 16:57:59,590 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 1 predicate places. [2024-11-08 16:57:59,591 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 47 transitions, 123 flow [2024-11-08 16:57:59,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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 16:57:59,591 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:57:59,591 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-08 16:57:59,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:57:59,595 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 16:57:59,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:57:59,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1685918954, now seen corresponding path program 1 times [2024-11-08 16:57:59,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:57:59,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764109522] [2024-11-08 16:57:59,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:57:59,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:57:59,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:59,839 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:57:59,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:57:59,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764109522] [2024-11-08 16:57:59,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764109522] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:57:59,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566273425] [2024-11-08 16:57:59,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:57:59,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:57:59,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:57:59,843 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:57:59,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:57:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:59,948 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 16:57:59,956 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:58:00,018 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:00,018 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:58:00,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566273425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:00,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:58:00,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-08 16:58:00,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832701101] [2024-11-08 16:58:00,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:00,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:58:00,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:00,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:58:00,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:58:00,073 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 50 [2024-11-08 16:58:00,073 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 47 transitions, 123 flow. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 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 16:58:00,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:58:00,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 50 [2024-11-08 16:58:00,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:58:00,285 INFO L124 PetriNetUnfolderBase]: 222/413 cut-off events. [2024-11-08 16:58:00,286 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-08 16:58:00,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 803 conditions, 413 events. 222/413 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1971 event pairs, 161 based on Foata normal form. 1/351 useless extension candidates. Maximal degree in co-relation 773. Up to 328 conditions per place. [2024-11-08 16:58:00,292 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 17 selfloop transitions, 7 changer transitions 0/46 dead transitions. [2024-11-08 16:58:00,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 46 transitions, 167 flow [2024-11-08 16:58:00,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:58:00,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:58:00,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 175 transitions. [2024-11-08 16:58:00,295 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2024-11-08 16:58:00,296 INFO L175 Difference]: Start difference. First operand has 49 places, 47 transitions, 123 flow. Second operand 6 states and 175 transitions. [2024-11-08 16:58:00,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 46 transitions, 167 flow [2024-11-08 16:58:00,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 46 transitions, 164 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 16:58:00,298 INFO L231 Difference]: Finished difference. Result has 52 places, 46 transitions, 130 flow [2024-11-08 16:58:00,299 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=130, PETRI_PLACES=52, PETRI_TRANSITIONS=46} [2024-11-08 16:58:00,300 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 4 predicate places. [2024-11-08 16:58:00,300 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 46 transitions, 130 flow [2024-11-08 16:58:00,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 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 16:58:00,301 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:58:00,301 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-08 16:58:00,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 16:58:00,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:00,506 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 16:58:00,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:00,507 INFO L85 PathProgramCache]: Analyzing trace with hash 723880442, now seen corresponding path program 1 times [2024-11-08 16:58:00,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:00,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436022274] [2024-11-08 16:58:00,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:00,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:00,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:00,666 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:00,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:00,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436022274] [2024-11-08 16:58:00,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436022274] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:58:00,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269251989] [2024-11-08 16:58:00,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:00,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:00,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:58:00,670 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:58:00,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 16:58:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:00,764 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 16:58:00,766 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:58:00,807 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:00,807 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:58:00,873 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:00,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269251989] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:58:00,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:58:00,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-08 16:58:00,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491660601] [2024-11-08 16:58:00,874 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:58:00,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 16:58:00,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:00,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 16:58:00,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:58:00,948 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 50 [2024-11-08 16:58:00,949 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 46 transitions, 130 flow. Second operand has 12 states, 12 states have (on average 26.083333333333332) internal successors, (313), 12 states have internal predecessors, (313), 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 16:58:00,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:58:00,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 50 [2024-11-08 16:58:00,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:58:01,187 INFO L124 PetriNetUnfolderBase]: 228/434 cut-off events. [2024-11-08 16:58:01,187 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2024-11-08 16:58:01,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 856 conditions, 434 events. 228/434 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2099 event pairs, 161 based on Foata normal form. 3/372 useless extension candidates. Maximal degree in co-relation 774. Up to 335 conditions per place. [2024-11-08 16:58:01,192 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 20 selfloop transitions, 13 changer transitions 0/55 dead transitions. [2024-11-08 16:58:01,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 55 transitions, 250 flow [2024-11-08 16:58:01,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 16:58:01,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-08 16:58:01,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 286 transitions. [2024-11-08 16:58:01,196 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.572 [2024-11-08 16:58:01,196 INFO L175 Difference]: Start difference. First operand has 52 places, 46 transitions, 130 flow. Second operand 10 states and 286 transitions. [2024-11-08 16:58:01,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 55 transitions, 250 flow [2024-11-08 16:58:01,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 55 transitions, 220 flow, removed 8 selfloop flow, removed 4 redundant places. [2024-11-08 16:58:01,199 INFO L231 Difference]: Finished difference. Result has 60 places, 55 transitions, 198 flow [2024-11-08 16:58:01,199 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=198, PETRI_PLACES=60, PETRI_TRANSITIONS=55} [2024-11-08 16:58:01,200 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 12 predicate places. [2024-11-08 16:58:01,200 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 55 transitions, 198 flow [2024-11-08 16:58:01,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 26.083333333333332) internal successors, (313), 12 states have internal predecessors, (313), 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 16:58:01,201 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:58:01,201 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:58:01,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 16:58:01,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-08 16:58:01,402 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 16:58:01,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:01,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1786127457, now seen corresponding path program 1 times [2024-11-08 16:58:01,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:01,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650757651] [2024-11-08 16:58:01,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:01,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:01,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:01,550 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 16:58:01,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:01,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650757651] [2024-11-08 16:58:01,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650757651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:01,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:58:01,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:58:01,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232430114] [2024-11-08 16:58:01,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:01,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:58:01,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:01,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:58:01,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:58:01,576 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 50 [2024-11-08 16:58:01,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 55 transitions, 198 flow. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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 16:58:01,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:58:01,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 50 [2024-11-08 16:58:01,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:58:01,851 INFO L124 PetriNetUnfolderBase]: 570/1052 cut-off events. [2024-11-08 16:58:01,852 INFO L125 PetriNetUnfolderBase]: For 75/75 co-relation queries the response was YES. [2024-11-08 16:58:01,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2022 conditions, 1052 events. 570/1052 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 5562 event pairs, 189 based on Foata normal form. 26/939 useless extension candidates. Maximal degree in co-relation 1983. Up to 596 conditions per place. [2024-11-08 16:58:01,863 INFO L140 encePairwiseOnDemand]: 44/50 looper letters, 55 selfloop transitions, 4 changer transitions 0/79 dead transitions. [2024-11-08 16:58:01,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 79 transitions, 372 flow [2024-11-08 16:58:01,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:58:01,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:58:01,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 145 transitions. [2024-11-08 16:58:01,865 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.725 [2024-11-08 16:58:01,865 INFO L175 Difference]: Start difference. First operand has 60 places, 55 transitions, 198 flow. Second operand 4 states and 145 transitions. [2024-11-08 16:58:01,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 79 transitions, 372 flow [2024-11-08 16:58:01,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 79 transitions, 361 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-08 16:58:01,873 INFO L231 Difference]: Finished difference. Result has 63 places, 58 transitions, 216 flow [2024-11-08 16:58:01,874 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=216, PETRI_PLACES=63, PETRI_TRANSITIONS=58} [2024-11-08 16:58:01,875 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 15 predicate places. [2024-11-08 16:58:01,875 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 58 transitions, 216 flow [2024-11-08 16:58:01,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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 16:58:01,877 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:58:01,877 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:58:01,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:58:01,878 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 16:58:01,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:01,879 INFO L85 PathProgramCache]: Analyzing trace with hash -2009061603, now seen corresponding path program 1 times [2024-11-08 16:58:01,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:01,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513744899] [2024-11-08 16:58:01,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:01,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:01,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:01,988 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 16:58:01,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:01,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513744899] [2024-11-08 16:58:01,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513744899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:01,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:58:01,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:58:01,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668430548] [2024-11-08 16:58:01,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:01,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:58:01,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:01,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:58:01,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:58:02,017 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 50 [2024-11-08 16:58:02,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 58 transitions, 216 flow. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 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 16:58:02,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:58:02,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 50 [2024-11-08 16:58:02,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:58:02,318 INFO L124 PetriNetUnfolderBase]: 919/1606 cut-off events. [2024-11-08 16:58:02,319 INFO L125 PetriNetUnfolderBase]: For 504/679 co-relation queries the response was YES. [2024-11-08 16:58:02,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3493 conditions, 1606 events. 919/1606 cut-off events. For 504/679 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 8938 event pairs, 456 based on Foata normal form. 97/1494 useless extension candidates. Maximal degree in co-relation 3452. Up to 915 conditions per place. [2024-11-08 16:58:02,335 INFO L140 encePairwiseOnDemand]: 44/50 looper letters, 59 selfloop transitions, 4 changer transitions 0/84 dead transitions. [2024-11-08 16:58:02,335 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 84 transitions, 426 flow [2024-11-08 16:58:02,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:58:02,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:58:02,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 143 transitions. [2024-11-08 16:58:02,336 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.715 [2024-11-08 16:58:02,336 INFO L175 Difference]: Start difference. First operand has 63 places, 58 transitions, 216 flow. Second operand 4 states and 143 transitions. [2024-11-08 16:58:02,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 84 transitions, 426 flow [2024-11-08 16:58:02,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 84 transitions, 417 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 16:58:02,342 INFO L231 Difference]: Finished difference. Result has 67 places, 61 transitions, 242 flow [2024-11-08 16:58:02,342 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=242, PETRI_PLACES=67, PETRI_TRANSITIONS=61} [2024-11-08 16:58:02,343 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 19 predicate places. [2024-11-08 16:58:02,344 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 61 transitions, 242 flow [2024-11-08 16:58:02,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 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 16:58:02,344 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:58:02,344 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:58:02,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:58:02,345 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 16:58:02,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:02,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1424100549, now seen corresponding path program 1 times [2024-11-08 16:58:02,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:02,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063695869] [2024-11-08 16:58:02,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:02,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:02,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:02,452 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 16:58:02,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:02,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063695869] [2024-11-08 16:58:02,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063695869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:02,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:58:02,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:58:02,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210448360] [2024-11-08 16:58:02,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:02,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:58:02,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:02,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:58:02,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:58:02,507 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 50 [2024-11-08 16:58:02,508 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 61 transitions, 242 flow. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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 16:58:02,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:58:02,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 50 [2024-11-08 16:58:02,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:58:02,700 INFO L124 PetriNetUnfolderBase]: 574/1069 cut-off events. [2024-11-08 16:58:02,700 INFO L125 PetriNetUnfolderBase]: For 506/650 co-relation queries the response was YES. [2024-11-08 16:58:02,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2524 conditions, 1069 events. 574/1069 cut-off events. For 506/650 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 5793 event pairs, 387 based on Foata normal form. 50/955 useless extension candidates. Maximal degree in co-relation 2485. Up to 801 conditions per place. [2024-11-08 16:58:02,711 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 35 selfloop transitions, 2 changer transitions 2/62 dead transitions. [2024-11-08 16:58:02,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 62 transitions, 320 flow [2024-11-08 16:58:02,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:58:02,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:58:02,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 127 transitions. [2024-11-08 16:58:02,713 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.635 [2024-11-08 16:58:02,713 INFO L175 Difference]: Start difference. First operand has 67 places, 61 transitions, 242 flow. Second operand 4 states and 127 transitions. [2024-11-08 16:58:02,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 62 transitions, 320 flow [2024-11-08 16:58:02,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 62 transitions, 317 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 16:58:02,720 INFO L231 Difference]: Finished difference. Result has 70 places, 60 transitions, 245 flow [2024-11-08 16:58:02,720 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=245, PETRI_PLACES=70, PETRI_TRANSITIONS=60} [2024-11-08 16:58:02,721 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 22 predicate places. [2024-11-08 16:58:02,721 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 60 transitions, 245 flow [2024-11-08 16:58:02,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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 16:58:02,722 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:58:02,722 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:58:02,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:58:02,722 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 16:58:02,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:02,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1728451409, now seen corresponding path program 1 times [2024-11-08 16:58:02,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:02,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669604628] [2024-11-08 16:58:02,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:02,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:02,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:02,845 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 16:58:02,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:02,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669604628] [2024-11-08 16:58:02,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669604628] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:58:02,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936835416] [2024-11-08 16:58:02,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:02,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:02,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:58:02,848 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:58:02,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 16:58:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:02,943 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 16:58:02,944 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:58:03,129 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:03,129 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:58:03,333 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:03,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936835416] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:58:03,335 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:58:03,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 19 [2024-11-08 16:58:03,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476947491] [2024-11-08 16:58:03,336 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:58:03,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-08 16:58:03,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:03,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-08 16:58:03,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-08 16:58:03,774 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 50 [2024-11-08 16:58:03,775 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 60 transitions, 245 flow. Second operand has 19 states, 19 states have (on average 17.526315789473685) internal successors, (333), 19 states have internal predecessors, (333), 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 16:58:03,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:58:03,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 50 [2024-11-08 16:58:03,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:58:05,139 INFO L124 PetriNetUnfolderBase]: 2175/3653 cut-off events. [2024-11-08 16:58:05,139 INFO L125 PetriNetUnfolderBase]: For 1152/1403 co-relation queries the response was YES. [2024-11-08 16:58:05,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8565 conditions, 3653 events. 2175/3653 cut-off events. For 1152/1403 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 22136 event pairs, 354 based on Foata normal form. 129/3323 useless extension candidates. Maximal degree in co-relation 8535. Up to 510 conditions per place. [2024-11-08 16:58:05,171 INFO L140 encePairwiseOnDemand]: 35/50 looper letters, 149 selfloop transitions, 29 changer transitions 12/203 dead transitions. [2024-11-08 16:58:05,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 203 transitions, 1074 flow [2024-11-08 16:58:05,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 16:58:05,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-08 16:58:05,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 417 transitions. [2024-11-08 16:58:05,174 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49058823529411766 [2024-11-08 16:58:05,174 INFO L175 Difference]: Start difference. First operand has 70 places, 60 transitions, 245 flow. Second operand 17 states and 417 transitions. [2024-11-08 16:58:05,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 203 transitions, 1074 flow [2024-11-08 16:58:05,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 203 transitions, 1070 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:58:05,182 INFO L231 Difference]: Finished difference. Result has 85 places, 71 transitions, 355 flow [2024-11-08 16:58:05,183 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=355, PETRI_PLACES=85, PETRI_TRANSITIONS=71} [2024-11-08 16:58:05,186 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 37 predicate places. [2024-11-08 16:58:05,186 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 71 transitions, 355 flow [2024-11-08 16:58:05,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 17.526315789473685) internal successors, (333), 19 states have internal predecessors, (333), 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 16:58:05,186 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:58:05,187 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 1, 1] [2024-11-08 16:58:05,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 16:58:05,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:05,393 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 16:58:05,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:05,393 INFO L85 PathProgramCache]: Analyzing trace with hash 601055480, now seen corresponding path program 2 times [2024-11-08 16:58:05,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:05,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965186882] [2024-11-08 16:58:05,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:05,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:05,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:05,620 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:05,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:05,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965186882] [2024-11-08 16:58:05,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965186882] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:58:05,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868903885] [2024-11-08 16:58:05,621 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 16:58:05,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:05,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:58:05,623 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:58:05,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 16:58:05,703 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 16:58:05,703 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 16:58:05,704 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 16:58:05,706 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:58:05,805 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 16:58:05,805 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:58:05,870 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 16:58:05,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868903885] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:58:05,870 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:58:05,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 3, 3] total 13 [2024-11-08 16:58:05,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83922272] [2024-11-08 16:58:05,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:58:05,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 16:58:05,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:05,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 16:58:05,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-08 16:58:05,930 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 50 [2024-11-08 16:58:05,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 71 transitions, 355 flow. Second operand has 15 states, 15 states have (on average 23.533333333333335) internal successors, (353), 15 states have internal predecessors, (353), 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 16:58:05,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:58:05,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 50 [2024-11-08 16:58:05,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:58:06,644 INFO L124 PetriNetUnfolderBase]: 1047/2033 cut-off events. [2024-11-08 16:58:06,645 INFO L125 PetriNetUnfolderBase]: For 1701/1864 co-relation queries the response was YES. [2024-11-08 16:58:06,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5221 conditions, 2033 events. 1047/2033 cut-off events. For 1701/1864 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 12998 event pairs, 706 based on Foata normal form. 45/1826 useless extension candidates. Maximal degree in co-relation 5140. Up to 1412 conditions per place. [2024-11-08 16:58:06,671 INFO L140 encePairwiseOnDemand]: 44/50 looper letters, 40 selfloop transitions, 20 changer transitions 0/86 dead transitions. [2024-11-08 16:58:06,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 86 transitions, 558 flow [2024-11-08 16:58:06,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 16:58:06,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-08 16:58:06,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 385 transitions. [2024-11-08 16:58:06,673 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5133333333333333 [2024-11-08 16:58:06,674 INFO L175 Difference]: Start difference. First operand has 85 places, 71 transitions, 355 flow. Second operand 15 states and 385 transitions. [2024-11-08 16:58:06,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 86 transitions, 558 flow [2024-11-08 16:58:06,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 86 transitions, 510 flow, removed 11 selfloop flow, removed 9 redundant places. [2024-11-08 16:58:06,681 INFO L231 Difference]: Finished difference. Result has 90 places, 75 transitions, 380 flow [2024-11-08 16:58:06,681 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=380, PETRI_PLACES=90, PETRI_TRANSITIONS=75} [2024-11-08 16:58:06,682 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 42 predicate places. [2024-11-08 16:58:06,682 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 75 transitions, 380 flow [2024-11-08 16:58:06,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 23.533333333333335) internal successors, (353), 15 states have internal predecessors, (353), 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 16:58:06,683 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:58:06,683 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:58:06,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 16:58:06,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-08 16:58:06,884 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 16:58:06,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:06,884 INFO L85 PathProgramCache]: Analyzing trace with hash -428126195, now seen corresponding path program 1 times [2024-11-08 16:58:06,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:06,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840413411] [2024-11-08 16:58:06,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:06,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:06,987 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 16:58:06,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:06,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840413411] [2024-11-08 16:58:06,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840413411] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:58:06,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475123372] [2024-11-08 16:58:06,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:06,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:06,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:58:06,991 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:58:06,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 16:58:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:07,082 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 16:58:07,083 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:58:07,263 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:07,263 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:58:07,463 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:07,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475123372] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:58:07,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:58:07,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 19 [2024-11-08 16:58:07,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358186958] [2024-11-08 16:58:07,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:58:07,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-08 16:58:07,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:07,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-08 16:58:07,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-08 16:58:07,845 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 50 [2024-11-08 16:58:07,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 75 transitions, 380 flow. Second operand has 19 states, 19 states have (on average 17.736842105263158) internal successors, (337), 19 states have internal predecessors, (337), 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 16:58:07,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:58:07,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 50 [2024-11-08 16:58:07,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:58:09,031 INFO L124 PetriNetUnfolderBase]: 2227/3573 cut-off events. [2024-11-08 16:58:09,031 INFO L125 PetriNetUnfolderBase]: For 1867/2012 co-relation queries the response was YES. [2024-11-08 16:58:09,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9142 conditions, 3573 events. 2227/3573 cut-off events. For 1867/2012 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 21133 event pairs, 334 based on Foata normal form. 46/3252 useless extension candidates. Maximal degree in co-relation 8995. Up to 590 conditions per place. [2024-11-08 16:58:09,057 INFO L140 encePairwiseOnDemand]: 35/50 looper letters, 102 selfloop transitions, 21 changer transitions 70/207 dead transitions. [2024-11-08 16:58:09,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 207 transitions, 1232 flow [2024-11-08 16:58:09,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 16:58:09,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-08 16:58:09,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 407 transitions. [2024-11-08 16:58:09,060 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4788235294117647 [2024-11-08 16:58:09,060 INFO L175 Difference]: Start difference. First operand has 90 places, 75 transitions, 380 flow. Second operand 17 states and 407 transitions. [2024-11-08 16:58:09,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 207 transitions, 1232 flow [2024-11-08 16:58:09,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 207 transitions, 1144 flow, removed 9 selfloop flow, removed 12 redundant places. [2024-11-08 16:58:09,067 INFO L231 Difference]: Finished difference. Result has 94 places, 65 transitions, 301 flow [2024-11-08 16:58:09,068 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=301, PETRI_PLACES=94, PETRI_TRANSITIONS=65} [2024-11-08 16:58:09,068 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 46 predicate places. [2024-11-08 16:58:09,069 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 65 transitions, 301 flow [2024-11-08 16:58:09,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 17.736842105263158) internal successors, (337), 19 states have internal predecessors, (337), 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 16:58:09,069 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:58:09,069 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:58:09,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 16:58:09,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:09,272 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 16:58:09,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:09,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1351428560, now seen corresponding path program 1 times [2024-11-08 16:58:09,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:09,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518786261] [2024-11-08 16:58:09,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:09,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:09,353 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 16:58:09,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:09,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518786261] [2024-11-08 16:58:09,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518786261] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:58:09,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346486047] [2024-11-08 16:58:09,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:09,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:09,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:58:09,356 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:58:09,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 16:58:09,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:09,440 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 16:58:09,441 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:58:09,473 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 16:58:09,473 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:58:09,525 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 16:58:09,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346486047] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:58:09,526 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:58:09,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-08 16:58:09,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096391727] [2024-11-08 16:58:09,526 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:58:09,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 16:58:09,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:09,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 16:58:09,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:58:09,589 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 50 [2024-11-08 16:58:09,589 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 65 transitions, 301 flow. Second operand has 12 states, 12 states have (on average 25.916666666666668) internal successors, (311), 12 states have internal predecessors, (311), 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 16:58:09,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:58:09,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 50 [2024-11-08 16:58:09,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:58:10,338 INFO L124 PetriNetUnfolderBase]: 2002/3789 cut-off events. [2024-11-08 16:58:10,339 INFO L125 PetriNetUnfolderBase]: For 2982/3072 co-relation queries the response was YES. [2024-11-08 16:58:10,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9677 conditions, 3789 events. 2002/3789 cut-off events. For 2982/3072 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 24075 event pairs, 355 based on Foata normal form. 132/3813 useless extension candidates. Maximal degree in co-relation 9582. Up to 1132 conditions per place. [2024-11-08 16:58:10,382 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 137 selfloop transitions, 13 changer transitions 0/174 dead transitions. [2024-11-08 16:58:10,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 174 transitions, 1038 flow [2024-11-08 16:58:10,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 16:58:10,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-08 16:58:10,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 361 transitions. [2024-11-08 16:58:10,386 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.722 [2024-11-08 16:58:10,386 INFO L175 Difference]: Start difference. First operand has 94 places, 65 transitions, 301 flow. Second operand 10 states and 361 transitions. [2024-11-08 16:58:10,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 174 transitions, 1038 flow [2024-11-08 16:58:10,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 174 transitions, 915 flow, removed 12 selfloop flow, removed 13 redundant places. [2024-11-08 16:58:10,398 INFO L231 Difference]: Finished difference. Result has 85 places, 74 transitions, 339 flow [2024-11-08 16:58:10,398 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=339, PETRI_PLACES=85, PETRI_TRANSITIONS=74} [2024-11-08 16:58:10,401 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 37 predicate places. [2024-11-08 16:58:10,401 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 74 transitions, 339 flow [2024-11-08 16:58:10,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 25.916666666666668) internal successors, (311), 12 states have internal predecessors, (311), 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 16:58:10,402 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:58:10,403 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:58:10,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-08 16:58:10,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-08 16:58:10,604 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 16:58:10,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:10,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1963168128, now seen corresponding path program 1 times [2024-11-08 16:58:10,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:10,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090251172] [2024-11-08 16:58:10,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:10,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:10,696 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 16:58:10,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:10,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090251172] [2024-11-08 16:58:10,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090251172] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:58:10,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20988811] [2024-11-08 16:58:10,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:10,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:10,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:58:10,699 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:58:10,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 16:58:10,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:10,796 INFO L255 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 16:58:10,797 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:58:10,841 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 16:58:10,842 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:58:10,900 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 16:58:10,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20988811] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:58:10,901 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:58:10,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-08 16:58:10,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950281379] [2024-11-08 16:58:10,902 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:58:10,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 16:58:10,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:10,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 16:58:10,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:58:10,955 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 50 [2024-11-08 16:58:10,956 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 74 transitions, 339 flow. Second operand has 12 states, 12 states have (on average 26.083333333333332) internal successors, (313), 12 states have internal predecessors, (313), 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 16:58:10,956 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:58:10,956 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 50 [2024-11-08 16:58:10,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:58:12,189 INFO L124 PetriNetUnfolderBase]: 4048/7246 cut-off events. [2024-11-08 16:58:12,190 INFO L125 PetriNetUnfolderBase]: For 6963/7187 co-relation queries the response was YES. [2024-11-08 16:58:12,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18545 conditions, 7246 events. 4048/7246 cut-off events. For 6963/7187 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 48543 event pairs, 895 based on Foata normal form. 246/7288 useless extension candidates. Maximal degree in co-relation 18459. Up to 2158 conditions per place. [2024-11-08 16:58:12,265 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 183 selfloop transitions, 13 changer transitions 0/223 dead transitions. [2024-11-08 16:58:12,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 223 transitions, 1522 flow [2024-11-08 16:58:12,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 16:58:12,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-08 16:58:12,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 353 transitions. [2024-11-08 16:58:12,267 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.706 [2024-11-08 16:58:12,267 INFO L175 Difference]: Start difference. First operand has 85 places, 74 transitions, 339 flow. Second operand 10 states and 353 transitions. [2024-11-08 16:58:12,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 223 transitions, 1522 flow [2024-11-08 16:58:12,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 223 transitions, 1439 flow, removed 27 selfloop flow, removed 2 redundant places. [2024-11-08 16:58:12,288 INFO L231 Difference]: Finished difference. Result has 95 places, 83 transitions, 411 flow [2024-11-08 16:58:12,291 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=411, PETRI_PLACES=95, PETRI_TRANSITIONS=83} [2024-11-08 16:58:12,292 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 47 predicate places. [2024-11-08 16:58:12,292 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 83 transitions, 411 flow [2024-11-08 16:58:12,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 26.083333333333332) internal successors, (313), 12 states have internal predecessors, (313), 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 16:58:12,295 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:58:12,295 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 16:58:12,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-08 16:58:12,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-08 16:58:12,499 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 16:58:12,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:12,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1795804318, now seen corresponding path program 2 times [2024-11-08 16:58:12,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:12,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355812712] [2024-11-08 16:58:12,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:12,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:12,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:12,877 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-08 16:58:12,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:12,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355812712] [2024-11-08 16:58:12,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355812712] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:58:12,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426674772] [2024-11-08 16:58:12,878 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 16:58:12,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:12,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:58:12,881 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:58:12,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 16:58:12,977 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 16:58:12,977 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 16:58:12,978 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 16:58:12,979 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:58:13,092 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-08 16:58:13,093 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:58:13,201 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-08 16:58:13,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426674772] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:58:13,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:58:13,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 3, 3] total 11 [2024-11-08 16:58:13,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952249000] [2024-11-08 16:58:13,202 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:58:13,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 16:58:13,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:13,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 16:58:13,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:58:13,458 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 50 [2024-11-08 16:58:13,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 83 transitions, 411 flow. Second operand has 13 states, 13 states have (on average 18.0) internal successors, (234), 13 states have internal predecessors, (234), 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 16:58:13,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:58:13,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 50 [2024-11-08 16:58:13,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:58:16,666 INFO L124 PetriNetUnfolderBase]: 14409/22923 cut-off events. [2024-11-08 16:58:16,666 INFO L125 PetriNetUnfolderBase]: For 24653/25327 co-relation queries the response was YES. [2024-11-08 16:58:16,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65169 conditions, 22923 events. 14409/22923 cut-off events. For 24653/25327 co-relation queries the response was YES. Maximal size of possible extension queue 532. Compared 161162 event pairs, 3056 based on Foata normal form. 160/22805 useless extension candidates. Maximal degree in co-relation 51412. Up to 5616 conditions per place. [2024-11-08 16:58:16,841 INFO L140 encePairwiseOnDemand]: 37/50 looper letters, 157 selfloop transitions, 47 changer transitions 45/266 dead transitions. [2024-11-08 16:58:16,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 266 transitions, 1820 flow [2024-11-08 16:58:16,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 16:58:16,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-08 16:58:16,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 399 transitions. [2024-11-08 16:58:16,846 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46941176470588236 [2024-11-08 16:58:16,846 INFO L175 Difference]: Start difference. First operand has 95 places, 83 transitions, 411 flow. Second operand 17 states and 399 transitions. [2024-11-08 16:58:16,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 266 transitions, 1820 flow [2024-11-08 16:58:16,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 266 transitions, 1717 flow, removed 29 selfloop flow, removed 6 redundant places. [2024-11-08 16:58:16,971 INFO L231 Difference]: Finished difference. Result has 108 places, 104 transitions, 639 flow [2024-11-08 16:58:16,972 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=639, PETRI_PLACES=108, PETRI_TRANSITIONS=104} [2024-11-08 16:58:16,973 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 60 predicate places. [2024-11-08 16:58:16,973 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 104 transitions, 639 flow [2024-11-08 16:58:16,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 18.0) internal successors, (234), 13 states have internal predecessors, (234), 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 16:58:16,975 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:58:16,975 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:58:16,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-08 16:58:17,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-08 16:58:17,176 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 16:58:17,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:17,176 INFO L85 PathProgramCache]: Analyzing trace with hash 674424114, now seen corresponding path program 2 times [2024-11-08 16:58:17,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:17,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044863022] [2024-11-08 16:58:17,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:17,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:17,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:17,387 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-08 16:58:17,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:17,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044863022] [2024-11-08 16:58:17,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044863022] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:58:17,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885130354] [2024-11-08 16:58:17,388 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 16:58:17,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:17,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:58:17,391 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:58:17,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 16:58:17,472 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 16:58:17,472 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 16:58:17,473 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 16:58:17,474 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:58:17,572 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-08 16:58:17,573 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:58:17,668 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-08 16:58:17,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885130354] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:58:17,669 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:58:17,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 3, 3] total 11 [2024-11-08 16:58:17,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135757944] [2024-11-08 16:58:17,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:58:17,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 16:58:17,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:17,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 16:58:17,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:58:17,864 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 50 [2024-11-08 16:58:17,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 104 transitions, 639 flow. Second operand has 13 states, 13 states have (on average 18.307692307692307) internal successors, (238), 13 states have internal predecessors, (238), 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 16:58:17,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:58:17,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 50 [2024-11-08 16:58:17,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:58:20,733 INFO L124 PetriNetUnfolderBase]: 14208/20999 cut-off events. [2024-11-08 16:58:20,734 INFO L125 PetriNetUnfolderBase]: For 58295/61768 co-relation queries the response was YES. [2024-11-08 16:58:20,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66332 conditions, 20999 events. 14208/20999 cut-off events. For 58295/61768 co-relation queries the response was YES. Maximal size of possible extension queue 513. Compared 136419 event pairs, 1113 based on Foata normal form. 177/20988 useless extension candidates. Maximal degree in co-relation 50130. Up to 6441 conditions per place. [2024-11-08 16:58:20,820 INFO L140 encePairwiseOnDemand]: 38/50 looper letters, 0 selfloop transitions, 0 changer transitions 295/295 dead transitions. [2024-11-08 16:58:20,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 295 transitions, 2385 flow [2024-11-08 16:58:20,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 16:58:20,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-08 16:58:20,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 388 transitions. [2024-11-08 16:58:20,823 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45647058823529413 [2024-11-08 16:58:20,823 INFO L175 Difference]: Start difference. First operand has 108 places, 104 transitions, 639 flow. Second operand 17 states and 388 transitions. [2024-11-08 16:58:20,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 295 transitions, 2385 flow [2024-11-08 16:58:20,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 295 transitions, 2352 flow, removed 4 selfloop flow, removed 9 redundant places. [2024-11-08 16:58:20,918 INFO L231 Difference]: Finished difference. Result has 112 places, 0 transitions, 0 flow [2024-11-08 16:58:20,918 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=0, PETRI_PLACES=112, PETRI_TRANSITIONS=0} [2024-11-08 16:58:20,919 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 64 predicate places. [2024-11-08 16:58:20,919 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 0 transitions, 0 flow [2024-11-08 16:58:20,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 18.307692307692307) internal successors, (238), 13 states have internal predecessors, (238), 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 16:58:20,926 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2024-11-08 16:58:20,927 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-08 16:58:20,927 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-08 16:58:20,927 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-08 16:58:20,927 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-11-08 16:58:20,927 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-08 16:58:20,928 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 13 remaining) [2024-11-08 16:58:20,928 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 13 remaining) [2024-11-08 16:58:20,928 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2024-11-08 16:58:20,928 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-08 16:58:20,928 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-08 16:58:20,929 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-08 16:58:20,929 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-08 16:58:20,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-08 16:58:21,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:21,130 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:58:21,134 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-08 16:58:21,135 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 16:58:21,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 04:58:21 BasicIcfg [2024-11-08 16:58:21,140 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 16:58:21,140 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 16:58:21,140 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 16:58:21,140 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 16:58:21,141 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:57:58" (3/4) ... [2024-11-08 16:58:21,143 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 16:58:21,147 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-08 16:58:21,148 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-08 16:58:21,148 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-08 16:58:21,156 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 91 nodes and edges [2024-11-08 16:58:21,157 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-08 16:58:21,157 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-08 16:58:21,157 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-08 16:58:21,267 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 16:58:21,267 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 16:58:21,267 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 16:58:21,268 INFO L158 Benchmark]: Toolchain (without parser) took 23954.06ms. Allocated memory was 157.3MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 118.7MB in the beginning and 2.0GB in the end (delta: -1.8GB). Peak memory consumption was 473.7MB. Max. memory is 16.1GB. [2024-11-08 16:58:21,268 INFO L158 Benchmark]: CDTParser took 1.27ms. Allocated memory is still 111.1MB. Free memory was 88.5MB in the beginning and 88.4MB in the end (delta: 86.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:58:21,269 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.99ms. Allocated memory is still 157.3MB. Free memory was 118.6MB in the beginning and 104.9MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 16:58:21,269 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.55ms. Allocated memory is still 157.3MB. Free memory was 104.9MB in the beginning and 103.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:58:21,271 INFO L158 Benchmark]: Boogie Preprocessor took 58.60ms. Allocated memory is still 157.3MB. Free memory was 103.3MB in the beginning and 100.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:58:21,272 INFO L158 Benchmark]: RCFGBuilder took 813.88ms. Allocated memory is still 157.3MB. Free memory was 100.8MB in the beginning and 105.7MB in the end (delta: -4.9MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2024-11-08 16:58:21,272 INFO L158 Benchmark]: TraceAbstraction took 22551.82ms. Allocated memory was 157.3MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 105.1MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 548.3MB. Max. memory is 16.1GB. [2024-11-08 16:58:21,272 INFO L158 Benchmark]: Witness Printer took 127.32ms. Allocated memory is still 2.5GB. Free memory was 2.0GB in the beginning and 2.0GB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-08 16:58:21,274 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.27ms. Allocated memory is still 111.1MB. Free memory was 88.5MB in the beginning and 88.4MB in the end (delta: 86.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 342.99ms. Allocated memory is still 157.3MB. Free memory was 118.6MB in the beginning and 104.9MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.55ms. Allocated memory is still 157.3MB. Free memory was 104.9MB in the beginning and 103.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.60ms. Allocated memory is still 157.3MB. Free memory was 103.3MB in the beginning and 100.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 813.88ms. Allocated memory is still 157.3MB. Free memory was 100.8MB in the beginning and 105.7MB in the end (delta: -4.9MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. * TraceAbstraction took 22551.82ms. Allocated memory was 157.3MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 105.1MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 548.3MB. Max. memory is 16.1GB. * Witness Printer took 127.32ms. Allocated memory is still 2.5GB. Free memory was 2.0GB in the beginning and 2.0GB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 74 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 22.4s, OverallIterations: 13, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 15.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1830 SdHoareTripleChecker+Valid, 5.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1672 mSDsluCounter, 1107 SdHoareTripleChecker+Invalid, 4.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1089 mSDsCounter, 106 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6468 IncrementalHoareTripleChecker+Invalid, 6574 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 106 mSolverCounterUnsat, 18 mSDtfsCounter, 6468 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 554 GetRequests, 361 SyntacticMatches, 8 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=639occurred in iteration=12, InterpolantAutomatonStates: 135, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 482 NumberOfCodeBlocks, 402 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 664 ConstructedInterpolants, 0 QuantifiedInterpolants, 1974 SizeOfPredicates, 33 NumberOfNonLiveVariables, 916 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 30 InterpolantComputations, 5 PerfectInterpolantSequences, 386/647 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-08 16:58:21,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d276a472-9bed-474c-859e-f0b969befa6e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE