./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/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_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/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_9c51cb60-84a6-477a-93ad-740ece21e9b1/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 3b43103ca9a91605874c4d895f03c4116805b9b245b91cffe9bd63255503e5a0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:03:19,876 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:03:19,963 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 22:03:19,968 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:03:19,971 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:03:20,009 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:03:20,012 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:03:20,012 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:03:20,013 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:03:20,014 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:03:20,014 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:03:20,015 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:03:20,016 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:03:20,017 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:03:20,020 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:03:20,020 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:03:20,021 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:03:20,021 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:03:20,021 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:03:20,022 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:03:20,022 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:03:20,023 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:03:20,023 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:03:20,023 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:03:20,024 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:03:20,024 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 22:03:20,024 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:03:20,025 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:03:20,025 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:03:20,025 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:03:20,026 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:03:20,026 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:03:20,027 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:03:20,027 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:03:20,027 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:03:20,028 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:03:20,028 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:03:20,028 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:03:20,029 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:03:20,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:03:20,029 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:03:20,030 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:03:20,030 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:03:20,031 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:03:20,031 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_9c51cb60-84a6-477a-93ad-740ece21e9b1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b43103ca9a91605874c4d895f03c4116805b9b245b91cffe9bd63255503e5a0 [2024-10-31 22:03:20,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:03:20,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:03:20,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:03:20,338 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:03:20,338 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:03:20,340 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c Unable to find full path for "g++" [2024-10-31 22:03:22,565 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:03:22,864 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:03:22,864 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2024-10-31 22:03:22,878 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/data/38f63df9f/8001160a047b4fa4b2ccec7610d439c6/FLAG191e7013b [2024-10-31 22:03:23,159 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/data/38f63df9f/8001160a047b4fa4b2ccec7610d439c6 [2024-10-31 22:03:23,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:03:23,164 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:03:23,166 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:03:23,167 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:03:23,173 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:03:23,174 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:03:23" (1/1) ... [2024-10-31 22:03:23,177 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@357dfb49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:23, skipping insertion in model container [2024-10-31 22:03:23,177 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:03:23" (1/1) ... [2024-10-31 22:03:23,209 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:03:23,493 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:03:23,509 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:03:23,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:03:23,571 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:03:23,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:23 WrapperNode [2024-10-31 22:03:23,572 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:03:23,573 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:03:23,574 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:03:23,574 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:03:23,581 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:23" (1/1) ... [2024-10-31 22:03:23,592 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:23" (1/1) ... [2024-10-31 22:03:23,641 INFO L138 Inliner]: procedures = 26, calls = 52, calls flagged for inlining = 23, calls inlined = 35, statements flattened = 492 [2024-10-31 22:03:23,642 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:03:23,643 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:03:23,643 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:03:23,643 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:03:23,656 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:23" (1/1) ... [2024-10-31 22:03:23,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:23" (1/1) ... [2024-10-31 22:03:23,667 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:23" (1/1) ... [2024-10-31 22:03:23,692 INFO L175 MemorySlicer]: Split 26 memory accesses to 3 slices as follows [2, 15, 9]. 58 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 6 writes are split as follows [0, 3, 3]. [2024-10-31 22:03:23,692 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:23" (1/1) ... [2024-10-31 22:03:23,693 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:23" (1/1) ... [2024-10-31 22:03:23,707 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:23" (1/1) ... [2024-10-31 22:03:23,713 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:23" (1/1) ... [2024-10-31 22:03:23,716 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:23" (1/1) ... [2024-10-31 22:03:23,719 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:23" (1/1) ... [2024-10-31 22:03:23,724 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:03:23,725 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:03:23,725 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:03:23,725 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:03:23,726 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:23" (1/1) ... [2024-10-31 22:03:23,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:03:23,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:23,769 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:23,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:03:23,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:03:23,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:03:23,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:03:23,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-31 22:03:23,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:03:23,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:03:23,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-31 22:03:23,811 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-31 22:03:23,812 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-31 22:03:23,812 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-31 22:03:23,812 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-31 22:03:23,812 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-31 22:03:23,812 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-31 22:03:23,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:03:23,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:03:23,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:03:23,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:03:23,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:03:23,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:03:23,819 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 22:03:24,046 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:03:24,049 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:03:24,993 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:03:24,994 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:03:25,579 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:03:25,580 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-31 22:03:25,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:03:25 BoogieIcfgContainer [2024-10-31 22:03:25,580 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:03:25,583 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:03:25,583 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:03:25,587 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:03:25,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:03:23" (1/3) ... [2024-10-31 22:03:25,588 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c49f3a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:03:25, skipping insertion in model container [2024-10-31 22:03:25,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:23" (2/3) ... [2024-10-31 22:03:25,589 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c49f3a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:03:25, skipping insertion in model container [2024-10-31 22:03:25,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:03:25" (3/3) ... [2024-10-31 22:03:25,590 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-subst.wvr.c [2024-10-31 22:03:25,611 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:03:25,611 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-10-31 22:03:25,611 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:03:25,710 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-31 22:03:25,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 135 places, 140 transitions, 301 flow [2024-10-31 22:03:25,838 INFO L124 PetriNetUnfolderBase]: 15/137 cut-off events. [2024-10-31 22:03:25,838 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 22:03:25,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 137 events. 