./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ebedbc62bd44b0c214a81c07c6f99e850a5d96675b77716f8547d1b39e8b2cf8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:07:46,810 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:07:46,910 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 19:07:46,916 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:07:46,919 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:07:46,957 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:07:46,958 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:07:46,959 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:07:46,960 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:07:46,961 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:07:46,962 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:07:46,962 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:07:46,963 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:07:46,963 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:07:46,964 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:07:46,964 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:07:46,965 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:07:46,965 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:07:46,965 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:07:46,966 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:07:46,966 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:07:46,967 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:07:46,967 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:07:46,968 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:07:46,968 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:07:46,969 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 19:07:46,969 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 19:07:46,969 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:07:46,970 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:07:46,970 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:07:46,970 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:07:46,971 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:07:46,971 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:07:46,971 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:07:46,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:07:46,972 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:07:46,973 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:07:46,973 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:07:46,973 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 19:07:46,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:07:46,974 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:07:46,975 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:07:46,975 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:07:46,976 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:07:46,976 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_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebedbc62bd44b0c214a81c07c6f99e850a5d96675b77716f8547d1b39e8b2cf8 [2024-11-08 19:07:47,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:07:47,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:07:47,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:07:47,307 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:07:47,307 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:07:47,309 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i Unable to find full path for "g++" [2024-11-08 19:07:49,397 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:07:49,669 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:07:49,669 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i [2024-11-08 19:07:49,699 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/data/4bf07aea7/beb26a1e143447e2acc566168214e771/FLAG2b4122852 [2024-11-08 19:07:49,975 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/data/4bf07aea7/beb26a1e143447e2acc566168214e771 [2024-11-08 19:07:49,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:07:49,980 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:07:49,982 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:07:49,982 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:07:49,990 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:07:49,991 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:07:49" (1/1) ... [2024-11-08 19:07:49,992 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64563794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:49, skipping insertion in model container [2024-11-08 19:07:49,993 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:07:49" (1/1) ... [2024-11-08 19:07:50,065 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:07:50,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:07:50,744 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:07:50,824 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:07:50,908 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:07:50,908 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:50 WrapperNode [2024-11-08 19:07:50,908 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:07:50,910 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:07:50,910 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:07:50,910 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:07:50,919 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:50" (1/1) ... [2024-11-08 19:07:50,944 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:50" (1/1) ... [2024-11-08 19:07:50,990 INFO L138 Inliner]: procedures = 263, calls = 70, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 139 [2024-11-08 19:07:50,991 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:07:50,992 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:07:50,995 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:07:50,995 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:07:51,009 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:50" (1/1) ... [2024-11-08 19:07:51,009 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:50" (1/1) ... [2024-11-08 19:07:51,012 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:50" (1/1) ... [2024-11-08 19:07:51,042 INFO L175 MemorySlicer]: Split 64 memory accesses to 1 slices as follows [64]. 100 percent of accesses are in the largest equivalence class. The 60 initializations are split as follows [60]. The 2 writes are split as follows [2]. [2024-11-08 19:07:51,043 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:50" (1/1) ... [2024-11-08 19:07:51,043 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:50" (1/1) ... [2024-11-08 19:07:51,055 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:50" (1/1) ... [2024-11-08 19:07:51,062 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:50" (1/1) ... [2024-11-08 19:07:51,067 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:50" (1/1) ... [2024-11-08 19:07:51,069 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:50" (1/1) ... [2024-11-08 19:07:51,075 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:07:51,076 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:07:51,080 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:07:51,080 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:07:51,081 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:50" (1/1) ... [2024-11-08 19:07:51,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:07:51,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:07:51,130 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:07:51,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:07:51,169 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 19:07:51,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 19:07:51,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 19:07:51,170 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 19:07:51,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:07:51,170 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 19:07:51,170 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 19:07:51,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 19:07:51,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:07:51,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:07:51,175 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 19:07:51,354 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:07:51,357 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:07:51,742 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 19:07:51,742 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:07:52,151 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:07:52,151 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 19:07:52,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:07:52 BoogieIcfgContainer [2024-11-08 19:07:52,152 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:07:52,155 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:07:52,157 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:07:52,161 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:07:52,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:07:49" (1/3) ... [2024-11-08 19:07:52,163 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2147a349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:07:52, skipping insertion in model container [2024-11-08 19:07:52,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:50" (2/3) ... [2024-11-08 19:07:52,164 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2147a349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:07:52, skipping insertion in model container [2024-11-08 19:07:52,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:07:52" (3/3) ... [2024-11-08 19:07:52,168 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_02-funloop_norace.i [2024-11-08 19:07:52,189 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:07:52,190 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-11-08 19:07:52,191 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 19:07:52,252 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-08 19:07:52,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 48 transitions, 100 flow [2024-11-08 19:07:52,374 INFO L124 PetriNetUnfolderBase]: 6/47 cut-off events. [2024-11-08 19:07:52,375 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 19:07:52,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 47 events. 6/47 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2024-11-08 19:07:52,380 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 48 transitions, 100 flow [2024-11-08 19:07:52,387 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 47 transitions, 97 flow [2024-11-08 19:07:52,401 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:07:52,411 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;@40605e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:07:52,412 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-08 19:07:52,420 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 19:07:52,420 INFO L124 PetriNetUnfolderBase]: 1/7 cut-off events. [2024-11-08 19:07:52,421 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 19:07:52,421 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:07:52,422 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-08 19:07:52,422 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:07:52,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:52,430 INFO L85 PathProgramCache]: Analyzing trace with hash 11579865, now seen corresponding path program 1 times [2024-11-08 19:07:52,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:07:52,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993968032] [2024-11-08 19:07:52,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:52,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:07:52,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:52,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:07:52,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:07:52,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993968032] [2024-11-08 19:07:52,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993968032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:07:52,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:07:52,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:07:52,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471517580] [2024-11-08 19:07:52,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:07:52,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:07:52,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:07:52,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:07:52,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:07:53,020 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-11-08 19:07:53,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 47 transitions, 97 flow. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:07:53,024 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:07:53,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-11-08 19:07:53,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:07:53,200 INFO L124 PetriNetUnfolderBase]: 89/279 cut-off events. [2024-11-08 19:07:53,201 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 19:07:53,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 457 conditions, 279 events. 89/279 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1255 event pairs, 64 based on Foata normal form. 2/241 useless extension candidates. Maximal degree in co-relation 426. Up to 172 conditions per place. [2024-11-08 19:07:53,205 INFO L140 encePairwiseOnDemand]: 41/48 looper letters, 26 selfloop transitions, 3 changer transitions 0/49 dead transitions. [2024-11-08 19:07:53,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 49 transitions, 159 flow [2024-11-08 19:07:53,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:07:53,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 19:07:53,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 117 transitions. [2024-11-08 19:07:53,220 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.609375 [2024-11-08 19:07:53,223 INFO L175 Difference]: Start difference. First operand has 45 places, 47 transitions, 97 flow. Second operand 4 states and 117 transitions. [2024-11-08 19:07:53,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 49 transitions, 159 flow [2024-11-08 19:07:53,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 49 transitions, 158 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 19:07:53,230 INFO L231 Difference]: Finished difference. Result has 49 places, 49 transitions, 122 flow [2024-11-08 19:07:53,232 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=122, PETRI_PLACES=49, PETRI_TRANSITIONS=49} [2024-11-08 19:07:53,236 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 4 predicate places. [2024-11-08 19:07:53,237 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 49 transitions, 122 flow [2024-11-08 19:07:53,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:07:53,237 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:07:53,238 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-08 19:07:53,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 19:07:53,238 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:07:53,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:53,239 INFO L85 PathProgramCache]: Analyzing trace with hash -209316658, now seen corresponding path program 1 times [2024-11-08 19:07:53,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:07:53,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541258397] [2024-11-08 19:07:53,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:53,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:07:53,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:53,442 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:07:53,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:07:53,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541258397] [2024-11-08 19:07:53,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541258397] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:07:53,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185421515] [2024-11-08 19:07:53,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:53,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:07:53,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:07:53,455 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:07:53,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 19:07:53,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:53,583 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 19:07:53,587 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:07:53,657 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:07:53,657 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:07:53,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185421515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:07:53,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:07:53,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-08 19:07:53,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494308212] [2024-11-08 19:07:53,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:07:53,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:07:53,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:07:53,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:07:53,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:07:53,690 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-11-08 19:07:53,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 49 transitions, 122 flow. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:07:53,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:07:53,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-11-08 19:07:53,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:07:53,957 INFO L124 PetriNetUnfolderBase]: 89/278 cut-off events. [2024-11-08 19:07:53,960 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 19:07:53,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 467 conditions, 278 events. 89/278 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1259 event pairs, 64 based on Foata normal form. 1/239 useless extension candidates. Maximal degree in co-relation 449. Up to 165 conditions per place. [2024-11-08 19:07:53,965 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 22 selfloop transitions, 6 changer transitions 0/48 dead transitions. [2024-11-08 19:07:53,965 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 48 transitions, 174 flow [2024-11-08 19:07:53,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:07:53,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 19:07:53,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 155 transitions. [2024-11-08 19:07:53,968 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5381944444444444 [2024-11-08 19:07:53,968 INFO L175 Difference]: Start difference. First operand has 49 places, 49 transitions, 122 flow. Second operand 6 states and 155 transitions. [2024-11-08 19:07:53,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 48 transitions, 174 flow [2024-11-08 19:07:53,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 48 transitions, 172 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 19:07:53,973 INFO L231 Difference]: Finished difference. Result has 52 places, 48 transitions, 128 flow [2024-11-08 19:07:53,975 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=128, PETRI_PLACES=52, PETRI_TRANSITIONS=48} [2024-11-08 19:07:53,976 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 7 predicate places. [2024-11-08 19:07:53,976 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 48 transitions, 128 flow [2024-11-08 19:07:53,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:07:53,976 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:07:53,977 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-08 19:07:54,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 19:07:54,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:07:54,178 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:07:54,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:54,178 INFO L85 PathProgramCache]: Analyzing trace with hash 2101118543, now seen corresponding path program 1 times [2024-11-08 19:07:54,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:07:54,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496691937] [2024-11-08 19:07:54,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:54,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:07:54,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:54,285 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 19:07:54,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:07:54,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496691937] [2024-11-08 19:07:54,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496691937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:07:54,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:07:54,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:07:54,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700371435] [2024-11-08 19:07:54,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:07:54,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:07:54,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:07:54,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:07:54,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:07:54,309 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 48 [2024-11-08 19:07:54,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 48 transitions, 128 flow. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:07:54,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:07:54,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 48 [2024-11-08 19:07:54,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:07:54,454 INFO L124 PetriNetUnfolderBase]: 88/276 cut-off events. [2024-11-08 19:07:54,455 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-08 19:07:54,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 468 conditions, 276 events. 88/276 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1255 event pairs, 64 based on Foata normal form. 2/240 useless extension candidates. Maximal degree in co-relation 443. Up to 168 conditions per place. [2024-11-08 19:07:54,461 INFO L140 encePairwiseOnDemand]: 42/48 looper letters, 22 selfloop transitions, 6 changer transitions 0/47 dead transitions. [2024-11-08 19:07:54,461 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 47 transitions, 178 flow [2024-11-08 19:07:54,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:07:54,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 19:07:54,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 108 transitions. [2024-11-08 19:07:54,466 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5625 [2024-11-08 19:07:54,466 INFO L175 Difference]: Start difference. First operand has 52 places, 48 transitions, 128 flow. Second operand 4 states and 108 transitions. [2024-11-08 19:07:54,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 47 transitions, 178 flow [2024-11-08 19:07:54,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 47 transitions, 168 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-08 19:07:54,469 INFO L231 Difference]: Finished difference. Result has 51 places, 47 transitions, 130 flow [2024-11-08 19:07:54,471 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=130, PETRI_PLACES=51, PETRI_TRANSITIONS=47} [2024-11-08 19:07:54,472 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 6 predicate places. [2024-11-08 19:07:54,472 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 47 transitions, 130 flow [2024-11-08 19:07:54,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:07:54,473 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:07:54,474 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:07:54,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 19:07:54,474 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:07:54,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:54,475 INFO L85 PathProgramCache]: Analyzing trace with hash 580053652, now seen corresponding path program 1 times [2024-11-08 19:07:54,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:07:54,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014121594] [2024-11-08 19:07:54,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:54,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:07:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:54,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:07:54,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:07:54,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014121594] [2024-11-08 19:07:54,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014121594] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:07:54,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242452404] [2024-11-08 19:07:54,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:54,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:07:54,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:07:54,615 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:07:54,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 19:07:54,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:54,734 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 19:07:54,735 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:07:54,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:07:54,768 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:07:54,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:07:54,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242452404] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:07:54,821 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:07:54,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-08 19:07:54,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100912494] [2024-11-08 19:07:54,823 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:07:54,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:07:54,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:07:54,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:07:54,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:07:54,854 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 48 [2024-11-08 19:07:54,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 47 transitions, 130 flow. Second operand has 10 states, 10 states have (on average 22.0) internal successors, (220), 10 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:07:54,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:07:54,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 48 [2024-11-08 19:07:54,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:07:55,078 INFO L124 PetriNetUnfolderBase]: 88/281 cut-off events. [2024-11-08 19:07:55,078 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-11-08 19:07:55,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 489 conditions, 281 events. 88/281 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1275 event pairs, 64 based on Foata normal form. 2/245 useless extension candidates. Maximal degree in co-relation 435. Up to 167 conditions per place. [2024-11-08 19:07:55,080 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 25 selfloop transitions, 7 changer transitions 0/51 dead transitions. [2024-11-08 19:07:55,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 51 transitions, 219 flow [2024-11-08 19:07:55,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:07:55,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 19:07:55,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 174 transitions. [2024-11-08 19:07:55,085 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5178571428571429 [2024-11-08 19:07:55,086 INFO L175 Difference]: Start difference. First operand has 51 places, 47 transitions, 130 flow. Second operand 7 states and 174 transitions. [2024-11-08 19:07:55,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 51 transitions, 219 flow [2024-11-08 19:07:55,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 51 transitions, 206 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 19:07:55,091 INFO L231 Difference]: Finished difference. Result has 58 places, 50 transitions, 168 flow [2024-11-08 19:07:55,092 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=168, PETRI_PLACES=58, PETRI_TRANSITIONS=50} [2024-11-08 19:07:55,093 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 13 predicate places. [2024-11-08 19:07:55,093 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 50 transitions, 168 flow [2024-11-08 19:07:55,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 22.0) internal successors, (220), 10 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:07:55,094 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:07:55,095 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:07:55,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 19:07:55,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:07:55,296 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:07:55,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:55,296 INFO L85 PathProgramCache]: Analyzing trace with hash 842232190, now seen corresponding path program 2 times [2024-11-08 19:07:55,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:07:55,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272086644] [2024-11-08 19:07:55,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:55,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:07:55,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:55,509 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:07:55,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:07:55,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272086644] [2024-11-08 19:07:55,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272086644] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:07:55,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572491782] [2024-11-08 19:07:55,511 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 19:07:55,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:07:55,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:07:55,514 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:07:55,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 19:07:55,623 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 19:07:55,623 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:07:55,625 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 19:07:55,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:07:55,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-08 19:07:56,005 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 19:07:56,005 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:07:56,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572491782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:07:56,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:07:56,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 12 [2024-11-08 19:07:56,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504347198] [2024-11-08 19:07:56,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:07:56,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:07:56,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:07:56,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:07:56,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:07:56,028 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-11-08 19:07:56,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 50 transitions, 168 flow. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:07:56,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:07:56,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-11-08 19:07:56,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:07:56,436 INFO L124 PetriNetUnfolderBase]: 252/628 cut-off events. [2024-11-08 19:07:56,437 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-11-08 19:07:56,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1138 conditions, 628 events. 252/628 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3213 event pairs, 51 based on Foata normal form. 20/559 useless extension candidates. Maximal degree in co-relation 1078. Up to 234 conditions per place. [2024-11-08 19:07:56,442 INFO L140 encePairwiseOnDemand]: 36/48 looper letters, 74 selfloop transitions, 16 changer transitions 0/109 dead transitions. [2024-11-08 19:07:56,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 109 transitions, 466 flow [2024-11-08 19:07:56,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:07:56,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-08 19:07:56,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 258 transitions. [2024-11-08 19:07:56,446 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.671875 [2024-11-08 19:07:56,447 INFO L175 Difference]: Start difference. First operand has 58 places, 50 transitions, 168 flow. Second operand 8 states and 258 transitions. [2024-11-08 19:07:56,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 109 transitions, 466 flow [2024-11-08 19:07:56,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 109 transitions, 460 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-08 19:07:56,452 INFO L231 Difference]: Finished difference. Result has 69 places, 66 transitions, 284 flow [2024-11-08 19:07:56,452 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=284, PETRI_PLACES=69, PETRI_TRANSITIONS=66} [2024-11-08 19:07:56,453 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 24 predicate places. [2024-11-08 19:07:56,453 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 66 transitions, 284 flow [2024-11-08 19:07:56,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:07:56,454 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:07:56,454 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:07:56,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 19:07:56,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:07:56,659 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:07:56,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:56,659 INFO L85 PathProgramCache]: Analyzing trace with hash 223925799, now seen corresponding path program 1 times [2024-11-08 19:07:56,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:07:56,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6433484] [2024-11-08 19:07:56,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:56,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:07:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:56,856 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:07:56,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:07:56,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6433484] [2024-11-08 19:07:56,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6433484] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:07:56,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539143903] [2024-11-08 19:07:56,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:56,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:07:56,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:07:56,859 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:07:56,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 19:07:56,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:56,954 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 19:07:56,956 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:07:56,997 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:07:56,997 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:07:57,100 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:07:57,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539143903] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:07:57,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:07:57,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-08 19:07:57,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43850457] [2024-11-08 19:07:57,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:07:57,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 19:07:57,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:07:57,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 19:07:57,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-08 19:07:57,148 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 48 [2024-11-08 19:07:57,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 66 transitions, 284 flow. Second operand has 18 states, 18 states have (on average 21.77777777777778) internal successors, (392), 18 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:07:57,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:07:57,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 48 [2024-11-08 19:07:57,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:07:57,446 INFO L124 PetriNetUnfolderBase]: 188/568 cut-off events. [2024-11-08 19:07:57,446 INFO L125 PetriNetUnfolderBase]: For 355/370 co-relation queries the response was YES. [2024-11-08 19:07:57,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1308 conditions, 568 events. 188/568 cut-off events. For 355/370 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2960 event pairs, 90 based on Foata normal form. 4/530 useless extension candidates. Maximal degree in co-relation 1171. Up to 339 conditions per place. [2024-11-08 19:07:57,452 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 43 selfloop transitions, 15 changer transitions 0/79 dead transitions. [2024-11-08 19:07:57,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 79 transitions, 510 flow [2024-11-08 19:07:57,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 19:07:57,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-08 19:07:57,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 348 transitions. [2024-11-08 19:07:57,470 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48333333333333334 [2024-11-08 19:07:57,470 INFO L175 Difference]: Start difference. First operand has 69 places, 66 transitions, 284 flow. Second operand 15 states and 348 transitions. [2024-11-08 19:07:57,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 79 transitions, 510 flow [2024-11-08 19:07:57,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 79 transitions, 510 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 19:07:57,476 INFO L231 Difference]: Finished difference. Result has 88 places, 75 transitions, 418 flow [2024-11-08 19:07:57,477 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=418, PETRI_PLACES=88, PETRI_TRANSITIONS=75} [2024-11-08 19:07:57,477 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 43 predicate places. [2024-11-08 19:07:57,477 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 75 transitions, 418 flow [2024-11-08 19:07:57,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 21.77777777777778) internal successors, (392), 18 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:07:57,478 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:07:57,478 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:07:57,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 19:07:57,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-08 19:07:57,683 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:07:57,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:57,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1253721595, now seen corresponding path program 2 times [2024-11-08 19:07:57,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:07:57,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139631049] [2024-11-08 19:07:57,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:57,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:07:57,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:58,081 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:07:58,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:07:58,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139631049] [2024-11-08 19:07:58,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139631049] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:07:58,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157623517] [2024-11-08 19:07:58,083 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 19:07:58,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:07:58,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:07:58,085 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:07:58,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 19:07:58,173 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 19:07:58,174 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:07:58,175 INFO L255 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 19:07:58,177 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:07:58,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-08 19:07:58,667 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-08 19:07:58,667 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:07:58,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157623517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:07:58,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:07:58,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 20 [2024-11-08 19:07:58,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087168655] [2024-11-08 19:07:58,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:07:58,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:07:58,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:07:58,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:07:58,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2024-11-08 19:07:58,690 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-11-08 19:07:58,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 75 transitions, 418 flow. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:07:58,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:07:58,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-11-08 19:07:58,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:07:59,147 INFO L124 PetriNetUnfolderBase]: 371/924 cut-off events. [2024-11-08 19:07:59,148 INFO L125 PetriNetUnfolderBase]: For 691/754 co-relation queries the response was YES. [2024-11-08 19:07:59,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2181 conditions, 924 events. 371/924 cut-off events. For 691/754 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 4936 event pairs, 49 based on Foata normal form. 43/907 useless extension candidates. Maximal degree in co-relation 2021. Up to 415 conditions per place. [2024-11-08 19:07:59,160 INFO L140 encePairwiseOnDemand]: 36/48 looper letters, 103 selfloop transitions, 32 changer transitions 0/157 dead transitions. [2024-11-08 19:07:59,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 157 transitions, 1011 flow [2024-11-08 19:07:59,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:07:59,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-08 19:07:59,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 257 transitions. [2024-11-08 19:07:59,162 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6692708333333334 [2024-11-08 19:07:59,162 INFO L175 Difference]: Start difference. First operand has 88 places, 75 transitions, 418 flow. Second operand 8 states and 257 transitions. [2024-11-08 19:07:59,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 157 transitions, 1011 flow [2024-11-08 19:07:59,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 157 transitions, 983 flow, removed 10 selfloop flow, removed 4 redundant places. [2024-11-08 19:07:59,170 INFO L231 Difference]: Finished difference. Result has 97 places, 106 transitions, 696 flow [2024-11-08 19:07:59,171 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=696, PETRI_PLACES=97, PETRI_TRANSITIONS=106} [2024-11-08 19:07:59,171 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 52 predicate places. [2024-11-08 19:07:59,172 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 106 transitions, 696 flow [2024-11-08 19:07:59,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:07:59,172 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:07:59,172 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:07:59,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 19:07:59,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:07:59,373 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:07:59,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:59,374 INFO L85 PathProgramCache]: Analyzing trace with hash 210664137, now seen corresponding path program 1 times [2024-11-08 19:07:59,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:07:59,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314829804] [2024-11-08 19:07:59,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:59,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:07:59,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:59,805 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:07:59,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:07:59,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314829804] [2024-11-08 19:07:59,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314829804] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:07:59,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758931330] [2024-11-08 19:07:59,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:59,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:07:59,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:07:59,808 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:07:59,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 19:07:59,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:59,918 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 19:07:59,919 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:07:59,996 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:07:59,996 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:08:00,258 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:08:00,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758931330] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:08:00,259 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:08:00,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-08 19:08:00,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518797255] [2024-11-08 19:08:00,259 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:08:00,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-08 19:08:00,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:00,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-08 19:08:00,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-08 19:08:00,302 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 48 [2024-11-08 19:08:00,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 106 transitions, 696 flow. Second operand has 23 states, 23 states have (on average 21.782608695652176) internal successors, (501), 23 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:00,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:08:00,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 48 [2024-11-08 19:08:00,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:08:00,727 INFO L124 PetriNetUnfolderBase]: 268/819 cut-off events. [2024-11-08 19:08:00,727 INFO L125 PetriNetUnfolderBase]: For 1300/1376 co-relation queries the response was YES. [2024-11-08 19:08:00,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2306 conditions, 819 events. 268/819 cut-off events. For 1300/1376 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4517 event pairs, 98 based on Foata normal form. 14/802 useless extension candidates. Maximal degree in co-relation 2084. Up to 488 conditions per place. [2024-11-08 19:08:00,735 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 75 selfloop transitions, 21 changer transitions 0/119 dead transitions. [2024-11-08 19:08:00,735 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 119 transitions, 1020 flow [2024-11-08 19:08:00,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-08 19:08:00,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-08 19:08:00,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 476 transitions. [2024-11-08 19:08:00,738 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4722222222222222 [2024-11-08 19:08:00,738 INFO L175 Difference]: Start difference. First operand has 97 places, 106 transitions, 696 flow. Second operand 21 states and 476 transitions. [2024-11-08 19:08:00,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 119 transitions, 1020 flow [2024-11-08 19:08:00,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 119 transitions, 1020 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 19:08:00,749 INFO L231 Difference]: Finished difference. Result has 121 places, 113 transitions, 830 flow [2024-11-08 19:08:00,752 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=696, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=830, PETRI_PLACES=121, PETRI_TRANSITIONS=113} [2024-11-08 19:08:00,752 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 76 predicate places. [2024-11-08 19:08:00,753 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 113 transitions, 830 flow [2024-11-08 19:08:00,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 21.782608695652176) internal successors, (501), 23 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:00,753 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:08:00,753 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:00,773 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 19:08:00,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a28c9f4-195b-4252-b78f-c6e546b21370/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:08:00,954 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:08:00,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:00,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1076999356, now seen corresponding path program 1 times [2024-11-08 19:08:00,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:00,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401973740] [2024-11-08 19:08:00,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:00,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:01,346 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:08:01,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:01,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401973740] [2024-11-08 19:08:01,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401973740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:01,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:01,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:08:01,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292264400] [2024-11-08 19:08:01,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:01,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:08:01,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:01,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:08:01,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:08:01,364 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-11-08 19:08:01,365 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 113 transitions, 830 flow. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:01,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:08:01,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-11-08 19:08:01,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:08:01,755 INFO L124 PetriNetUnfolderBase]: 349/927 cut-off events. [2024-11-08 19:08:01,755 INFO L125 PetriNetUnfolderBase]: For 1563/1624 co-relation queries the response was YES. [2024-11-08 19:08:01,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2711 conditions, 927 events. 349/927 cut-off events. For 1563/1624 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 5002 event pairs, 99 based on Foata normal form. 34/900 useless extension candidates. Maximal degree in co-relation 2466. Up to 601 conditions per place. [2024-11-08 19:08:01,764 INFO L140 encePairwiseOnDemand]: 41/48 looper letters, 96 selfloop transitions, 18 changer transitions 0/137 dead transitions. [2024-11-08 19:08:01,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 137 transitions, 1164 flow [2024-11-08 19:08:01,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:08:01,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 19:08:01,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 210 transitions. [2024-11-08 19:08:01,766 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-11-08 19:08:01,766 INFO L175 Difference]: Start difference. First operand has 121 places, 113 transitions, 830 flow. Second operand 7 states and 210 transitions. [2024-11-08 19:08:01,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 137 transitions, 1164 flow [2024-11-08 19:08:01,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 137 transitions, 1120 flow, removed 1 selfloop flow, removed 13 redundant places. [2024-11-08 19:08:01,778 INFO L231 Difference]: Finished difference. Result has 114 places, 112 transitions, 816 flow [2024-11-08 19:08:01,778 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=780, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=816, PETRI_PLACES=114, PETRI_TRANSITIONS=112} [2024-11-08 19:08:01,780 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 69 predicate places. [2024-11-08 19:08:01,780 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 112 transitions, 816 flow [2024-11-08 19:08:01,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:01,781 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:08:01,781 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:01,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 19:08:01,781 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:08:01,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:01,782 INFO L85 PathProgramCache]: Analyzing trace with hash -910629622, now seen corresponding path program 2 times [2024-11-08 19:08:01,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:01,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065403236] [2024-11-08 19:08:01,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:01,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:01,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:02,162 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:08:02,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:02,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065403236] [2024-11-08 19:08:02,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065403236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:02,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:02,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:08:02,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864617421] [2024-11-08 19:08:02,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:02,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:08:02,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:02,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:08:02,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:08:02,203 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-11-08 19:08:02,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 112 transitions, 816 flow. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:02,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:08:02,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-11-08 19:08:02,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:08:02,602 INFO L124 PetriNetUnfolderBase]: 360/952 cut-off events. [2024-11-08 19:08:02,603 INFO L125 PetriNetUnfolderBase]: For 1457/1471 co-relation queries the response was YES. [2024-11-08 19:08:02,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2789 conditions, 952 events. 360/952 cut-off events. For 1457/1471 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 5139 event pairs, 102 based on Foata normal form. 21/919 useless extension candidates. Maximal degree in co-relation 2556. Up to 590 conditions per place. [2024-11-08 19:08:02,613 INFO L140 encePairwiseOnDemand]: 41/48 looper letters, 96 selfloop transitions, 18 changer transitions 0/136 dead transitions. [2024-11-08 19:08:02,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 136 transitions, 1165 flow [2024-11-08 19:08:02,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:08:02,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 19:08:02,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 210 transitions. [2024-11-08 19:08:02,615 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-11-08 19:08:02,615 INFO L175 Difference]: Start difference. First operand has 114 places, 112 transitions, 816 flow. Second operand 7 states and 210 transitions. [2024-11-08 19:08:02,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 136 transitions, 1165 flow [2024-11-08 19:08:02,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 136 transitions, 1123 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-08 19:08:02,629 INFO L231 Difference]: Finished difference. Result has 117 places, 111 transitions, 807 flow [2024-11-08 19:08:02,630 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=771, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=807, PETRI_PLACES=117, PETRI_TRANSITIONS=111} [2024-11-08 19:08:02,631 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 72 predicate places. [2024-11-08 19:08:02,632 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 111 transitions, 807 flow [2024-11-08 19:08:02,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:02,632 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:08:02,633 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:02,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 19:08:02,633 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:08:02,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:02,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1482508724, now seen corresponding path program 1 times [2024-11-08 19:08:02,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:02,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451496142] [2024-11-08 19:08:02,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:02,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:02,742 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:08:02,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:02,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451496142] [2024-11-08 19:08:02,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451496142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:02,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:02,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:08:02,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493073766] [2024-11-08 19:08:02,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:02,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:08:02,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:02,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:08:02,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:08:02,761 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-11-08 19:08:02,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 111 transitions, 807 flow. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:02,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:08:02,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-11-08 19:08:02,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:08:03,060 INFO L124 PetriNetUnfolderBase]: 361/974 cut-off events. [2024-11-08 19:08:03,061 INFO L125 PetriNetUnfolderBase]: For 1324/1352 co-relation queries the response was YES. [2024-11-08 19:08:03,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2818 conditions, 974 events. 361/974 cut-off events. For 1324/1352 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 5262 event pairs, 85 based on Foata normal form. 48/986 useless extension candidates. Maximal degree in co-relation 2585. Up to 398 conditions per place. [2024-11-08 19:08:03,072 INFO L140 encePairwiseOnDemand]: 41/48 looper letters, 115 selfloop transitions, 6 changer transitions 0/144 dead transitions. [2024-11-08 19:08:03,072 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 144 transitions, 1194 flow [2024-11-08 19:08:03,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:08:03,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 19:08:03,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 140 transitions. [2024-11-08 19:08:03,073 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2024-11-08 19:08:03,074 INFO L175 Difference]: Start difference. First operand has 117 places, 111 transitions, 807 flow. Second operand 4 states and 140 transitions. [2024-11-08 19:08:03,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 144 transitions, 1194 flow [2024-11-08 19:08:03,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 144 transitions, 1173 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 19:08:03,085 INFO L231 Difference]: Finished difference. Result has 120 places, 113 transitions, 827 flow [2024-11-08 19:08:03,086 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=787, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=827, PETRI_PLACES=120, PETRI_TRANSITIONS=113} [2024-11-08 19:08:03,086 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 75 predicate places. [2024-11-08 19:08:03,087 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 113 transitions, 827 flow [2024-11-08 19:08:03,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:03,087 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:08:03,087 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:03,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 19:08:03,088 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:08:03,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:03,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1553264290, now seen corresponding path program 1 times [2024-11-08 19:08:03,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:03,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099646079] [2024-11-08 19:08:03,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:03,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:03,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:03,194 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:08:03,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:03,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099646079] [2024-11-08 19:08:03,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099646079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:03,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:03,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:08:03,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107273262] [2024-11-08 19:08:03,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:03,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:08:03,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:03,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:08:03,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:08:03,208 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-11-08 19:08:03,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 113 transitions, 827 flow. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:03,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:08:03,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-11-08 19:08:03,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:08:03,546 INFO L124 PetriNetUnfolderBase]: 455/1216 cut-off events. [2024-11-08 19:08:03,546 INFO L125 PetriNetUnfolderBase]: For 1806/1815 co-relation queries the response was YES. [2024-11-08 19:08:03,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3588 conditions, 1216 events. 455/1216 cut-off events. For 1806/1815 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 6952 event pairs, 187 based on Foata normal form. 50/1242 useless extension candidates. Maximal degree in co-relation 3353. Up to 539 conditions per place. [2024-11-08 19:08:03,560 INFO L140 encePairwiseOnDemand]: 41/48 looper letters, 121 selfloop transitions, 6 changer transitions 0/150 dead transitions. [2024-11-08 19:08:03,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 150 transitions, 1277 flow [2024-11-08 19:08:03,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:08:03,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 19:08:03,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 140 transitions. [2024-11-08 19:08:03,561 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2024-11-08 19:08:03,561 INFO L175 Difference]: Start difference. First operand has 120 places, 113 transitions, 827 flow. Second operand 4 states and 140 transitions. [2024-11-08 19:08:03,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 150 transitions, 1277 flow [2024-11-08 19:08:03,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 150 transitions, 1267 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 19:08:03,574 INFO L231 Difference]: Finished difference. Result has 124 places, 115 transitions, 863 flow [2024-11-08 19:08:03,575 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=823, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=863, PETRI_PLACES=124, PETRI_TRANSITIONS=115} [2024-11-08 19:08:03,575 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 79 predicate places. [2024-11-08 19:08:03,575 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 115 transitions, 863 flow [2024-11-08 19:08:03,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:03,576 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:08:03,576 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:03,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 19:08:03,576 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:08:03,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:03,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1881622619, now seen corresponding path program 1 times [2024-11-08 19:08:03,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:03,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373151655] [2024-11-08 19:08:03,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:03,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:03,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:04,380 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:08:04,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:04,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373151655] [2024-11-08 19:08:04,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373151655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:04,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:04,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:08:04,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111332798] [2024-11-08 19:08:04,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:04,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:08:04,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:04,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:08:04,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:08:04,423 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-11-08 19:08:04,423 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 115 transitions, 863 flow. Second operand has 10 states, 10 states have (on average 22.5) internal successors, (225), 10 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:04,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:08:04,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-11-08 19:08:04,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:08:05,791 INFO L124 PetriNetUnfolderBase]: 623/1612 cut-off events. [2024-11-08 19:08:05,792 INFO L125 PetriNetUnfolderBase]: For 3178/3194 co-relation queries the response was YES. [2024-11-08 19:08:05,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5138 conditions, 1612 events. 623/1612 cut-off events. For 3178/3194 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 9750 event pairs, 186 based on Foata normal form. 55/1660 useless extension candidates. Maximal degree in co-relation 4901. Up to 942 conditions per place. [2024-11-08 19:08:05,811 INFO L140 encePairwiseOnDemand]: 35/48 looper letters, 145 selfloop transitions, 95 changer transitions 0/262 dead transitions. [2024-11-08 19:08:05,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 262 transitions, 2242 flow [2024-11-08 19:08:05,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-08 19:08:05,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-08 19:08:05,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 689 transitions. [2024-11-08 19:08:05,815 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5741666666666667 [2024-11-08 19:08:05,815 INFO L175 Difference]: Start difference. First operand has 124 places, 115 transitions, 863 flow. Second operand 25 states and 689 transitions. [2024-11-08 19:08:05,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 262 transitions, 2242 flow [2024-11-08 19:08:05,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 262 transitions, 2230 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 19:08:05,833 INFO L231 Difference]: Finished difference. Result has 162 places, 198 transitions, 1845 flow [2024-11-08 19:08:05,834 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=859, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=1845, PETRI_PLACES=162, PETRI_TRANSITIONS=198} [2024-11-08 19:08:05,835 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 117 predicate places. [2024-11-08 19:08:05,835 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 198 transitions, 1845 flow [2024-11-08 19:08:05,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 22.5) internal successors, (225), 10 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:05,835 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:08:05,836 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:05,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 19:08:05,836 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:08:05,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:05,836 INFO L85 PathProgramCache]: Analyzing trace with hash 662874768, now seen corresponding path program 1 times [2024-11-08 19:08:05,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:05,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431801079] [2024-11-08 19:08:05,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:05,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:05,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:06,322 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:08:06,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:06,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431801079] [2024-11-08 19:08:06,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431801079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:06,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:06,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 19:08:06,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239384267] [2024-11-08 19:08:06,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:06,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:08:06,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:06,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:08:06,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:08:06,349 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-11-08 19:08:06,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 198 transitions, 1845 flow. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:06,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:08:06,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-11-08 19:08:06,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:08:07,061 INFO L124 PetriNetUnfolderBase]: 638/1633 cut-off events. [2024-11-08 19:08:07,061 INFO L125 PetriNetUnfolderBase]: For 8023/8094 co-relation queries the response was YES. [2024-11-08 19:08:07,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6982 conditions, 1633 events. 638/1633 cut-off events. For 8023/8094 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 9959 event pairs, 142 based on Foata normal form. 5/1634 useless extension candidates. Maximal degree in co-relation 6729. Up to 623 conditions per place. [2024-11-08 19:08:07,090 INFO L140 encePairwiseOnDemand]: 38/48 looper letters, 246 selfloop transitions, 35 changer transitions 0/304 dead transitions. [2024-11-08 19:08:07,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 304 transitions, 3216 flow [2024-11-08 19:08:07,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:08:07,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 19:08:07,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 225 transitions. [2024-11-08 19:08:07,092 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6696428571428571 [2024-11-08 19:08:07,092 INFO L175 Difference]: Start difference. First operand has 162 places, 198 transitions, 1845 flow. Second operand 7 states and 225 transitions. [2024-11-08 19:08:07,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 304 transitions, 3216 flow [2024-11-08 19:08:07,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 304 transitions, 3158 flow, removed 19 selfloop flow, removed 2 redundant places. [2024-11-08 19:08:07,146 INFO L231 Difference]: Finished difference. Result has 171 places, 209 transitions, 2043 flow [2024-11-08 19:08:07,147 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=1813, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2043, PETRI_PLACES=171, PETRI_TRANSITIONS=209} [2024-11-08 19:08:07,148 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 126 predicate places. [2024-11-08 19:08:07,149 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 209 transitions, 2043 flow [2024-11-08 19:08:07,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:07,149 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:08:07,149 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:07,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 19:08:07,150 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:08:07,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:07,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1724879001, now seen corresponding path program 2 times [2024-11-08 19:08:07,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:07,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161076357] [2024-11-08 19:08:07,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:07,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:07,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:07,608 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:08:07,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:07,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161076357] [2024-11-08 19:08:07,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161076357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:07,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:07,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 19:08:07,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880512594] [2024-11-08 19:08:07,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:07,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:08:07,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:07,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:08:07,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:08:07,641 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-11-08 19:08:07,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 209 transitions, 2043 flow. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:07,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:08:07,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-11-08 19:08:07,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:08:08,461 INFO L124 PetriNetUnfolderBase]: 789/2046 cut-off events. [2024-11-08 19:08:08,462 INFO L125 PetriNetUnfolderBase]: For 11987/12075 co-relation queries the response was YES. [2024-11-08 19:08:08,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9520 conditions, 2046 events. 789/2046 cut-off events. For 11987/12075 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 13289 event pairs, 234 based on Foata normal form. 12/2052 useless extension candidates. Maximal degree in co-relation 9262. Up to 621 conditions per place. [2024-11-08 19:08:08,505 INFO L140 encePairwiseOnDemand]: 37/48 looper letters, 328 selfloop transitions, 36 changer transitions 0/387 dead transitions. [2024-11-08 19:08:08,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 387 transitions, 4560 flow [2024-11-08 19:08:08,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:08:08,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 19:08:08,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 232 transitions. [2024-11-08 19:08:08,507 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6904761904761905 [2024-11-08 19:08:08,507 INFO L175 Difference]: Start difference. First operand has 171 places, 209 transitions, 2043 flow. Second operand 7 states and 232 transitions. [2024-11-08 19:08:08,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 387 transitions, 4560 flow [2024-11-08 19:08:08,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 387 transitions, 4505 flow, removed 11 selfloop flow, removed 1 redundant places. [2024-11-08 19:08:08,577 INFO L231 Difference]: Finished difference. Result has 181 places, 241 transitions, 2493 flow [2024-11-08 19:08:08,577 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=2015, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2493, PETRI_PLACES=181, PETRI_TRANSITIONS=241} [2024-11-08 19:08:08,578 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 136 predicate places. [2024-11-08 19:08:08,579 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 241 transitions, 2493 flow [2024-11-08 19:08:08,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:08,579 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:08:08,579 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:08,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 19:08:08,580 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:08:08,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:08,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1060442186, now seen corresponding path program 2 times [2024-11-08 19:08:08,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:08,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677369146] [2024-11-08 19:08:08,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:08,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:08,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:09,386 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:08:09,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:09,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677369146] [2024-11-08 19:08:09,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677369146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:09,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:09,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:08:09,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283851118] [2024-11-08 19:08:09,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:09,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:08:09,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:09,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:08:09,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:08:09,416 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-11-08 19:08:09,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 241 transitions, 2493 flow. Second operand has 10 states, 10 states have (on average 22.5) internal successors, (225), 10 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:09,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:08:09,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-11-08 19:08:09,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:08:10,689 INFO L124 PetriNetUnfolderBase]: 1010/2557 cut-off events. [2024-11-08 19:08:10,689 INFO L125 PetriNetUnfolderBase]: For 17634/17678 co-relation queries the response was YES. [2024-11-08 19:08:10,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12512 conditions, 2557 events. 1010/2557 cut-off events. For 17634/17678 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 17640 event pairs, 197 based on Foata normal form. 76/2626 useless extension candidates. Maximal degree in co-relation 12248. Up to 1570 conditions per place. [2024-11-08 19:08:10,737 INFO L140 encePairwiseOnDemand]: 35/48 looper letters, 245 selfloop transitions, 132 changer transitions 0/399 dead transitions. [2024-11-08 19:08:10,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 399 transitions, 4750 flow [2024-11-08 19:08:10,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-08 19:08:10,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-08 19:08:10,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 585 transitions. [2024-11-08 19:08:10,740 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5803571428571429 [2024-11-08 19:08:10,740 INFO L175 Difference]: Start difference. First operand has 181 places, 241 transitions, 2493 flow. Second operand 21 states and 585 transitions. [2024-11-08 19:08:10,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 399 transitions, 4750 flow [2024-11-08 19:08:10,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 399 transitions, 4736 flow, removed 7 selfloop flow, removed 0 redundant places. [2024-11-08 19:08:10,828 INFO L231 Difference]: Finished difference. Result has 215 places, 335 transitions, 3913 flow [2024-11-08 19:08:10,829 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=2485, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=3913, PETRI_PLACES=215, PETRI_TRANSITIONS=335} [2024-11-08 19:08:10,830 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 170 predicate places. [2024-11-08 19:08:10,830 INFO L471 AbstractCegarLoop]: Abstraction has has 215 places, 335 transitions, 3913 flow [2024-11-08 19:08:10,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 22.5) internal successors, (225), 10 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:10,831 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:08:10,831 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:10,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 19:08:10,831 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:08:10,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:10,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1677406419, now seen corresponding path program 3 times [2024-11-08 19:08:10,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:10,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529612486] [2024-11-08 19:08:10,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:10,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:10,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:11,505 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:08:11,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:11,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529612486] [2024-11-08 19:08:11,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529612486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:11,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:11,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:08:11,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430242630] [2024-11-08 19:08:11,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:11,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:08:11,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:11,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:08:11,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:08:11,552 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-11-08 19:08:11,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 335 transitions, 3913 flow. Second operand has 10 states, 10 states have (on average 22.5) internal successors, (225), 10 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:11,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:08:11,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-11-08 19:08:11,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:08:13,628 INFO L124 PetriNetUnfolderBase]: 1094/2762 cut-off events. [2024-11-08 19:08:13,628 INFO L125 PetriNetUnfolderBase]: For 34376/34477 co-relation queries the response was YES. [2024-11-08 19:08:13,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16150 conditions, 2762 events. 1094/2762 cut-off events. For 34376/34477 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 19407 event pairs, 228 based on Foata normal form. 87/2842 useless extension candidates. Maximal degree in co-relation 15870. Up to 1676 conditions per place. [2024-11-08 19:08:13,739 INFO L140 encePairwiseOnDemand]: 35/48 looper letters, 307 selfloop transitions, 162 changer transitions 0/491 dead transitions. [2024-11-08 19:08:13,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 491 transitions, 6594 flow [2024-11-08 19:08:13,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-08 19:08:13,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2024-11-08 19:08:13,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 724 transitions. [2024-11-08 19:08:13,741 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.558641975308642 [2024-11-08 19:08:13,742 INFO L175 Difference]: Start difference. First operand has 215 places, 335 transitions, 3913 flow. Second operand 27 states and 724 transitions. [2024-11-08 19:08:13,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 491 transitions, 6594 flow [2024-11-08 19:08:13,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 491 transitions, 6469 flow, removed 54 selfloop flow, removed 2 redundant places. [2024-11-08 19:08:13,957 INFO L231 Difference]: Finished difference. Result has 257 places, 420 transitions, 5362 flow [2024-11-08 19:08:13,958 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=3818, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=5362, PETRI_PLACES=257, PETRI_TRANSITIONS=420} [2024-11-08 19:08:13,958 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 212 predicate places. [2024-11-08 19:08:13,959 INFO L471 AbstractCegarLoop]: Abstraction has has 257 places, 420 transitions, 5362 flow [2024-11-08 19:08:13,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 22.5) internal successors, (225), 10 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:13,959 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:08:13,959 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:13,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 19:08:13,960 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:08:13,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:13,960 INFO L85 PathProgramCache]: Analyzing trace with hash 2034382326, now seen corresponding path program 3 times [2024-11-08 19:08:13,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:13,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681032300] [2024-11-08 19:08:13,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:13,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:14,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:14,683 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:08:14,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:14,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681032300] [2024-11-08 19:08:14,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681032300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:14,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:14,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:08:14,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861564267] [2024-11-08 19:08:14,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:14,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:08:14,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:14,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:08:14,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:08:14,730 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-11-08 19:08:14,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 420 transitions, 5362 flow. Second operand has 10 states, 10 states have (on average 22.5) internal successors, (225), 10 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:14,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:08:14,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-11-08 19:08:14,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:08:16,994 INFO L124 PetriNetUnfolderBase]: 1179/2935 cut-off events. [2024-11-08 19:08:16,994 INFO L125 PetriNetUnfolderBase]: For 55179/55266 co-relation queries the response was YES. [2024-11-08 19:08:17,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19510 conditions, 2935 events. 1179/2935 cut-off events. For 55179/55266 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 20805 event pairs, 269 based on Foata normal form. 64/2992 useless extension candidates. Maximal degree in co-relation 19211. Up to 1856 conditions per place. [2024-11-08 19:08:17,066 INFO L140 encePairwiseOnDemand]: 35/48 looper letters, 363 selfloop transitions, 209 changer transitions 0/594 dead transitions. [2024-11-08 19:08:17,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 594 transitions, 8727 flow [2024-11-08 19:08:17,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-08 19:08:17,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2024-11-08 19:08:17,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 724 transitions. [2024-11-08 19:08:17,070 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.558641975308642 [2024-11-08 19:08:17,070 INFO L175 Difference]: Start difference. First operand has 257 places, 420 transitions, 5362 flow. Second operand 27 states and 724 transitions. [2024-11-08 19:08:17,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 594 transitions, 8727 flow [2024-11-08 19:08:17,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 594 transitions, 8599 flow, removed 51 selfloop flow, removed 3 redundant places. [2024-11-08 19:08:17,371 INFO L231 Difference]: Finished difference. Result has 299 places, 525 transitions, 7382 flow [2024-11-08 19:08:17,371 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=5246, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=121, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=7382, PETRI_PLACES=299, PETRI_TRANSITIONS=525} [2024-11-08 19:08:17,372 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 254 predicate places. [2024-11-08 19:08:17,372 INFO L471 AbstractCegarLoop]: Abstraction has has 299 places, 525 transitions, 7382 flow [2024-11-08 19:08:17,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 22.5) internal successors, (225), 10 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:17,373 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:08:17,373 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:17,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 19:08:17,373 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:08:17,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:17,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1988158630, now seen corresponding path program 4 times [2024-11-08 19:08:17,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:17,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144276686] [2024-11-08 19:08:17,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:17,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:17,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:18,043 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:08:18,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:18,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144276686] [2024-11-08 19:08:18,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144276686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:18,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:18,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:08:18,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653019347] [2024-11-08 19:08:18,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:18,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:08:18,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:18,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:08:18,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:08:18,085 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-11-08 19:08:18,086 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 525 transitions, 7382 flow. Second operand has 10 states, 10 states have (on average 22.5) internal successors, (225), 10 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:18,086 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:08:18,086 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-11-08 19:08:18,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:08:20,209 INFO L124 PetriNetUnfolderBase]: 1303/3225 cut-off events. [2024-11-08 19:08:20,209 INFO L125 PetriNetUnfolderBase]: For 101701/101841 co-relation queries the response was YES. [2024-11-08 19:08:20,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24796 conditions, 3225 events. 1303/3225 cut-off events. For 101701/101841 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 23291 event pairs, 129 based on Foata normal form. 48/3268 useless extension candidates. Maximal degree in co-relation 24477. Up to 1655 conditions per place. [2024-11-08 19:08:20,313 INFO L140 encePairwiseOnDemand]: 35/48 looper letters, 377 selfloop transitions, 301 changer transitions 0/700 dead transitions. [2024-11-08 19:08:20,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 700 transitions, 11352 flow [2024-11-08 19:08:20,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-08 19:08:20,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2024-11-08 19:08:20,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 755 transitions. [2024-11-08 19:08:20,318 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5423850574712644 [2024-11-08 19:08:20,318 INFO L175 Difference]: Start difference. First operand has 299 places, 525 transitions, 7382 flow. Second operand 29 states and 755 transitions. [2024-11-08 19:08:20,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 700 transitions, 11352 flow [2024-11-08 19:08:20,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 700 transitions, 11040 flow, removed 145 selfloop flow, removed 2 redundant places. [2024-11-08 19:08:20,825 INFO L231 Difference]: Finished difference. Result has 339 places, 617 transitions, 9346 flow [2024-11-08 19:08:20,825 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=7185, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=525, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=218, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=9346, PETRI_PLACES=339, PETRI_TRANSITIONS=617} [2024-11-08 19:08:20,826 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 294 predicate places. [2024-11-08 19:08:20,826 INFO L471 AbstractCegarLoop]: Abstraction has has 339 places, 617 transitions, 9346 flow [2024-11-08 19:08:20,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 22.5) internal successors, (225), 10 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:20,827 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:08:20,827 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:20,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 19:08:20,827 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:08:20,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:20,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1684593212, now seen corresponding path program 5 times [2024-11-08 19:08:20,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:20,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170639568] [2024-11-08 19:08:20,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:20,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:20,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:21,309 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:08:21,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:21,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170639568] [2024-11-08 19:08:21,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170639568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:21,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:21,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 19:08:21,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760595659] [2024-11-08 19:08:21,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:21,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:08:21,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:21,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:08:21,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:08:21,342 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-11-08 19:08:21,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 617 transitions, 9346 flow. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:21,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:08:21,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-11-08 19:08:21,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:08:23,210 INFO L124 PetriNetUnfolderBase]: 1232/3146 cut-off events. [2024-11-08 19:08:23,210 INFO L125 PetriNetUnfolderBase]: For 107075/107289 co-relation queries the response was YES. [2024-11-08 19:08:23,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25457 conditions, 3146 events. 1232/3146 cut-off events. For 107075/107289 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 22886 event pairs, 211 based on Foata normal form. 45/3184 useless extension candidates. Maximal degree in co-relation 25123. Up to 1069 conditions per place. [2024-11-08 19:08:23,397 INFO L140 encePairwiseOnDemand]: 36/48 looper letters, 734 selfloop transitions, 57 changer transitions 0/814 dead transitions. [2024-11-08 19:08:23,397 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 814 transitions, 13770 flow [2024-11-08 19:08:23,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:08:23,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 19:08:23,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 235 transitions. [2024-11-08 19:08:23,399 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6994047619047619 [2024-11-08 19:08:23,399 INFO L175 Difference]: Start difference. First operand has 339 places, 617 transitions, 9346 flow. Second operand 7 states and 235 transitions. [2024-11-08 19:08:23,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 814 transitions, 13770 flow [2024-11-08 19:08:24,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 814 transitions, 13198 flow, removed 148 selfloop flow, removed 5 redundant places. [2024-11-08 19:08:24,086 INFO L231 Difference]: Finished difference. Result has 343 places, 631 transitions, 9319 flow [2024-11-08 19:08:24,087 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=8862, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=615, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=563, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=9319, PETRI_PLACES=343, PETRI_TRANSITIONS=631} [2024-11-08 19:08:24,087 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 298 predicate places. [2024-11-08 19:08:24,088 INFO L471 AbstractCegarLoop]: Abstraction has has 343 places, 631 transitions, 9319 flow [2024-11-08 19:08:24,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:24,088 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:08:24,088 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:24,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 19:08:24,089 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:08:24,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:24,089 INFO L85 PathProgramCache]: Analyzing trace with hash -763513464, now seen corresponding path program 6 times [2024-11-08 19:08:24,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:24,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743750055] [2024-11-08 19:08:24,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:24,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:24,534 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:08:24,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:24,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743750055] [2024-11-08 19:08:24,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743750055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:24,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:24,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 19:08:24,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959148897] [2024-11-08 19:08:24,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:24,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:08:24,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:24,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:08:24,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:08:24,617 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-11-08 19:08:24,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 631 transitions, 9319 flow. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:24,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:08:24,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-11-08 19:08:24,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:08:26,160 INFO L124 PetriNetUnfolderBase]: 1244/3199 cut-off events. [2024-11-08 19:08:26,160 INFO L125 PetriNetUnfolderBase]: For 104155/104339 co-relation queries the response was YES. [2024-11-08 19:08:26,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25553 conditions, 3199 events. 1244/3199 cut-off events. For 104155/104339 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 23317 event pairs, 180 based on Foata normal form. 44/3232 useless extension candidates. Maximal degree in co-relation 25217. Up to 1067 conditions per place. [2024-11-08 19:08:26,226 INFO L140 encePairwiseOnDemand]: 37/48 looper letters, 729 selfloop transitions, 76 changer transitions 0/828 dead transitions. [2024-11-08 19:08:26,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 828 transitions, 13684 flow [2024-11-08 19:08:26,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:08:26,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 19:08:26,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 232 transitions. [2024-11-08 19:08:26,229 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6904761904761905 [2024-11-08 19:08:26,229 INFO L175 Difference]: Start difference. First operand has 343 places, 631 transitions, 9319 flow. Second operand 7 states and 232 transitions. [2024-11-08 19:08:26,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 828 transitions, 13684 flow [2024-11-08 19:08:26,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 828 transitions, 13607 flow, removed 18 selfloop flow, removed 2 redundant places. [2024-11-08 19:08:26,884 INFO L231 Difference]: Finished difference. Result has 352 places, 665 transitions, 10171 flow [2024-11-08 19:08:26,885 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=9142, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=623, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=551, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=10171, PETRI_PLACES=352, PETRI_TRANSITIONS=665} [2024-11-08 19:08:26,885 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 307 predicate places. [2024-11-08 19:08:26,886 INFO L471 AbstractCegarLoop]: Abstraction has has 352 places, 665 transitions, 10171 flow [2024-11-08 19:08:26,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:26,886 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:08:26,886 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:26,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 19:08:26,886 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:08:26,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:26,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1240040106, now seen corresponding path program 7 times [2024-11-08 19:08:26,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:26,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411560149] [2024-11-08 19:08:26,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:26,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:26,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:27,401 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:08:27,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:27,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411560149] [2024-11-08 19:08:27,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411560149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:27,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:27,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 19:08:27,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851381513] [2024-11-08 19:08:27,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:27,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:08:27,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:27,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:08:27,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:08:27,433 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-11-08 19:08:27,434 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 665 transitions, 10171 flow. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:27,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:08:27,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-11-08 19:08:27,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:08:28,781 INFO L124 PetriNetUnfolderBase]: 1158/2975 cut-off events. [2024-11-08 19:08:28,782 INFO L125 PetriNetUnfolderBase]: For 98656/98878 co-relation queries the response was YES. [2024-11-08 19:08:28,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24191 conditions, 2975 events. 1158/2975 cut-off events. For 98656/98878 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 21391 event pairs, 215 based on Foata normal form. 29/2996 useless extension candidates. Maximal degree in co-relation 24055. Up to 1103 conditions per place. [2024-11-08 19:08:28,958 INFO L140 encePairwiseOnDemand]: 37/48 looper letters, 614 selfloop transitions, 93 changer transitions 0/730 dead transitions. [2024-11-08 19:08:28,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 730 transitions, 12428 flow [2024-11-08 19:08:28,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:08:28,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 19:08:28,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 227 transitions. [2024-11-08 19:08:28,965 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6755952380952381 [2024-11-08 19:08:28,966 INFO L175 Difference]: Start difference. First operand has 352 places, 665 transitions, 10171 flow. Second operand 7 states and 227 transitions. [2024-11-08 19:08:28,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 730 transitions, 12428 flow [2024-11-08 19:08:29,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 730 transitions, 12094 flow, removed 57 selfloop flow, removed 12 redundant places. [2024-11-08 19:08:29,543 INFO L231 Difference]: Finished difference. Result has 339 places, 604 transitions, 9385 flow [2024-11-08 19:08:29,544 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=8880, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=593, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=504, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=9385, PETRI_PLACES=339, PETRI_TRANSITIONS=604} [2024-11-08 19:08:29,544 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 294 predicate places. [2024-11-08 19:08:29,544 INFO L471 AbstractCegarLoop]: Abstraction has has 339 places, 604 transitions, 9385 flow [2024-11-08 19:08:29,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:29,545 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:08:29,545 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:29,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 19:08:29,545 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:08:29,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:29,545 INFO L85 PathProgramCache]: Analyzing trace with hash -404959060, now seen corresponding path program 8 times [2024-11-08 19:08:29,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:29,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726227534] [2024-11-08 19:08:29,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:29,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:29,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:29,888 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:08:29,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:29,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726227534] [2024-11-08 19:08:29,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726227534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:29,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:29,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 19:08:29,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4010256] [2024-11-08 19:08:29,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:29,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:08:29,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:29,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:08:29,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:08:29,918 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-11-08 19:08:29,918 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 604 transitions, 9385 flow. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:29,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:08:29,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-11-08 19:08:29,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:08:31,595 INFO L124 PetriNetUnfolderBase]: 1145/2968 cut-off events. [2024-11-08 19:08:31,595 INFO L125 PetriNetUnfolderBase]: For 90143/90251 co-relation queries the response was YES. [2024-11-08 19:08:31,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23427 conditions, 2968 events. 1145/2968 cut-off events. For 90143/90251 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 21229 event pairs, 184 based on Foata normal form. 21/2978 useless extension candidates. Maximal degree in co-relation 23296. Up to 1117 conditions per place. [2024-11-08 19:08:31,639 INFO L140 encePairwiseOnDemand]: 37/48 looper letters, 585 selfloop transitions, 89 changer transitions 0/697 dead transitions. [2024-11-08 19:08:31,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 697 transitions, 11990 flow [2024-11-08 19:08:31,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:08:31,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 19:08:31,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 229 transitions. [2024-11-08 19:08:31,641 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6815476190476191 [2024-11-08 19:08:31,641 INFO L175 Difference]: Start difference. First operand has 339 places, 604 transitions, 9385 flow. Second operand 7 states and 229 transitions. [2024-11-08 19:08:31,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 697 transitions, 11990 flow [2024-11-08 19:08:32,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 697 transitions, 11829 flow, removed 47 selfloop flow, removed 4 redundant places. [2024-11-08 19:08:32,147 INFO L231 Difference]: Finished difference. Result has 345 places, 606 transitions, 9565 flow [2024-11-08 19:08:32,147 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=9021, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=592, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=508, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=9565, PETRI_PLACES=345, PETRI_TRANSITIONS=606} [2024-11-08 19:08:32,148 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 300 predicate places. [2024-11-08 19:08:32,148 INFO L471 AbstractCegarLoop]: Abstraction has has 345 places, 606 transitions, 9565 flow [2024-11-08 19:08:32,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:32,148 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:08:32,148 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:32,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 19:08:32,149 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:08:32,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:32,149 INFO L85 PathProgramCache]: Analyzing trace with hash 672937770, now seen corresponding path program 9 times [2024-11-08 19:08:32,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:32,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019279378] [2024-11-08 19:08:32,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:32,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:32,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:32,866 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:08:32,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:32,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019279378] [2024-11-08 19:08:32,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019279378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:32,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:32,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:08:32,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530996652] [2024-11-08 19:08:32,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:32,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:08:32,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:32,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:08:32,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:08:32,903 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-11-08 19:08:32,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 606 transitions, 9565 flow. Second operand has 10 states, 10 states have (on average 22.5) internal successors, (225), 10 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:32,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:08:32,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-11-08 19:08:32,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:08:35,487 INFO L124 PetriNetUnfolderBase]: 1302/3282 cut-off events. [2024-11-08 19:08:35,487 INFO L125 PetriNetUnfolderBase]: For 130740/130817 co-relation queries the response was YES. [2024-11-08 19:08:35,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27215 conditions, 3282 events. 1302/3282 cut-off events. For 130740/130817 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 24109 event pairs, 255 based on Foata normal form. 57/3339 useless extension candidates. Maximal degree in co-relation 27082. Up to 1998 conditions per place. [2024-11-08 19:08:35,550 INFO L140 encePairwiseOnDemand]: 35/48 looper letters, 472 selfloop transitions, 253 changer transitions 0/747 dead transitions. [2024-11-08 19:08:35,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 747 transitions, 13293 flow [2024-11-08 19:08:35,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-08 19:08:35,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2024-11-08 19:08:35,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 744 transitions. [2024-11-08 19:08:35,556 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5535714285714286 [2024-11-08 19:08:35,557 INFO L175 Difference]: Start difference. First operand has 345 places, 606 transitions, 9565 flow. Second operand 28 states and 744 transitions. [2024-11-08 19:08:35,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 747 transitions, 13293 flow [2024-11-08 19:08:36,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 747 transitions, 13128 flow, removed 36 selfloop flow, removed 3 redundant places. [2024-11-08 19:08:36,041 INFO L231 Difference]: Finished difference. Result has 392 places, 700 transitions, 11855 flow [2024-11-08 19:08:36,042 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=9407, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=606, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=169, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=11855, PETRI_PLACES=392, PETRI_TRANSITIONS=700} [2024-11-08 19:08:36,042 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 347 predicate places. [2024-11-08 19:08:36,042 INFO L471 AbstractCegarLoop]: Abstraction has has 392 places, 700 transitions, 11855 flow [2024-11-08 19:08:36,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 22.5) internal successors, (225), 10 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:36,043 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:08:36,043 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:36,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-08 19:08:36,043 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:08:36,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:36,044 INFO L85 PathProgramCache]: Analyzing trace with hash 2007144655, now seen corresponding path program 4 times [2024-11-08 19:08:36,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:36,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855717813] [2024-11-08 19:08:36,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:36,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:36,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:36,514 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:08:36,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:36,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855717813] [2024-11-08 19:08:36,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855717813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:36,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:36,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 19:08:36,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371115890] [2024-11-08 19:08:36,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:36,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:08:36,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:36,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:08:36,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:08:36,545 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-11-08 19:08:36,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 700 transitions, 11855 flow. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:36,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:08:36,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-11-08 19:08:36,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:08:38,297 INFO L124 PetriNetUnfolderBase]: 1167/2987 cut-off events. [2024-11-08 19:08:38,297 INFO L125 PetriNetUnfolderBase]: For 132867/133112 co-relation queries the response was YES. [2024-11-08 19:08:38,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26274 conditions, 2987 events. 1167/2987 cut-off events. For 132867/133112 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 21309 event pairs, 165 based on Foata normal form. 39/3011 useless extension candidates. Maximal degree in co-relation 26119. Up to 1095 conditions per place. [2024-11-08 19:08:38,470 INFO L140 encePairwiseOnDemand]: 37/48 looper letters, 630 selfloop transitions, 95 changer transitions 0/748 dead transitions. [2024-11-08 19:08:38,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 748 transitions, 13916 flow [2024-11-08 19:08:38,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:08:38,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 19:08:38,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 227 transitions. [2024-11-08 19:08:38,472 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6755952380952381 [2024-11-08 19:08:38,472 INFO L175 Difference]: Start difference. First operand has 392 places, 700 transitions, 11855 flow. Second operand 7 states and 227 transitions. [2024-11-08 19:08:38,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 748 transitions, 13916 flow [2024-11-08 19:08:39,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 748 transitions, 13240 flow, removed 246 selfloop flow, removed 9 redundant places. [2024-11-08 19:08:39,040 INFO L231 Difference]: Finished difference. Result has 384 places, 630 transitions, 10549 flow [2024-11-08 19:08:39,041 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=10029, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=619, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=528, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=10549, PETRI_PLACES=384, PETRI_TRANSITIONS=630} [2024-11-08 19:08:39,041 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 339 predicate places. [2024-11-08 19:08:39,041 INFO L471 AbstractCegarLoop]: Abstraction has has 384 places, 630 transitions, 10549 flow [2024-11-08 19:08:39,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:39,042 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:08:39,042 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:39,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-08 19:08:39,042 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:08:39,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:39,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1429565229, now seen corresponding path program 5 times [2024-11-08 19:08:39,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:39,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263519120] [2024-11-08 19:08:39,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:39,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:39,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:39,574 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:08:39,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:39,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263519120] [2024-11-08 19:08:39,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263519120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:39,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:39,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:08:39,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232031743] [2024-11-08 19:08:39,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:39,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:08:39,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:39,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:08:39,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:08:39,607 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-11-08 19:08:39,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 630 transitions, 10549 flow. Second operand has 10 states, 10 states have (on average 22.5) internal successors, (225), 10 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:39,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:08:39,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-11-08 19:08:39,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:08:42,004 INFO L124 PetriNetUnfolderBase]: 1318/3272 cut-off events. [2024-11-08 19:08:42,004 INFO L125 PetriNetUnfolderBase]: For 133262/133399 co-relation queries the response was YES. [2024-11-08 19:08:42,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28228 conditions, 3272 events. 1318/3272 cut-off events. For 133262/133399 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 23652 event pairs, 233 based on Foata normal form. 77/3339 useless extension candidates. Maximal degree in co-relation 28075. Up to 2206 conditions per place. [2024-11-08 19:08:42,064 INFO L140 encePairwiseOnDemand]: 35/48 looper letters, 561 selfloop transitions, 189 changer transitions 0/772 dead transitions. [2024-11-08 19:08:42,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 772 transitions, 14378 flow [2024-11-08 19:08:42,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-08 19:08:42,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-08 19:08:42,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 585 transitions. [2024-11-08 19:08:42,066 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5803571428571429 [2024-11-08 19:08:42,067 INFO L175 Difference]: Start difference. First operand has 384 places, 630 transitions, 10549 flow. Second operand 21 states and 585 transitions. [2024-11-08 19:08:42,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 772 transitions, 14378 flow [2024-11-08 19:08:42,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 772 transitions, 14189 flow, removed 59 selfloop flow, removed 3 redundant places. [2024-11-08 19:08:42,789 INFO L231 Difference]: Finished difference. Result has 417 places, 713 transitions, 12554 flow [2024-11-08 19:08:42,790 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=10397, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=630, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=119, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=498, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=12554, PETRI_PLACES=417, PETRI_TRANSITIONS=713} [2024-11-08 19:08:42,790 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 372 predicate places. [2024-11-08 19:08:42,791 INFO L471 AbstractCegarLoop]: Abstraction has has 417 places, 713 transitions, 12554 flow [2024-11-08 19:08:42,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 22.5) internal successors, (225), 10 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:42,791 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:08:42,791 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:42,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-08 19:08:42,792 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:08:42,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:42,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1547403858, now seen corresponding path program 10 times [2024-11-08 19:08:42,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:42,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887154731] [2024-11-08 19:08:42,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:42,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:42,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:43,479 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:08:43,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:43,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887154731] [2024-11-08 19:08:43,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887154731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:43,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:43,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:08:43,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364998141] [2024-11-08 19:08:43,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:43,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:08:43,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:43,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:08:43,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:08:43,523 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-11-08 19:08:43,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 713 transitions, 12554 flow. Second operand has 10 states, 10 states have (on average 22.5) internal successors, (225), 10 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:43,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:08:43,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-11-08 19:08:43,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:08:45,908 INFO L124 PetriNetUnfolderBase]: 1347/3403 cut-off events. [2024-11-08 19:08:45,908 INFO L125 PetriNetUnfolderBase]: For 194606/194702 co-relation queries the response was YES. [2024-11-08 19:08:45,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31978 conditions, 3403 events. 1347/3403 cut-off events. For 194606/194702 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 25106 event pairs, 256 based on Foata normal form. 60/3459 useless extension candidates. Maximal degree in co-relation 31810. Up to 2199 conditions per place. [2024-11-08 19:08:45,976 INFO L140 encePairwiseOnDemand]: 35/48 looper letters, 598 selfloop transitions, 196 changer transitions 0/816 dead transitions. [2024-11-08 19:08:45,976 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 816 transitions, 15988 flow [2024-11-08 19:08:45,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-08 19:08:45,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-08 19:08:45,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 637 transitions. [2024-11-08 19:08:45,978 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5769927536231884 [2024-11-08 19:08:45,978 INFO L175 Difference]: Start difference. First operand has 417 places, 713 transitions, 12554 flow. Second operand 23 states and 637 transitions. [2024-11-08 19:08:45,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 439 places, 816 transitions, 15988 flow [2024-11-08 19:08:46,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 816 transitions, 15478 flow, removed 213 selfloop flow, removed 6 redundant places. [2024-11-08 19:08:46,723 INFO L231 Difference]: Finished difference. Result has 443 places, 753 transitions, 13373 flow [2024-11-08 19:08:46,723 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=12096, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=713, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=164, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=543, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=13373, PETRI_PLACES=443, PETRI_TRANSITIONS=753} [2024-11-08 19:08:46,724 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 398 predicate places. [2024-11-08 19:08:46,724 INFO L471 AbstractCegarLoop]: Abstraction has has 443 places, 753 transitions, 13373 flow [2024-11-08 19:08:46,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 22.5) internal successors, (225), 10 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:46,724 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:08:46,724 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:46,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-08 19:08:46,725 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:08:46,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:46,725 INFO L85 PathProgramCache]: Analyzing trace with hash 750371400, now seen corresponding path program 11 times [2024-11-08 19:08:46,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:46,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598429618] [2024-11-08 19:08:46,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:46,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:46,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:47,285 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:08:47,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:47,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598429618] [2024-11-08 19:08:47,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598429618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:47,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:47,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:08:47,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086872966] [2024-11-08 19:08:47,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:47,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:08:47,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:47,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:08:47,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:08:47,321 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-11-08 19:08:47,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 753 transitions, 13373 flow. Second operand has 10 states, 10 states have (on average 22.5) internal successors, (225), 10 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:47,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:08:47,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-11-08 19:08:47,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:08:50,249 INFO L124 PetriNetUnfolderBase]: 1426/3602 cut-off events. [2024-11-08 19:08:50,249 INFO L125 PetriNetUnfolderBase]: For 253134/253223 co-relation queries the response was YES. [2024-11-08 19:08:50,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35305 conditions, 3602 events. 1426/3602 cut-off events. For 253134/253223 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 26966 event pairs, 263 based on Foata normal form. 60/3658 useless extension candidates. Maximal degree in co-relation 35130. Up to 2255 conditions per place. [2024-11-08 19:08:50,334 INFO L140 encePairwiseOnDemand]: 35/48 looper letters, 620 selfloop transitions, 224 changer transitions 0/866 dead transitions. [2024-11-08 19:08:50,334 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 866 transitions, 17312 flow [2024-11-08 19:08:50,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-08 19:08:50,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-11-08 19:08:50,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 826 transitions. [2024-11-08 19:08:50,337 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5551075268817204 [2024-11-08 19:08:50,337 INFO L175 Difference]: Start difference. First operand has 443 places, 753 transitions, 13373 flow. Second operand 31 states and 826 transitions. [2024-11-08 19:08:50,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 866 transitions, 17312 flow [2024-11-08 19:08:51,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 866 transitions, 17137 flow, removed 80 selfloop flow, removed 2 redundant places. [2024-11-08 19:08:51,571 INFO L231 Difference]: Finished difference. Result has 488 places, 809 transitions, 14937 flow [2024-11-08 19:08:51,572 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=13198, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=753, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=176, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=565, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=14937, PETRI_PLACES=488, PETRI_TRANSITIONS=809} [2024-11-08 19:08:51,572 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 443 predicate places. [2024-11-08 19:08:51,572 INFO L471 AbstractCegarLoop]: Abstraction has has 488 places, 809 transitions, 14937 flow [2024-11-08 19:08:51,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 22.5) internal successors, (225), 10 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:51,572 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:08:51,573 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:51,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-08 19:08:51,573 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:08:51,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:51,573 INFO L85 PathProgramCache]: Analyzing trace with hash 913725523, now seen corresponding path program 6 times [2024-11-08 19:08:51,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:51,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368692192] [2024-11-08 19:08:51,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:51,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:51,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:51,850 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:08:51,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:51,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368692192] [2024-11-08 19:08:51,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368692192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:51,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:51,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 19:08:51,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058272070] [2024-11-08 19:08:51,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:51,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:08:51,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:51,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:08:51,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:08:51,875 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-11-08 19:08:51,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 488 places, 809 transitions, 14937 flow. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:51,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:08:51,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-11-08 19:08:51,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:08:53,828 INFO L124 PetriNetUnfolderBase]: 1295/3319 cut-off events. [2024-11-08 19:08:53,829 INFO L125 PetriNetUnfolderBase]: For 236415/236675 co-relation queries the response was YES. [2024-11-08 19:08:53,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33678 conditions, 3319 events. 1295/3319 cut-off events. For 236415/236675 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 24403 event pairs, 203 based on Foata normal form. 20/3330 useless extension candidates. Maximal degree in co-relation 33485. Up to 1180 conditions per place. [2024-11-08 19:08:53,879 INFO L140 encePairwiseOnDemand]: 37/48 looper letters, 691 selfloop transitions, 120 changer transitions 0/834 dead transitions. [2024-11-08 19:08:53,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 834 transitions, 16389 flow [2024-11-08 19:08:53,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:08:53,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 19:08:53,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 229 transitions. [2024-11-08 19:08:53,880 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6815476190476191 [2024-11-08 19:08:53,880 INFO L175 Difference]: Start difference. First operand has 488 places, 809 transitions, 14937 flow. Second operand 7 states and 229 transitions. [2024-11-08 19:08:53,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 481 places, 834 transitions, 16389 flow [2024-11-08 19:08:54,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 834 transitions, 15872 flow, removed 95 selfloop flow, removed 33 redundant places. [2024-11-08 19:08:54,915 INFO L231 Difference]: Finished difference. Result has 451 places, 747 transitions, 13554 flow [2024-11-08 19:08:54,917 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=12918, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=736, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=619, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=13554, PETRI_PLACES=451, PETRI_TRANSITIONS=747} [2024-11-08 19:08:54,919 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 406 predicate places. [2024-11-08 19:08:54,919 INFO L471 AbstractCegarLoop]: Abstraction has has 451 places, 747 transitions, 13554 flow [2024-11-08 19:08:54,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:54,919 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:08:54,919 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:54,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-08 19:08:54,920 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:08:54,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:54,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1087679857, now seen corresponding path program 7 times [2024-11-08 19:08:54,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:54,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071933872] [2024-11-08 19:08:54,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:54,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:54,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:55,176 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:08:55,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:55,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071933872] [2024-11-08 19:08:55,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071933872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:55,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:55,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 19:08:55,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751533868] [2024-11-08 19:08:55,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:55,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:08:55,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:55,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:08:55,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:08:55,197 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-11-08 19:08:55,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 747 transitions, 13554 flow. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:55,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:08:55,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-11-08 19:08:55,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:08:56,828 INFO L124 PetriNetUnfolderBase]: 1257/3245 cut-off events. [2024-11-08 19:08:56,829 INFO L125 PetriNetUnfolderBase]: For 170020/170160 co-relation queries the response was YES. [2024-11-08 19:08:56,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31090 conditions, 3245 events. 1257/3245 cut-off events. For 170020/170160 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 23880 event pairs, 204 based on Foata normal form. 24/3262 useless extension candidates. Maximal degree in co-relation 30918. Up to 1245 conditions per place. [2024-11-08 19:08:56,899 INFO L140 encePairwiseOnDemand]: 36/48 looper letters, 653 selfloop transitions, 121 changer transitions 0/797 dead transitions. [2024-11-08 19:08:56,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 797 transitions, 15804 flow [2024-11-08 19:08:56,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:08:56,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 19:08:56,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 227 transitions. [2024-11-08 19:08:56,900 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6755952380952381 [2024-11-08 19:08:56,900 INFO L175 Difference]: Start difference. First operand has 451 places, 747 transitions, 13554 flow. Second operand 7 states and 227 transitions. [2024-11-08 19:08:56,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 797 transitions, 15804 flow [2024-11-08 19:08:57,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 797 transitions, 15641 flow, removed 37 selfloop flow, removed 3 redundant places. [2024-11-08 19:08:57,799 INFO L231 Difference]: Finished difference. Result has 457 places, 744 transitions, 13636 flow [2024-11-08 19:08:57,800 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=13064, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=731, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=615, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=13636, PETRI_PLACES=457, PETRI_TRANSITIONS=744} [2024-11-08 19:08:57,801 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 412 predicate places. [2024-11-08 19:08:57,802 INFO L471 AbstractCegarLoop]: Abstraction has has 457 places, 744 transitions, 13636 flow [2024-11-08 19:08:57,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:57,803 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:08:57,803 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:57,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-08 19:08:57,803 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:08:57,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:57,804 INFO L85 PathProgramCache]: Analyzing trace with hash 663044201, now seen corresponding path program 8 times [2024-11-08 19:08:57,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:57,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991587298] [2024-11-08 19:08:57,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:57,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:57,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:58,196 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:08:58,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:58,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991587298] [2024-11-08 19:08:58,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991587298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:58,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:58,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 19:08:58,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119043664] [2024-11-08 19:08:58,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:58,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:08:58,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:58,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:08:58,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:08:58,218 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-11-08 19:08:58,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 744 transitions, 13636 flow. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:58,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:08:58,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-11-08 19:08:58,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:08:59,881 INFO L124 PetriNetUnfolderBase]: 1161/3003 cut-off events. [2024-11-08 19:08:59,881 INFO L125 PetriNetUnfolderBase]: For 164724/164990 co-relation queries the response was YES. [2024-11-08 19:08:59,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29185 conditions, 3003 events. 1161/3003 cut-off events. For 164724/164990 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 21690 event pairs, 175 based on Foata normal form. 26/3016 useless extension candidates. Maximal degree in co-relation 29010. Up to 1011 conditions per place. [2024-11-08 19:08:59,926 INFO L140 encePairwiseOnDemand]: 38/48 looper letters, 526 selfloop transitions, 173 changer transitions 0/722 dead transitions. [2024-11-08 19:08:59,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 722 transitions, 14423 flow [2024-11-08 19:08:59,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:08:59,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 19:08:59,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 225 transitions. [2024-11-08 19:08:59,927 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6696428571428571 [2024-11-08 19:08:59,927 INFO L175 Difference]: Start difference. First operand has 457 places, 744 transitions, 13636 flow. Second operand 7 states and 225 transitions. [2024-11-08 19:08:59,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 722 transitions, 14423 flow [2024-11-08 19:09:00,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 722 transitions, 13838 flow, removed 81 selfloop flow, removed 22 redundant places. [2024-11-08 19:09:00,618 INFO L231 Difference]: Finished difference. Result has 420 places, 651 transitions, 12168 flow [2024-11-08 19:09:00,618 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=11521, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=647, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=169, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=474, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=12168, PETRI_PLACES=420, PETRI_TRANSITIONS=651} [2024-11-08 19:09:00,619 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 375 predicate places. [2024-11-08 19:09:00,619 INFO L471 AbstractCegarLoop]: Abstraction has has 420 places, 651 transitions, 12168 flow [2024-11-08 19:09:00,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:09:00,620 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:09:00,620 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:09:00,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-08 19:09:00,620 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:09:00,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:09:00,621 INFO L85 PathProgramCache]: Analyzing trace with hash 833599368, now seen corresponding path program 12 times [2024-11-08 19:09:00,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:09:00,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838198699] [2024-11-08 19:09:00,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:09:00,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:09:00,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:09:01,148 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:09:01,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:09:01,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838198699] [2024-11-08 19:09:01,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838198699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:09:01,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:09:01,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:09:01,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436024965] [2024-11-08 19:09:01,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:09:01,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:09:01,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:09:01,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:09:01,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:09:01,181 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-11-08 19:09:01,181 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 651 transitions, 12168 flow. Second operand has 10 states, 10 states have (on average 22.5) internal successors, (225), 10 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:09:01,181 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:09:01,181 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-11-08 19:09:01,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:09:03,527 INFO L124 PetriNetUnfolderBase]: 1230/3103 cut-off events. [2024-11-08 19:09:03,527 INFO L125 PetriNetUnfolderBase]: For 152232/152325 co-relation queries the response was YES. [2024-11-08 19:09:03,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29200 conditions, 3103 events. 1230/3103 cut-off events. For 152232/152325 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 22445 event pairs, 240 based on Foata normal form. 58/3158 useless extension candidates. Maximal degree in co-relation 29037. Up to 2007 conditions per place. [2024-11-08 19:09:03,610 INFO L140 encePairwiseOnDemand]: 35/48 looper letters, 546 selfloop transitions, 159 changer transitions 0/727 dead transitions. [2024-11-08 19:09:03,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 727 transitions, 15033 flow [2024-11-08 19:09:03,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-08 19:09:03,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-08 19:09:03,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 655 transitions. [2024-11-08 19:09:03,612 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5685763888888888 [2024-11-08 19:09:03,612 INFO L175 Difference]: Start difference. First operand has 420 places, 651 transitions, 12168 flow. Second operand 24 states and 655 transitions. [2024-11-08 19:09:03,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 727 transitions, 15033 flow [2024-11-08 19:09:04,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 727 transitions, 14828 flow, removed 33 selfloop flow, removed 4 redundant places. [2024-11-08 19:09:04,315 INFO L231 Difference]: Finished difference. Result has 450 places, 684 transitions, 13114 flow [2024-11-08 19:09:04,316 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=12008, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=651, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=515, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=13114, PETRI_PLACES=450, PETRI_TRANSITIONS=684} [2024-11-08 19:09:04,317 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 405 predicate places. [2024-11-08 19:09:04,317 INFO L471 AbstractCegarLoop]: Abstraction has has 450 places, 684 transitions, 13114 flow [2024-11-08 19:09:04,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 22.5) internal successors, (225), 10 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:09:04,317 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:09:04,318 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:09:04,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-08 19:09:04,318 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:09:04,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:09:04,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1825357911, now seen corresponding path program 1 times [2024-11-08 19:09:04,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:09:04,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286747757] [2024-11-08 19:09:04,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:09:04,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:09:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:09:04,807 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:09:04,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:09:04,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286747757] [2024-11-08 19:09:04,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286747757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:09:04,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:09:04,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:09:04,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719381669] [2024-11-08 19:09:04,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:09:04,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:09:04,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:09:04,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:09:04,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:09:04,854 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 48 [2024-11-08 19:09:04,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 684 transitions, 13114 flow. Second operand has 11 states, 11 states have (on average 17.545454545454547) internal successors, (193), 11 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:09:04,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:09:04,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 48 [2024-11-08 19:09:04,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:09:07,631 INFO L124 PetriNetUnfolderBase]: 1953/4355 cut-off events. [2024-11-08 19:09:07,631 INFO L125 PetriNetUnfolderBase]: For 251435/251469 co-relation queries the response was YES. [2024-11-08 19:09:07,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42541 conditions, 4355 events. 1953/4355 cut-off events. For 251435/251469 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 30955 event pairs, 490 based on Foata normal form. 28/4380 useless extension candidates. Maximal degree in co-relation 42367. Up to 1579 conditions per place. [2024-11-08 19:09:07,716 INFO L140 encePairwiseOnDemand]: 33/48 looper letters, 791 selfloop transitions, 175 changer transitions 0/982 dead transitions. [2024-11-08 19:09:07,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 982 transitions, 20739 flow [2024-11-08 19:09:07,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-08 19:09:07,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-08 19:09:07,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 497 transitions. [2024-11-08 19:09:07,718 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5449561403508771 [2024-11-08 19:09:07,718 INFO L175 Difference]: Start difference. First operand has 450 places, 684 transitions, 13114 flow. Second operand 19 states and 497 transitions. [2024-11-08 19:09:07,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 982 transitions, 20739 flow [2024-11-08 19:09:08,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 982 transitions, 20336 flow, removed 154 selfloop flow, removed 7 redundant places. [2024-11-08 19:09:08,988 INFO L231 Difference]: Finished difference. Result has 470 places, 784 transitions, 15311 flow [2024-11-08 19:09:08,989 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=12750, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=684, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=542, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=15311, PETRI_PLACES=470, PETRI_TRANSITIONS=784} [2024-11-08 19:09:08,989 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 425 predicate places. [2024-11-08 19:09:08,989 INFO L471 AbstractCegarLoop]: Abstraction has has 470 places, 784 transitions, 15311 flow [2024-11-08 19:09:08,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 17.545454545454547) internal successors, (193), 11 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:09:08,990 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:09:08,990 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:09:08,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-08 19:09:08,990 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:09:08,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:09:08,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1917782896, now seen corresponding path program 1 times [2024-11-08 19:09:08,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:09:08,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948934029] [2024-11-08 19:09:08,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:09:08,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:09:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:09:09,496 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:09:09,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:09:09,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948934029] [2024-11-08 19:09:09,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948934029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:09:09,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:09:09,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:09:09,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701370397] [2024-11-08 19:09:09,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:09:09,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:09:09,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:09:09,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:09:09,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:09:09,562 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 48 [2024-11-08 19:09:09,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 784 transitions, 15311 flow. Second operand has 11 states, 11 states have (on average 17.545454545454547) internal successors, (193), 11 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:09:09,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:09:09,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 48 [2024-11-08 19:09:09,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:09:13,272 INFO L124 PetriNetUnfolderBase]: 2041/4526 cut-off events. [2024-11-08 19:09:13,272 INFO L125 PetriNetUnfolderBase]: For 296267/296286 co-relation queries the response was YES. [2024-11-08 19:09:13,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46219 conditions, 4526 events. 2041/4526 cut-off events. For 296267/296286 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 32371 event pairs, 484 based on Foata normal form. 33/4559 useless extension candidates. Maximal degree in co-relation 46038. Up to 1756 conditions per place. [2024-11-08 19:09:13,384 INFO L140 encePairwiseOnDemand]: 33/48 looper letters, 878 selfloop transitions, 119 changer transitions 0/1014 dead transitions. [2024-11-08 19:09:13,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 1014 transitions, 22090 flow [2024-11-08 19:09:13,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-08 19:09:13,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-08 19:09:13,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 489 transitions. [2024-11-08 19:09:13,387 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5361842105263158 [2024-11-08 19:09:13,387 INFO L175 Difference]: Start difference. First operand has 470 places, 784 transitions, 15311 flow. Second operand 19 states and 489 transitions. [2024-11-08 19:09:13,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 1014 transitions, 22090 flow [2024-11-08 19:09:15,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 484 places, 1014 transitions, 21705 flow, removed 143 selfloop flow, removed 4 redundant places. [2024-11-08 19:09:15,152 INFO L231 Difference]: Finished difference. Result has 493 places, 831 transitions, 16631 flow [2024-11-08 19:09:15,153 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=15017, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=784, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=691, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=16631, PETRI_PLACES=493, PETRI_TRANSITIONS=831} [2024-11-08 19:09:15,153 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 448 predicate places. [2024-11-08 19:09:15,154 INFO L471 AbstractCegarLoop]: Abstraction has has 493 places, 831 transitions, 16631 flow [2024-11-08 19:09:15,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 17.545454545454547) internal successors, (193), 11 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:09:15,154 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:09:15,154 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:09:15,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-08 19:09:15,155 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:09:15,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:09:15,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1202962759, now seen corresponding path program 2 times [2024-11-08 19:09:15,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:09:15,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095025341] [2024-11-08 19:09:15,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:09:15,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:09:15,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:09:15,998 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:09:15,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:09:15,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095025341] [2024-11-08 19:09:15,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095025341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:09:15,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:09:15,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:09:15,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348515768] [2024-11-08 19:09:15,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:09:16,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:09:16,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:09:16,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:09:16,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:09:16,031 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2024-11-08 19:09:16,032 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 493 places, 831 transitions, 16631 flow. Second operand has 10 states, 10 states have (on average 19.7) internal successors, (197), 10 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:09:16,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:09:16,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2024-11-08 19:09:16,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:09:19,521 INFO L124 PetriNetUnfolderBase]: 2119/4774 cut-off events. [2024-11-08 19:09:19,521 INFO L125 PetriNetUnfolderBase]: For 320033/320054 co-relation queries the response was YES. [2024-11-08 19:09:19,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49497 conditions, 4774 events. 2119/4774 cut-off events. For 320033/320054 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 35157 event pairs, 387 based on Foata normal form. 26/4800 useless extension candidates. Maximal degree in co-relation 49308. Up to 3020 conditions per place. [2024-11-08 19:09:19,632 INFO L140 encePairwiseOnDemand]: 36/48 looper letters, 690 selfloop transitions, 262 changer transitions 0/971 dead transitions. [2024-11-08 19:09:19,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 971 transitions, 21481 flow [2024-11-08 19:09:19,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 19:09:19,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-08 19:09:19,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 395 transitions. [2024-11-08 19:09:19,634 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5486111111111112 [2024-11-08 19:09:19,634 INFO L175 Difference]: Start difference. First operand has 493 places, 831 transitions, 16631 flow. Second operand 15 states and 395 transitions. [2024-11-08 19:09:19,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 971 transitions, 21481 flow [2024-11-08 19:09:21,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 502 places, 971 transitions, 20886 flow, removed 191 selfloop flow, removed 5 redundant places. [2024-11-08 19:09:21,292 INFO L231 Difference]: Finished difference. Result has 510 places, 862 transitions, 17841 flow [2024-11-08 19:09:21,293 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=16163, PETRI_DIFFERENCE_MINUEND_PLACES=488, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=831, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=232, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=577, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=17841, PETRI_PLACES=510, PETRI_TRANSITIONS=862} [2024-11-08 19:09:21,293 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 465 predicate places. [2024-11-08 19:09:21,293 INFO L471 AbstractCegarLoop]: Abstraction has has 510 places, 862 transitions, 17841 flow [2024-11-08 19:09:21,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 19.7) internal successors, (197), 10 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:09:21,294 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:09:21,294 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:09:21,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-08 19:09:21,294 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:09:21,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:09:21,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1224124488, now seen corresponding path program 2 times [2024-11-08 19:09:21,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:09:21,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247727945] [2024-11-08 19:09:21,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:09:21,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:09:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:09:21,985 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:09:21,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:09:21,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247727945] [2024-11-08 19:09:21,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247727945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:09:21,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:09:21,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:09:21,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382308335] [2024-11-08 19:09:21,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:09:21,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:09:21,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:09:21,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:09:21,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:09:22,071 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 48 [2024-11-08 19:09:22,072 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 510 places, 862 transitions, 17841 flow. Second operand has 11 states, 11 states have (on average 17.545454545454547) internal successors, (193), 11 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:09:22,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:09:22,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 48 [2024-11-08 19:09:22,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:09:26,485 INFO L124 PetriNetUnfolderBase]: 2288/4998 cut-off events. [2024-11-08 19:09:26,485 INFO L125 PetriNetUnfolderBase]: For 368141/368177 co-relation queries the response was YES. [2024-11-08 19:09:26,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54097 conditions, 4998 events. 2288/4998 cut-off events. For 368141/368177 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 36341 event pairs, 530 based on Foata normal form. 35/5033 useless extension candidates. Maximal degree in co-relation 53901. Up to 1984 conditions per place. [2024-11-08 19:09:26,626 INFO L140 encePairwiseOnDemand]: 33/48 looper letters, 925 selfloop transitions, 150 changer transitions 0/1094 dead transitions. [2024-11-08 19:09:26,626 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 527 places, 1094 transitions, 24934 flow [2024-11-08 19:09:26,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-08 19:09:26,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-08 19:09:26,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 462 transitions. [2024-11-08 19:09:26,627 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5347222222222222 [2024-11-08 19:09:26,627 INFO L175 Difference]: Start difference. First operand has 510 places, 862 transitions, 17841 flow. Second operand 18 states and 462 transitions. [2024-11-08 19:09:26,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 527 places, 1094 transitions, 24934 flow [2024-11-08 19:09:28,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 525 places, 1094 transitions, 24811 flow, removed 48 selfloop flow, removed 2 redundant places. [2024-11-08 19:09:28,589 INFO L231 Difference]: Finished difference. Result has 537 places, 907 transitions, 19530 flow [2024-11-08 19:09:28,591 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=17761, PETRI_DIFFERENCE_MINUEND_PLACES=508, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=862, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=730, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=19530, PETRI_PLACES=537, PETRI_TRANSITIONS=907} [2024-11-08 19:09:28,591 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 492 predicate places. [2024-11-08 19:09:28,591 INFO L471 AbstractCegarLoop]: Abstraction has has 537 places, 907 transitions, 19530 flow [2024-11-08 19:09:28,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 17.545454545454547) internal successors, (193), 11 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:09:28,592 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:09:28,592 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:09:28,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-08 19:09:28,592 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:09:28,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:09:28,593 INFO L85 PathProgramCache]: Analyzing trace with hash 778619395, now seen corresponding path program 3 times [2024-11-08 19:09:28,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:09:28,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735292570] [2024-11-08 19:09:28,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:09:28,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:09:28,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:09:29,208 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:09:29,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:09:29,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735292570] [2024-11-08 19:09:29,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735292570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:09:29,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:09:29,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:09:29,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134080544] [2024-11-08 19:09:29,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:09:29,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:09:29,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:09:29,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:09:29,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:09:29,279 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 48 [2024-11-08 19:09:29,280 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 537 places, 907 transitions, 19530 flow. Second operand has 11 states, 11 states have (on average 17.545454545454547) internal successors, (193), 11 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:09:29,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:09:29,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 48 [2024-11-08 19:09:29,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:09:33,655 INFO L124 PetriNetUnfolderBase]: 2521/5439 cut-off events. [2024-11-08 19:09:33,655 INFO L125 PetriNetUnfolderBase]: For 440991/441025 co-relation queries the response was YES. [2024-11-08 19:09:33,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61858 conditions, 5439 events. 2521/5439 cut-off events. For 440991/441025 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 39868 event pairs, 555 based on Foata normal form. 28/5467 useless extension candidates. Maximal degree in co-relation 61649. Up to 1975 conditions per place. [2024-11-08 19:09:33,824 INFO L140 encePairwiseOnDemand]: 33/48 looper letters, 938 selfloop transitions, 172 changer transitions 0/1128 dead transitions. [2024-11-08 19:09:33,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 554 places, 1128 transitions, 26619 flow [2024-11-08 19:09:33,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-08 19:09:33,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-08 19:09:33,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 463 transitions. [2024-11-08 19:09:33,826 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5358796296296297 [2024-11-08 19:09:33,826 INFO L175 Difference]: Start difference. First operand has 537 places, 907 transitions, 19530 flow. Second operand 18 states and 463 transitions. [2024-11-08 19:09:33,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 554 places, 1128 transitions, 26619 flow [2024-11-08 19:09:36,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 551 places, 1128 transitions, 26406 flow, removed 74 selfloop flow, removed 3 redundant places. [2024-11-08 19:09:36,621 INFO L231 Difference]: Finished difference. Result has 563 places, 956 transitions, 21122 flow [2024-11-08 19:09:36,621 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=19355, PETRI_DIFFERENCE_MINUEND_PLACES=534, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=907, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=124, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=752, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=21122, PETRI_PLACES=563, PETRI_TRANSITIONS=956} [2024-11-08 19:09:36,622 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 518 predicate places. [2024-11-08 19:09:36,622 INFO L471 AbstractCegarLoop]: Abstraction has has 563 places, 956 transitions, 21122 flow [2024-11-08 19:09:36,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 17.545454545454547) internal successors, (193), 11 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:09:36,623 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:09:36,623 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:09:36,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-08 19:09:36,623 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:09:36,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:09:36,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1757841347, now seen corresponding path program 4 times [2024-11-08 19:09:36,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:09:36,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18437439] [2024-11-08 19:09:36,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:09:36,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:09:36,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:09:37,176 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:09:37,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:09:37,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18437439] [2024-11-08 19:09:37,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18437439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:09:37,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:09:37,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:09:37,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67547232] [2024-11-08 19:09:37,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:09:37,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:09:37,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:09:37,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:09:37,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:09:37,262 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 48 [2024-11-08 19:09:37,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 563 places, 956 transitions, 21122 flow. Second operand has 11 states, 11 states have (on average 17.545454545454547) internal successors, (193), 11 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:09:37,263 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:09:37,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 48 [2024-11-08 19:09:37,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:09:42,476 INFO L124 PetriNetUnfolderBase]: 2730/5896 cut-off events. [2024-11-08 19:09:42,477 INFO L125 PetriNetUnfolderBase]: For 510915/510939 co-relation queries the response was YES. [2024-11-08 19:09:42,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68941 conditions, 5896 events. 2730/5896 cut-off events. For 510915/510939 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 44432 event pairs, 577 based on Foata normal form. 38/5934 useless extension candidates. Maximal degree in co-relation 68720. Up to 1978 conditions per place. [2024-11-08 19:09:42,731 INFO L140 encePairwiseOnDemand]: 33/48 looper letters, 945 selfloop transitions, 279 changer transitions 0/1242 dead transitions. [2024-11-08 19:09:42,731 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 584 places, 1242 transitions, 29772 flow [2024-11-08 19:09:42,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-08 19:09:42,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-08 19:09:42,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 572 transitions. [2024-11-08 19:09:42,733 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2024-11-08 19:09:42,733 INFO L175 Difference]: Start difference. First operand has 563 places, 956 transitions, 21122 flow. Second operand 22 states and 572 transitions. [2024-11-08 19:09:42,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 584 places, 1242 transitions, 29772 flow [2024-11-08 19:09:46,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 583 places, 1242 transitions, 29571 flow, removed 100 selfloop flow, removed 1 redundant places. [2024-11-08 19:09:46,075 INFO L231 Difference]: Finished difference. Result has 596 places, 1039 transitions, 23866 flow [2024-11-08 19:09:46,076 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=20921, PETRI_DIFFERENCE_MINUEND_PLACES=562, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=956, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=197, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=703, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=23866, PETRI_PLACES=596, PETRI_TRANSITIONS=1039} [2024-11-08 19:09:46,077 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 551 predicate places. [2024-11-08 19:09:46,077 INFO L471 AbstractCegarLoop]: Abstraction has has 596 places, 1039 transitions, 23866 flow [2024-11-08 19:09:46,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 17.545454545454547) internal successors, (193), 11 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:09:46,077 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:09:46,077 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:09:46,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-08 19:09:46,078 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:09:46,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:09:46,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1873592256, now seen corresponding path program 3 times [2024-11-08 19:09:46,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:09:46,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236369815] [2024-11-08 19:09:46,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:09:46,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:09:46,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:09:46,521 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:09:46,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:09:46,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236369815] [2024-11-08 19:09:46,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236369815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:09:46,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:09:46,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:09:46,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279559823] [2024-11-08 19:09:46,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:09:46,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:09:46,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:09:46,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:09:46,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:09:46,556 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2024-11-08 19:09:46,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 596 places, 1039 transitions, 23866 flow. Second operand has 10 states, 10 states have (on average 19.7) internal successors, (197), 10 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:09:46,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:09:46,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2024-11-08 19:09:46,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:09:51,543 INFO L124 PetriNetUnfolderBase]: 2740/6016 cut-off events. [2024-11-08 19:09:51,543 INFO L125 PetriNetUnfolderBase]: For 562737/562794 co-relation queries the response was YES. [2024-11-08 19:09:51,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71479 conditions, 6016 events. 2740/6016 cut-off events. For 562737/562794 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 46578 event pairs, 442 based on Foata normal form. 31/6047 useless extension candidates. Maximal degree in co-relation 71245. Up to 3974 conditions per place. [2024-11-08 19:09:51,756 INFO L140 encePairwiseOnDemand]: 36/48 looper letters, 880 selfloop transitions, 297 changer transitions 0/1201 dead transitions. [2024-11-08 19:09:51,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 610 places, 1201 transitions, 30253 flow [2024-11-08 19:09:51,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 19:09:51,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-08 19:09:51,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 395 transitions. [2024-11-08 19:09:51,758 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5486111111111112 [2024-11-08 19:09:51,758 INFO L175 Difference]: Start difference. First operand has 596 places, 1039 transitions, 23866 flow. Second operand 15 states and 395 transitions. [2024-11-08 19:09:51,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 610 places, 1201 transitions, 30253 flow [2024-11-08 19:09:55,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 606 places, 1201 transitions, 29683 flow, removed 223 selfloop flow, removed 4 redundant places. [2024-11-08 19:09:55,618 INFO L231 Difference]: Finished difference. Result has 614 places, 1069 transitions, 25353 flow [2024-11-08 19:09:55,619 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=23410, PETRI_DIFFERENCE_MINUEND_PLACES=592, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1039, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=267, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=751, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=25353, PETRI_PLACES=614, PETRI_TRANSITIONS=1069} [2024-11-08 19:09:55,620 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 569 predicate places. [2024-11-08 19:09:55,620 INFO L471 AbstractCegarLoop]: Abstraction has has 614 places, 1069 transitions, 25353 flow [2024-11-08 19:09:55,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 19.7) internal successors, (197), 10 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:09:55,620 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:09:55,620 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:09:55,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-08 19:09:55,621 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-08 19:09:55,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:09:55,622 INFO L85 PathProgramCache]: Analyzing trace with hash -698063744, now seen corresponding path program 4 times [2024-11-08 19:09:55,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:09:55,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297994994] [2024-11-08 19:09:55,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:09:55,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:09:55,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:09:56,016 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 19:09:56,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:09:56,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297994994] [2024-11-08 19:09:56,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297994994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:09:56,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:09:56,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:09:56,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40757211] [2024-11-08 19:09:56,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:09:56,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:09:56,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:09:56,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:09:56,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:09:56,067 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 48 [2024-11-08 19:09:56,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 614 places, 1069 transitions, 25353 flow. Second operand has 11 states, 11 states have (on average 17.545454545454547) internal successors, (193), 11 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:09:56,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:09:56,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 48 [2024-11-08 19:09:56,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand