./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a 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_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU --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 45d1947e02656e790dafd6ca03f6eadb14d0b370e2217b75740af9998d975bef --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:11:57,134 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:11:57,253 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 22:11:57,262 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:11:57,263 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:11:57,299 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:11:57,299 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:11:57,300 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:11:57,303 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:11:57,305 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:11:57,305 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:11:57,306 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:11:57,307 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:11:57,307 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:11:57,312 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:11:57,312 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:11:57,313 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:11:57,313 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:11:57,314 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:11:57,314 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:11:57,314 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:11:57,318 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:11:57,318 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:11:57,319 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:11:57,319 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:11:57,320 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 22:11:57,320 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:11:57,320 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:11:57,321 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:11:57,321 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:11:57,325 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:11:57,325 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:11:57,326 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:11:57,326 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:11:57,326 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:11:57,327 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:11:57,327 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:11:57,327 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:11:57,328 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:11:57,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:11:57,328 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:11:57,331 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:11:57,332 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:11:57,332 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:11:57,333 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_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45d1947e02656e790dafd6ca03f6eadb14d0b370e2217b75740af9998d975bef [2024-10-31 22:11:57,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:11:57,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:11:57,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:11:57,751 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:11:57,752 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:11:57,753 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.i Unable to find full path for "g++" [2024-10-31 22:11:59,990 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:12:00,373 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:12:00,377 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.i [2024-10-31 22:12:00,401 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/data/42d0916f8/f034129844e947338ff8ddb998107ed5/FLAG3921a9d37 [2024-10-31 22:12:00,558 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/data/42d0916f8/f034129844e947338ff8ddb998107ed5 [2024-10-31 22:12:00,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:12:00,563 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:12:00,565 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:12:00,565 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:12:00,573 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:12:00,574 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:12:00" (1/1) ... [2024-10-31 22:12:00,576 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57416bb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:00, skipping insertion in model container [2024-10-31 22:12:00,576 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:12:00" (1/1) ... [2024-10-31 22:12:00,644 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:12:01,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:12:01,345 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:12:01,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:12:01,618 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:12:01,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:01 WrapperNode [2024-10-31 22:12:01,619 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:12:01,620 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:12:01,620 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:12:01,620 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:12:01,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:01" (1/1) ... [2024-10-31 22:12:01,656 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:01" (1/1) ... [2024-10-31 22:12:01,699 INFO L138 Inliner]: procedures = 271, calls = 36, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 150 [2024-10-31 22:12:01,702 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:12:01,702 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:12:01,703 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:12:01,703 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:12:01,716 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:01" (1/1) ... [2024-10-31 22:12:01,716 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:01" (1/1) ... [2024-10-31 22:12:01,724 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:01" (1/1) ... [2024-10-31 22:12:01,754 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 5, 5, 2]. 36 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 1]. [2024-10-31 22:12:01,759 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:01" (1/1) ... [2024-10-31 22:12:01,759 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:01" (1/1) ... [2024-10-31 22:12:01,774 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:01" (1/1) ... [2024-10-31 22:12:01,782 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:01" (1/1) ... [2024-10-31 22:12:01,786 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:01" (1/1) ... [2024-10-31 22:12:01,791 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:01" (1/1) ... [2024-10-31 22:12:01,794 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:12:01,798 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:12:01,799 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:12:01,799 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:12:01,800 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:01" (1/1) ... [2024-10-31 22:12:01,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:12:01,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:01,845 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:01,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:12:01,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:12:01,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:12:01,888 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:12:01,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:12:01,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:12:01,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-31 22:12:01,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-31 22:12:01,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:12:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:12:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-31 22:12:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-31 22:12:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:12:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:12:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-31 22:12:01,893 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-31 22:12:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:12:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:12:01,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:12:01,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-31 22:12:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:12:01,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:12:01,898 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:12:02,144 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:12:02,156 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:12:02,550 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:12:02,550 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:12:03,102 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:12:03,103 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-10-31 22:12:03,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:03 BoogieIcfgContainer [2024-10-31 22:12:03,105 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:12:03,108 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:12:03,108 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:12:03,112 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:12:03,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:12:00" (1/3) ... [2024-10-31 22:12:03,113 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ee8553e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:12:03, skipping insertion in model container [2024-10-31 22:12:03,113 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:01" (2/3) ... [2024-10-31 22:12:03,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ee8553e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:12:03, skipping insertion in model container [2024-10-31 22:12:03,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:03" (3/3) ... [2024-10-31 22:12:03,118 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_07-cond_racing2.i [2024-10-31 22:12:03,137 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:12:03,138 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-10-31 22:12:03,138 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:12:03,221 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 22:12:03,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 71 transitions, 149 flow [2024-10-31 22:12:03,327 INFO L124 PetriNetUnfolderBase]: 17/97 cut-off events. [2024-10-31 22:12:03,328 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:12:03,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 97 events. 17/97 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 297 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 62. Up to 6 conditions per place. [2024-10-31 22:12:03,333 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 71 transitions, 149 flow [2024-10-31 22:12:03,338 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 70 transitions, 147 flow [2024-10-31 22:12:03,353 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:12:03,361 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;@528b26c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:12:03,362 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-10-31 22:12:03,370 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:12:03,370 INFO L124 PetriNetUnfolderBase]: 1/11 cut-off events. [2024-10-31 22:12:03,370 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:12:03,370 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:03,371 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-31 22:12:03,372 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-10-31 22:12:03,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:03,378 INFO L85 PathProgramCache]: Analyzing trace with hash 473941688, now seen corresponding path program 1 times [2024-10-31 22:12:03,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:03,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862353611] [2024-10-31 22:12:03,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:03,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:03,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:03,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:03,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:03,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862353611] [2024-10-31 22:12:03,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862353611] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:03,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:03,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:03,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004697726] [2024-10-31 22:12:03,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:03,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:12:03,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:03,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:12:03,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:12:03,957 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 71 [2024-10-31 22:12:03,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 70 transitions, 147 flow. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:03,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:03,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 71 [2024-10-31 22:12:03,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:04,287 INFO L124 PetriNetUnfolderBase]: 157/480 cut-off events. [2024-10-31 22:12:04,288 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:12:04,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 781 conditions, 480 events. 157/480 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2570 event pairs, 18 based on Foata normal form. 72/463 useless extension candidates. Maximal degree in co-relation 752. Up to 259 conditions per place. [2024-10-31 22:12:04,298 INFO L140 encePairwiseOnDemand]: 57/71 looper letters, 47 selfloop transitions, 3 changer transitions 0/83 dead transitions. [2024-10-31 22:12:04,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 83 transitions, 273 flow [2024-10-31 22:12:04,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:12:04,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:12:04,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 205 transitions. [2024-10-31 22:12:04,317 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.721830985915493 [2024-10-31 22:12:04,319 INFO L175 Difference]: Start difference. First operand has 62 places, 70 transitions, 147 flow. Second operand 4 states and 205 transitions. [2024-10-31 22:12:04,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 83 transitions, 273 flow [2024-10-31 22:12:04,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 83 transitions, 273 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:12:04,329 INFO L231 Difference]: Finished difference. Result has 64 places, 60 transitions, 137 flow [2024-10-31 22:12:04,335 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=137, PETRI_PLACES=64, PETRI_TRANSITIONS=60} [2024-10-31 22:12:04,339 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 2 predicate places. [2024-10-31 22:12:04,339 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 60 transitions, 137 flow [2024-10-31 22:12:04,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:04,340 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:04,340 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:04,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:12:04,341 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-10-31 22:12:04,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:04,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1639792467, now seen corresponding path program 1 times [2024-10-31 22:12:04,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:04,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908644696] [2024-10-31 22:12:04,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:04,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:04,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:04,411 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:12:04,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:04,510 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:12:04,511 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:12:04,513 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2024-10-31 22:12:04,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2024-10-31 22:12:04,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2024-10-31 22:12:04,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2024-10-31 22:12:04,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2024-10-31 22:12:04,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2024-10-31 22:12:04,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 15 remaining) [2024-10-31 22:12:04,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 15 remaining) [2024-10-31 22:12:04,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 15 remaining) [2024-10-31 22:12:04,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2024-10-31 22:12:04,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2024-10-31 22:12:04,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2024-10-31 22:12:04,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2024-10-31 22:12:04,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2024-10-31 22:12:04,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2024-10-31 22:12:04,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:12:04,520 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-31 22:12:04,523 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:12:04,523 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-31 22:12:04,565 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 22:12:04,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 104 transitions, 224 flow [2024-10-31 22:12:04,601 INFO L124 PetriNetUnfolderBase]: 30/175 cut-off events. [2024-10-31 22:12:04,601 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 22:12:04,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 175 events. 30/175 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 669 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 105. Up to 9 conditions per place. [2024-10-31 22:12:04,606 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 104 transitions, 224 flow [2024-10-31 22:12:04,609 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 104 transitions, 224 flow [2024-10-31 22:12:04,611 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:12:04,612 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;@528b26c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:12:04,613 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-10-31 22:12:04,618 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:12:04,619 INFO L124 PetriNetUnfolderBase]: 1/11 cut-off events. [2024-10-31 22:12:04,619 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:12:04,619 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:04,619 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-31 22:12:04,620 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-31 22:12:04,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:04,621 INFO L85 PathProgramCache]: Analyzing trace with hash 573219199, now seen corresponding path program 1 times [2024-10-31 22:12:04,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:04,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498434715] [2024-10-31 22:12:04,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:04,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:04,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:04,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:04,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:04,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498434715] [2024-10-31 22:12:04,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498434715] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:04,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:04,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:04,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004484210] [2024-10-31 22:12:04,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:04,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:12:04,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:04,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:12:04,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:12:04,766 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 104 [2024-10-31 22:12:04,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 104 transitions, 224 flow. Second operand has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:04,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:04,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 104 [2024-10-31 22:12:04,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:06,377 INFO L124 PetriNetUnfolderBase]: 4719/10013 cut-off events. [2024-10-31 22:12:06,377 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-10-31 22:12:06,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17194 conditions, 10013 events. 4719/10013 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 86022 event pairs, 1952 based on Foata normal form. 1711/10430 useless extension candidates. Maximal degree in co-relation 1373. Up to 7077 conditions per place. [2024-10-31 22:12:06,448 INFO L140 encePairwiseOnDemand]: 84/104 looper letters, 65 selfloop transitions, 3 changer transitions 0/115 dead transitions. [2024-10-31 22:12:06,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 115 transitions, 382 flow [2024-10-31 22:12:06,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:12:06,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:12:06,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 285 transitions. [2024-10-31 22:12:06,452 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6850961538461539 [2024-10-31 22:12:06,455 INFO L175 Difference]: Start difference. First operand has 90 places, 104 transitions, 224 flow. Second operand 4 states and 285 transitions. [2024-10-31 22:12:06,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 115 transitions, 382 flow [2024-10-31 22:12:06,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 115 transitions, 382 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:12:06,460 INFO L231 Difference]: Finished difference. Result has 95 places, 92 transitions, 220 flow [2024-10-31 22:12:06,460 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=220, PETRI_PLACES=95, PETRI_TRANSITIONS=92} [2024-10-31 22:12:06,461 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 5 predicate places. [2024-10-31 22:12:06,461 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 92 transitions, 220 flow [2024-10-31 22:12:06,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:06,462 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:06,462 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:06,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:12:06,463 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-31 22:12:06,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:06,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1572315270, now seen corresponding path program 1 times [2024-10-31 22:12:06,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:06,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974686846] [2024-10-31 22:12:06,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:06,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:06,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:06,635 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:06,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:06,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974686846] [2024-10-31 22:12:06,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974686846] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:12:06,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764425913] [2024-10-31 22:12:06,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:06,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:06,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:06,640 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:12:06,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:12:06,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:06,883 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:12:06,885 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:06,964 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:06,964 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:12:06,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764425913] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:06,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:12:06,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-31 22:12:06,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725536409] [2024-10-31 22:12:06,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:06,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:12:06,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:06,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:12:06,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:12:06,980 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 104 [2024-10-31 22:12:06,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 92 transitions, 220 flow. Second operand has 6 states, 6 states have (on average 48.5) internal successors, (291), 6 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:06,982 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:06,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 104 [2024-10-31 22:12:06,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:08,509 INFO L124 PetriNetUnfolderBase]: 3957/8829 cut-off events. [2024-10-31 22:12:08,509 INFO L125 PetriNetUnfolderBase]: For 648/648 co-relation queries the response was YES. [2024-10-31 22:12:08,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15420 conditions, 8829 events. 3957/8829 cut-off events. For 648/648 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 76560 event pairs, 252 based on Foata normal form. 144/7721 useless extension candidates. Maximal degree in co-relation 1279. Up to 3893 conditions per place. [2024-10-31 22:12:08,576 INFO L140 encePairwiseOnDemand]: 99/104 looper letters, 105 selfloop transitions, 6 changer transitions 0/158 dead transitions. [2024-10-31 22:12:08,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 158 transitions, 572 flow [2024-10-31 22:12:08,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:12:08,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:12:08,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 394 transitions. [2024-10-31 22:12:08,579 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6314102564102564 [2024-10-31 22:12:08,579 INFO L175 Difference]: Start difference. First operand has 95 places, 92 transitions, 220 flow. Second operand 6 states and 394 transitions. [2024-10-31 22:12:08,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 158 transitions, 572 flow [2024-10-31 22:12:08,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 158 transitions, 570 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:12:08,583 INFO L231 Difference]: Finished difference. Result has 98 places, 91 transitions, 226 flow [2024-10-31 22:12:08,584 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=226, PETRI_PLACES=98, PETRI_TRANSITIONS=91} [2024-10-31 22:12:08,585 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 8 predicate places. [2024-10-31 22:12:08,585 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 91 transitions, 226 flow [2024-10-31 22:12:08,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.5) internal successors, (291), 6 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:08,586 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:08,586 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:08,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:12:08,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:08,788 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-31 22:12:08,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:08,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1572264391, now seen corresponding path program 1 times [2024-10-31 22:12:08,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:08,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494261435] [2024-10-31 22:12:08,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:08,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:08,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:09,012 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:09,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:09,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494261435] [2024-10-31 22:12:09,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494261435] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:12:09,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206029702] [2024-10-31 22:12:09,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:09,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:09,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:09,020 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:12:09,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:12:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:09,206 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:12:09,207 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:09,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:12:09,248 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:12:09,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206029702] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:09,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:12:09,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2024-10-31 22:12:09,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264779320] [2024-10-31 22:12:09,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:09,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:09,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:09,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:09,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:12:09,275 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 104 [2024-10-31 22:12:09,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 91 transitions, 226 flow. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 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) [2024-10-31 22:12:09,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:09,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 104 [2024-10-31 22:12:09,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:10,765 INFO L124 PetriNetUnfolderBase]: 4413/9276 cut-off events. [2024-10-31 22:12:10,766 INFO L125 PetriNetUnfolderBase]: For 995/1132 co-relation queries the response was YES. [2024-10-31 22:12:10,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16767 conditions, 9276 events. 4413/9276 cut-off events. For 995/1132 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 76983 event pairs, 3755 based on Foata normal form. 156/8766 useless extension candidates. Maximal degree in co-relation 12948. Up to 6322 conditions per place. [2024-10-31 22:12:10,836 INFO L140 encePairwiseOnDemand]: 101/104 looper letters, 65 selfloop transitions, 2 changer transitions 0/112 dead transitions. [2024-10-31 22:12:10,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 112 transitions, 402 flow [2024-10-31 22:12:10,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:10,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:10,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 202 transitions. [2024-10-31 22:12:10,839 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6474358974358975 [2024-10-31 22:12:10,839 INFO L175 Difference]: Start difference. First operand has 98 places, 91 transitions, 226 flow. Second operand 3 states and 202 transitions. [2024-10-31 22:12:10,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 112 transitions, 402 flow [2024-10-31 22:12:10,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 112 transitions, 390 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-10-31 22:12:10,848 INFO L231 Difference]: Finished difference. Result has 95 places, 90 transitions, 216 flow [2024-10-31 22:12:10,849 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=95, PETRI_TRANSITIONS=90} [2024-10-31 22:12:10,850 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 5 predicate places. [2024-10-31 22:12:10,850 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 90 transitions, 216 flow [2024-10-31 22:12:10,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 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) [2024-10-31 22:12:10,851 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:10,851 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:10,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-31 22:12:11,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:11,052 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-31 22:12:11,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:11,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1721456828, now seen corresponding path program 1 times [2024-10-31 22:12:11,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:11,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827018818] [2024-10-31 22:12:11,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:11,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:11,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:11,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:11,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:11,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827018818] [2024-10-31 22:12:11,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827018818] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:11,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:11,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:11,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856774679] [2024-10-31 22:12:11,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:11,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:12:11,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:11,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:12:11,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:12:11,191 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 104 [2024-10-31 22:12:11,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 90 transitions, 216 flow. Second operand has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 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) [2024-10-31 22:12:11,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:11,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 104 [2024-10-31 22:12:11,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:12,965 INFO L124 PetriNetUnfolderBase]: 6297/12846 cut-off events. [2024-10-31 22:12:12,966 INFO L125 PetriNetUnfolderBase]: For 1314/1475 co-relation queries the response was YES. [2024-10-31 22:12:12,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23484 conditions, 12846 events. 6297/12846 cut-off events. For 1314/1475 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 111569 event pairs, 1495 based on Foata normal form. 222/12297 useless extension candidates. Maximal degree in co-relation 20334. Up to 6450 conditions per place. [2024-10-31 22:12:13,059 INFO L140 encePairwiseOnDemand]: 95/104 looper letters, 122 selfloop transitions, 12 changer transitions 0/181 dead transitions. [2024-10-31 22:12:13,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 181 transitions, 715 flow [2024-10-31 22:12:13,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:12:13,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:12:13,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 375 transitions. [2024-10-31 22:12:13,061 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7211538461538461 [2024-10-31 22:12:13,061 INFO L175 Difference]: Start difference. First operand has 95 places, 90 transitions, 216 flow. Second operand 5 states and 375 transitions. [2024-10-31 22:12:13,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 181 transitions, 715 flow [2024-10-31 22:12:13,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 181 transitions, 705 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:12:13,131 INFO L231 Difference]: Finished difference. Result has 101 places, 101 transitions, 306 flow [2024-10-31 22:12:13,131 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=306, PETRI_PLACES=101, PETRI_TRANSITIONS=101} [2024-10-31 22:12:13,132 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 11 predicate places. [2024-10-31 22:12:13,133 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 101 transitions, 306 flow [2024-10-31 22:12:13,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 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) [2024-10-31 22:12:13,134 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:13,134 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-10-31 22:12:13,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:12:13,135 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-31 22:12:13,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:13,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1497133687, now seen corresponding path program 1 times [2024-10-31 22:12:13,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:13,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099125654] [2024-10-31 22:12:13,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:13,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:13,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:13,234 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:12:13,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:13,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099125654] [2024-10-31 22:12:13,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099125654] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:13,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:13,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:12:13,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243592098] [2024-10-31 22:12:13,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:13,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:12:13,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:13,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:12:13,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:12:13,246 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 104 [2024-10-31 22:12:13,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 101 transitions, 306 flow. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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) [2024-10-31 22:12:13,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:13,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 104 [2024-10-31 22:12:13,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:14,786 INFO L124 PetriNetUnfolderBase]: 5573/11707 cut-off events. [2024-10-31 22:12:14,786 INFO L125 PetriNetUnfolderBase]: For 3889/3894 co-relation queries the response was YES. [2024-10-31 22:12:14,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23382 conditions, 11707 events. 5573/11707 cut-off events. For 3889/3894 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 100694 event pairs, 1085 based on Foata normal form. 160/10589 useless extension candidates. Maximal degree in co-relation 20081. Up to 7386 conditions per place. [2024-10-31 22:12:14,893 INFO L140 encePairwiseOnDemand]: 99/104 looper letters, 103 selfloop transitions, 6 changer transitions 0/155 dead transitions. [2024-10-31 22:12:14,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 155 transitions, 694 flow [2024-10-31 22:12:14,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:12:14,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:12:14,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 275 transitions. [2024-10-31 22:12:14,895 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6610576923076923 [2024-10-31 22:12:14,895 INFO L175 Difference]: Start difference. First operand has 101 places, 101 transitions, 306 flow. Second operand 4 states and 275 transitions. [2024-10-31 22:12:14,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 155 transitions, 694 flow [2024-10-31 22:12:14,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 155 transitions, 690 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-31 22:12:14,909 INFO L231 Difference]: Finished difference. Result has 103 places, 101 transitions, 318 flow [2024-10-31 22:12:14,912 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=318, PETRI_PLACES=103, PETRI_TRANSITIONS=101} [2024-10-31 22:12:14,913 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 13 predicate places. [2024-10-31 22:12:14,913 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 101 transitions, 318 flow [2024-10-31 22:12:14,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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) [2024-10-31 22:12:14,915 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:14,915 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:14,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:12:14,915 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-31 22:12:14,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:14,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1495556499, now seen corresponding path program 1 times [2024-10-31 22:12:14,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:14,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646025220] [2024-10-31 22:12:14,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:14,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:14,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:15,043 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:15,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:15,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646025220] [2024-10-31 22:12:15,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646025220] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:12:15,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121660556] [2024-10-31 22:12:15,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:15,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:15,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:15,055 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:12:15,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:12:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:15,243 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:12:15,244 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:15,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:12:15,262 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:12:15,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2121660556] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:15,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:12:15,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2024-10-31 22:12:15,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109217681] [2024-10-31 22:12:15,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:15,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:15,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:15,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:15,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:12:15,284 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 104 [2024-10-31 22:12:15,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 101 transitions, 318 flow. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 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) [2024-10-31 22:12:15,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:15,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 104 [2024-10-31 22:12:15,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:17,344 INFO L124 PetriNetUnfolderBase]: 10678/21931 cut-off events. [2024-10-31 22:12:17,345 INFO L125 PetriNetUnfolderBase]: For 7264/7305 co-relation queries the response was YES. [2024-10-31 22:12:17,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44094 conditions, 21931 events. 10678/21931 cut-off events. For 7264/7305 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 205681 event pairs, 5129 based on Foata normal form. 177/20659 useless extension candidates. Maximal degree in co-relation 35577. Up to 9166 conditions per place. [2024-10-31 22:12:17,677 INFO L140 encePairwiseOnDemand]: 99/104 looper letters, 99 selfloop transitions, 4 changer transitions 0/147 dead transitions. [2024-10-31 22:12:17,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 147 transitions, 682 flow [2024-10-31 22:12:17,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:17,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:17,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 215 transitions. [2024-10-31 22:12:17,679 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6891025641025641 [2024-10-31 22:12:17,679 INFO L175 Difference]: Start difference. First operand has 103 places, 101 transitions, 318 flow. Second operand 3 states and 215 transitions. [2024-10-31 22:12:17,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 147 transitions, 682 flow [2024-10-31 22:12:17,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 147 transitions, 674 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:12:17,691 INFO L231 Difference]: Finished difference. Result has 105 places, 104 transitions, 340 flow [2024-10-31 22:12:17,692 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=105, PETRI_TRANSITIONS=104} [2024-10-31 22:12:17,694 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 15 predicate places. [2024-10-31 22:12:17,694 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 104 transitions, 340 flow [2024-10-31 22:12:17,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 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) [2024-10-31 22:12:17,695 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:17,695 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:17,715 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-31 22:12:17,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:17,899 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-31 22:12:17,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:17,900 INFO L85 PathProgramCache]: Analyzing trace with hash -882127536, now seen corresponding path program 1 times [2024-10-31 22:12:17,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:17,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189801800] [2024-10-31 22:12:17,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:17,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:17,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:18,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:18,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:18,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189801800] [2024-10-31 22:12:18,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189801800] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:12:18,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398238862] [2024-10-31 22:12:18,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:18,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:18,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:18,024 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:12:18,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 22:12:18,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:18,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:12:18,223 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:18,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:18,261 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:12:18,312 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:18,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398238862] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:12:18,313 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:12:18,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-10-31 22:12:18,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669409036] [2024-10-31 22:12:18,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:12:18,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:12:18,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:18,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:12:18,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:12:18,334 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 104 [2024-10-31 22:12:18,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 104 transitions, 340 flow. Second operand has 10 states, 10 states have (on average 48.9) internal successors, (489), 10 states have internal predecessors, (489), 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) [2024-10-31 22:12:18,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:18,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 104 [2024-10-31 22:12:18,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:18,864 INFO L124 PetriNetUnfolderBase]: 1021/2256 cut-off events. [2024-10-31 22:12:18,865 INFO L125 PetriNetUnfolderBase]: For 1422/1424 co-relation queries the response was YES. [2024-10-31 22:12:18,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5153 conditions, 2256 events. 1021/2256 cut-off events. For 1422/1424 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 15178 event pairs, 26 based on Foata normal form. 172/2360 useless extension candidates. Maximal degree in co-relation 5142. Up to 886 conditions per place. [2024-10-31 22:12:18,884 INFO L140 encePairwiseOnDemand]: 100/104 looper letters, 108 selfloop transitions, 5 changer transitions 0/143 dead transitions. [2024-10-31 22:12:18,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 143 transitions, 671 flow [2024-10-31 22:12:18,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:12:18,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-31 22:12:18,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 429 transitions. [2024-10-31 22:12:18,886 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5892857142857143 [2024-10-31 22:12:18,887 INFO L175 Difference]: Start difference. First operand has 105 places, 104 transitions, 340 flow. Second operand 7 states and 429 transitions. [2024-10-31 22:12:18,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 143 transitions, 671 flow [2024-10-31 22:12:18,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 143 transitions, 659 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:12:18,893 INFO L231 Difference]: Finished difference. Result has 84 places, 66 transitions, 211 flow [2024-10-31 22:12:18,893 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=211, PETRI_PLACES=84, PETRI_TRANSITIONS=66} [2024-10-31 22:12:18,894 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, -6 predicate places. [2024-10-31 22:12:18,894 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 66 transitions, 211 flow [2024-10-31 22:12:18,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 48.9) internal successors, (489), 10 states have internal predecessors, (489), 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) [2024-10-31 22:12:18,895 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:18,895 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1] [2024-10-31 22:12:18,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-31 22:12:19,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b0004-f792-4af5-b26a-3b60fed9048f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-10-31 22:12:19,098 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-31 22:12:19,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:19,099 INFO L85 PathProgramCache]: Analyzing trace with hash -68551092, now seen corresponding path program 1 times [2024-10-31 22:12:19,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:19,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241245841] [2024-10-31 22:12:19,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:19,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:19,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:19,157 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:12:19,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:19,184 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:12:19,186 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:12:19,186 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2024-10-31 22:12:19,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 19 remaining) [2024-10-31 22:12:19,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 19 remaining) [2024-10-31 22:12:19,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 19 remaining) [2024-10-31 22:12:19,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 19 remaining) [2024-10-31 22:12:19,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 19 remaining) [2024-10-31 22:12:19,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 19 remaining) [2024-10-31 22:12:19,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 19 remaining) [2024-10-31 22:12:19,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 19 remaining) [2024-10-31 22:12:19,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 19 remaining) [2024-10-31 22:12:19,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 19 remaining) [2024-10-31 22:12:19,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 19 remaining) [2024-10-31 22:12:19,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 19 remaining) [2024-10-31 22:12:19,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 19 remaining) [2024-10-31 22:12:19,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 19 remaining) [2024-10-31 22:12:19,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 19 remaining) [2024-10-31 22:12:19,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 19 remaining) [2024-10-31 22:12:19,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 19 remaining) [2024-10-31 22:12:19,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 19 remaining) [2024-10-31 22:12:19,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:12:19,191 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:19,192 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:12:19,192 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-31 22:12:19,239 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-31 22:12:19,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 137 transitions, 301 flow [2024-10-31 22:12:19,292 INFO L124 PetriNetUnfolderBase]: 46/272 cut-off events. [2024-10-31 22:12:19,292 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-10-31 22:12:19,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 272 events. 46/272 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1133 event pairs, 1 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 190. Up to 12 conditions per place. [2024-10-31 22:12:19,295 INFO L82 GeneralOperation]: Start removeDead. Operand has 118 places, 137 transitions, 301 flow [2024-10-31 22:12:19,299 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 137 transitions, 301 flow [2024-10-31 22:12:19,301 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:12:19,302 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;@528b26c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:12:19,302 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-10-31 22:12:19,307 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:12:19,308 INFO L124 PetriNetUnfolderBase]: 1/10 cut-off events. [2024-10-31 22:12:19,308 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:12:19,308 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:19,308 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-31 22:12:19,309 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-31 22:12:19,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:19,309 INFO L85 PathProgramCache]: Analyzing trace with hash 703988775, now seen corresponding path program 1 times [2024-10-31 22:12:19,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:19,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911136512] [2024-10-31 22:12:19,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:19,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:19,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:19,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:19,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911136512] [2024-10-31 22:12:19,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911136512] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:19,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:19,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:19,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922336311] [2024-10-31 22:12:19,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:19,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:12:19,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:19,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:12:19,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:12:19,429 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 137 [2024-10-31 22:12:19,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 137 transitions, 301 flow. Second operand has 4 states, 4 states have (on average 62.25) internal successors, (249), 4 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:19,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:19,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 137 [2024-10-31 22:12:19,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand