./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/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_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/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_7608e330-1d49-4d16-9abc-1f7ec4294e9c/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 c18dd13658bb5739ed2db8c4c80ae330682b7c3cebd2ad85657518c27ca325b9 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:39:56,105 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:39:56,213 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 18:39:56,218 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:39:56,219 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:39:56,257 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:39:56,258 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:39:56,258 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:39:56,259 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:39:56,260 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:39:56,261 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:39:56,262 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:39:56,263 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:39:56,266 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:39:56,270 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:39:56,271 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:39:56,271 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:39:56,272 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:39:56,272 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:39:56,272 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:39:56,273 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:39:56,274 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:39:56,276 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:39:56,277 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:39:56,278 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:39:56,278 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 18:39:56,279 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:39:56,279 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:39:56,281 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:39:56,281 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:39:56,282 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:39:56,282 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:39:56,284 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:39:56,284 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:39:56,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:39:56,286 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:39:56,286 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:39:56,287 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:39:56,287 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:39:56,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:39:56,288 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:39:56,288 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:39:56,289 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:39:56,290 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:39:56,290 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_7608e330-1d49-4d16-9abc-1f7ec4294e9c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c18dd13658bb5739ed2db8c4c80ae330682b7c3cebd2ad85657518c27ca325b9 [2024-11-08 18:39:56,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:39:56,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:39:56,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:39:56,670 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:39:56,670 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:39:56,672 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i Unable to find full path for "g++" [2024-11-08 18:39:59,062 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:39:59,478 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:39:59,480 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i [2024-11-08 18:39:59,511 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/data/ec7da3928/ba1c091d58a64c3bb8c375f635b529b2/FLAG16351d4cd [2024-11-08 18:39:59,540 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/data/ec7da3928/ba1c091d58a64c3bb8c375f635b529b2 [2024-11-08 18:39:59,543 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:39:59,545 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:39:59,548 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:39:59,548 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:39:59,556 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:39:59,557 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:39:59" (1/1) ... [2024-11-08 18:39:59,560 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76bb816f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:39:59, skipping insertion in model container [2024-11-08 18:39:59,560 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:39:59" (1/1) ... [2024-11-08 18:39:59,637 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:40:00,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:40:00,499 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:40:00,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:40:00,697 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:40:00,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:40:00 WrapperNode [2024-11-08 18:40:00,698 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:40:00,699 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:40:00,699 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:40:00,700 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:40:00,711 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:40:00" (1/1) ... [2024-11-08 18:40:00,739 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:40:00" (1/1) ... [2024-11-08 18:40:00,774 INFO L138 Inliner]: procedures = 265, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 132 [2024-11-08 18:40:00,774 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:40:00,775 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:40:00,776 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:40:00,776 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:40:00,792 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:40:00" (1/1) ... [2024-11-08 18:40:00,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:40:00" (1/1) ... [2024-11-08 18:40:00,799 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:40:00" (1/1) ... [2024-11-08 18:40:00,825 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 18:40:00,826 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:40:00" (1/1) ... [2024-11-08 18:40:00,829 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:40:00" (1/1) ... [2024-11-08 18:40:00,839 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:40:00" (1/1) ... [2024-11-08 18:40:00,844 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:40:00" (1/1) ... [2024-11-08 18:40:00,846 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:40:00" (1/1) ... [2024-11-08 18:40:00,848 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:40:00" (1/1) ... [2024-11-08 18:40:00,851 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:40:00,853 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:40:00,853 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:40:00,853 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:40:00,854 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:40:00" (1/1) ... [2024-11-08 18:40:00,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:40:00,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:40:00,938 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:40:00,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:40:00,985 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 18:40:00,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 18:40:00,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 18:40:00,986 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 18:40:00,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:40:00,986 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 18:40:00,986 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 18:40:00,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:40:00,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:40:00,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:40:00,989 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 18:40:01,155 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:40:01,158 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:40:01,619 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 18:40:01,619 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:40:02,195 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:40:02,195 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:40:02,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:40:02 BoogieIcfgContainer [2024-11-08 18:40:02,196 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:40:02,200 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:40:02,200 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:40:02,205 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:40:02,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:39:59" (1/3) ... [2024-11-08 18:40:02,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@de1c92a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:40:02, skipping insertion in model container [2024-11-08 18:40:02,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:40:00" (2/3) ... [2024-11-08 18:40:02,209 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@de1c92a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:40:02, skipping insertion in model container [2024-11-08 18:40:02,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:40:02" (3/3) ... [2024-11-08 18:40:02,211 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_07-tricky_address2.i [2024-11-08 18:40:02,235 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:40:02,236 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-08 18:40:02,236 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 18:40:02,292 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-08 18:40:02,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 30 transitions, 64 flow [2024-11-08 18:40:02,395 INFO L124 PetriNetUnfolderBase]: 2/29 cut-off events. [2024-11-08 18:40:02,396 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:40:02,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 29 events. 2/29 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 10. Up to 2 conditions per place. [2024-11-08 18:40:02,399 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 30 transitions, 64 flow [2024-11-08 18:40:02,404 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 29 transitions, 61 flow [2024-11-08 18:40:02,425 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:40:02,441 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;@505d6cc9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:40:02,442 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-08 18:40:02,451 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:40:02,451 INFO L124 PetriNetUnfolderBase]: 1/7 cut-off events. [2024-11-08 18:40:02,451 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:40:02,452 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:40:02,452 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-08 18:40:02,453 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:40:02,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:02,462 INFO L85 PathProgramCache]: Analyzing trace with hash 10667341, now seen corresponding path program 1 times [2024-11-08 18:40:02,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:02,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583231324] [2024-11-08 18:40:02,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:02,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:02,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:03,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:40:03,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:40:03,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583231324] [2024-11-08 18:40:03,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583231324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:03,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:40:03,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:40:03,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701646201] [2024-11-08 18:40:03,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:03,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:40:03,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:40:03,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:40:03,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:40:03,117 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-08 18:40:03,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 29 transitions, 61 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:03,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:40:03,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-08 18:40:03,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:40:03,316 INFO L124 PetriNetUnfolderBase]: 38/123 cut-off events. [2024-11-08 18:40:03,317 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:40:03,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 123 events. 38/123 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 403 event pairs, 36 based on Foata normal form. 2/114 useless extension candidates. Maximal degree in co-relation 192. Up to 94 conditions per place. [2024-11-08 18:40:03,322 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 20 selfloop transitions, 3 changer transitions 0/31 dead transitions. [2024-11-08 18:40:03,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 31 transitions, 111 flow [2024-11-08 18:40:03,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:40:03,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:40:03,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 63 transitions. [2024-11-08 18:40:03,339 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.525 [2024-11-08 18:40:03,342 INFO L175 Difference]: Start difference. First operand has 31 places, 29 transitions, 61 flow. Second operand 4 states and 63 transitions. [2024-11-08 18:40:03,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 31 transitions, 111 flow [2024-11-08 18:40:03,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 31 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:40:03,353 INFO L231 Difference]: Finished difference. Result has 35 places, 31 transitions, 86 flow [2024-11-08 18:40:03,355 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=86, PETRI_PLACES=35, PETRI_TRANSITIONS=31} [2024-11-08 18:40:03,363 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 4 predicate places. [2024-11-08 18:40:03,363 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 31 transitions, 86 flow [2024-11-08 18:40:03,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:03,364 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:40:03,364 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-08 18:40:03,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:40:03,366 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:40:03,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:03,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1131090559, now seen corresponding path program 1 times [2024-11-08 18:40:03,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:03,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844590265] [2024-11-08 18:40:03,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:03,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:03,589 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 18:40:03,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:40:03,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844590265] [2024-11-08 18:40:03,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844590265] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:40:03,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407321898] [2024-11-08 18:40:03,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:03,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:40:03,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:40:03,593 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:40:03,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:40:03,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:03,728 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:40:03,735 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:03,820 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 18:40:03,820 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:40:03,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407321898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:03,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:40:03,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-08 18:40:03,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611019462] [2024-11-08 18:40:03,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:03,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:40:03,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:40:03,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:40:03,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:40:03,855 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-08 18:40:03,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 31 transitions, 86 flow. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:03,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:40:03,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-08 18:40:03,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:40:04,036 INFO L124 PetriNetUnfolderBase]: 38/122 cut-off events. [2024-11-08 18:40:04,036 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 18:40:04,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 122 events. 38/122 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 399 event pairs, 36 based on Foata normal form. 1/112 useless extension candidates. Maximal degree in co-relation 215. Up to 87 conditions per place. [2024-11-08 18:40:04,038 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 16 selfloop transitions, 6 changer transitions 0/30 dead transitions. [2024-11-08 18:40:04,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 30 transitions, 126 flow [2024-11-08 18:40:04,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:40:04,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:40:04,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 77 transitions. [2024-11-08 18:40:04,041 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42777777777777776 [2024-11-08 18:40:04,041 INFO L175 Difference]: Start difference. First operand has 35 places, 31 transitions, 86 flow. Second operand 6 states and 77 transitions. [2024-11-08 18:40:04,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 30 transitions, 126 flow [2024-11-08 18:40:04,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 30 transitions, 124 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:40:04,044 INFO L231 Difference]: Finished difference. Result has 38 places, 30 transitions, 92 flow [2024-11-08 18:40:04,044 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=92, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2024-11-08 18:40:04,045 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 7 predicate places. [2024-11-08 18:40:04,045 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 30 transitions, 92 flow [2024-11-08 18:40:04,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:04,045 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:40:04,046 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-08 18:40:04,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:40:04,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-08 18:40:04,247 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:40:04,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:04,248 INFO L85 PathProgramCache]: Analyzing trace with hash -704068621, now seen corresponding path program 1 times [2024-11-08 18:40:04,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:04,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161964092] [2024-11-08 18:40:04,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:04,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:04,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:04,362 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 18:40:04,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:40:04,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161964092] [2024-11-08 18:40:04,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161964092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:04,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:40:04,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:40:04,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804053306] [2024-11-08 18:40:04,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:04,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:40:04,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:40:04,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:40:04,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:40:04,383 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-11-08 18:40:04,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 30 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:04,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:40:04,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-11-08 18:40:04,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:40:04,520 INFO L124 PetriNetUnfolderBase]: 37/120 cut-off events. [2024-11-08 18:40:04,522 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-08 18:40:04,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 234 conditions, 120 events. 37/120 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 395 event pairs, 36 based on Foata normal form. 2/113 useless extension candidates. Maximal degree in co-relation 209. Up to 90 conditions per place. [2024-11-08 18:40:04,524 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 16 selfloop transitions, 6 changer transitions 0/29 dead transitions. [2024-11-08 18:40:04,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 29 transitions, 130 flow [2024-11-08 18:40:04,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:40:04,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:40:04,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 54 transitions. [2024-11-08 18:40:04,529 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45 [2024-11-08 18:40:04,529 INFO L175 Difference]: Start difference. First operand has 38 places, 30 transitions, 92 flow. Second operand 4 states and 54 transitions. [2024-11-08 18:40:04,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 29 transitions, 130 flow [2024-11-08 18:40:04,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 29 transitions, 120 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-08 18:40:04,534 INFO L231 Difference]: Finished difference. Result has 37 places, 29 transitions, 94 flow [2024-11-08 18:40:04,535 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=94, PETRI_PLACES=37, PETRI_TRANSITIONS=29} [2024-11-08 18:40:04,536 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 6 predicate places. [2024-11-08 18:40:04,536 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 94 flow [2024-11-08 18:40:04,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:04,537 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:40:04,538 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:04,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:40:04,538 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:40:04,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:04,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1052497873, now seen corresponding path program 1 times [2024-11-08 18:40:04,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:04,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689679885] [2024-11-08 18:40:04,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:04,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:04,687 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 18:40:04,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:40:04,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689679885] [2024-11-08 18:40:04,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689679885] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:40:04,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212592881] [2024-11-08 18:40:04,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:04,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:40:04,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:40:04,691 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:40:04,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:40:04,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:04,825 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:40:04,826 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:04,866 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 18:40:04,866 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:40:04,925 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 18:40:04,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212592881] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:40:04,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:40:04,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-08 18:40:04,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056177373] [2024-11-08 18:40:04,927 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:40:04,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:40:04,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:40:04,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:40:04,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:40:04,976 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-11-08 18:40:04,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 94 flow. Second operand has 10 states, 10 states have (on average 9.9) internal successors, (99), 10 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:04,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:40:04,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-11-08 18:40:04,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:40:05,261 INFO L124 PetriNetUnfolderBase]: 37/125 cut-off events. [2024-11-08 18:40:05,261 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-11-08 18:40:05,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 255 conditions, 125 events. 37/125 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 390 event pairs, 36 based on Foata normal form. 2/118 useless extension candidates. Maximal degree in co-relation 201. Up to 89 conditions per place. [2024-11-08 18:40:05,263 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 19 selfloop transitions, 7 changer transitions 0/33 dead transitions. [2024-11-08 18:40:05,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 33 transitions, 171 flow [2024-11-08 18:40:05,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:40:05,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 18:40:05,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 84 transitions. [2024-11-08 18:40:05,270 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4 [2024-11-08 18:40:05,270 INFO L175 Difference]: Start difference. First operand has 37 places, 29 transitions, 94 flow. Second operand 7 states and 84 transitions. [2024-11-08 18:40:05,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 33 transitions, 171 flow [2024-11-08 18:40:05,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 33 transitions, 158 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:40:05,275 INFO L231 Difference]: Finished difference. Result has 44 places, 32 transitions, 132 flow [2024-11-08 18:40:05,276 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=132, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2024-11-08 18:40:05,277 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 13 predicate places. [2024-11-08 18:40:05,278 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 132 flow [2024-11-08 18:40:05,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 10 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:05,279 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:40:05,279 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:05,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 18:40:05,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:40:05,484 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:40:05,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:05,485 INFO L85 PathProgramCache]: Analyzing trace with hash 75499065, now seen corresponding path program 2 times [2024-11-08 18:40:05,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:05,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964672561] [2024-11-08 18:40:05,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:05,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:05,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:05,798 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 18:40:05,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:40:05,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964672561] [2024-11-08 18:40:05,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964672561] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:40:05,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020790488] [2024-11-08 18:40:05,800 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:40:05,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:40:05,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:40:05,803 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:40:05,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 18:40:05,926 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 18:40:05,927 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:40:05,929 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-08 18:40:05,931 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:07,319 INFO L349 Elim1Store]: treesize reduction 78, result has 3.7 percent of original size [2024-11-08 18:40:07,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 45 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 80 treesize of output 37 [2024-11-08 18:40:07,347 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 18:40:07,348 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:40:07,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020790488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:07,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:40:07,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 11 [2024-11-08 18:40:07,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270762590] [2024-11-08 18:40:07,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:07,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:40:07,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:40:07,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:40:07,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:40:07,362 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 30 [2024-11-08 18:40:07,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 132 flow. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:07,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:40:07,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 30 [2024-11-08 18:40:07,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:40:07,624 INFO L124 PetriNetUnfolderBase]: 50/143 cut-off events. [2024-11-08 18:40:07,624 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-11-08 18:40:07,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 143 events. 50/143 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 429 event pairs, 16 based on Foata normal form. 7/137 useless extension candidates. Maximal degree in co-relation 246. Up to 68 conditions per place. [2024-11-08 18:40:07,626 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 30 selfloop transitions, 7 changer transitions 3/49 dead transitions. [2024-11-08 18:40:07,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 49 transitions, 246 flow [2024-11-08 18:40:07,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:40:07,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:40:07,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 104 transitions. [2024-11-08 18:40:07,629 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5777777777777777 [2024-11-08 18:40:07,629 INFO L175 Difference]: Start difference. First operand has 44 places, 32 transitions, 132 flow. Second operand 6 states and 104 transitions. [2024-11-08 18:40:07,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 49 transitions, 246 flow [2024-11-08 18:40:07,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 49 transitions, 240 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-08 18:40:07,633 INFO L231 Difference]: Finished difference. Result has 51 places, 35 transitions, 166 flow [2024-11-08 18:40:07,633 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=166, PETRI_PLACES=51, PETRI_TRANSITIONS=35} [2024-11-08 18:40:07,634 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 20 predicate places. [2024-11-08 18:40:07,635 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 35 transitions, 166 flow [2024-11-08 18:40:07,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:07,635 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:40:07,635 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:07,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 18:40:07,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:40:07,840 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:40:07,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:07,840 INFO L85 PathProgramCache]: Analyzing trace with hash 76362274, now seen corresponding path program 1 times [2024-11-08 18:40:07,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:07,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633048806] [2024-11-08 18:40:07,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:07,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:07,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:08,109 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 18:40:08,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:40:08,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633048806] [2024-11-08 18:40:08,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633048806] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:40:08,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256161969] [2024-11-08 18:40:08,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:08,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:40:08,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:40:08,113 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:40:08,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 18:40:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:08,236 INFO L255 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 18:40:08,238 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:08,293 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 18:40:08,293 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:40:08,435 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 18:40:08,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256161969] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:40:08,436 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:40:08,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-08 18:40:08,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539168304] [2024-11-08 18:40:08,437 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:40:08,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 18:40:08,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:40:08,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 18:40:08,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-08 18:40:08,483 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-11-08 18:40:08,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 35 transitions, 166 flow. Second operand has 18 states, 18 states have (on average 9.722222222222221) internal successors, (175), 18 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:08,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:40:08,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-11-08 18:40:08,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:40:08,803 INFO L124 PetriNetUnfolderBase]: 27/131 cut-off events. [2024-11-08 18:40:08,803 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2024-11-08 18:40:08,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 355 conditions, 131 events. 27/131 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 374 event pairs, 26 based on Foata normal form. 4/129 useless extension candidates. Maximal degree in co-relation 318. Up to 73 conditions per place. [2024-11-08 18:40:08,806 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 25 selfloop transitions, 15 changer transitions 0/48 dead transitions. [2024-11-08 18:40:08,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 48 transitions, 356 flow [2024-11-08 18:40:08,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 18:40:08,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-08 18:40:08,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 162 transitions. [2024-11-08 18:40:08,810 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36 [2024-11-08 18:40:08,810 INFO L175 Difference]: Start difference. First operand has 51 places, 35 transitions, 166 flow. Second operand 15 states and 162 transitions. [2024-11-08 18:40:08,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 48 transitions, 356 flow [2024-11-08 18:40:08,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 48 transitions, 354 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:40:08,821 INFO L231 Difference]: Finished difference. Result has 69 places, 44 transitions, 298 flow [2024-11-08 18:40:08,821 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=298, PETRI_PLACES=69, PETRI_TRANSITIONS=44} [2024-11-08 18:40:08,823 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 38 predicate places. [2024-11-08 18:40:08,823 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 44 transitions, 298 flow [2024-11-08 18:40:08,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 9.722222222222221) internal successors, (175), 18 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:08,823 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:40:08,824 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:08,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 18:40:09,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:40:09,025 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:40:09,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:09,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1455085298, now seen corresponding path program 2 times [2024-11-08 18:40:09,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:09,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932807459] [2024-11-08 18:40:09,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:09,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:09,454 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 18:40:09,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:40:09,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932807459] [2024-11-08 18:40:09,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932807459] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:40:09,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723759058] [2024-11-08 18:40:09,455 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:40:09,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:40:09,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:40:09,458 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:40:09,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 18:40:09,588 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 18:40:09,589 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:40:09,591 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-08 18:40:09,593 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:11,587 INFO L349 Elim1Store]: treesize reduction 78, result has 3.7 percent of original size [2024-11-08 18:40:11,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 56 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 87 treesize of output 40 [2024-11-08 18:40:11,616 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 18:40:11,617 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:40:11,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723759058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:11,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:40:11,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [16] total 19 [2024-11-08 18:40:11,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628845745] [2024-11-08 18:40:11,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:11,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:40:11,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:40:11,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:40:11,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2024-11-08 18:40:11,634 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 30 [2024-11-08 18:40:11,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 44 transitions, 298 flow. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:11,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:40:11,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 30 [2024-11-08 18:40:11,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:40:11,917 INFO L124 PetriNetUnfolderBase]: 37/142 cut-off events. [2024-11-08 18:40:11,918 INFO L125 PetriNetUnfolderBase]: For 250/252 co-relation queries the response was YES. [2024-11-08 18:40:11,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 416 conditions, 142 events. 37/142 cut-off events. For 250/252 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 407 event pairs, 6 based on Foata normal form. 7/149 useless extension candidates. Maximal degree in co-relation 374. Up to 49 conditions per place. [2024-11-08 18:40:11,920 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 41 selfloop transitions, 9 changer transitions 0/61 dead transitions. [2024-11-08 18:40:11,920 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 61 transitions, 448 flow [2024-11-08 18:40:11,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:40:11,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:40:11,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 105 transitions. [2024-11-08 18:40:11,922 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2024-11-08 18:40:11,922 INFO L175 Difference]: Start difference. First operand has 69 places, 44 transitions, 298 flow. Second operand 6 states and 105 transitions. [2024-11-08 18:40:11,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 61 transitions, 448 flow [2024-11-08 18:40:11,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 61 transitions, 420 flow, removed 10 selfloop flow, removed 4 redundant places. [2024-11-08 18:40:11,929 INFO L231 Difference]: Finished difference. Result has 75 places, 49 transitions, 334 flow [2024-11-08 18:40:11,929 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=334, PETRI_PLACES=75, PETRI_TRANSITIONS=49} [2024-11-08 18:40:11,930 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 44 predicate places. [2024-11-08 18:40:11,930 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 49 transitions, 334 flow [2024-11-08 18:40:11,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:11,931 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:40:11,931 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:11,956 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 18:40:12,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:40:12,136 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:40:12,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:12,136 INFO L85 PathProgramCache]: Analyzing trace with hash 2131212135, now seen corresponding path program 1 times [2024-11-08 18:40:12,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:12,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716675121] [2024-11-08 18:40:12,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:12,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:12,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:12,552 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 18:40:12,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:40:12,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716675121] [2024-11-08 18:40:12,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716675121] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:40:12,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42415092] [2024-11-08 18:40:12,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:12,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:40:12,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:40:12,555 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:40:12,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 18:40:12,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:12,771 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 18:40:12,773 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:12,882 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 18:40:12,883 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:40:13,165 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 18:40:13,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42415092] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:40:13,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:40:13,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-08 18:40:13,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182900638] [2024-11-08 18:40:13,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:40:13,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-08 18:40:13,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:40:13,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-08 18:40:13,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-08 18:40:13,207 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-11-08 18:40:13,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 49 transitions, 334 flow. Second operand has 23 states, 23 states have (on average 9.73913043478261) internal successors, (224), 23 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:13,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:40:13,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-11-08 18:40:13,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:40:13,521 INFO L124 PetriNetUnfolderBase]: 26/147 cut-off events. [2024-11-08 18:40:13,521 INFO L125 PetriNetUnfolderBase]: For 360/362 co-relation queries the response was YES. [2024-11-08 18:40:13,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 147 events. 26/147 cut-off events. For 360/362 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 408 event pairs, 22 based on Foata normal form. 3/150 useless extension candidates. Maximal degree in co-relation 453. Up to 75 conditions per place. [2024-11-08 18:40:13,524 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 32 selfloop transitions, 21 changer transitions 0/62 dead transitions. [2024-11-08 18:40:13,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 62 transitions, 572 flow [2024-11-08 18:40:13,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-08 18:40:13,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-08 18:40:13,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 218 transitions. [2024-11-08 18:40:13,529 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.346031746031746 [2024-11-08 18:40:13,529 INFO L175 Difference]: Start difference. First operand has 75 places, 49 transitions, 334 flow. Second operand 21 states and 218 transitions. [2024-11-08 18:40:13,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 62 transitions, 572 flow [2024-11-08 18:40:13,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 62 transitions, 572 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:40:13,535 INFO L231 Difference]: Finished difference. Result has 99 places, 56 transitions, 468 flow [2024-11-08 18:40:13,536 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=468, PETRI_PLACES=99, PETRI_TRANSITIONS=56} [2024-11-08 18:40:13,536 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 68 predicate places. [2024-11-08 18:40:13,537 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 56 transitions, 468 flow [2024-11-08 18:40:13,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.73913043478261) internal successors, (224), 23 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:13,537 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:40:13,537 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:13,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-08 18:40:13,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-08 18:40:13,742 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:40:13,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:13,742 INFO L85 PathProgramCache]: Analyzing trace with hash -131682229, now seen corresponding path program 2 times [2024-11-08 18:40:13,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:13,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410991879] [2024-11-08 18:40:13,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:13,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:13,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:15,582 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 18:40:15,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:40:15,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410991879] [2024-11-08 18:40:15,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410991879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:15,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:40:15,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:40:15,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635278387] [2024-11-08 18:40:15,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:15,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:40:15,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:40:15,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:40:15,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:40:15,604 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 30 [2024-11-08 18:40:15,604 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 56 transitions, 468 flow. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:15,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:40:15,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 30 [2024-11-08 18:40:15,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:40:15,947 INFO L124 PetriNetUnfolderBase]: 30/147 cut-off events. [2024-11-08 18:40:15,947 INFO L125 PetriNetUnfolderBase]: For 489/491 co-relation queries the response was YES. [2024-11-08 18:40:15,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 147 events. 30/147 cut-off events. For 489/491 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 376 event pairs, 14 based on Foata normal form. 9/156 useless extension candidates. Maximal degree in co-relation 480. Up to 54 conditions per place. [2024-11-08 18:40:15,949 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 41 selfloop transitions, 7 changer transitions 3/63 dead transitions. [2024-11-08 18:40:15,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 63 transitions, 590 flow [2024-11-08 18:40:15,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:40:15,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:40:15,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 99 transitions. [2024-11-08 18:40:15,952 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.55 [2024-11-08 18:40:15,953 INFO L175 Difference]: Start difference. First operand has 99 places, 56 transitions, 468 flow. Second operand 6 states and 99 transitions. [2024-11-08 18:40:15,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 63 transitions, 590 flow [2024-11-08 18:40:15,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 63 transitions, 558 flow, removed 1 selfloop flow, removed 13 redundant places. [2024-11-08 18:40:15,960 INFO L231 Difference]: Finished difference. Result has 91 places, 54 transitions, 436 flow [2024-11-08 18:40:15,960 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=436, PETRI_PLACES=91, PETRI_TRANSITIONS=54} [2024-11-08 18:40:15,963 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 60 predicate places. [2024-11-08 18:40:15,964 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 54 transitions, 436 flow [2024-11-08 18:40:15,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:15,964 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:40:15,964 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:15,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 18:40:15,965 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:40:15,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:15,965 INFO L85 PathProgramCache]: Analyzing trace with hash -104922726, now seen corresponding path program 1 times [2024-11-08 18:40:15,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:15,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11396751] [2024-11-08 18:40:15,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:15,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:16,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:17,483 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 18:40:17,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:40:17,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11396751] [2024-11-08 18:40:17,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11396751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:17,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:40:17,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:40:17,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140732191] [2024-11-08 18:40:17,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:17,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:40:17,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:40:17,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:40:17,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:40:17,511 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 30 [2024-11-08 18:40:17,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 54 transitions, 436 flow. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:17,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:40:17,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 30 [2024-11-08 18:40:17,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:40:17,858 INFO L124 PetriNetUnfolderBase]: 30/139 cut-off events. [2024-11-08 18:40:17,858 INFO L125 PetriNetUnfolderBase]: For 431/433 co-relation queries the response was YES. [2024-11-08 18:40:17,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 512 conditions, 139 events. 30/139 cut-off events. For 431/433 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 319 event pairs, 8 based on Foata normal form. 9/148 useless extension candidates. Maximal degree in co-relation 471. Up to 51 conditions per place. [2024-11-08 18:40:17,860 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 43 selfloop transitions, 6 changer transitions 4/64 dead transitions. [2024-11-08 18:40:17,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 64 transitions, 572 flow [2024-11-08 18:40:17,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:40:17,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:40:17,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 103 transitions. [2024-11-08 18:40:17,862 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5722222222222222 [2024-11-08 18:40:17,862 INFO L175 Difference]: Start difference. First operand has 91 places, 54 transitions, 436 flow. Second operand 6 states and 103 transitions. [2024-11-08 18:40:17,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 64 transitions, 572 flow [2024-11-08 18:40:17,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 64 transitions, 546 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-11-08 18:40:17,868 INFO L231 Difference]: Finished difference. Result has 89 places, 52 transitions, 413 flow [2024-11-08 18:40:17,868 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=413, PETRI_PLACES=89, PETRI_TRANSITIONS=52} [2024-11-08 18:40:17,869 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 58 predicate places. [2024-11-08 18:40:17,869 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 52 transitions, 413 flow [2024-11-08 18:40:17,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:17,869 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:40:17,869 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:17,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 18:40:17,870 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:40:17,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:17,906 INFO L85 PathProgramCache]: Analyzing trace with hash 722711404, now seen corresponding path program 1 times [2024-11-08 18:40:17,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:17,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112916148] [2024-11-08 18:40:17,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:17,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:18,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:22,356 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 18:40:22,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:40:22,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112916148] [2024-11-08 18:40:22,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112916148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:22,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:40:22,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:40:22,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716847476] [2024-11-08 18:40:22,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:22,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:40:22,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:40:22,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:40:22,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:40:22,495 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 30 [2024-11-08 18:40:22,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 52 transitions, 413 flow. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:22,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:40:22,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 30 [2024-11-08 18:40:22,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:40:24,554 INFO L124 PetriNetUnfolderBase]: 51/177 cut-off events. [2024-11-08 18:40:24,555 INFO L125 PetriNetUnfolderBase]: For 404/404 co-relation queries the response was YES. [2024-11-08 18:40:24,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 622 conditions, 177 events. 51/177 cut-off events. For 404/404 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 465 event pairs, 12 based on Foata normal form. 3/180 useless extension candidates. Maximal degree in co-relation 555. Up to 62 conditions per place. [2024-11-08 18:40:24,557 INFO L140 encePairwiseOnDemand]: 20/30 looper letters, 55 selfloop transitions, 20 changer transitions 6/88 dead transitions. [2024-11-08 18:40:24,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 88 transitions, 714 flow [2024-11-08 18:40:24,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 18:40:24,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-08 18:40:24,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 183 transitions. [2024-11-08 18:40:24,560 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3588235294117647 [2024-11-08 18:40:24,560 INFO L175 Difference]: Start difference. First operand has 89 places, 52 transitions, 413 flow. Second operand 17 states and 183 transitions. [2024-11-08 18:40:24,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 88 transitions, 714 flow [2024-11-08 18:40:24,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 88 transitions, 682 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-08 18:40:24,569 INFO L231 Difference]: Finished difference. Result has 103 places, 66 transitions, 523 flow [2024-11-08 18:40:24,569 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=523, PETRI_PLACES=103, PETRI_TRANSITIONS=66} [2024-11-08 18:40:24,570 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 72 predicate places. [2024-11-08 18:40:24,570 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 66 transitions, 523 flow [2024-11-08 18:40:24,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:24,571 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:40:24,571 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:24,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 18:40:24,571 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:40:24,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:24,573 INFO L85 PathProgramCache]: Analyzing trace with hash 205759182, now seen corresponding path program 2 times [2024-11-08 18:40:24,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:24,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000689557] [2024-11-08 18:40:24,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:24,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:24,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:27,792 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 18:40:27,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:40:27,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000689557] [2024-11-08 18:40:27,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000689557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:27,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:40:27,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:40:27,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038579359] [2024-11-08 18:40:27,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:27,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:40:27,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:40:27,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:40:27,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:40:27,869 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-11-08 18:40:27,869 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 66 transitions, 523 flow. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:27,870 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:40:27,870 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-11-08 18:40:27,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:40:28,906 INFO L124 PetriNetUnfolderBase]: 49/192 cut-off events. [2024-11-08 18:40:28,906 INFO L125 PetriNetUnfolderBase]: For 446/446 co-relation queries the response was YES. [2024-11-08 18:40:28,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 715 conditions, 192 events. 49/192 cut-off events. For 446/446 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 605 event pairs, 16 based on Foata normal form. 3/195 useless extension candidates. Maximal degree in co-relation 634. Up to 70 conditions per place. [2024-11-08 18:40:28,911 INFO L140 encePairwiseOnDemand]: 21/30 looper letters, 58 selfloop transitions, 17 changer transitions 2/86 dead transitions. [2024-11-08 18:40:28,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 86 transitions, 756 flow [2024-11-08 18:40:28,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 18:40:28,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-08 18:40:28,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 140 transitions. [2024-11-08 18:40:28,915 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42424242424242425 [2024-11-08 18:40:28,915 INFO L175 Difference]: Start difference. First operand has 103 places, 66 transitions, 523 flow. Second operand 11 states and 140 transitions. [2024-11-08 18:40:28,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 86 transitions, 756 flow [2024-11-08 18:40:28,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 86 transitions, 726 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-08 18:40:28,924 INFO L231 Difference]: Finished difference. Result has 113 places, 71 transitions, 599 flow [2024-11-08 18:40:28,925 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=599, PETRI_PLACES=113, PETRI_TRANSITIONS=71} [2024-11-08 18:40:28,928 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 82 predicate places. [2024-11-08 18:40:28,929 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 71 transitions, 599 flow [2024-11-08 18:40:28,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:28,930 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:40:28,930 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:28,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 18:40:28,931 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:40:28,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:28,932 INFO L85 PathProgramCache]: Analyzing trace with hash 212663736, now seen corresponding path program 1 times [2024-11-08 18:40:28,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:28,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120990368] [2024-11-08 18:40:28,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:28,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:29,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:31,767 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 18:40:31,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:40:31,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120990368] [2024-11-08 18:40:31,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120990368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:31,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:40:31,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:40:31,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087643094] [2024-11-08 18:40:31,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:31,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:40:31,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:40:31,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:40:31,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:40:31,791 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 30 [2024-11-08 18:40:31,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 71 transitions, 599 flow. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:31,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:40:31,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 30 [2024-11-08 18:40:31,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:40:32,422 INFO L124 PetriNetUnfolderBase]: 54/192 cut-off events. [2024-11-08 18:40:32,422 INFO L125 PetriNetUnfolderBase]: For 507/507 co-relation queries the response was YES. [2024-11-08 18:40:32,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 782 conditions, 192 events. 54/192 cut-off events. For 507/507 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 587 event pairs, 16 based on Foata normal form. 3/195 useless extension candidates. Maximal degree in co-relation 682. Up to 64 conditions per place. [2024-11-08 18:40:32,425 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 68 selfloop transitions, 14 changer transitions 2/91 dead transitions. [2024-11-08 18:40:32,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 91 transitions, 872 flow [2024-11-08 18:40:32,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:40:32,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 18:40:32,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 108 transitions. [2024-11-08 18:40:32,428 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4 [2024-11-08 18:40:32,428 INFO L175 Difference]: Start difference. First operand has 113 places, 71 transitions, 599 flow. Second operand 9 states and 108 transitions. [2024-11-08 18:40:32,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 91 transitions, 872 flow [2024-11-08 18:40:32,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 91 transitions, 846 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-11-08 18:40:32,437 INFO L231 Difference]: Finished difference. Result has 118 places, 71 transitions, 622 flow [2024-11-08 18:40:32,438 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=575, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=622, PETRI_PLACES=118, PETRI_TRANSITIONS=71} [2024-11-08 18:40:32,439 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 87 predicate places. [2024-11-08 18:40:32,439 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 71 transitions, 622 flow [2024-11-08 18:40:32,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:32,439 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:40:32,440 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:32,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 18:40:32,440 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:40:32,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:32,441 INFO L85 PathProgramCache]: Analyzing trace with hash 722163634, now seen corresponding path program 3 times [2024-11-08 18:40:32,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:32,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507569979] [2024-11-08 18:40:32,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:32,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:35,964 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 18:40:35,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:40:35,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507569979] [2024-11-08 18:40:35,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507569979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:35,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:40:35,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:40:35,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328357233] [2024-11-08 18:40:35,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:35,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:40:35,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:40:35,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:40:35,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:40:36,034 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 30 [2024-11-08 18:40:36,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 71 transitions, 622 flow. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:36,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:40:36,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 30 [2024-11-08 18:40:36,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:40:37,503 INFO L124 PetriNetUnfolderBase]: 60/210 cut-off events. [2024-11-08 18:40:37,503 INFO L125 PetriNetUnfolderBase]: For 554/554 co-relation queries the response was YES. [2024-11-08 18:40:37,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 886 conditions, 210 events. 60/210 cut-off events. For 554/554 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 673 event pairs, 12 based on Foata normal form. 3/213 useless extension candidates. Maximal degree in co-relation 780. Up to 77 conditions per place. [2024-11-08 18:40:37,506 INFO L140 encePairwiseOnDemand]: 19/30 looper letters, 60 selfloop transitions, 26 changer transitions 0/93 dead transitions. [2024-11-08 18:40:37,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 93 transitions, 886 flow [2024-11-08 18:40:37,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 18:40:37,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-08 18:40:37,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 174 transitions. [2024-11-08 18:40:37,508 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3625 [2024-11-08 18:40:37,508 INFO L175 Difference]: Start difference. First operand has 118 places, 71 transitions, 622 flow. Second operand 16 states and 174 transitions. [2024-11-08 18:40:37,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 93 transitions, 886 flow [2024-11-08 18:40:37,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 93 transitions, 856 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-11-08 18:40:37,519 INFO L231 Difference]: Finished difference. Result has 132 places, 77 transitions, 709 flow [2024-11-08 18:40:37,520 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=597, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=709, PETRI_PLACES=132, PETRI_TRANSITIONS=77} [2024-11-08 18:40:37,521 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 101 predicate places. [2024-11-08 18:40:37,521 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 77 transitions, 709 flow [2024-11-08 18:40:37,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:37,521 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:40:37,522 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:37,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 18:40:37,522 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:40:37,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:37,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1009598734, now seen corresponding path program 4 times [2024-11-08 18:40:37,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:37,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902804700] [2024-11-08 18:40:37,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:37,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:41,264 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 18:40:41,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:40:41,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902804700] [2024-11-08 18:40:41,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902804700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:41,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:40:41,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:40:41,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368183742] [2024-11-08 18:40:41,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:41,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:40:41,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:40:41,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:40:41,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:40:41,336 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 30 [2024-11-08 18:40:41,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 77 transitions, 709 flow. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:41,337 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:40:41,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 30 [2024-11-08 18:40:41,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:40:43,122 INFO L124 PetriNetUnfolderBase]: 74/258 cut-off events. [2024-11-08 18:40:43,125 INFO L125 PetriNetUnfolderBase]: For 883/883 co-relation queries the response was YES. [2024-11-08 18:40:43,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1209 conditions, 258 events. 74/258 cut-off events. For 883/883 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1002 event pairs, 16 based on Foata normal form. 3/261 useless extension candidates. Maximal degree in co-relation 1081. Up to 91 conditions per place. [2024-11-08 18:40:43,129 INFO L140 encePairwiseOnDemand]: 20/30 looper letters, 68 selfloop transitions, 33 changer transitions 0/108 dead transitions. [2024-11-08 18:40:43,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 108 transitions, 1162 flow [2024-11-08 18:40:43,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 18:40:43,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-08 18:40:43,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 168 transitions. [2024-11-08 18:40:43,131 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.37333333333333335 [2024-11-08 18:40:43,131 INFO L175 Difference]: Start difference. First operand has 132 places, 77 transitions, 709 flow. Second operand 15 states and 168 transitions. [2024-11-08 18:40:43,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 108 transitions, 1162 flow [2024-11-08 18:40:43,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 108 transitions, 1080 flow, removed 8 selfloop flow, removed 11 redundant places. [2024-11-08 18:40:43,146 INFO L231 Difference]: Finished difference. Result has 140 places, 90 transitions, 908 flow [2024-11-08 18:40:43,147 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=652, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=908, PETRI_PLACES=140, PETRI_TRANSITIONS=90} [2024-11-08 18:40:43,147 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 109 predicate places. [2024-11-08 18:40:43,147 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 90 transitions, 908 flow [2024-11-08 18:40:43,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:43,148 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:40:43,148 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:43,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 18:40:43,149 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:40:43,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:43,149 INFO L85 PathProgramCache]: Analyzing trace with hash 999767704, now seen corresponding path program 5 times [2024-11-08 18:40:43,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:43,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759420560] [2024-11-08 18:40:43,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:43,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:43,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:46,618 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 18:40:46,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:40:46,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759420560] [2024-11-08 18:40:46,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759420560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:46,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:40:46,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:40:46,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095019157] [2024-11-08 18:40:46,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:46,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:40:46,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:40:46,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:40:46,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:40:46,658 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 30 [2024-11-08 18:40:46,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 90 transitions, 908 flow. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:46,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:40:46,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 30 [2024-11-08 18:40:46,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:40:48,380 INFO L124 PetriNetUnfolderBase]: 84/292 cut-off events. [2024-11-08 18:40:48,380 INFO L125 PetriNetUnfolderBase]: For 1158/1158 co-relation queries the response was YES. [2024-11-08 18:40:48,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1434 conditions, 292 events. 84/292 cut-off events. For 1158/1158 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1249 event pairs, 23 based on Foata normal form. 3/295 useless extension candidates. Maximal degree in co-relation 1300. Up to 105 conditions per place. [2024-11-08 18:40:48,385 INFO L140 encePairwiseOnDemand]: 20/30 looper letters, 69 selfloop transitions, 35 changer transitions 0/111 dead transitions. [2024-11-08 18:40:48,385 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 111 transitions, 1243 flow [2024-11-08 18:40:48,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 18:40:48,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-08 18:40:48,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 167 transitions. [2024-11-08 18:40:48,388 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3711111111111111 [2024-11-08 18:40:48,388 INFO L175 Difference]: Start difference. First operand has 140 places, 90 transitions, 908 flow. Second operand 15 states and 167 transitions. [2024-11-08 18:40:48,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 111 transitions, 1243 flow [2024-11-08 18:40:48,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 111 transitions, 1209 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-11-08 18:40:48,405 INFO L231 Difference]: Finished difference. Result has 154 places, 95 transitions, 1051 flow [2024-11-08 18:40:48,405 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=880, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1051, PETRI_PLACES=154, PETRI_TRANSITIONS=95} [2024-11-08 18:40:48,406 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 123 predicate places. [2024-11-08 18:40:48,406 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 95 transitions, 1051 flow [2024-11-08 18:40:48,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:48,407 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:40:48,407 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:48,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 18:40:48,407 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:40:48,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:48,408 INFO L85 PathProgramCache]: Analyzing trace with hash 999219934, now seen corresponding path program 6 times [2024-11-08 18:40:48,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:48,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300660898] [2024-11-08 18:40:48,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:48,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:51,930 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 18:40:51,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:40:51,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300660898] [2024-11-08 18:40:51,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300660898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:51,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:40:51,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:40:51,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977126319] [2024-11-08 18:40:51,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:51,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:40:51,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:40:51,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:40:51,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:40:51,964 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 30 [2024-11-08 18:40:51,964 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 95 transitions, 1051 flow. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:51,964 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:40:51,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 30 [2024-11-08 18:40:51,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:40:53,825 INFO L124 PetriNetUnfolderBase]: 96/330 cut-off events. [2024-11-08 18:40:53,825 INFO L125 PetriNetUnfolderBase]: For 1598/1598 co-relation queries the response was YES. [2024-11-08 18:40:53,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1716 conditions, 330 events. 96/330 cut-off events. For 1598/1598 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1545 event pairs, 16 based on Foata normal form. 3/333 useless extension candidates. Maximal degree in co-relation 1568. Up to 113 conditions per place. [2024-11-08 18:40:53,831 INFO L140 encePairwiseOnDemand]: 19/30 looper letters, 78 selfloop transitions, 40 changer transitions 0/125 dead transitions. [2024-11-08 18:40:53,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 125 transitions, 1501 flow [2024-11-08 18:40:53,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 18:40:53,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-08 18:40:53,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 179 transitions. [2024-11-08 18:40:53,833 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3729166666666667 [2024-11-08 18:40:53,834 INFO L175 Difference]: Start difference. First operand has 154 places, 95 transitions, 1051 flow. Second operand 16 states and 179 transitions. [2024-11-08 18:40:53,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 125 transitions, 1501 flow [2024-11-08 18:40:53,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 125 transitions, 1446 flow, removed 11 selfloop flow, removed 8 redundant places. [2024-11-08 18:40:53,855 INFO L231 Difference]: Finished difference. Result has 166 places, 103 transitions, 1215 flow [2024-11-08 18:40:53,855 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=1006, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1215, PETRI_PLACES=166, PETRI_TRANSITIONS=103} [2024-11-08 18:40:53,856 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 135 predicate places. [2024-11-08 18:40:53,856 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 103 transitions, 1215 flow [2024-11-08 18:40:53,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:53,857 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:40:53,857 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:53,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 18:40:53,857 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:40:53,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:53,858 INFO L85 PathProgramCache]: Analyzing trace with hash 706076494, now seen corresponding path program 7 times [2024-11-08 18:40:53,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:53,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647541293] [2024-11-08 18:40:53,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:53,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:53,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:56,343 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 18:40:56,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:40:56,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647541293] [2024-11-08 18:40:56,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647541293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:56,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:40:56,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:40:56,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505687529] [2024-11-08 18:40:56,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:56,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:40:56,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:40:56,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:40:56,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:40:56,368 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 30 [2024-11-08 18:40:56,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 103 transitions, 1215 flow. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:56,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:40:56,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 30 [2024-11-08 18:40:56,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:40:57,774 INFO L124 PetriNetUnfolderBase]: 97/338 cut-off events. [2024-11-08 18:40:57,775 INFO L125 PetriNetUnfolderBase]: For 2226/2226 co-relation queries the response was YES. [2024-11-08 18:40:57,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1940 conditions, 338 events. 97/338 cut-off events. For 2226/2226 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1638 event pairs, 10 based on Foata normal form. 3/341 useless extension candidates. Maximal degree in co-relation 1791. Up to 108 conditions per place. [2024-11-08 18:40:57,782 INFO L140 encePairwiseOnDemand]: 19/30 looper letters, 79 selfloop transitions, 54 changer transitions 0/140 dead transitions. [2024-11-08 18:40:57,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 140 transitions, 1818 flow [2024-11-08 18:40:57,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-08 18:40:57,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-08 18:40:57,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 191 transitions. [2024-11-08 18:40:57,785 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3537037037037037 [2024-11-08 18:40:57,785 INFO L175 Difference]: Start difference. First operand has 166 places, 103 transitions, 1215 flow. Second operand 18 states and 191 transitions. [2024-11-08 18:40:57,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 140 transitions, 1818 flow [2024-11-08 18:40:57,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 140 transitions, 1738 flow, removed 20 selfloop flow, removed 9 redundant places. [2024-11-08 18:40:57,812 INFO L231 Difference]: Finished difference. Result has 179 places, 115 transitions, 1462 flow [2024-11-08 18:40:57,813 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=1149, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1462, PETRI_PLACES=179, PETRI_TRANSITIONS=115} [2024-11-08 18:40:57,813 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 148 predicate places. [2024-11-08 18:40:57,813 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 115 transitions, 1462 flow [2024-11-08 18:40:57,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:57,814 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:40:57,814 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 18:40:57,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 18:40:57,814 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:40:57,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:57,815 INFO L85 PathProgramCache]: Analyzing trace with hash 2083567706, now seen corresponding path program 1 times [2024-11-08 18:40:57,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:57,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141508479] [2024-11-08 18:40:57,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:57,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:00,922 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 18:41:00,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:00,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141508479] [2024-11-08 18:41:00,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141508479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:00,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:00,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:41:00,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148418237] [2024-11-08 18:41:00,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:00,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:41:00,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:00,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:41:00,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:41:00,994 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-08 18:41:00,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 115 transitions, 1462 flow. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:41:00,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:41:00,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-08 18:41:00,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:41:01,737 INFO L124 PetriNetUnfolderBase]: 72/301 cut-off events. [2024-11-08 18:41:01,737 INFO L125 PetriNetUnfolderBase]: For 2603/2603 co-relation queries the response was YES. [2024-11-08 18:41:01,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1893 conditions, 301 events. 72/301 cut-off events. For 2603/2603 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1473 event pairs, 25 based on Foata normal form. 12/313 useless extension candidates. Maximal degree in co-relation 1769. Up to 131 conditions per place. [2024-11-08 18:41:01,740 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 65 selfloop transitions, 17 changer transitions 26/132 dead transitions. [2024-11-08 18:41:01,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 132 transitions, 1801 flow [2024-11-08 18:41:01,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:41:01,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 18:41:01,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 123 transitions. [2024-11-08 18:41:01,742 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45555555555555555 [2024-11-08 18:41:01,742 INFO L175 Difference]: Start difference. First operand has 179 places, 115 transitions, 1462 flow. Second operand 9 states and 123 transitions. [2024-11-08 18:41:01,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 132 transitions, 1801 flow [2024-11-08 18:41:01,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 132 transitions, 1609 flow, removed 41 selfloop flow, removed 12 redundant places. [2024-11-08 18:41:01,766 INFO L231 Difference]: Finished difference. Result has 175 places, 101 transitions, 1129 flow [2024-11-08 18:41:01,767 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=1282, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1129, PETRI_PLACES=175, PETRI_TRANSITIONS=101} [2024-11-08 18:41:01,767 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 144 predicate places. [2024-11-08 18:41:01,768 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 101 transitions, 1129 flow [2024-11-08 18:41:01,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:41:01,768 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:41:01,768 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 18:41:01,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 18:41:01,769 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:41:01,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:01,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1997358440, now seen corresponding path program 1 times [2024-11-08 18:41:01,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:01,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470206766] [2024-11-08 18:41:01,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:01,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:01,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:05,970 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 18:41:05,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:05,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470206766] [2024-11-08 18:41:05,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470206766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:05,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:05,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:41:05,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140641437] [2024-11-08 18:41:05,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:05,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:41:05,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:05,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:41:05,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:41:06,081 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-08 18:41:06,082 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 101 transitions, 1129 flow. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:41:06,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:41:06,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-08 18:41:06,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:41:07,447 INFO L124 PetriNetUnfolderBase]: 55/243 cut-off events. [2024-11-08 18:41:07,447 INFO L125 PetriNetUnfolderBase]: For 1447/1447 co-relation queries the response was YES. [2024-11-08 18:41:07,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1314 conditions, 243 events. 55/243 cut-off events. For 1447/1447 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1053 event pairs, 25 based on Foata normal form. 3/246 useless extension candidates. Maximal degree in co-relation 1233. Up to 134 conditions per place. [2024-11-08 18:41:07,453 INFO L140 encePairwiseOnDemand]: 20/30 looper letters, 58 selfloop transitions, 23 changer transitions 11/116 dead transitions. [2024-11-08 18:41:07,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 116 transitions, 1416 flow [2024-11-08 18:41:07,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:41:07,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-08 18:41:07,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 172 transitions. [2024-11-08 18:41:07,455 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4095238095238095 [2024-11-08 18:41:07,455 INFO L175 Difference]: Start difference. First operand has 175 places, 101 transitions, 1129 flow. Second operand 14 states and 172 transitions. [2024-11-08 18:41:07,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 116 transitions, 1416 flow [2024-11-08 18:41:07,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 116 transitions, 1343 flow, removed 8 selfloop flow, removed 9 redundant places. [2024-11-08 18:41:07,476 INFO L231 Difference]: Finished difference. Result has 176 places, 102 transitions, 1147 flow [2024-11-08 18:41:07,476 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=1067, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1147, PETRI_PLACES=176, PETRI_TRANSITIONS=102} [2024-11-08 18:41:07,477 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 145 predicate places. [2024-11-08 18:41:07,477 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 102 transitions, 1147 flow [2024-11-08 18:41:07,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:41:07,478 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:41:07,478 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 18:41:07,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 18:41:07,478 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:41:07,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:07,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1142051786, now seen corresponding path program 2 times [2024-11-08 18:41:07,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:07,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731691958] [2024-11-08 18:41:07,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:07,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:07,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:12,096 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 18:41:12,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:12,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731691958] [2024-11-08 18:41:12,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731691958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:12,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:12,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:41:12,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196093496] [2024-11-08 18:41:12,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:12,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:41:12,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:12,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:41:12,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:41:12,218 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-08 18:41:12,219 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 102 transitions, 1147 flow. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:41:12,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:41:12,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-08 18:41:12,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:41:14,046 INFO L124 PetriNetUnfolderBase]: 53/237 cut-off events. [2024-11-08 18:41:14,047 INFO L125 PetriNetUnfolderBase]: For 1264/1264 co-relation queries the response was YES. [2024-11-08 18:41:14,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1283 conditions, 237 events. 53/237 cut-off events. For 1264/1264 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1011 event pairs, 27 based on Foata normal form. 3/240 useless extension candidates. Maximal degree in co-relation 1212. Up to 133 conditions per place. [2024-11-08 18:41:14,051 INFO L140 encePairwiseOnDemand]: 20/30 looper letters, 57 selfloop transitions, 23 changer transitions 8/112 dead transitions. [2024-11-08 18:41:14,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 112 transitions, 1354 flow [2024-11-08 18:41:14,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 18:41:14,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-08 18:41:14,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 178 transitions. [2024-11-08 18:41:14,053 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39555555555555555 [2024-11-08 18:41:14,054 INFO L175 Difference]: Start difference. First operand has 176 places, 102 transitions, 1147 flow. Second operand 15 states and 178 transitions. [2024-11-08 18:41:14,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 112 transitions, 1354 flow [2024-11-08 18:41:14,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 112 transitions, 1277 flow, removed 11 selfloop flow, removed 11 redundant places. [2024-11-08 18:41:14,074 INFO L231 Difference]: Finished difference. Result has 177 places, 100 transitions, 1100 flow [2024-11-08 18:41:14,074 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=1075, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1100, PETRI_PLACES=177, PETRI_TRANSITIONS=100} [2024-11-08 18:41:14,075 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 146 predicate places. [2024-11-08 18:41:14,075 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 100 transitions, 1100 flow [2024-11-08 18:41:14,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:41:14,076 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:41:14,076 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 18:41:14,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 18:41:14,077 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:41:14,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:14,077 INFO L85 PathProgramCache]: Analyzing trace with hash -196485446, now seen corresponding path program 3 times [2024-11-08 18:41:14,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:14,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776093631] [2024-11-08 18:41:14,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:14,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:14,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:18,127 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 18:41:18,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:18,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776093631] [2024-11-08 18:41:18,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776093631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:18,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:18,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:41:18,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323088479] [2024-11-08 18:41:18,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:18,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:41:18,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:18,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:41:18,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:41:18,208 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-08 18:41:18,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 100 transitions, 1100 flow. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:41:18,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:41:18,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-08 18:41:18,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:41:19,482 INFO L124 PetriNetUnfolderBase]: 52/234 cut-off events. [2024-11-08 18:41:19,482 INFO L125 PetriNetUnfolderBase]: For 1214/1214 co-relation queries the response was YES. [2024-11-08 18:41:19,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1240 conditions, 234 events. 52/234 cut-off events. For 1214/1214 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 993 event pairs, 24 based on Foata normal form. 3/237 useless extension candidates. Maximal degree in co-relation 1172. Up to 126 conditions per place. [2024-11-08 18:41:19,486 INFO L140 encePairwiseOnDemand]: 19/30 looper letters, 59 selfloop transitions, 24 changer transitions 6/113 dead transitions. [2024-11-08 18:41:19,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 113 transitions, 1318 flow [2024-11-08 18:41:19,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:41:19,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-08 18:41:19,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 170 transitions. [2024-11-08 18:41:19,488 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40476190476190477 [2024-11-08 18:41:19,489 INFO L175 Difference]: Start difference. First operand has 177 places, 100 transitions, 1100 flow. Second operand 14 states and 170 transitions. [2024-11-08 18:41:19,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 113 transitions, 1318 flow [2024-11-08 18:41:19,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 113 transitions, 1262 flow, removed 5 selfloop flow, removed 12 redundant places. [2024-11-08 18:41:19,507 INFO L231 Difference]: Finished difference. Result has 176 places, 100 transitions, 1107 flow [2024-11-08 18:41:19,507 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=1050, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1107, PETRI_PLACES=176, PETRI_TRANSITIONS=100} [2024-11-08 18:41:19,508 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 145 predicate places. [2024-11-08 18:41:19,508 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 100 transitions, 1107 flow [2024-11-08 18:41:19,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:41:19,509 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:41:19,509 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 18:41:19,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 18:41:19,510 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:41:19,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:19,510 INFO L85 PathProgramCache]: Analyzing trace with hash 929217404, now seen corresponding path program 2 times [2024-11-08 18:41:19,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:19,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008715617] [2024-11-08 18:41:19,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:19,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:19,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:28,337 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 18:41:28,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:28,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008715617] [2024-11-08 18:41:28,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008715617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:28,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:28,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:41:28,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296908006] [2024-11-08 18:41:28,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:28,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:41:28,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:28,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:41:28,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:41:28,504 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-08 18:41:28,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 100 transitions, 1107 flow. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:41:28,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:41:28,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-08 18:41:28,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:41:30,600 INFO L124 PetriNetUnfolderBase]: 44/208 cut-off events. [2024-11-08 18:41:30,600 INFO L125 PetriNetUnfolderBase]: For 1196/1196 co-relation queries the response was YES. [2024-11-08 18:41:30,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1167 conditions, 208 events. 44/208 cut-off events. For 1196/1196 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 827 event pairs, 14 based on Foata normal form. 9/217 useless extension candidates. Maximal degree in co-relation 1096. Up to 87 conditions per place. [2024-11-08 18:41:30,603 INFO L140 encePairwiseOnDemand]: 19/30 looper letters, 53 selfloop transitions, 16 changer transitions 24/110 dead transitions. [2024-11-08 18:41:30,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 110 transitions, 1330 flow [2024-11-08 18:41:30,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 18:41:30,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-08 18:41:30,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 178 transitions. [2024-11-08 18:41:30,606 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39555555555555555 [2024-11-08 18:41:30,606 INFO L175 Difference]: Start difference. First operand has 176 places, 100 transitions, 1107 flow. Second operand 15 states and 178 transitions. [2024-11-08 18:41:30,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 110 transitions, 1330 flow [2024-11-08 18:41:30,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 110 transitions, 1278 flow, removed 2 selfloop flow, removed 13 redundant places. [2024-11-08 18:41:30,619 INFO L231 Difference]: Finished difference. Result has 176 places, 82 transitions, 843 flow [2024-11-08 18:41:30,620 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=1055, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=843, PETRI_PLACES=176, PETRI_TRANSITIONS=82} [2024-11-08 18:41:30,620 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 145 predicate places. [2024-11-08 18:41:30,620 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 82 transitions, 843 flow [2024-11-08 18:41:30,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:41:30,621 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:41:30,621 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 18:41:30,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 18:41:30,621 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:41:30,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:30,622 INFO L85 PathProgramCache]: Analyzing trace with hash 912236534, now seen corresponding path program 3 times [2024-11-08 18:41:30,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:30,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631388133] [2024-11-08 18:41:30,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:30,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:30,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:33,990 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 18:41:33,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:33,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631388133] [2024-11-08 18:41:33,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631388133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:33,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:33,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:41:33,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994782577] [2024-11-08 18:41:33,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:33,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:41:33,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:33,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:41:33,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:41:34,156 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-08 18:41:34,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 82 transitions, 843 flow. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:41:34,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:41:34,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-08 18:41:34,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:41:35,443 INFO L124 PetriNetUnfolderBase]: 31/158 cut-off events. [2024-11-08 18:41:35,443 INFO L125 PetriNetUnfolderBase]: For 927/927 co-relation queries the response was YES. [2024-11-08 18:41:35,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 850 conditions, 158 events. 31/158 cut-off events. For 927/927 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 471 event pairs, 8 based on Foata normal form. 6/164 useless extension candidates. Maximal degree in co-relation 788. Up to 57 conditions per place. [2024-11-08 18:41:35,446 INFO L140 encePairwiseOnDemand]: 19/30 looper letters, 47 selfloop transitions, 17 changer transitions 13/90 dead transitions. [2024-11-08 18:41:35,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 90 transitions, 1022 flow [2024-11-08 18:41:35,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:41:35,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-08 18:41:35,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 169 transitions. [2024-11-08 18:41:35,448 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4023809523809524 [2024-11-08 18:41:35,448 INFO L175 Difference]: Start difference. First operand has 176 places, 82 transitions, 843 flow. Second operand 14 states and 169 transitions. [2024-11-08 18:41:35,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 90 transitions, 1022 flow [2024-11-08 18:41:35,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 90 transitions, 901 flow, removed 10 selfloop flow, removed 28 redundant places. [2024-11-08 18:41:35,461 INFO L231 Difference]: Finished difference. Result has 148 places, 73 transitions, 675 flow [2024-11-08 18:41:35,461 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=722, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=675, PETRI_PLACES=148, PETRI_TRANSITIONS=73} [2024-11-08 18:41:35,462 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 117 predicate places. [2024-11-08 18:41:35,462 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 73 transitions, 675 flow [2024-11-08 18:41:35,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:41:35,462 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:41:35,462 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 18:41:35,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-08 18:41:35,463 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:41:35,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:35,463 INFO L85 PathProgramCache]: Analyzing trace with hash -2008290246, now seen corresponding path program 4 times [2024-11-08 18:41:35,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:35,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292428150] [2024-11-08 18:41:35,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:35,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:35,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:37,903 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 18:41:37,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:37,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292428150] [2024-11-08 18:41:37,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292428150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:37,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:37,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:41:37,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103205050] [2024-11-08 18:41:37,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:37,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:41:37,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:37,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:41:37,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:41:37,966 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-08 18:41:37,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 73 transitions, 675 flow. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:41:37,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:41:37,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-08 18:41:37,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:41:38,569 INFO L124 PetriNetUnfolderBase]: 23/129 cut-off events. [2024-11-08 18:41:38,570 INFO L125 PetriNetUnfolderBase]: For 540/540 co-relation queries the response was YES. [2024-11-08 18:41:38,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 638 conditions, 129 events. 23/129 cut-off events. For 540/540 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 286 event pairs, 9 based on Foata normal form. 3/132 useless extension candidates. Maximal degree in co-relation 579. Up to 38 conditions per place. [2024-11-08 18:41:38,571 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 41 selfloop transitions, 6 changer transitions 18/76 dead transitions. [2024-11-08 18:41:38,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 76 transitions, 806 flow [2024-11-08 18:41:38,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:41:38,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-08 18:41:38,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 102 transitions. [2024-11-08 18:41:38,573 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.425 [2024-11-08 18:41:38,573 INFO L175 Difference]: Start difference. First operand has 148 places, 73 transitions, 675 flow. Second operand 8 states and 102 transitions. [2024-11-08 18:41:38,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 76 transitions, 806 flow [2024-11-08 18:41:38,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 76 transitions, 733 flow, removed 6 selfloop flow, removed 19 redundant places. [2024-11-08 18:41:38,585 INFO L231 Difference]: Finished difference. Result has 127 places, 58 transitions, 519 flow [2024-11-08 18:41:38,585 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=519, PETRI_PLACES=127, PETRI_TRANSITIONS=58} [2024-11-08 18:41:38,586 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 96 predicate places. [2024-11-08 18:41:38,586 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 58 transitions, 519 flow [2024-11-08 18:41:38,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:41:38,586 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:41:38,587 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 18:41:38,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-08 18:41:38,587 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:41:38,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:38,588 INFO L85 PathProgramCache]: Analyzing trace with hash 911401361, now seen corresponding path program 1 times [2024-11-08 18:41:38,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:38,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376131674] [2024-11-08 18:41:38,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:38,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:38,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:42,168 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 18:41:42,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:42,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376131674] [2024-11-08 18:41:42,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376131674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:42,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:42,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:41:42,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688500755] [2024-11-08 18:41:42,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:42,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:41:42,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:42,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:41:42,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:41:42,242 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-11-08 18:41:42,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 58 transitions, 519 flow. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 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 18:41:42,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:41:42,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-11-08 18:41:42,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:41:43,090 INFO L124 PetriNetUnfolderBase]: 15/104 cut-off events. [2024-11-08 18:41:43,090 INFO L125 PetriNetUnfolderBase]: For 424/424 co-relation queries the response was YES. [2024-11-08 18:41:43,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 514 conditions, 104 events. 15/104 cut-off events. For 424/424 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 179 event pairs, 3 based on Foata normal form. 2/106 useless extension candidates. Maximal degree in co-relation 481. Up to 26 conditions per place. [2024-11-08 18:41:43,092 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 46 selfloop transitions, 13 changer transitions 0/68 dead transitions. [2024-11-08 18:41:43,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 68 transitions, 693 flow [2024-11-08 18:41:43,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 18:41:43,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-08 18:41:43,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 122 transitions. [2024-11-08 18:41:43,094 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3696969696969697 [2024-11-08 18:41:43,094 INFO L175 Difference]: Start difference. First operand has 127 places, 58 transitions, 519 flow. Second operand 11 states and 122 transitions. [2024-11-08 18:41:43,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 68 transitions, 693 flow [2024-11-08 18:41:43,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 68 transitions, 628 flow, removed 3 selfloop flow, removed 15 redundant places. [2024-11-08 18:41:43,101 INFO L231 Difference]: Finished difference. Result has 112 places, 63 transitions, 528 flow [2024-11-08 18:41:43,102 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=463, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=528, PETRI_PLACES=112, PETRI_TRANSITIONS=63} [2024-11-08 18:41:43,102 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 81 predicate places. [2024-11-08 18:41:43,102 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 63 transitions, 528 flow [2024-11-08 18:41:43,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 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 18:41:43,103 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:41:43,103 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 18:41:43,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-08 18:41:43,104 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:41:43,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:43,104 INFO L85 PathProgramCache]: Analyzing trace with hash 412700021, now seen corresponding path program 2 times [2024-11-08 18:41:43,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:43,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840746921] [2024-11-08 18:41:43,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:43,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:43,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:46,452 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 18:41:46,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:46,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840746921] [2024-11-08 18:41:46,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840746921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:46,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:46,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:41:46,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581165035] [2024-11-08 18:41:46,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:46,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:41:46,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:46,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:41:46,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:41:46,512 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-11-08 18:41:46,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 63 transitions, 528 flow. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 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 18:41:46,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:41:46,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-11-08 18:41:46,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:41:47,579 INFO L124 PetriNetUnfolderBase]: 13/107 cut-off events. [2024-11-08 18:41:47,579 INFO L125 PetriNetUnfolderBase]: For 420/420 co-relation queries the response was YES. [2024-11-08 18:41:47,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 107 events. 13/107 cut-off events. For 420/420 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 204 event pairs, 1 based on Foata normal form. 2/109 useless extension candidates. Maximal degree in co-relation 522. Up to 26 conditions per place. [2024-11-08 18:41:47,580 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 42 selfloop transitions, 23 changer transitions 0/74 dead transitions. [2024-11-08 18:41:47,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 74 transitions, 733 flow [2024-11-08 18:41:47,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 18:41:47,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-08 18:41:47,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 130 transitions. [2024-11-08 18:41:47,581 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3611111111111111 [2024-11-08 18:41:47,581 INFO L175 Difference]: Start difference. First operand has 112 places, 63 transitions, 528 flow. Second operand 12 states and 130 transitions. [2024-11-08 18:41:47,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 74 transitions, 733 flow [2024-11-08 18:41:47,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 74 transitions, 719 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-08 18:41:47,589 INFO L231 Difference]: Finished difference. Result has 123 places, 70 transitions, 630 flow [2024-11-08 18:41:47,589 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=630, PETRI_PLACES=123, PETRI_TRANSITIONS=70} [2024-11-08 18:41:47,590 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 92 predicate places. [2024-11-08 18:41:47,590 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 70 transitions, 630 flow [2024-11-08 18:41:47,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 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 18:41:47,591 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:41:47,591 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 18:41:47,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-08 18:41:47,591 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:41:47,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:47,592 INFO L85 PathProgramCache]: Analyzing trace with hash 413535194, now seen corresponding path program 4 times [2024-11-08 18:41:47,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:47,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539169200] [2024-11-08 18:41:47,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:47,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:47,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:53,009 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 18:41:53,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:53,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539169200] [2024-11-08 18:41:53,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539169200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:53,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:53,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:41:53,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202477890] [2024-11-08 18:41:53,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:53,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:41:53,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:53,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:41:53,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:41:53,104 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-08 18:41:53,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 70 transitions, 630 flow. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:41:53,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:41:53,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-08 18:41:53,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:41:54,484 INFO L124 PetriNetUnfolderBase]: 11/102 cut-off events. [2024-11-08 18:41:54,484 INFO L125 PetriNetUnfolderBase]: For 509/509 co-relation queries the response was YES. [2024-11-08 18:41:54,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 567 conditions, 102 events. 11/102 cut-off events. For 509/509 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 180 event pairs, 2 based on Foata normal form. 3/105 useless extension candidates. Maximal degree in co-relation 533. Up to 31 conditions per place. [2024-11-08 18:41:54,485 INFO L140 encePairwiseOnDemand]: 19/30 looper letters, 38 selfloop transitions, 15 changer transitions 9/72 dead transitions. [2024-11-08 18:41:54,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 72 transitions, 770 flow [2024-11-08 18:41:54,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:41:54,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-08 18:41:54,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 155 transitions. [2024-11-08 18:41:54,488 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36904761904761907 [2024-11-08 18:41:54,488 INFO L175 Difference]: Start difference. First operand has 123 places, 70 transitions, 630 flow. Second operand 14 states and 155 transitions. [2024-11-08 18:41:54,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 72 transitions, 770 flow [2024-11-08 18:41:54,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 72 transitions, 734 flow, removed 10 selfloop flow, removed 6 redundant places. [2024-11-08 18:41:54,496 INFO L231 Difference]: Finished difference. Result has 132 places, 63 transitions, 588 flow [2024-11-08 18:41:54,496 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=588, PETRI_PLACES=132, PETRI_TRANSITIONS=63} [2024-11-08 18:41:54,497 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 101 predicate places. [2024-11-08 18:41:54,497 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 63 transitions, 588 flow [2024-11-08 18:41:54,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:41:54,497 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:41:54,498 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:41:54,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-08 18:41:54,498 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:41:54,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:54,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1811328521, now seen corresponding path program 1 times [2024-11-08 18:41:54,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:54,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465749019] [2024-11-08 18:41:54,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:54,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:54,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:58,906 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 18:41:58,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:58,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465749019] [2024-11-08 18:41:58,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465749019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:58,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:58,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:41:58,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066148217] [2024-11-08 18:41:58,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:58,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:41:58,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:58,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:41:58,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:41:58,999 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-08 18:41:58,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 63 transitions, 588 flow. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:41:58,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:41:58,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-08 18:41:58,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:41:59,746 INFO L124 PetriNetUnfolderBase]: 8/89 cut-off events. [2024-11-08 18:41:59,747 INFO L125 PetriNetUnfolderBase]: For 461/461 co-relation queries the response was YES. [2024-11-08 18:41:59,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 508 conditions, 89 events. 8/89 cut-off events. For 461/461 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 113 event pairs, 1 based on Foata normal form. 2/91 useless extension candidates. Maximal degree in co-relation 473. Up to 21 conditions per place. [2024-11-08 18:41:59,748 INFO L140 encePairwiseOnDemand]: 21/30 looper letters, 37 selfloop transitions, 5 changer transitions 13/64 dead transitions. [2024-11-08 18:41:59,748 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 64 transitions, 710 flow [2024-11-08 18:41:59,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 18:41:59,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-08 18:41:59,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 126 transitions. [2024-11-08 18:41:59,749 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38181818181818183 [2024-11-08 18:41:59,749 INFO L175 Difference]: Start difference. First operand has 132 places, 63 transitions, 588 flow. Second operand 11 states and 126 transitions. [2024-11-08 18:41:59,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 64 transitions, 710 flow [2024-11-08 18:41:59,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 64 transitions, 649 flow, removed 8 selfloop flow, removed 14 redundant places. [2024-11-08 18:41:59,753 INFO L231 Difference]: Finished difference. Result has 120 places, 51 transitions, 454 flow [2024-11-08 18:41:59,754 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=521, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=454, PETRI_PLACES=120, PETRI_TRANSITIONS=51} [2024-11-08 18:41:59,754 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 89 predicate places. [2024-11-08 18:41:59,755 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 51 transitions, 454 flow [2024-11-08 18:41:59,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:41:59,755 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:41:59,755 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:41:59,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-08 18:41:59,756 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:41:59,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:59,756 INFO L85 PathProgramCache]: Analyzing trace with hash -91200877, now seen corresponding path program 2 times [2024-11-08 18:41:59,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:59,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826502797] [2024-11-08 18:41:59,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:59,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:59,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:03,382 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 18:42:03,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:03,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826502797] [2024-11-08 18:42:03,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826502797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:03,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:03,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:42:03,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833077243] [2024-11-08 18:42:03,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:03,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:42:03,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:03,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:42:03,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:42:03,451 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-08 18:42:03,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 51 transitions, 454 flow. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:03,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:42:03,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-08 18:42:03,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:42:04,298 INFO L124 PetriNetUnfolderBase]: 4/70 cut-off events. [2024-11-08 18:42:04,299 INFO L125 PetriNetUnfolderBase]: For 360/360 co-relation queries the response was YES. [2024-11-08 18:42:04,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 70 events. 4/70 cut-off events. For 360/360 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 35 event pairs, 0 based on Foata normal form. 2/72 useless extension candidates. Maximal degree in co-relation 343. Up to 21 conditions per place. [2024-11-08 18:42:04,299 INFO L140 encePairwiseOnDemand]: 21/30 looper letters, 28 selfloop transitions, 6 changer transitions 9/52 dead transitions. [2024-11-08 18:42:04,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 52 transitions, 552 flow [2024-11-08 18:42:04,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 18:42:04,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-08 18:42:04,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 125 transitions. [2024-11-08 18:42:04,300 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3787878787878788 [2024-11-08 18:42:04,301 INFO L175 Difference]: Start difference. First operand has 120 places, 51 transitions, 454 flow. Second operand 11 states and 125 transitions. [2024-11-08 18:42:04,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 52 transitions, 552 flow [2024-11-08 18:42:04,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 52 transitions, 501 flow, removed 16 selfloop flow, removed 13 redundant places. [2024-11-08 18:42:04,306 INFO L231 Difference]: Finished difference. Result has 103 places, 43 transitions, 380 flow [2024-11-08 18:42:04,306 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=380, PETRI_PLACES=103, PETRI_TRANSITIONS=43} [2024-11-08 18:42:04,307 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 72 predicate places. [2024-11-08 18:42:04,307 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 43 transitions, 380 flow [2024-11-08 18:42:04,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:04,307 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:42:04,308 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:04,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-08 18:42:04,308 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:42:04,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:04,309 INFO L85 PathProgramCache]: Analyzing trace with hash -844824829, now seen corresponding path program 1 times [2024-11-08 18:42:04,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:04,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146894026] [2024-11-08 18:42:04,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:04,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:04,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:06,752 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 18:42:06,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:06,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146894026] [2024-11-08 18:42:06,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146894026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:06,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:06,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:42:06,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605544561] [2024-11-08 18:42:06,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:06,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:42:06,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:06,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:42:06,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:42:06,791 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-11-08 18:42:06,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 43 transitions, 380 flow. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:06,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:42:06,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-11-08 18:42:06,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:42:07,192 INFO L124 PetriNetUnfolderBase]: 1/57 cut-off events. [2024-11-08 18:42:07,193 INFO L125 PetriNetUnfolderBase]: For 305/305 co-relation queries the response was YES. [2024-11-08 18:42:07,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 57 events. 1/57 cut-off events. For 305/305 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 1/58 useless extension candidates. Maximal degree in co-relation 264. Up to 26 conditions per place. [2024-11-08 18:42:07,193 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 28 selfloop transitions, 6 changer transitions 0/42 dead transitions. [2024-11-08 18:42:07,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 42 transitions, 435 flow [2024-11-08 18:42:07,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:42:07,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-08 18:42:07,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 81 transitions. [2024-11-08 18:42:07,195 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3375 [2024-11-08 18:42:07,195 INFO L175 Difference]: Start difference. First operand has 103 places, 43 transitions, 380 flow. Second operand 8 states and 81 transitions. [2024-11-08 18:42:07,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 42 transitions, 435 flow [2024-11-08 18:42:07,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 42 transitions, 414 flow, removed 2 selfloop flow, removed 9 redundant places. [2024-11-08 18:42:07,198 INFO L231 Difference]: Finished difference. Result has 85 places, 42 transitions, 358 flow [2024-11-08 18:42:07,198 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=358, PETRI_PLACES=85, PETRI_TRANSITIONS=42} [2024-11-08 18:42:07,199 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 54 predicate places. [2024-11-08 18:42:07,199 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 42 transitions, 358 flow [2024-11-08 18:42:07,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:07,199 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:42:07,199 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] [2024-11-08 18:42:07,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-08 18:42:07,200 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 18:42:07,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:07,200 INFO L85 PathProgramCache]: Analyzing trace with hash -419765563, now seen corresponding path program 1 times [2024-11-08 18:42:07,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:07,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45880627] [2024-11-08 18:42:07,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:07,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:07,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:10,183 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 18:42:10,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:10,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45880627] [2024-11-08 18:42:10,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45880627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:10,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:10,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:42:10,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716949280] [2024-11-08 18:42:10,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:10,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:42:10,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:10,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:42:10,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:42:10,250 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-08 18:42:10,251 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 42 transitions, 358 flow. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:10,251 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:42:10,251 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-08 18:42:10,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:42:10,650 INFO L124 PetriNetUnfolderBase]: 1/56 cut-off events. [2024-11-08 18:42:10,650 INFO L125 PetriNetUnfolderBase]: For 296/296 co-relation queries the response was YES. [2024-11-08 18:42:10,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 56 events. 1/56 cut-off events. For 296/296 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 1/57 useless extension candidates. Maximal degree in co-relation 253. Up to 21 conditions per place. [2024-11-08 18:42:10,651 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 0 selfloop transitions, 0 changer transitions 41/41 dead transitions. [2024-11-08 18:42:10,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 41 transitions, 416 flow [2024-11-08 18:42:10,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:42:10,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 18:42:10,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 96 transitions. [2024-11-08 18:42:10,652 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35555555555555557 [2024-11-08 18:42:10,652 INFO L175 Difference]: Start difference. First operand has 85 places, 42 transitions, 358 flow. Second operand 9 states and 96 transitions. [2024-11-08 18:42:10,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 41 transitions, 416 flow [2024-11-08 18:42:10,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 41 transitions, 397 flow, removed 2 selfloop flow, removed 8 redundant places. [2024-11-08 18:42:10,655 INFO L231 Difference]: Finished difference. Result has 80 places, 0 transitions, 0 flow [2024-11-08 18:42:10,655 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=333, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=80, PETRI_TRANSITIONS=0} [2024-11-08 18:42:10,656 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 49 predicate places. [2024-11-08 18:42:10,656 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 0 transitions, 0 flow [2024-11-08 18:42:10,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:10,659 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2024-11-08 18:42:10,660 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2024-11-08 18:42:10,660 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2024-11-08 18:42:10,660 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2024-11-08 18:42:10,661 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-11-08 18:42:10,661 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2024-11-08 18:42:10,661 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2024-11-08 18:42:10,661 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2024-11-08 18:42:10,661 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2024-11-08 18:42:10,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-08 18:42:10,662 INFO L407 BasicCegarLoop]: Path program histogram: [7, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:10,669 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-08 18:42:10,669 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:42:10,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:42:10 BasicIcfg [2024-11-08 18:42:10,676 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:42:10,676 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:42:10,677 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:42:10,677 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:42:10,678 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:40:02" (3/4) ... [2024-11-08 18:42:10,680 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 18:42:10,684 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-08 18:42:10,690 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 86 nodes and edges [2024-11-08 18:42:10,690 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-08 18:42:10,691 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-08 18:42:10,824 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 18:42:10,824 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 18:42:10,824 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:42:10,825 INFO L158 Benchmark]: Toolchain (without parser) took 131279.99ms. Allocated memory was 132.1MB in the beginning and 761.3MB in the end (delta: 629.1MB). Free memory was 91.8MB in the beginning and 282.5MB in the end (delta: -190.8MB). Peak memory consumption was 439.8MB. Max. memory is 16.1GB. [2024-11-08 18:42:10,825 INFO L158 Benchmark]: CDTParser took 1.46ms. Allocated memory is still 132.1MB. Free memory is still 79.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:42:10,826 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1150.11ms. Allocated memory was 132.1MB in the beginning and 174.1MB in the end (delta: 41.9MB). Free memory was 91.4MB in the beginning and 139.0MB in the end (delta: -47.6MB). Peak memory consumption was 40.2MB. Max. memory is 16.1GB. [2024-11-08 18:42:10,826 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.43ms. Allocated memory is still 174.1MB. Free memory was 139.0MB in the beginning and 137.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:42:10,827 INFO L158 Benchmark]: Boogie Preprocessor took 76.29ms. Allocated memory is still 174.1MB. Free memory was 137.0MB in the beginning and 133.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:42:10,827 INFO L158 Benchmark]: RCFGBuilder took 1343.82ms. Allocated memory is still 174.1MB. Free memory was 133.8MB in the beginning and 111.1MB in the end (delta: 22.7MB). Peak memory consumption was 72.0MB. Max. memory is 16.1GB. [2024-11-08 18:42:10,828 INFO L158 Benchmark]: TraceAbstraction took 128475.91ms. Allocated memory was 174.1MB in the beginning and 761.3MB in the end (delta: 587.2MB). Free memory was 110.1MB in the beginning and 287.8MB in the end (delta: -177.7MB). Peak memory consumption was 409.5MB. Max. memory is 16.1GB. [2024-11-08 18:42:10,829 INFO L158 Benchmark]: Witness Printer took 147.96ms. Allocated memory is still 761.3MB. Free memory was 287.8MB in the beginning and 282.5MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-08 18:42:10,831 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.46ms. Allocated memory is still 132.1MB. Free memory is still 79.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1150.11ms. Allocated memory was 132.1MB in the beginning and 174.1MB in the end (delta: 41.9MB). Free memory was 91.4MB in the beginning and 139.0MB in the end (delta: -47.6MB). Peak memory consumption was 40.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.43ms. Allocated memory is still 174.1MB. Free memory was 139.0MB in the beginning and 137.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.29ms. Allocated memory is still 174.1MB. Free memory was 137.0MB in the beginning and 133.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1343.82ms. Allocated memory is still 174.1MB. Free memory was 133.8MB in the beginning and 111.1MB in the end (delta: 22.7MB). Peak memory consumption was 72.0MB. Max. memory is 16.1GB. * TraceAbstraction took 128475.91ms. Allocated memory was 174.1MB in the beginning and 761.3MB in the end (delta: 587.2MB). Free memory was 110.1MB in the beginning and 287.8MB in the end (delta: -177.7MB). Peak memory consumption was 409.5MB. Max. memory is 16.1GB. * Witness Printer took 147.96ms. Allocated memory is still 761.3MB. Free memory was 287.8MB in the beginning and 282.5MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 943]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 943]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 40 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 128.3s, OverallIterations: 32, TraceHistogramMax: 10, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 32.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1396 SdHoareTripleChecker+Valid, 10.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1237 mSDsluCounter, 1671 SdHoareTripleChecker+Invalid, 9.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1547 mSDsCounter, 163 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5173 IncrementalHoareTripleChecker+Invalid, 5336 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 163 mSolverCounterUnsat, 124 mSDtfsCounter, 5173 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 615 GetRequests, 162 SyntacticMatches, 11 SemanticMatches, 442 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1330 ImplicationChecksByTransitivity, 33.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1462occurred in iteration=18, InterpolantAutomatonStates: 363, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 91.6s InterpolantComputationTime, 1562 NumberOfCodeBlocks, 1522 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 1590 ConstructedInterpolants, 0 QuantifiedInterpolants, 113117 SizeOfPredicates, 24 NumberOfNonLiveVariables, 1144 ConjunctsInSsa, 89 ConjunctsInUnsatCore, 41 InterpolantComputations, 29 PerfectInterpolantSequences, 4673/5103 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-08 18:42:10,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7608e330-1d49-4d16-9abc-1f7ec4294e9c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE