./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be16303d-e320-47f2-908e-4c1cfadf8e5c/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be16303d-e320-47f2-908e-4c1cfadf8e5c/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_be16303d-e320-47f2-908e-4c1cfadf8e5c/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be16303d-e320-47f2-908e-4c1cfadf8e5c/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be16303d-e320-47f2-908e-4c1cfadf8e5c/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_be16303d-e320-47f2-908e-4c1cfadf8e5c/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 5ac72ff2379990464c5f55660be1e08b12557a61aceeef8401296ef66be035fc --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:42:01,804 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:42:01,962 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be16303d-e320-47f2-908e-4c1cfadf8e5c/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 17:42:01,970 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:42:01,971 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:42:02,018 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:42:02,020 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:42:02,021 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:42:02,022 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:42:02,024 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:42:02,024 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:42:02,025 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:42:02,026 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:42:02,026 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:42:02,029 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:42:02,030 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:42:02,030 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:42:02,030 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:42:02,031 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:42:02,031 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:42:02,031 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:42:02,036 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:42:02,036 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:42:02,037 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:42:02,037 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:42:02,037 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 17:42:02,038 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:42:02,038 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:42:02,038 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:42:02,039 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:42:02,041 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:42:02,042 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:42:02,043 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:42:02,043 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:42:02,043 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:42:02,044 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:42:02,045 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:42:02,046 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:42:02,046 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:42:02,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:42:02,048 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:42:02,048 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:42:02,048 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:42:02,049 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:42:02,049 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_be16303d-e320-47f2-908e-4c1cfadf8e5c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be16303d-e320-47f2-908e-4c1cfadf8e5c/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ac72ff2379990464c5f55660be1e08b12557a61aceeef8401296ef66be035fc [2024-11-08 17:42:02,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:42:02,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:42:02,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:42:02,475 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:42:02,475 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:42:02,477 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be16303d-e320-47f2-908e-4c1cfadf8e5c/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i Unable to find full path for "g++" [2024-11-08 17:42:05,028 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:42:05,429 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:42:05,430 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be16303d-e320-47f2-908e-4c1cfadf8e5c/sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i [2024-11-08 17:42:05,455 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be16303d-e320-47f2-908e-4c1cfadf8e5c/bin/uautomizer-verify-jihMAELWvX/data/ae89e8b78/66ce87b300814797a48df1593481bda6/FLAG51108fdbb [2024-11-08 17:42:05,633 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be16303d-e320-47f2-908e-4c1cfadf8e5c/bin/uautomizer-verify-jihMAELWvX/data/ae89e8b78/66ce87b300814797a48df1593481bda6 [2024-11-08 17:42:05,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:42:05,638 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:42:05,641 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:42:05,641 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:42:05,653 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:42:05,654 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:42:05" (1/1) ... [2024-11-08 17:42:05,656 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23d696e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:42:05, skipping insertion in model container [2024-11-08 17:42:05,656 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:42:05" (1/1) ... [2024-11-08 17:42:05,761 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:42:06,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:42:06,681 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:42:06,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:42:06,860 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:42:06,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:42:06 WrapperNode [2024-11-08 17:42:06,861 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:42:06,862 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:42:06,863 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:42:06,863 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:42:06,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:42:06" (1/1) ... [2024-11-08 17:42:06,893 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:42:06" (1/1) ... [2024-11-08 17:42:06,931 INFO L138 Inliner]: procedures = 272, calls = 65, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 234 [2024-11-08 17:42:06,932 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:42:06,933 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:42:06,933 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:42:06,933 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:42:06,950 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:42:06" (1/1) ... [2024-11-08 17:42:06,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:42:06" (1/1) ... [2024-11-08 17:42:06,955 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:42:06" (1/1) ... [2024-11-08 17:42:06,978 INFO L175 MemorySlicer]: Split 35 memory accesses to 4 slices as follows [2, 5, 26, 2]. 74 percent of accesses are in the largest equivalence class. The 23 initializations are split as follows [2, 5, 16, 0]. The 5 writes are split as follows [0, 0, 4, 1]. [2024-11-08 17:42:06,978 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:42:06" (1/1) ... [2024-11-08 17:42:06,979 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:42:06" (1/1) ... [2024-11-08 17:42:06,992 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:42:06" (1/1) ... [2024-11-08 17:42:06,998 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:42:06" (1/1) ... [2024-11-08 17:42:07,001 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:42:06" (1/1) ... [2024-11-08 17:42:07,003 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:42:06" (1/1) ... [2024-11-08 17:42:07,008 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:42:07,009 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:42:07,010 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:42:07,010 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:42:07,011 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:42:06" (1/1) ... [2024-11-08 17:42:07,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:42:07,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be16303d-e320-47f2-908e-4c1cfadf8e5c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:42:07,083 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be16303d-e320-47f2-908e-4c1cfadf8e5c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:42:07,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be16303d-e320-47f2-908e-4c1cfadf8e5c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:42:07,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 17:42:07,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 17:42:07,156 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 17:42:07,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 17:42:07,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 17:42:07,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 17:42:07,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 17:42:07,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 17:42:07,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 17:42:07,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 17:42:07,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 17:42:07,163 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 17:42:07,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:42:07,163 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 17:42:07,163 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 17:42:07,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:42:07,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 17:42:07,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 17:42:07,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 17:42:07,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:42:07,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:42:07,169 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 17:42:07,360 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:42:07,363 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:42:07,973 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 17:42:07,974 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:42:08,290 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:42:08,290 INFO L316 CfgBuilder]: Removed 20 assume(true) statements. [2024-11-08 17:42:08,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:42:08 BoogieIcfgContainer [2024-11-08 17:42:08,291 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:42:08,297 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:42:08,298 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:42:08,302 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:42:08,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:42:05" (1/3) ... [2024-11-08 17:42:08,304 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e12eb37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:42:08, skipping insertion in model container [2024-11-08 17:42:08,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:42:06" (2/3) ... [2024-11-08 17:42:08,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e12eb37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:42:08, skipping insertion in model container [2024-11-08 17:42:08,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:42:08" (3/3) ... [2024-11-08 17:42:08,309 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_79-equ_racefree.i [2024-11-08 17:42:08,333 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:42:08,333 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-11-08 17:42:08,333 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 17:42:08,446 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-08 17:42:08,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 125 transitions, 257 flow [2024-11-08 17:42:08,615 INFO L124 PetriNetUnfolderBase]: 40/179 cut-off events. [2024-11-08 17:42:08,616 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 17:42:08,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 179 events. 40/179 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 651 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 103. Up to 8 conditions per place. [2024-11-08 17:42:08,623 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 125 transitions, 257 flow [2024-11-08 17:42:08,631 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 123 transitions, 253 flow [2024-11-08 17:42:08,654 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:42:08,664 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;@2bcbffbf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:42:08,665 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-08 17:42:08,678 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:42:08,678 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-11-08 17:42:08,678 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:42:08,679 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:42:08,680 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-08 17:42:08,680 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-08 17:42:08,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:42:08,688 INFO L85 PathProgramCache]: Analyzing trace with hash 18923105, now seen corresponding path program 1 times [2024-11-08 17:42:08,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:42:08,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208179688] [2024-11-08 17:42:08,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:42:08,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:42:08,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:42:09,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:42:09,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:42:09,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208179688] [2024-11-08 17:42:09,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208179688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:42:09,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:42:09,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:42:09,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400093202] [2024-11-08 17:42:09,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:42:09,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:42:09,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:42:09,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:42:09,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:42:09,278 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 125 [2024-11-08 17:42:09,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 123 transitions, 253 flow. Second operand has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 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 17:42:09,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:42:09,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 125 [2024-11-08 17:42:09,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:42:10,305 INFO L124 PetriNetUnfolderBase]: 867/2699 cut-off events. [2024-11-08 17:42:10,306 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-08 17:42:10,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4359 conditions, 2699 events. 867/2699 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 22053 event pairs, 714 based on Foata normal form. 522/2954 useless extension candidates. Maximal degree in co-relation 2108. Up to 852 conditions per place. [2024-11-08 17:42:10,340 INFO L140 encePairwiseOnDemand]: 99/125 looper letters, 86 selfloop transitions, 5 changer transitions 0/144 dead transitions. [2024-11-08 17:42:10,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 144 transitions, 483 flow [2024-11-08 17:42:10,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:42:10,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:42:10,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 344 transitions. [2024-11-08 17:42:10,364 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.688 [2024-11-08 17:42:10,368 INFO L175 Difference]: Start difference. First operand has 101 places, 123 transitions, 253 flow. Second operand 4 states and 344 transitions. [2024-11-08 17:42:10,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 144 transitions, 483 flow [2024-11-08 17:42:10,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 144 transitions, 483 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:42:10,382 INFO L231 Difference]: Finished difference. Result has 104 places, 103 transitions, 230 flow [2024-11-08 17:42:10,385 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=230, PETRI_PLACES=104, PETRI_TRANSITIONS=103} [2024-11-08 17:42:10,394 INFO L277 CegarLoopForPetriNet]: 101 programPoint places, 3 predicate places. [2024-11-08 17:42:10,394 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 103 transitions, 230 flow [2024-11-08 17:42:10,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 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 17:42:10,395 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:42:10,395 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-08 17:42:10,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:42:10,396 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-08 17:42:10,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:42:10,399 INFO L85 PathProgramCache]: Analyzing trace with hash 18923181, now seen corresponding path program 1 times [2024-11-08 17:42:10,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:42:10,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789029537] [2024-11-08 17:42:10,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:42:10,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:42:10,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:42:10,556 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 17:42:10,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:42:10,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789029537] [2024-11-08 17:42:10,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789029537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:42:10,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:42:10,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:42:10,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964144798] [2024-11-08 17:42:10,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:42:10,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:42:10,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:42:10,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:42:10,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:42:10,572 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 125 [2024-11-08 17:42:10,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 103 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 17:42:10,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:42:10,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 125 [2024-11-08 17:42:10,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:42:11,149 INFO L124 PetriNetUnfolderBase]: 867/2705 cut-off events. [2024-11-08 17:42:11,150 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-08 17:42:11,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4430 conditions, 2705 events. 867/2705 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 22138 event pairs, 731 based on Foata normal form. 1/2440 useless extension candidates. Maximal degree in co-relation 2170. Up to 1650 conditions per place. [2024-11-08 17:42:11,173 INFO L140 encePairwiseOnDemand]: 122/125 looper letters, 48 selfloop transitions, 2 changer transitions 0/102 dead transitions. [2024-11-08 17:42:11,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 102 transitions, 328 flow [2024-11-08 17:42:11,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:42:11,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:42:11,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions. [2024-11-08 17:42:11,179 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5573333333333333 [2024-11-08 17:42:11,180 INFO L175 Difference]: Start difference. First operand has 104 places, 103 transitions, 230 flow. Second operand 3 states and 209 transitions. [2024-11-08 17:42:11,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 102 transitions, 328 flow [2024-11-08 17:42:11,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 102 transitions, 323 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:42:11,189 INFO L231 Difference]: Finished difference. Result has 103 places, 102 transitions, 227 flow [2024-11-08 17:42:11,190 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=227, PETRI_PLACES=103, PETRI_TRANSITIONS=102} [2024-11-08 17:42:11,191 INFO L277 CegarLoopForPetriNet]: 101 programPoint places, 2 predicate places. [2024-11-08 17:42:11,191 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 102 transitions, 227 flow [2024-11-08 17:42:11,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 17:42:11,192 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:42:11,192 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-08 17:42:11,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:42:11,194 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-08 17:42:11,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:42:11,195 INFO L85 PathProgramCache]: Analyzing trace with hash 586616899, now seen corresponding path program 1 times [2024-11-08 17:42:11,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:42:11,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197015666] [2024-11-08 17:42:11,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:42:11,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:42:11,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:42:11,373 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 17:42:11,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:42:11,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197015666] [2024-11-08 17:42:11,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197015666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:42:11,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:42:11,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:42:11,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017528479] [2024-11-08 17:42:11,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:42:11,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:42:11,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:42:11,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:42:11,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:42:11,388 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 125 [2024-11-08 17:42:11,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 102 transitions, 227 flow. Second operand has 5 states, 5 states have (on average 53.8) internal successors, (269), 5 states have internal predecessors, (269), 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 17:42:11,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:42:11,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 125 [2024-11-08 17:42:11,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:42:12,102 INFO L124 PetriNetUnfolderBase]: 867/2697 cut-off events. [2024-11-08 17:42:12,102 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-08 17:42:12,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4402 conditions, 2697 events. 867/2697 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 22052 event pairs, 714 based on Foata normal form. 1/2433 useless extension candidates. Maximal degree in co-relation 2218. Up to 1591 conditions per place. [2024-11-08 17:42:12,125 INFO L140 encePairwiseOnDemand]: 118/125 looper letters, 51 selfloop transitions, 7 changer transitions 8/118 dead transitions. [2024-11-08 17:42:12,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 118 transitions, 391 flow [2024-11-08 17:42:12,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:42:12,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 17:42:12,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 331 transitions. [2024-11-08 17:42:12,129 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5296 [2024-11-08 17:42:12,129 INFO L175 Difference]: Start difference. First operand has 103 places, 102 transitions, 227 flow. Second operand 5 states and 331 transitions. [2024-11-08 17:42:12,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 118 transitions, 391 flow [2024-11-08 17:42:12,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 118 transitions, 387 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:42:12,137 INFO L231 Difference]: Finished difference. Result has 104 places, 101 transitions, 235 flow [2024-11-08 17:42:12,138 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=235, PETRI_PLACES=104, PETRI_TRANSITIONS=101} [2024-11-08 17:42:12,140 INFO L277 CegarLoopForPetriNet]: 101 programPoint places, 3 predicate places. [2024-11-08 17:42:12,140 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 101 transitions, 235 flow [2024-11-08 17:42:12,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.8) internal successors, (269), 5 states have internal predecessors, (269), 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 17:42:12,141 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:42:12,141 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-08 17:42:12,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:42:12,142 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-08 17:42:12,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:42:12,143 INFO L85 PathProgramCache]: Analyzing trace with hash 586619216, now seen corresponding path program 1 times [2024-11-08 17:42:12,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:42:12,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427022084] [2024-11-08 17:42:12,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:42:12,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:42:12,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:42:12,242 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 17:42:12,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:42:12,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427022084] [2024-11-08 17:42:12,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427022084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:42:12,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:42:12,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:42:12,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031265880] [2024-11-08 17:42:12,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:42:12,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:42:12,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:42:12,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:42:12,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:42:12,257 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 125 [2024-11-08 17:42:12,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 101 transitions, 235 flow. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 17:42:12,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:42:12,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 125 [2024-11-08 17:42:12,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:42:12,833 INFO L124 PetriNetUnfolderBase]: 867/2703 cut-off events. [2024-11-08 17:42:12,834 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-11-08 17:42:12,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4449 conditions, 2703 events. 867/2703 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 22119 event pairs, 731 based on Foata normal form. 1/2438 useless extension candidates. Maximal degree in co-relation 2151. Up to 1650 conditions per place. [2024-11-08 17:42:12,851 INFO L140 encePairwiseOnDemand]: 122/125 looper letters, 47 selfloop transitions, 2 changer transitions 0/100 dead transitions. [2024-11-08 17:42:12,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 100 transitions, 331 flow [2024-11-08 17:42:12,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:42:12,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:42:12,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 208 transitions. [2024-11-08 17:42:12,855 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5546666666666666 [2024-11-08 17:42:12,856 INFO L175 Difference]: Start difference. First operand has 104 places, 101 transitions, 235 flow. Second operand 3 states and 208 transitions. [2024-11-08 17:42:12,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 100 transitions, 331 flow [2024-11-08 17:42:12,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 100 transitions, 317 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-08 17:42:12,862 INFO L231 Difference]: Finished difference. Result has 101 places, 100 transitions, 223 flow [2024-11-08 17:42:12,863 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=223, PETRI_PLACES=101, PETRI_TRANSITIONS=100} [2024-11-08 17:42:12,866 INFO L277 CegarLoopForPetriNet]: 101 programPoint places, 0 predicate places. [2024-11-08 17:42:12,866 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 100 transitions, 223 flow [2024-11-08 17:42:12,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 17:42:12,867 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:42:12,867 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:42:12,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:42:12,868 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-08 17:42:12,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:42:12,870 INFO L85 PathProgramCache]: Analyzing trace with hash -336304653, now seen corresponding path program 1 times [2024-11-08 17:42:12,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:42:12,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105264219] [2024-11-08 17:42:12,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:42:12,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:42:12,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:42:13,024 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 17:42:13,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:42:13,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105264219] [2024-11-08 17:42:13,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105264219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:42:13,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:42:13,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:42:13,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067882837] [2024-11-08 17:42:13,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:42:13,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:42:13,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:42:13,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:42:13,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:42:13,067 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 125 [2024-11-08 17:42:13,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 100 transitions, 223 flow. Second operand has 4 states, 4 states have (on average 51.25) internal successors, (205), 4 states have internal predecessors, (205), 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 17:42:13,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:42:13,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 125 [2024-11-08 17:42:13,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:42:13,723 INFO L124 PetriNetUnfolderBase]: 1004/2890 cut-off events. [2024-11-08 17:42:13,724 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-08 17:42:13,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4815 conditions, 2890 events. 1004/2890 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 23049 event pairs, 270 based on Foata normal form. 38/2647 useless extension candidates. Maximal degree in co-relation 2427. Up to 1763 conditions per place. [2024-11-08 17:42:13,743 INFO L140 encePairwiseOnDemand]: 118/125 looper letters, 85 selfloop transitions, 3 changer transitions 0/133 dead transitions. [2024-11-08 17:42:13,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 133 transitions, 465 flow [2024-11-08 17:42:13,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:42:13,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:42:13,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 287 transitions. [2024-11-08 17:42:13,745 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.574 [2024-11-08 17:42:13,746 INFO L175 Difference]: Start difference. First operand has 101 places, 100 transitions, 223 flow. Second operand 4 states and 287 transitions. [2024-11-08 17:42:13,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 133 transitions, 465 flow [2024-11-08 17:42:13,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 133 transitions, 461 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:42:13,751 INFO L231 Difference]: Finished difference. Result has 101 places, 98 transitions, 227 flow [2024-11-08 17:42:13,751 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=227, PETRI_PLACES=101, PETRI_TRANSITIONS=98} [2024-11-08 17:42:13,752 INFO L277 CegarLoopForPetriNet]: 101 programPoint places, 0 predicate places. [2024-11-08 17:42:13,753 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 98 transitions, 227 flow [2024-11-08 17:42:13,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.25) internal successors, (205), 4 states have internal predecessors, (205), 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 17:42:13,753 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:42:13,754 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:42:13,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:42:13,754 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-08 17:42:13,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:42:13,755 INFO L85 PathProgramCache]: Analyzing trace with hash -705744881, now seen corresponding path program 1 times [2024-11-08 17:42:13,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:42:13,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58476291] [2024-11-08 17:42:13,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:42:13,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:42:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:42:13,791 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:42:13,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:42:13,855 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:42:13,855 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:42:13,858 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2024-11-08 17:42:13,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2024-11-08 17:42:13,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2024-11-08 17:42:13,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2024-11-08 17:42:13,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2024-11-08 17:42:13,863 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2024-11-08 17:42:13,863 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2024-11-08 17:42:13,863 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2024-11-08 17:42:13,864 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2024-11-08 17:42:13,865 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2024-11-08 17:42:13,865 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2024-11-08 17:42:13,866 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2024-11-08 17:42:13,866 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2024-11-08 17:42:13,867 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2024-11-08 17:42:13,867 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2024-11-08 17:42:13,867 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2024-11-08 17:42:13,867 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2024-11-08 17:42:13,868 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2024-11-08 17:42:13,868 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2024-11-08 17:42:13,868 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2024-11-08 17:42:13,868 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2024-11-08 17:42:13,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:42:13,869 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-08 17:42:13,875 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 17:42:13,875 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 17:42:13,936 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-08 17:42:13,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 171 transitions, 358 flow [2024-11-08 17:42:13,990 INFO L124 PetriNetUnfolderBase]: 67/302 cut-off events. [2024-11-08 17:42:13,990 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 17:42:13,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 302 events. 67/302 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1278 event pairs, 0 based on Foata normal form. 0/197 useless extension candidates. Maximal degree in co-relation 181. Up to 12 conditions per place. [2024-11-08 17:42:13,993 INFO L82 GeneralOperation]: Start removeDead. Operand has 137 places, 171 transitions, 358 flow [2024-11-08 17:42:13,999 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 137 places, 170 transitions, 356 flow [2024-11-08 17:42:14,000 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:42:14,001 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;@2bcbffbf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:42:14,004 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-08 17:42:14,007 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:42:14,007 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-11-08 17:42:14,007 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:42:14,007 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:42:14,007 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-08 17:42:14,008 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-08 17:42:14,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:42:14,008 INFO L85 PathProgramCache]: Analyzing trace with hash 24187169, now seen corresponding path program 1 times [2024-11-08 17:42:14,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:42:14,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848162567] [2024-11-08 17:42:14,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:42:14,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:42:14,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:42:14,079 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 17:42:14,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:42:14,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848162567] [2024-11-08 17:42:14,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848162567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:42:14,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:42:14,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:42:14,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263910622] [2024-11-08 17:42:14,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:42:14,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:42:14,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:42:14,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:42:14,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:42:14,097 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 171 [2024-11-08 17:42:14,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 170 transitions, 356 flow. Second operand has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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 17:42:14,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:42:14,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 171 [2024-11-08 17:42:14,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:42:22,450 INFO L124 PetriNetUnfolderBase]: 30735/65387 cut-off events. [2024-11-08 17:42:22,450 INFO L125 PetriNetUnfolderBase]: For 232/232 co-relation queries the response was YES. [2024-11-08 17:42:22,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111036 conditions, 65387 events. 30735/65387 cut-off events. For 232/232 co-relation queries the response was YES. Maximal size of possible extension queue 2020. Compared 735469 event pairs, 27200 based on Foata normal form. 15156/74640 useless extension candidates. Maximal degree in co-relation 24592. Up to 23422 conditions per place. [2024-11-08 17:42:22,959 INFO L140 encePairwiseOnDemand]: 135/171 looper letters, 126 selfloop transitions, 5 changer transitions 0/201 dead transitions. [2024-11-08 17:42:22,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 201 transitions, 694 flow [2024-11-08 17:42:22,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:42:22,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:42:22,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 472 transitions. [2024-11-08 17:42:22,962 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6900584795321637 [2024-11-08 17:42:22,963 INFO L175 Difference]: Start difference. First operand has 137 places, 170 transitions, 356 flow. Second operand 4 states and 472 transitions. [2024-11-08 17:42:22,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 201 transitions, 694 flow [2024-11-08 17:42:22,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 201 transitions, 694 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:42:22,972 INFO L231 Difference]: Finished difference. Result has 140 places, 140 transitions, 313 flow [2024-11-08 17:42:22,973 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=313, PETRI_PLACES=140, PETRI_TRANSITIONS=140} [2024-11-08 17:42:22,973 INFO L277 CegarLoopForPetriNet]: 137 programPoint places, 3 predicate places. [2024-11-08 17:42:22,974 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 140 transitions, 313 flow [2024-11-08 17:42:22,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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 17:42:22,974 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:42:22,974 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-08 17:42:22,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 17:42:22,975 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-08 17:42:22,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:42:22,976 INFO L85 PathProgramCache]: Analyzing trace with hash 24187245, now seen corresponding path program 1 times [2024-11-08 17:42:22,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:42:22,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581572205] [2024-11-08 17:42:22,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:42:22,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:42:22,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:42:23,034 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 17:42:23,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:42:23,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581572205] [2024-11-08 17:42:23,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581572205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:42:23,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:42:23,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:42:23,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184644408] [2024-11-08 17:42:23,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:42:23,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:42:23,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:42:23,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:42:23,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:42:23,044 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 171 [2024-11-08 17:42:23,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 140 transitions, 313 flow. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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 17:42:23,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:42:23,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 171 [2024-11-08 17:42:23,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:42:30,004 INFO L124 PetriNetUnfolderBase]: 30750/65720 cut-off events. [2024-11-08 17:42:30,004 INFO L125 PetriNetUnfolderBase]: For 824/824 co-relation queries the response was YES. [2024-11-08 17:42:30,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112460 conditions, 65720 events. 30750/65720 cut-off events. For 824/824 co-relation queries the response was YES. Maximal size of possible extension queue 2030. Compared 741670 event pairs, 27846 based on Foata normal form. 1/59716 useless extension candidates. Maximal degree in co-relation 55200. Up to 45456 conditions per place. [2024-11-08 17:42:30,532 INFO L140 encePairwiseOnDemand]: 168/171 looper letters, 68 selfloop transitions, 2 changer transitions 0/139 dead transitions. [2024-11-08 17:42:30,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 139 transitions, 451 flow [2024-11-08 17:42:30,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:42:30,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:42:30,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2024-11-08 17:42:30,536 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5458089668615984 [2024-11-08 17:42:30,537 INFO L175 Difference]: Start difference. First operand has 140 places, 140 transitions, 313 flow. Second operand 3 states and 280 transitions. [2024-11-08 17:42:30,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 139 transitions, 451 flow [2024-11-08 17:42:30,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 139 transitions, 446 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:42:30,551 INFO L231 Difference]: Finished difference. Result has 139 places, 139 transitions, 310 flow [2024-11-08 17:42:30,552 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=310, PETRI_PLACES=139, PETRI_TRANSITIONS=139} [2024-11-08 17:42:30,555 INFO L277 CegarLoopForPetriNet]: 137 programPoint places, 2 predicate places. [2024-11-08 17:42:30,556 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 139 transitions, 310 flow [2024-11-08 17:42:30,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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 17:42:30,558 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:42:30,558 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-08 17:42:30,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:42:30,559 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-08 17:42:30,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:42:30,561 INFO L85 PathProgramCache]: Analyzing trace with hash 749803054, now seen corresponding path program 1 times [2024-11-08 17:42:30,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:42:30,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832203562] [2024-11-08 17:42:30,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:42:30,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:42:30,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:42:30,669 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 17:42:30,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:42:30,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832203562] [2024-11-08 17:42:30,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832203562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:42:30,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:42:30,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:42:30,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413000722] [2024-11-08 17:42:30,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:42:30,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:42:30,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:42:30,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:42:30,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:42:30,683 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 171 [2024-11-08 17:42:30,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 139 transitions, 310 flow. Second operand has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 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 17:42:30,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:42:30,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 171 [2024-11-08 17:42:30,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:42:37,724 INFO L124 PetriNetUnfolderBase]: 30735/65385 cut-off events. [2024-11-08 17:42:37,725 INFO L125 PetriNetUnfolderBase]: For 824/824 co-relation queries the response was YES. [2024-11-08 17:42:37,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111763 conditions, 65385 events. 30735/65385 cut-off events. For 824/824 co-relation queries the response was YES. Maximal size of possible extension queue 2025. Compared 735411 event pairs, 27200 based on Foata normal form. 1/59435 useless extension candidates. Maximal degree in co-relation 56548. Up to 44063 conditions per place. [2024-11-08 17:42:38,162 INFO L140 encePairwiseOnDemand]: 164/171 looper letters, 96 selfloop transitions, 7 changer transitions 0/172 dead transitions. [2024-11-08 17:42:38,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 172 transitions, 582 flow [2024-11-08 17:42:38,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:42:38,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 17:42:38,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 453 transitions. [2024-11-08 17:42:38,165 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5298245614035088 [2024-11-08 17:42:38,166 INFO L175 Difference]: Start difference. First operand has 139 places, 139 transitions, 310 flow. Second operand 5 states and 453 transitions. [2024-11-08 17:42:38,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 172 transitions, 582 flow [2024-11-08 17:42:38,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 172 transitions, 578 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:42:38,172 INFO L231 Difference]: Finished difference. Result has 140 places, 138 transitions, 318 flow [2024-11-08 17:42:38,173 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=318, PETRI_PLACES=140, PETRI_TRANSITIONS=138} [2024-11-08 17:42:38,174 INFO L277 CegarLoopForPetriNet]: 137 programPoint places, 3 predicate places. [2024-11-08 17:42:38,174 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 138 transitions, 318 flow [2024-11-08 17:42:38,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 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 17:42:38,175 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:42:38,175 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-08 17:42:38,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 17:42:38,176 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-08 17:42:38,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:42:38,176 INFO L85 PathProgramCache]: Analyzing trace with hash 749805371, now seen corresponding path program 1 times [2024-11-08 17:42:38,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:42:38,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309411765] [2024-11-08 17:42:38,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:42:38,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:42:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:42:38,223 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 17:42:38,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:42:38,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309411765] [2024-11-08 17:42:38,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309411765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:42:38,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:42:38,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:42:38,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520583543] [2024-11-08 17:42:38,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:42:38,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:42:38,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:42:38,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:42:38,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:42:38,239 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 171 [2024-11-08 17:42:38,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 138 transitions, 318 flow. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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 17:42:38,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:42:38,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 171 [2024-11-08 17:42:38,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:42:44,734 INFO L124 PetriNetUnfolderBase]: 30750/65718 cut-off events. [2024-11-08 17:42:44,734 INFO L125 PetriNetUnfolderBase]: For 2136/2136 co-relation queries the response was YES. [2024-11-08 17:42:44,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112821 conditions, 65718 events. 30750/65718 cut-off events. For 2136/2136 co-relation queries the response was YES. Maximal size of possible extension queue 2030. Compared 741453 event pairs, 27846 based on Foata normal form. 1/59714 useless extension candidates. Maximal degree in co-relation 54117. Up to 45456 conditions per place. [2024-11-08 17:42:45,158 INFO L140 encePairwiseOnDemand]: 168/171 looper letters, 67 selfloop transitions, 2 changer transitions 0/137 dead transitions. [2024-11-08 17:42:45,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 137 transitions, 454 flow [2024-11-08 17:42:45,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:42:45,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:42:45,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 279 transitions. [2024-11-08 17:42:45,160 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.543859649122807 [2024-11-08 17:42:45,161 INFO L175 Difference]: Start difference. First operand has 140 places, 138 transitions, 318 flow. Second operand 3 states and 279 transitions. [2024-11-08 17:42:45,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 137 transitions, 454 flow [2024-11-08 17:42:45,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 137 transitions, 440 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-08 17:42:45,192 INFO L231 Difference]: Finished difference. Result has 137 places, 137 transitions, 306 flow [2024-11-08 17:42:45,192 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=306, PETRI_PLACES=137, PETRI_TRANSITIONS=137} [2024-11-08 17:42:45,193 INFO L277 CegarLoopForPetriNet]: 137 programPoint places, 0 predicate places. [2024-11-08 17:42:45,194 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 137 transitions, 306 flow [2024-11-08 17:42:45,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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 17:42:45,194 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:42:45,195 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:42:45,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 17:42:45,195 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-08 17:42:45,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:42:45,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1234165347, now seen corresponding path program 1 times [2024-11-08 17:42:45,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:42:45,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414999736] [2024-11-08 17:42:45,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:42:45,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:42:45,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:42:45,269 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 17:42:45,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:42:45,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414999736] [2024-11-08 17:42:45,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414999736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:42:45,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:42:45,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:42:45,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157340646] [2024-11-08 17:42:45,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:42:45,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:42:45,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:42:45,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:42:45,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:42:45,291 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 171 [2024-11-08 17:42:45,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 137 transitions, 306 flow. Second operand has 4 states, 4 states have (on average 68.25) internal successors, (273), 4 states have internal predecessors, (273), 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 17:42:45,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:42:45,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 171 [2024-11-08 17:42:45,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:42:53,436 INFO L124 PetriNetUnfolderBase]: 37414/76595 cut-off events. [2024-11-08 17:42:53,436 INFO L125 PetriNetUnfolderBase]: For 384/384 co-relation queries the response was YES. [2024-11-08 17:42:53,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132334 conditions, 76595 events. 37414/76595 cut-off events. For 384/384 co-relation queries the response was YES. Maximal size of possible extension queue 2087. Compared 843108 event pairs, 16371 based on Foata normal form. 38/68947 useless extension candidates. Maximal degree in co-relation 66882. Up to 54708 conditions per place. [2024-11-08 17:42:53,977 INFO L140 encePairwiseOnDemand]: 164/171 looper letters, 109 selfloop transitions, 3 changer transitions 0/174 dead transitions. [2024-11-08 17:42:53,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 174 transitions, 604 flow [2024-11-08 17:42:53,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:42:53,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:42:53,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 379 transitions. [2024-11-08 17:42:53,981 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.554093567251462 [2024-11-08 17:42:53,981 INFO L175 Difference]: Start difference. First operand has 137 places, 137 transitions, 306 flow. Second operand 4 states and 379 transitions. [2024-11-08 17:42:53,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 174 transitions, 604 flow [2024-11-08 17:42:53,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 174 transitions, 600 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:42:53,987 INFO L231 Difference]: Finished difference. Result has 140 places, 139 transitions, 328 flow [2024-11-08 17:42:53,987 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=328, PETRI_PLACES=140, PETRI_TRANSITIONS=139} [2024-11-08 17:42:53,988 INFO L277 CegarLoopForPetriNet]: 137 programPoint places, 3 predicate places. [2024-11-08 17:42:53,988 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 139 transitions, 328 flow [2024-11-08 17:42:53,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 68.25) internal successors, (273), 4 states have internal predecessors, (273), 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 17:42:53,989 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:42:53,989 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:42:53,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 17:42:53,990 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-08 17:42:53,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:42:53,991 INFO L85 PathProgramCache]: Analyzing trace with hash -996825363, now seen corresponding path program 1 times [2024-11-08 17:42:53,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:42:53,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043095193] [2024-11-08 17:42:53,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:42:53,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:42:54,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:42:54,158 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:42:54,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:42:54,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043095193] [2024-11-08 17:42:54,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043095193] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:42:54,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591803691] [2024-11-08 17:42:54,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:42:54,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:42:54,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be16303d-e320-47f2-908e-4c1cfadf8e5c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:42:54,164 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be16303d-e320-47f2-908e-4c1cfadf8e5c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:42:54,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be16303d-e320-47f2-908e-4c1cfadf8e5c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:42:54,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:42:54,334 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 17:42:54,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:42:54,459 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:42:54,460 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:42:54,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591803691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:42:54,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:42:54,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-08 17:42:54,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291935691] [2024-11-08 17:42:54,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:42:54,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:42:54,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:42:54,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:42:54,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:42:54,495 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 171 [2024-11-08 17:42:54,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 139 transitions, 328 flow. Second operand has 6 states, 6 states have (on average 68.16666666666667) internal successors, (409), 6 states have internal predecessors, (409), 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 17:42:54,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:42:54,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 171 [2024-11-08 17:42:54,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:43:01,180 INFO L124 PetriNetUnfolderBase]: 35553/69348 cut-off events. [2024-11-08 17:43:01,180 INFO L125 PetriNetUnfolderBase]: For 3424/3424 co-relation queries the response was YES. [2024-11-08 17:43:01,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125962 conditions, 69348 events. 35553/69348 cut-off events. For 3424/3424 co-relation queries the response was YES. Maximal size of possible extension queue 1979. Compared 738179 event pairs, 1764 based on Foata normal form. 648/64016 useless extension candidates. Maximal degree in co-relation 61239. Up to 40611 conditions per place.