15/137 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 404 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2024-10-31 22:03:25,847 INFO L82 GeneralOperation]: Start removeDead. Operand has 135 places, 140 transitions, 301 flow [2024-10-31 22:03:25,854 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 135 transitions, 285 flow [2024-10-31 22:03:25,865 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:03:25,873 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;@5eb41e10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:03:25,873 INFO L334 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2024-10-31 22:03:25,877 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:03:25,877 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-10-31 22:03:25,877 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:03:25,877 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:25,878 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-10-31 22:03:25,879 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-31 22:03:25,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:25,884 INFO L85 PathProgramCache]: Analyzing trace with hash 46888, now seen corresponding path program 1 times [2024-10-31 22:03:25,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:25,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764586669] [2024-10-31 22:03:25,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:25,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:26,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:26,196 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 22:03:26,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:26,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764586669] [2024-10-31 22:03:26,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764586669] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:26,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:26,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:03:26,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367225302] [2024-10-31 22:03:26,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:26,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:26,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:26,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:26,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:26,276 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-10-31 22:03:26,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 135 transitions, 285 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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 22:03:26,325 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:26,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-10-31 22:03:26,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:27,858 INFO L124 PetriNetUnfolderBase]: 4133/8026 cut-off events. [2024-10-31 22:03:27,859 INFO L125 PetriNetUnfolderBase]: For 237/237 co-relation queries the response was YES. [2024-10-31 22:03:27,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13743 conditions, 8026 events. 4133/8026 cut-off events. For 237/237 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 65987 event pairs, 2732 based on Foata normal form. 2/6384 useless extension candidates. Maximal degree in co-relation 13014. Up to 5498 conditions per place. [2024-10-31 22:03:27,932 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 61 selfloop transitions, 1 changer transitions 0/133 dead transitions. [2024-10-31 22:03:27,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 133 transitions, 405 flow [2024-10-31 22:03:27,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:27,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:03:27,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2024-10-31 22:03:27,949 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.680952380952381 [2024-10-31 22:03:27,952 INFO L175 Difference]: Start difference. First operand has 130 places, 135 transitions, 285 flow. Second operand 3 states and 286 transitions. [2024-10-31 22:03:27,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 133 transitions, 405 flow [2024-10-31 22:03:27,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 133 transitions, 396 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:03:27,968 INFO L231 Difference]: Finished difference. Result has 125 places, 133 transitions, 274 flow [2024-10-31 22:03:27,970 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=125, PETRI_TRANSITIONS=133} [2024-10-31 22:03:27,975 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -5 predicate places. [2024-10-31 22:03:27,975 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 133 transitions, 274 flow [2024-10-31 22:03:27,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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 22:03:27,976 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:27,976 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-31 22:03:27,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:03:27,977 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-31 22:03:27,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:27,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1455072, now seen corresponding path program 1 times [2024-10-31 22:03:27,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:27,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019813561] [2024-10-31 22:03:27,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:27,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:27,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:28,077 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 22:03:28,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:28,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019813561] [2024-10-31 22:03:28,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019813561] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:28,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:28,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:03:28,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166769553] [2024-10-31 22:03:28,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:28,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:28,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:28,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:28,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:28,142 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-10-31 22:03:28,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 133 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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 22:03:28,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:28,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-10-31 22:03:28,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:29,256 INFO L124 PetriNetUnfolderBase]: 4133/8024 cut-off events. [2024-10-31 22:03:29,256 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-10-31 22:03:29,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13658 conditions, 8024 events. 4133/8024 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 66088 event pairs, 2732 based on Foata normal form. 0/6382 useless extension candidates. Maximal degree in co-relation 13652. Up to 5496 conditions per place. [2024-10-31 22:03:29,335 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 59 selfloop transitions, 1 changer transitions 0/131 dead transitions. [2024-10-31 22:03:29,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 131 transitions, 390 flow [2024-10-31 22:03:29,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:29,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:03:29,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-10-31 22:03:29,340 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6761904761904762 [2024-10-31 22:03:29,340 INFO L175 Difference]: Start difference. First operand has 125 places, 133 transitions, 274 flow. Second operand 3 states and 284 transitions. [2024-10-31 22:03:29,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 131 transitions, 390 flow [2024-10-31 22:03:29,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 131 transitions, 389 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:03:29,348 INFO L231 Difference]: Finished difference. Result has 124 places, 131 transitions, 271 flow [2024-10-31 22:03:29,348 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=271, PETRI_PLACES=124, PETRI_TRANSITIONS=131} [2024-10-31 22:03:29,349 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -6 predicate places. [2024-10-31 22:03:29,349 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 131 transitions, 271 flow [2024-10-31 22:03:29,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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 22:03:29,350 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:29,350 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-31 22:03:29,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:03:29,352 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-31 22:03:29,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:29,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1398373587, now seen corresponding path program 1 times [2024-10-31 22:03:29,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:29,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914337396] [2024-10-31 22:03:29,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:29,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:29,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:29,558 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 22:03:29,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:29,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914337396] [2024-10-31 22:03:29,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914337396] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:29,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:29,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:03:29,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832206490] [2024-10-31 22:03:29,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:29,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:03:29,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:29,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:03:29,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:03:29,586 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-10-31 22:03:29,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 131 transitions, 271 flow. Second operand has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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 22:03:29,588 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:29,588 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-10-31 22:03:29,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:31,023 INFO L124 PetriNetUnfolderBase]: 4136/8036 cut-off events. [2024-10-31 22:03:31,024 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-10-31 22:03:31,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13686 conditions, 8036 events. 4136/8036 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 66179 event pairs, 2732 based on Foata normal form. 3/6394 useless extension candidates. Maximal degree in co-relation 13679. Up to 5506 conditions per place. [2024-10-31 22:03:31,085 INFO L140 encePairwiseOnDemand]: 122/140 looper letters, 63 selfloop transitions, 12 changer transitions 0/140 dead transitions. [2024-10-31 22:03:31,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 140 transitions, 439 flow [2024-10-31 22:03:31,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:03:31,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:03:31,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 369 transitions. [2024-10-31 22:03:31,092 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6589285714285714 [2024-10-31 22:03:31,093 INFO L175 Difference]: Start difference. First operand has 124 places, 131 transitions, 271 flow. Second operand 4 states and 369 transitions. [2024-10-31 22:03:31,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 140 transitions, 439 flow [2024-10-31 22:03:31,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 140 transitions, 438 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:03:31,097 INFO L231 Difference]: Finished difference. Result has 128 places, 140 transitions, 357 flow [2024-10-31 22:03:31,098 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=357, PETRI_PLACES=128, PETRI_TRANSITIONS=140} [2024-10-31 22:03:31,099 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -2 predicate places. [2024-10-31 22:03:31,099 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 140 transitions, 357 flow [2024-10-31 22:03:31,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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 22:03:31,100 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:31,100 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-31 22:03:31,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:03:31,101 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-31 22:03:31,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:31,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1398373678, now seen corresponding path program 1 times [2024-10-31 22:03:31,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:31,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324129288] [2024-10-31 22:03:31,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:31,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:31,183 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 22:03:31,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:31,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324129288] [2024-10-31 22:03:31,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324129288] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:31,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:31,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:03:31,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194619343] [2024-10-31 22:03:31,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:31,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:31,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:31,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:31,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:31,201 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-10-31 22:03:31,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 140 transitions, 357 flow. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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 22:03:31,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:31,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-10-31 22:03:31,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:32,576 INFO L124 PetriNetUnfolderBase]: 4136/8034 cut-off events. [2024-10-31 22:03:32,576 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2024-10-31 22:03:32,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13718 conditions, 8034 events. 4136/8034 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 66112 event pairs, 2732 based on Foata normal form. 2/6398 useless extension candidates. Maximal degree in co-relation 13709. Up to 5507 conditions per place. [2024-10-31 22:03:32,639 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 70 selfloop transitions, 1 changer transitions 0/138 dead transitions. [2024-10-31 22:03:32,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 138 transitions, 495 flow [2024-10-31 22:03:32,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:32,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:03:32,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2024-10-31 22:03:32,644 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.680952380952381 [2024-10-31 22:03:32,644 INFO L175 Difference]: Start difference. First operand has 128 places, 140 transitions, 357 flow. Second operand 3 states and 286 transitions. [2024-10-31 22:03:32,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 138 transitions, 495 flow [2024-10-31 22:03:32,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 138 transitions, 486 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:03:32,650 INFO L231 Difference]: Finished difference. Result has 127 places, 138 transitions, 346 flow [2024-10-31 22:03:32,651 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=127, PETRI_TRANSITIONS=138} [2024-10-31 22:03:32,655 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -3 predicate places. [2024-10-31 22:03:32,656 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 138 transitions, 346 flow [2024-10-31 22:03:32,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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 22:03:32,656 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:32,656 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:03:32,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:03:32,657 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-31 22:03:32,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:32,657 INFO L85 PathProgramCache]: Analyzing trace with hash 399912571, now seen corresponding path program 1 times [2024-10-31 22:03:32,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:32,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156117736] [2024-10-31 22:03:32,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:32,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:32,715 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 22:03:32,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:32,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156117736] [2024-10-31 22:03:32,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156117736] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:32,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:32,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:03:32,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487829513] [2024-10-31 22:03:32,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:32,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:32,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:32,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:32,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:32,728 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-10-31 22:03:32,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 138 transitions, 346 flow. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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 22:03:32,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:32,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-10-31 22:03:32,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:33,809 INFO L124 PetriNetUnfolderBase]: 4136/8032 cut-off events. [2024-10-31 22:03:33,809 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2024-10-31 22:03:33,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13709 conditions, 8032 events. 4136/8032 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 66163 event pairs, 2732 based on Foata normal form. 1/6396 useless extension candidates. Maximal degree in co-relation 13699. Up to 5505 conditions per place. [2024-10-31 22:03:33,883 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 68 selfloop transitions, 1 changer transitions 0/136 dead transitions. [2024-10-31 22:03:33,883 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 136 transitions, 480 flow [2024-10-31 22:03:33,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:33,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:03:33,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-10-31 22:03:33,885 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6761904761904762 [2024-10-31 22:03:33,885 INFO L175 Difference]: Start difference. First operand has 127 places, 138 transitions, 346 flow. Second operand 3 states and 284 transitions. [2024-10-31 22:03:33,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 136 transitions, 480 flow [2024-10-31 22:03:33,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 136 transitions, 479 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:03:33,891 INFO L231 Difference]: Finished difference. Result has 126 places, 136 transitions, 343 flow [2024-10-31 22:03:33,892 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=343, PETRI_PLACES=126, PETRI_TRANSITIONS=136} [2024-10-31 22:03:33,892 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -4 predicate places. [2024-10-31 22:03:33,895 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 136 transitions, 343 flow [2024-10-31 22:03:33,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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 22:03:33,896 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:33,896 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:33,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:03:33,896 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-31 22:03:33,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:33,897 INFO L85 PathProgramCache]: Analyzing trace with hash 2061233645, now seen corresponding path program 1 times [2024-10-31 22:03:33,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:33,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296725516] [2024-10-31 22:03:33,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:33,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:33,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:34,036 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:34,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:34,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296725516] [2024-10-31 22:03:34,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296725516] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:03:34,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314620710] [2024-10-31 22:03:34,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:34,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:03:34,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:34,042 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:03:34,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:03:34,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:34,154 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:03:34,158 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:34,215 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:34,215 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:03:34,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314620710] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:34,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:03:34,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-10-31 22:03:34,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713203189] [2024-10-31 22:03:34,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:34,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:03:34,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:34,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:03:34,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:03:34,247 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-10-31 22:03:34,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 136 transitions, 343 flow. Second operand has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 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 22:03:34,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:34,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-10-31 22:03:34,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:35,416 INFO L124 PetriNetUnfolderBase]: 4140/8022 cut-off events. [2024-10-31 22:03:35,416 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2024-10-31 22:03:35,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13706 conditions, 8022 events. 4140/8022 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 65806 event pairs, 2736 based on Foata normal form. 3/6399 useless extension candidates. Maximal degree in co-relation 13695. Up to 5497 conditions per place. [2024-10-31 22:03:35,498 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 51 selfloop transitions, 21 changer transitions 0/133 dead transitions. [2024-10-31 22:03:35,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 133 transitions, 475 flow [2024-10-31 22:03:35,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:03:35,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:03:35,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 507 transitions. [2024-10-31 22:03:35,500 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6035714285714285 [2024-10-31 22:03:35,501 INFO L175 Difference]: Start difference. First operand has 126 places, 136 transitions, 343 flow. Second operand 6 states and 507 transitions. [2024-10-31 22:03:35,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 133 transitions, 475 flow [2024-10-31 22:03:35,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 133 transitions, 474 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:03:35,504 INFO L231 Difference]: Finished difference. Result has 127 places, 133 transitions, 372 flow [2024-10-31 22:03:35,505 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=372, PETRI_PLACES=127, PETRI_TRANSITIONS=133} [2024-10-31 22:03:35,506 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -3 predicate places. [2024-10-31 22:03:35,508 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 133 transitions, 372 flow [2024-10-31 22:03:35,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 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 22:03:35,509 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:35,509 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:35,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:03:35,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:03:35,710 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-31 22:03:35,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:35,711 INFO L85 PathProgramCache]: Analyzing trace with hash 2063938383, now seen corresponding path program 1 times [2024-10-31 22:03:35,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:35,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633106453] [2024-10-31 22:03:35,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:35,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:35,785 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 22:03:35,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:35,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633106453] [2024-10-31 22:03:35,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633106453] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:35,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:35,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:03:35,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150023277] [2024-10-31 22:03:35,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:35,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:35,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:35,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:35,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:35,801 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-10-31 22:03:35,802 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 133 transitions, 372 flow. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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 22:03:35,802 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:35,802 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-10-31 22:03:35,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:36,826 INFO L124 PetriNetUnfolderBase]: 4140/8020 cut-off events. [2024-10-31 22:03:36,826 INFO L125 PetriNetUnfolderBase]: For 78/78 co-relation queries the response was YES. [2024-10-31 22:03:36,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13724 conditions, 8020 events. 4140/8020 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 65808 event pairs, 2736 based on Foata normal form. 2/6400 useless extension candidates. Maximal degree in co-relation 13713. Up to 5513 conditions per place. [2024-10-31 22:03:36,894 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 70 selfloop transitions, 1 changer transitions 0/131 dead transitions. [2024-10-31 22:03:36,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 131 transitions, 510 flow [2024-10-31 22:03:36,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:36,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:03:36,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2024-10-31 22:03:36,897 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.680952380952381 [2024-10-31 22:03:36,897 INFO L175 Difference]: Start difference. First operand has 127 places, 133 transitions, 372 flow. Second operand 3 states and 286 transitions. [2024-10-31 22:03:36,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 131 transitions, 510 flow [2024-10-31 22:03:36,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 131 transitions, 465 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-10-31 22:03:36,902 INFO L231 Difference]: Finished difference. Result has 123 places, 131 transitions, 325 flow [2024-10-31 22:03:36,902 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=325, PETRI_PLACES=123, PETRI_TRANSITIONS=131} [2024-10-31 22:03:36,903 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -7 predicate places. [2024-10-31 22:03:36,903 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 131 transitions, 325 flow [2024-10-31 22:03:36,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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 22:03:36,904 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:36,904 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2024-10-31 22:03:36,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:03:36,904 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-31 22:03:36,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:36,905 INFO L85 PathProgramCache]: Analyzing trace with hash -526264928, now seen corresponding path program 1 times [2024-10-31 22:03:36,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:36,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404898496] [2024-10-31 22:03:36,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:36,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:36,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:36,997 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:36,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:36,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404898496] [2024-10-31 22:03:36,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404898496] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:03:36,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238520344] [2024-10-31 22:03:36,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:36,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:03:36,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:37,001 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:03:37,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:03:37,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:37,109 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:03:37,110 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:37,144 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:37,144 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:03:37,200 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:37,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238520344] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:03:37,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:03:37,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-10-31 22:03:37,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009526837] [2024-10-31 22:03:37,201 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:03:37,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-31 22:03:37,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:37,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-31 22:03:37,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:03:37,263 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-10-31 22:03:37,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 131 transitions, 325 flow. Second operand has 12 states, 12 states have (on average 73.16666666666667) internal successors, (878), 12 states have internal predecessors, (878), 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 22:03:37,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:37,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-10-31 22:03:37,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:38,538 INFO L124 PetriNetUnfolderBase]: 4149/8056 cut-off events. [2024-10-31 22:03:38,539 INFO L125 PetriNetUnfolderBase]: For 102/102 co-relation queries the response was YES. [2024-10-31 22:03:38,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13791 conditions, 8056 events. 4149/8056 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 65984 event pairs, 2736 based on Foata normal form. 9/6435 useless extension candidates. Maximal degree in co-relation 13780. Up to 5518 conditions per place. [2024-10-31 22:03:38,614 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 60 selfloop transitions, 39 changer transitions 0/158 dead transitions. [2024-10-31 22:03:38,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 158 transitions, 640 flow [2024-10-31 22:03:38,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:03:38,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-31 22:03:38,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 828 transitions. [2024-10-31 22:03:38,618 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5914285714285714 [2024-10-31 22:03:38,618 INFO L175 Difference]: Start difference. First operand has 123 places, 131 transitions, 325 flow. Second operand 10 states and 828 transitions. [2024-10-31 22:03:38,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 158 transitions, 640 flow [2024-10-31 22:03:38,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 158 transitions, 639 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:03:38,625 INFO L231 Difference]: Finished difference. Result has 134 places, 158 transitions, 573 flow [2024-10-31 22:03:38,625 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=573, PETRI_PLACES=134, PETRI_TRANSITIONS=158} [2024-10-31 22:03:38,626 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 4 predicate places. [2024-10-31 22:03:38,626 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 158 transitions, 573 flow [2024-10-31 22:03:38,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 73.16666666666667) internal successors, (878), 12 states have internal predecessors, (878), 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 22:03:38,628 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:38,628 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:38,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:38,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:03:38,829 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-31 22:03:38,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:38,830 INFO L85 PathProgramCache]: Analyzing trace with hash -442418035, now seen corresponding path program 1 times [2024-10-31 22:03:38,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:38,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303435423] [2024-10-31 22:03:38,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:38,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:38,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:38,917 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 22:03:38,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:38,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303435423] [2024-10-31 22:03:38,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303435423] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:38,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:38,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:03:38,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518673157] [2024-10-31 22:03:38,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:38,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:38,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:38,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:38,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:38,983 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-10-31 22:03:38,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 158 transitions, 573 flow. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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 22:03:38,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:38,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-10-31 22:03:38,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:39,989 INFO L124 PetriNetUnfolderBase]: 4149/8054 cut-off events. [2024-10-31 22:03:39,989 INFO L125 PetriNetUnfolderBase]: For 153/153 co-relation queries the response was YES. [2024-10-31 22:03:40,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13855 conditions, 8054 events. 4149/8054 cut-off events. For 153/153 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 65915 event pairs, 2736 based on Foata normal form. 1/6434 useless extension candidates. Maximal degree in co-relation 13841. Up to 5538 conditions per place. [2024-10-31 22:03:40,063 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 95 selfloop transitions, 1 changer transitions 0/156 dead transitions. [2024-10-31 22:03:40,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 156 transitions, 761 flow [2024-10-31 22:03:40,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:40,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:03:40,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-10-31 22:03:40,065 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6761904761904762 [2024-10-31 22:03:40,066 INFO L175 Difference]: Start difference. First operand has 134 places, 158 transitions, 573 flow. Second operand 3 states and 284 transitions. [2024-10-31 22:03:40,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 156 transitions, 761 flow [2024-10-31 22:03:40,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 156 transitions, 728 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-10-31 22:03:40,071 INFO L231 Difference]: Finished difference. Result has 132 places, 156 transitions, 538 flow [2024-10-31 22:03:40,072 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=538, PETRI_PLACES=132, PETRI_TRANSITIONS=156} [2024-10-31 22:03:40,072 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 2 predicate places. [2024-10-31 22:03:40,073 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 156 transitions, 538 flow [2024-10-31 22:03:40,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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 22:03:40,073 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:40,074 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:40,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:03:40,074 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-31 22:03:40,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:40,075 INFO L85 PathProgramCache]: Analyzing trace with hash 577326466, now seen corresponding path program 1 times [2024-10-31 22:03:40,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:40,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733167488] [2024-10-31 22:03:40,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:40,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:40,179 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 22:03:40,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:40,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733167488] [2024-10-31 22:03:40,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733167488] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:40,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:40,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:03:40,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319421736] [2024-10-31 22:03:40,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:40,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:03:40,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:40,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:03:40,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:03:40,202 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-10-31 22:03:40,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 156 transitions, 538 flow. Second operand has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 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 22:03:40,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:40,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-10-31 22:03:40,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:41,090 INFO L124 PetriNetUnfolderBase]: 4152/8066 cut-off events. [2024-10-31 22:03:41,091 INFO L125 PetriNetUnfolderBase]: For 120/120 co-relation queries the response was YES. [2024-10-31 22:03:41,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13869 conditions, 8066 events. 4152/8066 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66051 event pairs, 2736 based on Foata normal form. 3/6445 useless extension candidates. Maximal degree in co-relation 13853. Up to 5548 conditions per place. [2024-10-31 22:03:41,165 INFO L140 encePairwiseOnDemand]: 122/140 looper letters, 99 selfloop transitions, 12 changer transitions 0/165 dead transitions. [2024-10-31 22:03:41,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 165 transitions, 778 flow [2024-10-31 22:03:41,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:03:41,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:03:41,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 369 transitions. [2024-10-31 22:03:41,167 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6589285714285714 [2024-10-31 22:03:41,167 INFO L175 Difference]: Start difference. First operand has 132 places, 156 transitions, 538 flow. Second operand 4 states and 369 transitions. [2024-10-31 22:03:41,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 165 transitions, 778 flow [2024-10-31 22:03:41,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 165 transitions, 777 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:03:41,172 INFO L231 Difference]: Finished difference. Result has 136 places, 165 transitions, 624 flow [2024-10-31 22:03:41,172 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=537, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=624, PETRI_PLACES=136, PETRI_TRANSITIONS=165} [2024-10-31 22:03:41,173 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 6 predicate places. [2024-10-31 22:03:41,173 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 165 transitions, 624 flow [2024-10-31 22:03:41,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 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 22:03:41,174 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:41,174 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:41,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:03:41,174 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-31 22:03:41,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:41,175 INFO L85 PathProgramCache]: Analyzing trace with hash 2085231517, now seen corresponding path program 1 times [2024-10-31 22:03:41,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:41,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998860899] [2024-10-31 22:03:41,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:41,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:41,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:41,299 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:03:41,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:41,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998860899] [2024-10-31 22:03:41,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998860899] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:41,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:41,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:03:41,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013901755] [2024-10-31 22:03:41,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:41,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:03:41,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:41,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:03:41,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:03:41,317 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-10-31 22:03:41,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 165 transitions, 624 flow. Second operand has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 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 22:03:41,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:41,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-10-31 22:03:41,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:42,140 INFO L124 PetriNetUnfolderBase]: 4151/8065 cut-off events. [2024-10-31 22:03:42,141 INFO L125 PetriNetUnfolderBase]: For 135/135 co-relation queries the response was YES. [2024-10-31 22:03:42,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13898 conditions, 8065 events. 4151/8065 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66014 event pairs, 2736 based on Foata normal form. 1/6448 useless extension candidates. Maximal degree in co-relation 13880. Up to 5544 conditions per place. [2024-10-31 22:03:42,218 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 101 selfloop transitions, 3 changer transitions 0/164 dead transitions. [2024-10-31 22:03:42,218 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 164 transitions, 828 flow [2024-10-31 22:03:42,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:03:42,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:03:42,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-10-31 22:03:42,220 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-10-31 22:03:42,220 INFO L175 Difference]: Start difference. First operand has 136 places, 165 transitions, 624 flow. Second operand 4 states and 359 transitions. [2024-10-31 22:03:42,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 164 transitions, 828 flow [2024-10-31 22:03:42,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 164 transitions, 819 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:03:42,227 INFO L231 Difference]: Finished difference. Result has 138 places, 164 transitions, 617 flow [2024-10-31 22:03:42,227 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=611, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=617, PETRI_PLACES=138, PETRI_TRANSITIONS=164} [2024-10-31 22:03:42,228 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 8 predicate places. [2024-10-31 22:03:42,228 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 164 transitions, 617 flow [2024-10-31 22:03:42,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 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 22:03:42,229 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:42,229 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1] [2024-10-31 22:03:42,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:03:42,229 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-31 22:03:42,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:42,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1543471110, now seen corresponding path program 2 times [2024-10-31 22:03:42,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:42,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40063419] [2024-10-31 22:03:42,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:42,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:42,460 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:42,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:42,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40063419] [2024-10-31 22:03:42,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40063419] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:03:42,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850311822] [2024-10-31 22:03:42,465 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:03:42,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:03:42,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:42,468 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:03:42,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:03:42,578 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-31 22:03:42,578 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:03:42,579 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:03:42,581 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:42,648 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-31 22:03:42,648 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:03:42,706 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-31 22:03:42,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850311822] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:03:42,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:03:42,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 3, 3] total 13 [2024-10-31 22:03:42,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089646495] [2024-10-31 22:03:42,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:03:42,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-31 22:03:42,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:42,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-31 22:03:42,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-10-31 22:03:42,781 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-10-31 22:03:42,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 164 transitions, 617 flow. Second operand has 14 states, 14 states have (on average 73.21428571428571) internal successors, (1025), 14 states have internal predecessors, (1025), 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 22:03:42,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:42,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-10-31 22:03:42,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:44,141 INFO L124 PetriNetUnfolderBase]: 4154/8074 cut-off events. [2024-10-31 22:03:44,141 INFO L125 PetriNetUnfolderBase]: For 193/193 co-relation queries the response was YES. [2024-10-31 22:03:44,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13919 conditions, 8074 events. 4154/8074 cut-off events. For 193/193 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66126 event pairs, 2736 based on Foata normal form. 6/6459 useless extension candidates. Maximal degree in co-relation 13900. Up to 5517 conditions per place. [2024-10-31 22:03:44,246 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 57 selfloop transitions, 56 changer transitions 0/170 dead transitions. [2024-10-31 22:03:44,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 170 transitions, 870 flow [2024-10-31 22:03:44,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-31 22:03:44,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-31 22:03:44,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1118 transitions. [2024-10-31 22:03:44,372 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5704081632653061 [2024-10-31 22:03:44,372 INFO L175 Difference]: Start difference. First operand has 138 places, 164 transitions, 617 flow. Second operand 14 states and 1118 transitions. [2024-10-31 22:03:44,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 170 transitions, 870 flow [2024-10-31 22:03:44,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 170 transitions, 830 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-31 22:03:44,378 INFO L231 Difference]: Finished difference. Result has 142 places, 170 transitions, 716 flow [2024-10-31 22:03:44,378 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=553, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=716, PETRI_PLACES=142, PETRI_TRANSITIONS=170} [2024-10-31 22:03:44,379 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 12 predicate places. [2024-10-31 22:03:44,379 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 170 transitions, 716 flow [2024-10-31 22:03:44,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 73.21428571428571) internal successors, (1025), 14 states have internal predecessors, (1025), 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 22:03:44,381 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:44,381 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:44,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:44,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:03:44,586 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-31 22:03:44,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:44,586 INFO L85 PathProgramCache]: Analyzing trace with hash 2147071415, now seen corresponding path program 1 times [2024-10-31 22:03:44,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:44,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914958152] [2024-10-31 22:03:44,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:44,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:44,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:44,774 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:03:44,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:44,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914958152] [2024-10-31 22:03:44,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914958152] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:44,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:44,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:03:44,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208451246] [2024-10-31 22:03:44,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:44,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:03:44,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:44,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:03:44,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:03:44,793 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-10-31 22:03:44,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 170 transitions, 716 flow. Second operand has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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 22:03:44,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:44,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-10-31 22:03:44,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:45,673 INFO L124 PetriNetUnfolderBase]: 4153/8073 cut-off events. [2024-10-31 22:03:45,673 INFO L125 PetriNetUnfolderBase]: For 171/171 co-relation queries the response was YES. [2024-10-31 22:03:45,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13947 conditions, 8073 events. 4153/8073 cut-off events. For 171/171 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66036 event pairs, 2736 based on Foata normal form. 0/6442 useless extension candidates. Maximal degree in co-relation 13933. Up to 5552 conditions per place. [2024-10-31 22:03:45,731 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 109 selfloop transitions, 3 changer transitions 0/169 dead transitions. [2024-10-31 22:03:45,731 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 169 transitions, 934 flow [2024-10-31 22:03:45,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:03:45,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:03:45,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-10-31 22:03:45,733 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-10-31 22:03:45,733 INFO L175 Difference]: Start difference. First operand has 142 places, 170 transitions, 716 flow. Second operand 4 states and 359 transitions. [2024-10-31 22:03:45,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 169 transitions, 934 flow [2024-10-31 22:03:45,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 169 transitions, 727 flow, removed 18 selfloop flow, removed 12 redundant places. [2024-10-31 22:03:45,739 INFO L231 Difference]: Finished difference. Result has 133 places, 169 transitions, 509 flow [2024-10-31 22:03:45,740 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=509, PETRI_PLACES=133, PETRI_TRANSITIONS=169} [2024-10-31 22:03:45,740 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 3 predicate places. [2024-10-31 22:03:45,740 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 169 transitions, 509 flow [2024-10-31 22:03:45,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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 22:03:45,741 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:45,741 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:45,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:03:45,742 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-31 22:03:45,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:45,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1056073208, now seen corresponding path program 1 times [2024-10-31 22:03:45,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:45,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472470285] [2024-10-31 22:03:45,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:45,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:45,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:45,919 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:03:45,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:45,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472470285] [2024-10-31 22:03:45,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472470285] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:45,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:45,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:03:45,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266064976] [2024-10-31 22:03:45,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:45,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:03:45,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:45,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:03:45,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:03:45,939 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-10-31 22:03:45,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 169 transitions, 509 flow. Second operand has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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 22:03:45,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:45,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-10-31 22:03:45,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:46,845 INFO L124 PetriNetUnfolderBase]: 4152/8072 cut-off events. [2024-10-31 22:03:46,846 INFO L125 PetriNetUnfolderBase]: For 83/83 co-relation queries the response was YES. [2024-10-31 22:03:46,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13843 conditions, 8072 events. 4152/8072 cut-off events. For 83/83 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66042 event pairs, 2736 based on Foata normal form. 0/6442 useless extension candidates. Maximal degree in co-relation 13829. Up to 5551 conditions per place. [2024-10-31 22:03:46,903 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 108 selfloop transitions, 3 changer transitions 0/168 dead transitions. [2024-10-31 22:03:46,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 168 transitions, 728 flow [2024-10-31 22:03:46,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:03:46,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:03:46,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-10-31 22:03:46,911 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-10-31 22:03:46,911 INFO L175 Difference]: Start difference. First operand has 133 places, 169 transitions, 509 flow. Second operand 4 states and 359 transitions. [2024-10-31 22:03:46,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 168 transitions, 728 flow [2024-10-31 22:03:46,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 168 transitions, 724 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:03:46,923 INFO L231 Difference]: Finished difference. Result has 134 places, 168 transitions, 508 flow [2024-10-31 22:03:46,924 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=508, PETRI_PLACES=134, PETRI_TRANSITIONS=168} [2024-10-31 22:03:46,931 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 4 predicate places. [2024-10-31 22:03:46,932 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 168 transitions, 508 flow [2024-10-31 22:03:46,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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 22:03:46,932 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:46,932 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:46,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 22:03:46,933 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-31 22:03:46,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:46,933 INFO L85 PathProgramCache]: Analyzing trace with hash -852712849, now seen corresponding path program 1 times [2024-10-31 22:03:46,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:46,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634657110] [2024-10-31 22:03:46,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:46,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:47,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:47,171 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:03:47,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:47,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634657110] [2024-10-31 22:03:47,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634657110] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:03:47,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597872433] [2024-10-31 22:03:47,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:47,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:03:47,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:47,175 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:03:47,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 22:03:47,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:47,351 INFO L255 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:03:47,353 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:47,410 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:03:47,410 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:03:47,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597872433] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:47,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:03:47,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-10-31 22:03:47,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715262800] [2024-10-31 22:03:47,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:47,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:03:47,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:47,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:03:47,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:03:47,447 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-10-31 22:03:47,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 168 transitions, 508 flow. Second operand has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 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 22:03:47,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:47,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-10-31 22:03:47,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:48,527 INFO L124 PetriNetUnfolderBase]: 4152/8069 cut-off events. [2024-10-31 22:03:48,527 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2024-10-31 22:03:48,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13841 conditions, 8069 events. 4152/8069 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 65975 event pairs, 2736 based on Foata normal form. 3/6439 useless extension candidates. Maximal degree in co-relation 13827. Up to 5539 conditions per place. [2024-10-31 22:03:48,579 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 93 selfloop transitions, 21 changer transitions 0/165 dead transitions. [2024-10-31 22:03:48,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 165 transitions, 724 flow [2024-10-31 22:03:48,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:03:48,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:03:48,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 507 transitions. [2024-10-31 22:03:48,582 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6035714285714285 [2024-10-31 22:03:48,582 INFO L175 Difference]: Start difference. First operand has 134 places, 168 transitions, 508 flow. Second operand 6 states and 507 transitions. [2024-10-31 22:03:48,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 165 transitions, 724 flow [2024-10-31 22:03:48,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 165 transitions, 720 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:03:48,587 INFO L231 Difference]: Finished difference. Result has 134 places, 165 transitions, 534 flow [2024-10-31 22:03:48,588 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=534, PETRI_PLACES=134, PETRI_TRANSITIONS=165} [2024-10-31 22:03:48,588 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 4 predicate places. [2024-10-31 22:03:48,588 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 165 transitions, 534 flow [2024-10-31 22:03:48,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 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 22:03:48,589 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:48,589 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:48,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-31 22:03:48,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:03:48,793 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-31 22:03:48,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:48,794 INFO L85 PathProgramCache]: Analyzing trace with hash -664292993, now seen corresponding path program 1 times [2024-10-31 22:03:48,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:48,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427027987] [2024-10-31 22:03:48,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:48,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:48,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:48,948 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:03:48,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:48,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427027987] [2024-10-31 22:03:48,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427027987] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:03:48,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780711112] [2024-10-31 22:03:48,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:48,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:03:48,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:48,951 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:03:48,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c51cb60-84a6-477a-93ad-740ece21e9b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 22:03:49,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:49,116 INFO L255 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:03:49,118 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:49,150 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:03:49,151 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:03:49,203 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:03:49,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780711112] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:03:49,203 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:03:49,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-10-31 22:03:49,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086411336] [2024-10-31 22:03:49,203 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:03:49,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-31 22:03:49,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:49,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-31 22:03:49,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:03:49,260 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-10-31 22:03:49,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 165 transitions, 534 flow. Second operand has 12 states, 12 states have (on average 74.16666666666667) internal successors, (890), 12 states have internal predecessors, (890), 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 22:03:49,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:49,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-10-31 22:03:49,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand