./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread/triangular-longest-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/triangular-longest-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1 --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 81809963fcaff21fd6241cde97e522447f695a8b323a0a16c5a31b7f82b0f683 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 15:23:16,295 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 15:23:16,352 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-12-02 15:23:16,357 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 15:23:16,357 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 15:23:16,379 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 15:23:16,380 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 15:23:16,380 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 15:23:16,380 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 15:23:16,380 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 15:23:16,380 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 15:23:16,380 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 15:23:16,381 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 15:23:16,381 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 15:23:16,381 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 15:23:16,381 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 15:23:16,381 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 15:23:16,381 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 15:23:16,381 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 15:23:16,381 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 15:23:16,381 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 15:23:16,382 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 15:23:16,382 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 15:23:16,382 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 15:23:16,382 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 15:23:16,382 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 15:23:16,382 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 15:23:16,382 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 15:23:16,382 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 15:23:16,382 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 15:23:16,382 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 15:23:16,382 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:23:16,382 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:23:16,383 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:23:16,383 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:23:16,383 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 15:23:16,383 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:23:16,383 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:23:16,383 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:23:16,383 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:23:16,383 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 15:23:16,383 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 15:23:16,383 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 15:23:16,383 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 15:23:16,384 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 15:23:16,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 15:23:16,384 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 15:23:16,384 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 15:23:16,384 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 15:23:16,384 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 15:23:16,384 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1 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 -> 81809963fcaff21fd6241cde97e522447f695a8b323a0a16c5a31b7f82b0f683 [2024-12-02 15:23:16,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 15:23:16,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 15:23:16,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 15:23:16,623 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 15:23:16,623 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 15:23:16,625 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/pthread/triangular-longest-1.i [2024-12-02 15:23:19,278 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/data/bd1345df4/a235ff57cfa540a9a72e3f0bab1b3e8b/FLAG0d8bb8c90 [2024-12-02 15:23:19,514 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 15:23:19,515 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/sv-benchmarks/c/pthread/triangular-longest-1.i [2024-12-02 15:23:19,527 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/data/bd1345df4/a235ff57cfa540a9a72e3f0bab1b3e8b/FLAG0d8bb8c90 [2024-12-02 15:23:19,541 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/data/bd1345df4/a235ff57cfa540a9a72e3f0bab1b3e8b [2024-12-02 15:23:19,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 15:23:19,545 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 15:23:19,546 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 15:23:19,547 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 15:23:19,551 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 15:23:19,552 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:23:19" (1/1) ... [2024-12-02 15:23:19,552 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ff3c46e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:19, skipping insertion in model container [2024-12-02 15:23:19,553 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:23:19" (1/1) ... [2024-12-02 15:23:19,577 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 15:23:19,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:23:19,868 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 15:23:19,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:23:19,933 INFO L204 MainTranslator]: Completed translation [2024-12-02 15:23:19,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:19 WrapperNode [2024-12-02 15:23:19,934 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 15:23:19,935 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 15:23:19,935 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 15:23:19,935 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 15:23:19,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:19" (1/1) ... [2024-12-02 15:23:19,951 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:19" (1/1) ... [2024-12-02 15:23:19,965 INFO L138 Inliner]: procedures = 168, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 39 [2024-12-02 15:23:19,966 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 15:23:19,966 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 15:23:19,966 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 15:23:19,967 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 15:23:19,975 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:19" (1/1) ... [2024-12-02 15:23:19,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:19" (1/1) ... [2024-12-02 15:23:19,977 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:19" (1/1) ... [2024-12-02 15:23:19,989 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 15:23:19,990 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:19" (1/1) ... [2024-12-02 15:23:19,990 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:19" (1/1) ... [2024-12-02 15:23:19,994 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:19" (1/1) ... [2024-12-02 15:23:19,995 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:19" (1/1) ... [2024-12-02 15:23:19,997 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:19" (1/1) ... [2024-12-02 15:23:19,999 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:19" (1/1) ... [2024-12-02 15:23:20,000 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:19" (1/1) ... [2024-12-02 15:23:20,001 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 15:23:20,002 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 15:23:20,002 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 15:23:20,002 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 15:23:20,003 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:19" (1/1) ... [2024-12-02 15:23:20,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:23:20,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:23:20,032 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 15:23:20,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 15:23:20,055 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-12-02 15:23:20,055 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-12-02 15:23:20,055 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-12-02 15:23:20,055 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-12-02 15:23:20,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-12-02 15:23:20,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 15:23:20,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 15:23:20,056 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-12-02 15:23:20,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 15:23:20,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 15:23:20,057 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 15:23:20,156 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 15:23:20,158 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 15:23:20,284 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 15:23:20,285 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 15:23:20,364 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 15:23:20,365 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 15:23:20,365 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:23:20 BoogieIcfgContainer [2024-12-02 15:23:20,365 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 15:23:20,367 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 15:23:20,367 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 15:23:20,370 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 15:23:20,371 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:23:19" (1/3) ... [2024-12-02 15:23:20,371 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e802edd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:23:20, skipping insertion in model container [2024-12-02 15:23:20,371 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:19" (2/3) ... [2024-12-02 15:23:20,372 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e802edd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:23:20, skipping insertion in model container [2024-12-02 15:23:20,372 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:23:20" (3/3) ... [2024-12-02 15:23:20,373 INFO L128 eAbstractionObserver]: Analyzing ICFG triangular-longest-1.i [2024-12-02 15:23:20,383 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 15:23:20,384 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG triangular-longest-1.i that has 3 procedures, 31 locations, 1 initial locations, 2 loop locations, and 8 error locations. [2024-12-02 15:23:20,385 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 15:23:20,423 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-02 15:23:20,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 32 transitions, 72 flow [2024-12-02 15:23:20,474 INFO L124 PetriNetUnfolderBase]: 2/30 cut-off events. [2024-12-02 15:23:20,476 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 15:23:20,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 30 events. 2/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 73 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2024-12-02 15:23:20,479 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 32 transitions, 72 flow [2024-12-02 15:23:20,481 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 30 transitions, 66 flow [2024-12-02 15:23:20,488 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 15:23:20,498 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;@71315dea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 15:23:20,498 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-12-02 15:23:20,503 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 15:23:20,503 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2024-12-02 15:23:20,503 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 15:23:20,504 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:23:20,504 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 15:23:20,504 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-12-02 15:23:20,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:20,509 INFO L85 PathProgramCache]: Analyzing trace with hash 215557773, now seen corresponding path program 1 times [2024-12-02 15:23:20,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:20,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292538744] [2024-12-02 15:23:20,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:20,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:20,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:20,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:20,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:20,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292538744] [2024-12-02 15:23:20,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292538744] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:20,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:20,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-02 15:23:20,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609985893] [2024-12-02 15:23:20,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:20,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:23:20,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:20,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:23:20,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:23:20,726 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-12-02 15:23:20,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2024-12-02 15:23:20,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:23:20,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-12-02 15:23:20,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:23:20,892 INFO L124 PetriNetUnfolderBase]: 288/594 cut-off events. [2024-12-02 15:23:20,892 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 15:23:20,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1077 conditions, 594 events. 288/594 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3254 event pairs, 118 based on Foata normal form. 0/449 useless extension candidates. Maximal degree in co-relation 1067. Up to 241 conditions per place. [2024-12-02 15:23:20,899 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 27 selfloop transitions, 3 changer transitions 0/42 dead transitions. [2024-12-02 15:23:20,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 42 transitions, 150 flow [2024-12-02 15:23:20,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:23:20,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 15:23:20,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2024-12-02 15:23:20,910 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7604166666666666 [2024-12-02 15:23:20,911 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 66 flow. Second operand 3 states and 73 transitions. [2024-12-02 15:23:20,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 42 transitions, 150 flow [2024-12-02 15:23:20,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 42 transitions, 148 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 15:23:20,918 INFO L231 Difference]: Finished difference. Result has 37 places, 32 transitions, 86 flow [2024-12-02 15:23:20,919 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=37, PETRI_TRANSITIONS=32} [2024-12-02 15:23:20,922 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 2 predicate places. [2024-12-02 15:23:20,922 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 86 flow [2024-12-02 15:23:20,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2024-12-02 15:23:20,922 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:23:20,922 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 15:23:20,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 15:23:20,923 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-12-02 15:23:20,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:20,923 INFO L85 PathProgramCache]: Analyzing trace with hash 215557774, now seen corresponding path program 1 times [2024-12-02 15:23:20,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:20,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374489183] [2024-12-02 15:23:20,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:20,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:20,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:20,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:20,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:20,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374489183] [2024-12-02 15:23:20,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374489183] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:20,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:20,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-02 15:23:20,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950312011] [2024-12-02 15:23:20,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:20,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:23:20,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:20,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:23:20,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:23:20,975 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-12-02 15:23:20,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2024-12-02 15:23:20,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:23:20,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-12-02 15:23:20,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:23:21,100 INFO L124 PetriNetUnfolderBase]: 279/603 cut-off events. [2024-12-02 15:23:21,100 INFO L125 PetriNetUnfolderBase]: For 121/121 co-relation queries the response was YES. [2024-12-02 15:23:21,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1183 conditions, 603 events. 279/603 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3237 event pairs, 102 based on Foata normal form. 16/543 useless extension candidates. Maximal degree in co-relation 1171. Up to 266 conditions per place. [2024-12-02 15:23:21,105 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 27 selfloop transitions, 4 changer transitions 0/43 dead transitions. [2024-12-02 15:23:21,105 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 43 transitions, 174 flow [2024-12-02 15:23:21,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:23:21,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 15:23:21,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2024-12-02 15:23:21,107 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-12-02 15:23:21,107 INFO L175 Difference]: Start difference. First operand has 37 places, 32 transitions, 86 flow. Second operand 3 states and 72 transitions. [2024-12-02 15:23:21,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 43 transitions, 174 flow [2024-12-02 15:23:21,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 43 transitions, 166 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 15:23:21,109 INFO L231 Difference]: Finished difference. Result has 38 places, 33 transitions, 100 flow [2024-12-02 15:23:21,109 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=38, PETRI_TRANSITIONS=33} [2024-12-02 15:23:21,110 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 3 predicate places. [2024-12-02 15:23:21,110 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 33 transitions, 100 flow [2024-12-02 15:23:21,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2024-12-02 15:23:21,110 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:23:21,110 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:23:21,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 15:23:21,110 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-12-02 15:23:21,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:21,111 INFO L85 PathProgramCache]: Analyzing trace with hash 992598160, now seen corresponding path program 1 times [2024-12-02 15:23:21,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:21,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051224732] [2024-12-02 15:23:21,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:21,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:21,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:21,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:21,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:21,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051224732] [2024-12-02 15:23:21,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051224732] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:21,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:21,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:23:21,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190910144] [2024-12-02 15:23:21,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:21,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:23:21,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:21,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:23:21,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:23:21,193 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-12-02 15:23:21,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 33 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-12-02 15:23:21,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:23:21,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-12-02 15:23:21,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:23:21,414 INFO L124 PetriNetUnfolderBase]: 661/1353 cut-off events. [2024-12-02 15:23:21,414 INFO L125 PetriNetUnfolderBase]: For 426/426 co-relation queries the response was YES. [2024-12-02 15:23:21,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2778 conditions, 1353 events. 661/1353 cut-off events. For 426/426 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 8575 event pairs, 260 based on Foata normal form. 64/1246 useless extension candidates. Maximal degree in co-relation 2765. Up to 721 conditions per place. [2024-12-02 15:23:21,423 INFO L140 encePairwiseOnDemand]: 26/32 looper letters, 50 selfloop transitions, 3 changer transitions 0/62 dead transitions. [2024-12-02 15:23:21,423 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 62 transitions, 302 flow [2024-12-02 15:23:21,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:23:21,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 15:23:21,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 93 transitions. [2024-12-02 15:23:21,424 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7265625 [2024-12-02 15:23:21,424 INFO L175 Difference]: Start difference. First operand has 38 places, 33 transitions, 100 flow. Second operand 4 states and 93 transitions. [2024-12-02 15:23:21,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 62 transitions, 302 flow [2024-12-02 15:23:21,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 62 transitions, 294 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 15:23:21,427 INFO L231 Difference]: Finished difference. Result has 42 places, 35 transitions, 120 flow [2024-12-02 15:23:21,427 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=120, PETRI_PLACES=42, PETRI_TRANSITIONS=35} [2024-12-02 15:23:21,428 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 7 predicate places. [2024-12-02 15:23:21,428 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 35 transitions, 120 flow [2024-12-02 15:23:21,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-12-02 15:23:21,428 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:23:21,428 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:23:21,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 15:23:21,428 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-12-02 15:23:21,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:21,429 INFO L85 PathProgramCache]: Analyzing trace with hash 983160372, now seen corresponding path program 1 times [2024-12-02 15:23:21,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:21,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868821848] [2024-12-02 15:23:21,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:21,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:21,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:21,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:21,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:21,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868821848] [2024-12-02 15:23:21,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868821848] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:21,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:21,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-02 15:23:21,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695560789] [2024-12-02 15:23:21,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:21,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:23:21,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:21,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:23:21,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:23:21,474 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-12-02 15:23:21,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 35 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2024-12-02 15:23:21,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:23:21,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-12-02 15:23:21,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:23:21,610 INFO L124 PetriNetUnfolderBase]: 439/1038 cut-off events. [2024-12-02 15:23:21,610 INFO L125 PetriNetUnfolderBase]: For 456/456 co-relation queries the response was YES. [2024-12-02 15:23:21,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2337 conditions, 1038 events. 439/1038 cut-off events. For 456/456 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 6767 event pairs, 151 based on Foata normal form. 0/953 useless extension candidates. Maximal degree in co-relation 2322. Up to 459 conditions per place. [2024-12-02 15:23:21,617 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 37 selfloop transitions, 3 changer transitions 0/53 dead transitions. [2024-12-02 15:23:21,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 53 transitions, 267 flow [2024-12-02 15:23:21,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:23:21,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 15:23:21,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2024-12-02 15:23:21,618 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.78125 [2024-12-02 15:23:21,618 INFO L175 Difference]: Start difference. First operand has 42 places, 35 transitions, 120 flow. Second operand 3 states and 75 transitions. [2024-12-02 15:23:21,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 53 transitions, 267 flow [2024-12-02 15:23:21,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 53 transitions, 264 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 15:23:21,621 INFO L231 Difference]: Finished difference. Result has 45 places, 37 transitions, 140 flow [2024-12-02 15:23:21,621 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=45, PETRI_TRANSITIONS=37} [2024-12-02 15:23:21,621 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 10 predicate places. [2024-12-02 15:23:21,622 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 37 transitions, 140 flow [2024-12-02 15:23:21,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2024-12-02 15:23:21,622 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:23:21,622 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:23:21,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 15:23:21,622 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-12-02 15:23:21,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:21,622 INFO L85 PathProgramCache]: Analyzing trace with hash 983160373, now seen corresponding path program 1 times [2024-12-02 15:23:21,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:21,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208415539] [2024-12-02 15:23:21,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:21,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:21,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:21,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:21,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:21,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208415539] [2024-12-02 15:23:21,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208415539] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:21,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:21,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-02 15:23:21,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457833687] [2024-12-02 15:23:21,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:21,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:23:21,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:21,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:23:21,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:23:21,666 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-12-02 15:23:21,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 37 transitions, 140 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2024-12-02 15:23:21,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:23:21,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-12-02 15:23:21,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:23:21,801 INFO L124 PetriNetUnfolderBase]: 417/1020 cut-off events. [2024-12-02 15:23:21,801 INFO L125 PetriNetUnfolderBase]: For 611/611 co-relation queries the response was YES. [2024-12-02 15:23:21,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2460 conditions, 1020 events. 417/1020 cut-off events. For 611/611 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 6680 event pairs, 117 based on Foata normal form. 20/997 useless extension candidates. Maximal degree in co-relation 2442. Up to 483 conditions per place. [2024-12-02 15:23:21,808 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 37 selfloop transitions, 4 changer transitions 0/54 dead transitions. [2024-12-02 15:23:21,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 54 transitions, 290 flow [2024-12-02 15:23:21,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:23:21,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 15:23:21,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2024-12-02 15:23:21,809 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7708333333333334 [2024-12-02 15:23:21,809 INFO L175 Difference]: Start difference. First operand has 45 places, 37 transitions, 140 flow. Second operand 3 states and 74 transitions. [2024-12-02 15:23:21,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 54 transitions, 290 flow [2024-12-02 15:23:21,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 54 transitions, 282 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 15:23:21,812 INFO L231 Difference]: Finished difference. Result has 46 places, 38 transitions, 154 flow [2024-12-02 15:23:21,812 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=46, PETRI_TRANSITIONS=38} [2024-12-02 15:23:21,813 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 11 predicate places. [2024-12-02 15:23:21,813 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 38 transitions, 154 flow [2024-12-02 15:23:21,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2024-12-02 15:23:21,813 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:23:21,813 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:23:21,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 15:23:21,814 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-12-02 15:23:21,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:21,814 INFO L85 PathProgramCache]: Analyzing trace with hash -75678761, now seen corresponding path program 1 times [2024-12-02 15:23:21,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:21,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204964025] [2024-12-02 15:23:21,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:21,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:21,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:21,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:21,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204964025] [2024-12-02 15:23:21,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204964025] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:21,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:21,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:23:21,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294707146] [2024-12-02 15:23:21,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:21,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:23:21,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:21,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:23:21,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:23:21,869 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-12-02 15:23:21,869 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 38 transitions, 154 flow. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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) [2024-12-02 15:23:21,869 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:23:21,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-12-02 15:23:21,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:23:22,092 INFO L124 PetriNetUnfolderBase]: 661/1395 cut-off events. [2024-12-02 15:23:22,092 INFO L125 PetriNetUnfolderBase]: For 1059/1175 co-relation queries the response was YES. [2024-12-02 15:23:22,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3420 conditions, 1395 events. 661/1395 cut-off events. For 1059/1175 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 9434 event pairs, 378 based on Foata normal form. 87/1385 useless extension candidates. Maximal degree in co-relation 3401. Up to 853 conditions per place. [2024-12-02 15:23:22,102 INFO L140 encePairwiseOnDemand]: 26/32 looper letters, 51 selfloop transitions, 3 changer transitions 0/64 dead transitions. [2024-12-02 15:23:22,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 64 transitions, 376 flow [2024-12-02 15:23:22,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:23:22,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 15:23:22,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 89 transitions. [2024-12-02 15:23:22,103 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6953125 [2024-12-02 15:23:22,104 INFO L175 Difference]: Start difference. First operand has 46 places, 38 transitions, 154 flow. Second operand 4 states and 89 transitions. [2024-12-02 15:23:22,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 64 transitions, 376 flow [2024-12-02 15:23:22,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 64 transitions, 368 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 15:23:22,106 INFO L231 Difference]: Finished difference. Result has 50 places, 40 transitions, 174 flow [2024-12-02 15:23:22,107 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=174, PETRI_PLACES=50, PETRI_TRANSITIONS=40} [2024-12-02 15:23:22,107 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 15 predicate places. [2024-12-02 15:23:22,108 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 40 transitions, 174 flow [2024-12-02 15:23:22,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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) [2024-12-02 15:23:22,108 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:23:22,108 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:23:22,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 15:23:22,108 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-12-02 15:23:22,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:22,109 INFO L85 PathProgramCache]: Analyzing trace with hash 943676385, now seen corresponding path program 1 times [2024-12-02 15:23:22,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:22,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870987356] [2024-12-02 15:23:22,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:22,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:22,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:22,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:22,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:22,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870987356] [2024-12-02 15:23:22,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870987356] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:22,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:22,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 15:23:22,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226334987] [2024-12-02 15:23:22,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:22,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:23:22,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:22,156 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:23:22,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:23:22,163 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-12-02 15:23:22,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 40 transitions, 174 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:23:22,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:23:22,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-12-02 15:23:22,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:23:22,409 INFO L124 PetriNetUnfolderBase]: 567/1347 cut-off events. [2024-12-02 15:23:22,409 INFO L125 PetriNetUnfolderBase]: For 1110/1208 co-relation queries the response was YES. [2024-12-02 15:23:22,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3581 conditions, 1347 events. 567/1347 cut-off events. For 1110/1208 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 9478 event pairs, 109 based on Foata normal form. 69/1383 useless extension candidates. Maximal degree in co-relation 3560. Up to 384 conditions per place. [2024-12-02 15:23:22,421 INFO L140 encePairwiseOnDemand]: 26/32 looper letters, 50 selfloop transitions, 11 changer transitions 0/75 dead transitions. [2024-12-02 15:23:22,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 75 transitions, 449 flow [2024-12-02 15:23:22,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:23:22,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 15:23:22,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 118 transitions. [2024-12-02 15:23:22,423 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7375 [2024-12-02 15:23:22,423 INFO L175 Difference]: Start difference. First operand has 50 places, 40 transitions, 174 flow. Second operand 5 states and 118 transitions. [2024-12-02 15:23:22,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 75 transitions, 449 flow [2024-12-02 15:23:22,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 75 transitions, 444 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 15:23:22,427 INFO L231 Difference]: Finished difference. Result has 57 places, 47 transitions, 272 flow [2024-12-02 15:23:22,427 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=272, PETRI_PLACES=57, PETRI_TRANSITIONS=47} [2024-12-02 15:23:22,427 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 22 predicate places. [2024-12-02 15:23:22,428 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 47 transitions, 272 flow [2024-12-02 15:23:22,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:23:22,428 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:23:22,428 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:23:22,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 15:23:22,428 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-12-02 15:23:22,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:22,429 INFO L85 PathProgramCache]: Analyzing trace with hash 943676384, now seen corresponding path program 1 times [2024-12-02 15:23:22,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:22,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266962232] [2024-12-02 15:23:22,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:22,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:22,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:22,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:22,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:22,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266962232] [2024-12-02 15:23:22,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266962232] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:22,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:22,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 15:23:22,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254971785] [2024-12-02 15:23:22,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:22,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:23:22,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:22,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:23:22,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:23:22,485 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-12-02 15:23:22,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 47 transitions, 272 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:23:22,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:23:22,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-12-02 15:23:22,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:23:22,754 INFO L124 PetriNetUnfolderBase]: 608/1479 cut-off events. [2024-12-02 15:23:22,754 INFO L125 PetriNetUnfolderBase]: For 2569/2673 co-relation queries the response was YES. [2024-12-02 15:23:22,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4153 conditions, 1479 events. 608/1479 cut-off events. For 2569/2673 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 10614 event pairs, 156 based on Foata normal form. 110/1532 useless extension candidates. Maximal degree in co-relation 4127. Up to 469 conditions per place. [2024-12-02 15:23:22,767 INFO L140 encePairwiseOnDemand]: 25/32 looper letters, 55 selfloop transitions, 9 changer transitions 0/78 dead transitions. [2024-12-02 15:23:22,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 78 transitions, 536 flow [2024-12-02 15:23:22,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:23:22,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 15:23:22,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 119 transitions. [2024-12-02 15:23:22,769 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.74375 [2024-12-02 15:23:22,769 INFO L175 Difference]: Start difference. First operand has 57 places, 47 transitions, 272 flow. Second operand 5 states and 119 transitions. [2024-12-02 15:23:22,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 78 transitions, 536 flow [2024-12-02 15:23:22,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 78 transitions, 513 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-12-02 15:23:22,776 INFO L231 Difference]: Finished difference. Result has 61 places, 52 transitions, 327 flow [2024-12-02 15:23:22,776 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=327, PETRI_PLACES=61, PETRI_TRANSITIONS=52} [2024-12-02 15:23:22,776 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 26 predicate places. [2024-12-02 15:23:22,777 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 52 transitions, 327 flow [2024-12-02 15:23:22,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:23:22,777 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:23:22,777 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:23:22,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 15:23:22,777 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-12-02 15:23:22,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:22,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1635934304, now seen corresponding path program 1 times [2024-12-02 15:23:22,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:22,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034915677] [2024-12-02 15:23:22,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:22,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:22,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:22,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:22,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034915677] [2024-12-02 15:23:22,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034915677] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:22,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:22,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 15:23:22,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711101982] [2024-12-02 15:23:22,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:22,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:23:22,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:22,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:23:22,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:23:22,830 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-12-02 15:23:22,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 52 transitions, 327 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:23:22,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:23:22,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-12-02 15:23:22,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:23:22,991 INFO L124 PetriNetUnfolderBase]: 503/1165 cut-off events. [2024-12-02 15:23:22,991 INFO L125 PetriNetUnfolderBase]: For 2270/2415 co-relation queries the response was YES. [2024-12-02 15:23:22,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3348 conditions, 1165 events. 503/1165 cut-off events. For 2270/2415 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 7577 event pairs, 378 based on Foata normal form. 98/1186 useless extension candidates. Maximal degree in co-relation 3320. Up to 846 conditions per place. [2024-12-02 15:23:23,000 INFO L140 encePairwiseOnDemand]: 29/32 looper letters, 30 selfloop transitions, 1 changer transitions 0/45 dead transitions. [2024-12-02 15:23:23,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 45 transitions, 326 flow [2024-12-02 15:23:23,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:23:23,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 15:23:23,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2024-12-02 15:23:23,001 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-12-02 15:23:23,001 INFO L175 Difference]: Start difference. First operand has 61 places, 52 transitions, 327 flow. Second operand 3 states and 60 transitions. [2024-12-02 15:23:23,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 45 transitions, 326 flow [2024-12-02 15:23:23,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 45 transitions, 310 flow, removed 5 selfloop flow, removed 2 redundant places. [2024-12-02 15:23:23,006 INFO L231 Difference]: Finished difference. Result has 58 places, 45 transitions, 250 flow [2024-12-02 15:23:23,006 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=58, PETRI_TRANSITIONS=45} [2024-12-02 15:23:23,007 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 23 predicate places. [2024-12-02 15:23:23,007 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 45 transitions, 250 flow [2024-12-02 15:23:23,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:23:23,007 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:23:23,007 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:23:23,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 15:23:23,007 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-12-02 15:23:23,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:23,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1635934305, now seen corresponding path program 1 times [2024-12-02 15:23:23,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:23,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277707041] [2024-12-02 15:23:23,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:23,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:23,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:23,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:23,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:23,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277707041] [2024-12-02 15:23:23,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277707041] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:23,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:23,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 15:23:23,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238630274] [2024-12-02 15:23:23,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:23,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:23:23,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:23,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:23:23,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:23:23,050 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-12-02 15:23:23,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 45 transitions, 250 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:23:23,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:23:23,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-12-02 15:23:23,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:23:23,237 INFO L124 PetriNetUnfolderBase]: 558/1374 cut-off events. [2024-12-02 15:23:23,237 INFO L125 PetriNetUnfolderBase]: For 1570/1681 co-relation queries the response was YES. [2024-12-02 15:23:23,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3699 conditions, 1374 events. 558/1374 cut-off events. For 1570/1681 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 9464 event pairs, 119 based on Foata normal form. 66/1395 useless extension candidates. Maximal degree in co-relation 3675. Up to 674 conditions per place. [2024-12-02 15:23:23,246 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 50 selfloop transitions, 5 changer transitions 0/69 dead transitions. [2024-12-02 15:23:23,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 69 transitions, 452 flow [2024-12-02 15:23:23,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:23:23,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 15:23:23,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 111 transitions. [2024-12-02 15:23:23,247 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.69375 [2024-12-02 15:23:23,247 INFO L175 Difference]: Start difference. First operand has 58 places, 45 transitions, 250 flow. Second operand 5 states and 111 transitions. [2024-12-02 15:23:23,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 69 transitions, 452 flow [2024-12-02 15:23:23,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 69 transitions, 447 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-12-02 15:23:23,251 INFO L231 Difference]: Finished difference. Result has 63 places, 46 transitions, 271 flow [2024-12-02 15:23:23,252 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=271, PETRI_PLACES=63, PETRI_TRANSITIONS=46} [2024-12-02 15:23:23,252 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 28 predicate places. [2024-12-02 15:23:23,252 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 46 transitions, 271 flow [2024-12-02 15:23:23,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:23:23,252 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:23:23,253 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-12-02 15:23:23,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 15:23:23,253 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-12-02 15:23:23,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:23,253 INFO L85 PathProgramCache]: Analyzing trace with hash -258368570, now seen corresponding path program 1 times [2024-12-02 15:23:23,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:23,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347263095] [2024-12-02 15:23:23,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:23,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:23,313 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:23,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:23,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347263095] [2024-12-02 15:23:23,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347263095] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:23:23,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039851992] [2024-12-02 15:23:23,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:23,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:23:23,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:23:23,316 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:23:23,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 15:23:23,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:23,370 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 15:23:23,374 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:23:23,438 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:23,438 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:23:23,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039851992] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:23,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:23:23,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-12-02 15:23:23,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443259247] [2024-12-02 15:23:23,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:23,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:23:23,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:23,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:23:23,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:23:23,447 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 32 [2024-12-02 15:23:23,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 46 transitions, 271 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-12-02 15:23:23,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:23:23,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 32 [2024-12-02 15:23:23,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:23:23,712 INFO L124 PetriNetUnfolderBase]: 1036/2005 cut-off events. [2024-12-02 15:23:23,712 INFO L125 PetriNetUnfolderBase]: For 2674/2819 co-relation queries the response was YES. [2024-12-02 15:23:23,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5809 conditions, 2005 events. 1036/2005 cut-off events. For 2674/2819 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 13195 event pairs, 145 based on Foata normal form. 122/2005 useless extension candidates. Maximal degree in co-relation 5782. Up to 785 conditions per place. [2024-12-02 15:23:23,726 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 57 selfloop transitions, 6 changer transitions 0/72 dead transitions. [2024-12-02 15:23:23,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 72 transitions, 546 flow [2024-12-02 15:23:23,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:23:23,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 15:23:23,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 78 transitions. [2024-12-02 15:23:23,728 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.609375 [2024-12-02 15:23:23,728 INFO L175 Difference]: Start difference. First operand has 63 places, 46 transitions, 271 flow. Second operand 4 states and 78 transitions. [2024-12-02 15:23:23,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 72 transitions, 546 flow [2024-12-02 15:23:23,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 72 transitions, 532 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-12-02 15:23:23,734 INFO L231 Difference]: Finished difference. Result has 63 places, 45 transitions, 271 flow [2024-12-02 15:23:23,734 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=271, PETRI_PLACES=63, PETRI_TRANSITIONS=45} [2024-12-02 15:23:23,735 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 28 predicate places. [2024-12-02 15:23:23,735 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 45 transitions, 271 flow [2024-12-02 15:23:23,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-12-02 15:23:23,735 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:23:23,735 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-12-02 15:23:23,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 15:23:23,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:23:23,936 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-12-02 15:23:23,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:23,936 INFO L85 PathProgramCache]: Analyzing trace with hash 580509162, now seen corresponding path program 1 times [2024-12-02 15:23:23,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:23,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604856039] [2024-12-02 15:23:23,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:23,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:23,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:23,970 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 15:23:23,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:23,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604856039] [2024-12-02 15:23:23,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604856039] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:23,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:23,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:23:23,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243238971] [2024-12-02 15:23:23,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:23,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:23:23,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:23,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:23:23,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:23:23,977 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 32 [2024-12-02 15:23:23,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 45 transitions, 271 flow. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2024-12-02 15:23:23,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:23:23,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 32 [2024-12-02 15:23:23,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:23:24,202 INFO L124 PetriNetUnfolderBase]: 883/1891 cut-off events. [2024-12-02 15:23:24,203 INFO L125 PetriNetUnfolderBase]: For 2880/2961 co-relation queries the response was YES. [2024-12-02 15:23:24,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5560 conditions, 1891 events. 883/1891 cut-off events. For 2880/2961 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 12767 event pairs, 246 based on Foata normal form. 108/1971 useless extension candidates. Maximal degree in co-relation 5534. Up to 726 conditions per place. [2024-12-02 15:23:24,215 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 57 selfloop transitions, 6 changer transitions 0/72 dead transitions. [2024-12-02 15:23:24,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 72 transitions, 542 flow [2024-12-02 15:23:24,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:23:24,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 15:23:24,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 78 transitions. [2024-12-02 15:23:24,216 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.609375 [2024-12-02 15:23:24,216 INFO L175 Difference]: Start difference. First operand has 63 places, 45 transitions, 271 flow. Second operand 4 states and 78 transitions. [2024-12-02 15:23:24,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 72 transitions, 542 flow [2024-12-02 15:23:24,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 72 transitions, 530 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-12-02 15:23:24,223 INFO L231 Difference]: Finished difference. Result has 63 places, 45 transitions, 275 flow [2024-12-02 15:23:24,223 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=275, PETRI_PLACES=63, PETRI_TRANSITIONS=45} [2024-12-02 15:23:24,224 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 28 predicate places. [2024-12-02 15:23:24,224 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 45 transitions, 275 flow [2024-12-02 15:23:24,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2024-12-02 15:23:24,224 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:23:24,224 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:23:24,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 15:23:24,224 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-12-02 15:23:24,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:24,225 INFO L85 PathProgramCache]: Analyzing trace with hash -709600726, now seen corresponding path program 1 times [2024-12-02 15:23:24,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:24,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55096253] [2024-12-02 15:23:24,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:24,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:24,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:24,292 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:24,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:24,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55096253] [2024-12-02 15:23:24,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55096253] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:23:24,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787499496] [2024-12-02 15:23:24,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:24,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:23:24,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:23:24,295 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:23:24,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 15:23:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:24,349 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 15:23:24,350 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:23:24,385 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:24,385 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:23:24,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787499496] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:24,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:23:24,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-12-02 15:23:24,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640248619] [2024-12-02 15:23:24,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:24,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:23:24,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:24,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:23:24,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:23:24,400 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-12-02 15:23:24,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 45 transitions, 275 flow. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 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) [2024-12-02 15:23:24,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:23:24,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-12-02 15:23:24,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:23:24,651 INFO L124 PetriNetUnfolderBase]: 845/1729 cut-off events. [2024-12-02 15:23:24,651 INFO L125 PetriNetUnfolderBase]: For 3344/3398 co-relation queries the response was YES. [2024-12-02 15:23:24,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5204 conditions, 1729 events. 845/1729 cut-off events. For 3344/3398 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 11359 event pairs, 70 based on Foata normal form. 123/1774 useless extension candidates. Maximal degree in co-relation 5178. Up to 562 conditions per place. [2024-12-02 15:23:24,659 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 71 selfloop transitions, 6 changer transitions 1/87 dead transitions. [2024-12-02 15:23:24,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 87 transitions, 690 flow [2024-12-02 15:23:24,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:23:24,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 15:23:24,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 116 transitions. [2024-12-02 15:23:24,661 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6041666666666666 [2024-12-02 15:23:24,661 INFO L175 Difference]: Start difference. First operand has 63 places, 45 transitions, 275 flow. Second operand 6 states and 116 transitions. [2024-12-02 15:23:24,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 87 transitions, 690 flow [2024-12-02 15:23:24,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 87 transitions, 670 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 15:23:24,665 INFO L231 Difference]: Finished difference. Result has 65 places, 44 transitions, 275 flow [2024-12-02 15:23:24,665 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=275, PETRI_PLACES=65, PETRI_TRANSITIONS=44} [2024-12-02 15:23:24,666 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 30 predicate places. [2024-12-02 15:23:24,666 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 44 transitions, 275 flow [2024-12-02 15:23:24,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 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) [2024-12-02 15:23:24,667 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:23:24,667 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:23:24,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 15:23:24,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-02 15:23:24,867 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-12-02 15:23:24,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:24,868 INFO L85 PathProgramCache]: Analyzing trace with hash 846307153, now seen corresponding path program 1 times [2024-12-02 15:23:24,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:24,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101831064] [2024-12-02 15:23:24,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:24,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:24,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:24,904 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:24,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:24,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101831064] [2024-12-02 15:23:24,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101831064] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:23:24,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821012032] [2024-12-02 15:23:24,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:24,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:23:24,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:23:24,906 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:23:24,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 15:23:24,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:24,957 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 15:23:24,958 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:23:24,985 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:24,985 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:23:25,039 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:25,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821012032] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:23:25,039 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:23:25,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-12-02 15:23:25,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747903459] [2024-12-02 15:23:25,039 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:23:25,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 15:23:25,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:25,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 15:23:25,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:23:25,054 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-12-02 15:23:25,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 44 transitions, 275 flow. Second operand has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 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) [2024-12-02 15:23:25,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:23:25,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-12-02 15:23:25,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:23:25,255 INFO L124 PetriNetUnfolderBase]: 747/1715 cut-off events. [2024-12-02 15:23:25,255 INFO L125 PetriNetUnfolderBase]: For 3695/3743 co-relation queries the response was YES. [2024-12-02 15:23:25,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5259 conditions, 1715 events. 747/1715 cut-off events. For 3695/3743 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 10739 event pairs, 71 based on Foata normal form. 135/1829 useless extension candidates. Maximal degree in co-relation 5232. Up to 289 conditions per place. [2024-12-02 15:23:25,262 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 61 selfloop transitions, 12 changer transitions 4/89 dead transitions. [2024-12-02 15:23:25,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 89 transitions, 659 flow [2024-12-02 15:23:25,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:23:25,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-12-02 15:23:25,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 160 transitions. [2024-12-02 15:23:25,264 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-12-02 15:23:25,264 INFO L175 Difference]: Start difference. First operand has 65 places, 44 transitions, 275 flow. Second operand 7 states and 160 transitions. [2024-12-02 15:23:25,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 89 transitions, 659 flow [2024-12-02 15:23:25,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 89 transitions, 632 flow, removed 7 selfloop flow, removed 4 redundant places. [2024-12-02 15:23:25,269 INFO L231 Difference]: Finished difference. Result has 72 places, 50 transitions, 379 flow [2024-12-02 15:23:25,269 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=379, PETRI_PLACES=72, PETRI_TRANSITIONS=50} [2024-12-02 15:23:25,270 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 37 predicate places. [2024-12-02 15:23:25,270 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 50 transitions, 379 flow [2024-12-02 15:23:25,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 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) [2024-12-02 15:23:25,270 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:23:25,270 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:23:25,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 15:23:25,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:23:25,471 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-12-02 15:23:25,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:25,471 INFO L85 PathProgramCache]: Analyzing trace with hash -522785775, now seen corresponding path program 1 times [2024-12-02 15:23:25,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:25,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290907080] [2024-12-02 15:23:25,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:25,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:25,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:25,496 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 15:23:25,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:25,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290907080] [2024-12-02 15:23:25,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290907080] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:25,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:25,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:23:25,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55652148] [2024-12-02 15:23:25,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:25,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:23:25,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:25,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:23:25,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:23:25,502 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 32 [2024-12-02 15:23:25,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 50 transitions, 379 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-12-02 15:23:25,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:23:25,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 32 [2024-12-02 15:23:25,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:23:25,731 INFO L124 PetriNetUnfolderBase]: 1190/2277 cut-off events. [2024-12-02 15:23:25,731 INFO L125 PetriNetUnfolderBase]: For 5977/6022 co-relation queries the response was YES. [2024-12-02 15:23:25,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7527 conditions, 2277 events. 1190/2277 cut-off events. For 5977/6022 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 13653 event pairs, 275 based on Foata normal form. 153/2388 useless extension candidates. Maximal degree in co-relation 7495. Up to 893 conditions per place. [2024-12-02 15:23:25,739 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 63 selfloop transitions, 6 changer transitions 0/77 dead transitions. [2024-12-02 15:23:25,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 77 transitions, 744 flow [2024-12-02 15:23:25,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:23:25,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 15:23:25,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 74 transitions. [2024-12-02 15:23:25,740 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.578125 [2024-12-02 15:23:25,740 INFO L175 Difference]: Start difference. First operand has 72 places, 50 transitions, 379 flow. Second operand 4 states and 74 transitions. [2024-12-02 15:23:25,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 77 transitions, 744 flow [2024-12-02 15:23:25,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 77 transitions, 709 flow, removed 11 selfloop flow, removed 3 redundant places. [2024-12-02 15:23:25,747 INFO L231 Difference]: Finished difference. Result has 72 places, 50 transitions, 372 flow [2024-12-02 15:23:25,747 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=372, PETRI_PLACES=72, PETRI_TRANSITIONS=50} [2024-12-02 15:23:25,748 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 37 predicate places. [2024-12-02 15:23:25,748 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 50 transitions, 372 flow [2024-12-02 15:23:25,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-12-02 15:23:25,748 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:23:25,748 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:23:25,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 15:23:25,748 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-12-02 15:23:25,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:25,749 INFO L85 PathProgramCache]: Analyzing trace with hash 598164469, now seen corresponding path program 1 times [2024-12-02 15:23:25,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:25,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805818573] [2024-12-02 15:23:25,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:25,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:25,805 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:25,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:25,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805818573] [2024-12-02 15:23:25,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805818573] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:23:25,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67147783] [2024-12-02 15:23:25,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:25,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:23:25,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:23:25,807 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:23:25,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 15:23:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:25,861 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 15:23:25,862 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:23:25,908 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:25,908 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:23:25,982 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:25,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67147783] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:23:25,983 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:23:25,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-12-02 15:23:25,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688779858] [2024-12-02 15:23:25,983 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:23:25,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 15:23:25,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:25,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 15:23:25,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-12-02 15:23:26,000 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-12-02 15:23:26,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 50 transitions, 372 flow. Second operand has 12 states, 12 states have (on average 16.333333333333332) internal successors, (196), 12 states have internal predecessors, (196), 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) [2024-12-02 15:23:26,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:23:26,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-12-02 15:23:26,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:23:26,351 INFO L124 PetriNetUnfolderBase]: 972/2189 cut-off events. [2024-12-02 15:23:26,352 INFO L125 PetriNetUnfolderBase]: For 7758/7776 co-relation queries the response was YES. [2024-12-02 15:23:26,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7037 conditions, 2189 events. 972/2189 cut-off events. For 7758/7776 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 13038 event pairs, 35 based on Foata normal form. 120/2306 useless extension candidates. Maximal degree in co-relation 7006. Up to 277 conditions per place. [2024-12-02 15:23:26,358 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 78 selfloop transitions, 17 changer transitions 17/124 dead transitions. [2024-12-02 15:23:26,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 124 transitions, 948 flow [2024-12-02 15:23:26,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 15:23:26,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-12-02 15:23:26,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 270 transitions. [2024-12-02 15:23:26,360 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.703125 [2024-12-02 15:23:26,360 INFO L175 Difference]: Start difference. First operand has 72 places, 50 transitions, 372 flow. Second operand 12 states and 270 transitions. [2024-12-02 15:23:26,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 124 transitions, 948 flow [2024-12-02 15:23:26,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 124 transitions, 911 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-12-02 15:23:26,368 INFO L231 Difference]: Finished difference. Result has 87 places, 52 transitions, 429 flow [2024-12-02 15:23:26,368 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=429, PETRI_PLACES=87, PETRI_TRANSITIONS=52} [2024-12-02 15:23:26,368 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 52 predicate places. [2024-12-02 15:23:26,368 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 52 transitions, 429 flow [2024-12-02 15:23:26,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 16.333333333333332) internal successors, (196), 12 states have internal predecessors, (196), 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) [2024-12-02 15:23:26,369 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:23:26,369 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:23:26,374 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 15:23:26,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-12-02 15:23:26,569 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-12-02 15:23:26,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:26,570 INFO L85 PathProgramCache]: Analyzing trace with hash 575826811, now seen corresponding path program 1 times [2024-12-02 15:23:26,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:26,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525201090] [2024-12-02 15:23:26,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:26,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:26,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:26,664 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:26,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:26,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525201090] [2024-12-02 15:23:26,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525201090] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:23:26,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011666646] [2024-12-02 15:23:26,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:26,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:23:26,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:23:26,666 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:23:26,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 15:23:26,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:26,722 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 15:23:26,723 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:23:26,780 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:26,780 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:23:26,888 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:26,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011666646] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:23:26,889 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:23:26,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2024-12-02 15:23:26,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040347754] [2024-12-02 15:23:26,889 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:23:26,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 15:23:26,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:26,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 15:23:26,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-12-02 15:23:26,912 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-12-02 15:23:26,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 52 transitions, 429 flow. Second operand has 16 states, 16 states have (on average 16.25) internal successors, (260), 16 states have internal predecessors, (260), 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) [2024-12-02 15:23:26,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:23:26,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-12-02 15:23:26,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:23:27,412 INFO L124 PetriNetUnfolderBase]: 1422/3164 cut-off events. [2024-12-02 15:23:27,413 INFO L125 PetriNetUnfolderBase]: For 11637/11661 co-relation queries the response was YES. [2024-12-02 15:23:27,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10146 conditions, 3164 events. 1422/3164 cut-off events. For 11637/11661 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 19030 event pairs, 71 based on Foata normal form. 114/3263 useless extension candidates. Maximal degree in co-relation 10107. Up to 391 conditions per place. [2024-12-02 15:23:27,422 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 92 selfloop transitions, 24 changer transitions 25/153 dead transitions. [2024-12-02 15:23:27,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 153 transitions, 1224 flow [2024-12-02 15:23:27,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 15:23:27,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-12-02 15:23:27,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 336 transitions. [2024-12-02 15:23:27,423 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7 [2024-12-02 15:23:27,423 INFO L175 Difference]: Start difference. First operand has 87 places, 52 transitions, 429 flow. Second operand 15 states and 336 transitions. [2024-12-02 15:23:27,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 153 transitions, 1224 flow [2024-12-02 15:23:27,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 153 transitions, 1211 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-12-02 15:23:27,433 INFO L231 Difference]: Finished difference. Result has 105 places, 60 transitions, 580 flow [2024-12-02 15:23:27,433 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=580, PETRI_PLACES=105, PETRI_TRANSITIONS=60} [2024-12-02 15:23:27,433 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 70 predicate places. [2024-12-02 15:23:27,433 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 60 transitions, 580 flow [2024-12-02 15:23:27,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 16.25) internal successors, (260), 16 states have internal predecessors, (260), 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) [2024-12-02 15:23:27,433 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:23:27,433 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:23:27,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 15:23:27,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:23:27,634 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-12-02 15:23:27,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:27,634 INFO L85 PathProgramCache]: Analyzing trace with hash -994602925, now seen corresponding path program 2 times [2024-12-02 15:23:27,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:27,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665266194] [2024-12-02 15:23:27,635 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 15:23:27,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:27,656 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 15:23:27,656 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:23:27,890 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:27,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:27,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665266194] [2024-12-02 15:23:27,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665266194] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:23:27,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604262986] [2024-12-02 15:23:27,890 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 15:23:27,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:23:27,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:23:27,892 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:23:27,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 15:23:27,958 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 15:23:27,958 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:23:27,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 15:23:27,961 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:23:28,054 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:28,054 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:23:28,292 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:28,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604262986] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:23:28,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:23:28,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 26 [2024-12-02 15:23:28,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971054137] [2024-12-02 15:23:28,292 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:23:28,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-02 15:23:28,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:28,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-02 15:23:28,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=546, Unknown=0, NotChecked=0, Total=756 [2024-12-02 15:23:28,335 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-12-02 15:23:28,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 60 transitions, 580 flow. Second operand has 28 states, 28 states have (on average 16.142857142857142) internal successors, (452), 28 states have internal predecessors, (452), 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) [2024-12-02 15:23:28,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:23:28,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-12-02 15:23:28,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:23:29,487 INFO L124 PetriNetUnfolderBase]: 2412/5357 cut-off events. [2024-12-02 15:23:29,488 INFO L125 PetriNetUnfolderBase]: For 29075/29093 co-relation queries the response was YES. [2024-12-02 15:23:29,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17432 conditions, 5357 events. 2412/5357 cut-off events. For 29075/29093 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 31949 event pairs, 35 based on Foata normal form. 216/5570 useless extension candidates. Maximal degree in co-relation 17385. Up to 709 conditions per place. [2024-12-02 15:23:29,512 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 158 selfloop transitions, 41 changer transitions 49/260 dead transitions. [2024-12-02 15:23:29,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 260 transitions, 2119 flow [2024-12-02 15:23:29,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-12-02 15:23:29,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2024-12-02 15:23:29,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 627 transitions. [2024-12-02 15:23:29,515 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6997767857142857 [2024-12-02 15:23:29,515 INFO L175 Difference]: Start difference. First operand has 105 places, 60 transitions, 580 flow. Second operand 28 states and 627 transitions. [2024-12-02 15:23:29,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 260 transitions, 2119 flow [2024-12-02 15:23:29,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 260 transitions, 2039 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-12-02 15:23:29,546 INFO L231 Difference]: Finished difference. Result has 139 places, 76 transitions, 842 flow [2024-12-02 15:23:29,546 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=842, PETRI_PLACES=139, PETRI_TRANSITIONS=76} [2024-12-02 15:23:29,547 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 104 predicate places. [2024-12-02 15:23:29,547 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 76 transitions, 842 flow [2024-12-02 15:23:29,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 16.142857142857142) internal successors, (452), 28 states have internal predecessors, (452), 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) [2024-12-02 15:23:29,547 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:23:29,547 INFO L206 CegarLoopForPetriNet]: trace histogram [12, 11, 11, 11, 11, 11, 11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:23:29,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 15:23:29,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:23:29,748 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-12-02 15:23:29,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:29,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1173085911, now seen corresponding path program 2 times [2024-12-02 15:23:29,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:29,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587509046] [2024-12-02 15:23:29,749 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 15:23:29,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:29,779 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 15:23:29,779 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:23:30,349 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 0 proven. 458 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:30,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:30,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587509046] [2024-12-02 15:23:30,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587509046] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:23:30,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922988451] [2024-12-02 15:23:30,349 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 15:23:30,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:23:30,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:23:30,351 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:23:30,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 15:23:30,431 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 15:23:30,431 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:23:30,433 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 15:23:30,436 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:23:30,584 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 0 proven. 458 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:30,584 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:23:31,113 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 0 proven. 458 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:31,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922988451] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:23:31,113 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:23:31,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 46 [2024-12-02 15:23:31,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772598573] [2024-12-02 15:23:31,113 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:23:31,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-12-02 15:23:31,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:31,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-12-02 15:23:31,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=600, Invalid=1656, Unknown=0, NotChecked=0, Total=2256 [2024-12-02 15:23:31,183 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-12-02 15:23:31,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 76 transitions, 842 flow. Second operand has 48 states, 48 states have (on average 16.083333333333332) internal successors, (772), 48 states have internal predecessors, (772), 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) [2024-12-02 15:23:31,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:23:31,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-12-02 15:23:31,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:23:33,834 INFO L124 PetriNetUnfolderBase]: 4302/9500 cut-off events. [2024-12-02 15:23:33,835 INFO L125 PetriNetUnfolderBase]: For 82551/82575 co-relation queries the response was YES. [2024-12-02 15:23:33,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30905 conditions, 9500 events. 4302/9500 cut-off events. For 82551/82575 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 56706 event pairs, 71 based on Foata normal form. 402/9887 useless extension candidates. Maximal degree in co-relation 30845. Up to 1255 conditions per place. [2024-12-02 15:23:33,872 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 252 selfloop transitions, 72 changer transitions 89/425 dead transitions. [2024-12-02 15:23:33,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 425 transitions, 3533 flow [2024-12-02 15:23:33,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-12-02 15:23:33,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2024-12-02 15:23:33,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 1056 transitions. [2024-12-02 15:23:33,874 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7021276595744681 [2024-12-02 15:23:33,874 INFO L175 Difference]: Start difference. First operand has 139 places, 76 transitions, 842 flow. Second operand 47 states and 1056 transitions. [2024-12-02 15:23:33,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 425 transitions, 3533 flow [2024-12-02 15:23:33,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 425 transitions, 3387 flow, removed 0 selfloop flow, removed 11 redundant places. [2024-12-02 15:23:33,928 INFO L231 Difference]: Finished difference. Result has 197 places, 108 transitions, 1348 flow [2024-12-02 15:23:33,928 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=760, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=47, PETRI_FLOW=1348, PETRI_PLACES=197, PETRI_TRANSITIONS=108} [2024-12-02 15:23:33,929 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 162 predicate places. [2024-12-02 15:23:33,929 INFO L471 AbstractCegarLoop]: Abstraction has has 197 places, 108 transitions, 1348 flow [2024-12-02 15:23:33,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 16.083333333333332) internal successors, (772), 48 states have internal predecessors, (772), 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) [2024-12-02 15:23:33,929 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:23:33,929 INFO L206 CegarLoopForPetriNet]: trace histogram [23, 22, 22, 22, 22, 22, 22, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:23:33,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 15:23:34,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:23:34,130 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-12-02 15:23:34,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:34,131 INFO L85 PathProgramCache]: Analyzing trace with hash -282630505, now seen corresponding path program 3 times [2024-12-02 15:23:34,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:34,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247825430] [2024-12-02 15:23:34,131 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 15:23:34,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:34,215 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2024-12-02 15:23:34,215 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:23:36,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1905 backedges. 1775 proven. 112 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 15:23:36,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:36,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247825430] [2024-12-02 15:23:36,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247825430] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:23:36,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100788123] [2024-12-02 15:23:36,605 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 15:23:36,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:23:36,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:23:36,607 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:23:36,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 15:23:36,737 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2024-12-02 15:23:36,737 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:23:36,739 INFO L256 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-12-02 15:23:36,744 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:23:36,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1905 backedges. 1887 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 15:23:36,982 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:23:36,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100788123] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:36,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:23:36,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [47] total 49 [2024-12-02 15:23:36,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982345703] [2024-12-02 15:23:36,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:36,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-12-02 15:23:36,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:36,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-12-02 15:23:36,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=581, Invalid=1771, Unknown=0, NotChecked=0, Total=2352 [2024-12-02 15:23:37,033 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 32 [2024-12-02 15:23:37,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 108 transitions, 1348 flow. Second operand has 47 states, 47 states have (on average 12.957446808510639) internal successors, (609), 47 states have internal predecessors, (609), 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) [2024-12-02 15:23:37,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:23:37,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 32 [2024-12-02 15:23:37,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:23:53,886 INFO L124 PetriNetUnfolderBase]: 57508/100350 cut-off events. [2024-12-02 15:23:53,886 INFO L125 PetriNetUnfolderBase]: For 259047/259641 co-relation queries the response was YES. [2024-12-02 15:23:54,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 336295 conditions, 100350 events. 57508/100350 cut-off events. For 259047/259641 co-relation queries the response was YES. Maximal size of possible extension queue 832. Compared 835388 event pairs, 290 based on Foata normal form. 1320/101657 useless extension candidates. Maximal degree in co-relation 336222. Up to 11293 conditions per place. [2024-12-02 15:23:54,710 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 0 selfloop transitions, 0 changer transitions 1594/1594 dead transitions. [2024-12-02 15:23:54,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 1594 transitions, 21097 flow [2024-12-02 15:23:54,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-12-02 15:23:54,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2024-12-02 15:23:54,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 788 transitions. [2024-12-02 15:23:54,712 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5726744186046512 [2024-12-02 15:23:54,712 INFO L175 Difference]: Start difference. First operand has 197 places, 108 transitions, 1348 flow. Second operand 43 states and 788 transitions. [2024-12-02 15:23:54,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 1594 transitions, 21097 flow [2024-12-02 15:23:55,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 1594 transitions, 14768 flow, removed 19 selfloop flow, removed 72 redundant places. [2024-12-02 15:23:55,503 INFO L231 Difference]: Finished difference. Result has 160 places, 0 transitions, 0 flow [2024-12-02 15:23:55,503 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=652, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=43, PETRI_FLOW=0, PETRI_PLACES=160, PETRI_TRANSITIONS=0} [2024-12-02 15:23:55,504 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 125 predicate places. [2024-12-02 15:23:55,504 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 0 transitions, 0 flow [2024-12-02 15:23:55,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 12.957446808510639) internal successors, (609), 47 states have internal predecessors, (609), 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) [2024-12-02 15:23:55,506 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-12-02 15:23:55,506 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 18 remaining) [2024-12-02 15:23:55,506 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2024-12-02 15:23:55,506 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2024-12-02 15:23:55,506 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2024-12-02 15:23:55,507 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2024-12-02 15:23:55,507 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2024-12-02 15:23:55,507 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2024-12-02 15:23:55,507 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2024-12-02 15:23:55,507 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2024-12-02 15:23:55,507 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2024-12-02 15:23:55,507 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2024-12-02 15:23:55,507 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2024-12-02 15:23:55,507 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2024-12-02 15:23:55,507 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2024-12-02 15:23:55,507 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2024-12-02 15:23:55,507 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2024-12-02 15:23:55,507 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2024-12-02 15:23:55,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 15:23:55,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:23:55,708 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:23:55,712 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-12-02 15:23:55,712 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 15:23:55,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:23:55 BasicIcfg [2024-12-02 15:23:55,716 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 15:23:55,717 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 15:23:55,717 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 15:23:55,717 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 15:23:55,718 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:23:20" (3/4) ... [2024-12-02 15:23:55,719 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 15:23:55,721 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2024-12-02 15:23:55,721 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2024-12-02 15:23:55,723 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2024-12-02 15:23:55,723 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-12-02 15:23:55,723 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-02 15:23:55,723 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 15:23:55,773 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 15:23:55,773 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 15:23:55,773 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 15:23:55,774 INFO L158 Benchmark]: Toolchain (without parser) took 36228.68ms. Allocated memory was 142.6MB in the beginning and 4.6GB in the end (delta: 4.5GB). Free memory was 115.9MB in the beginning and 2.7GB in the end (delta: -2.6GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. [2024-12-02 15:23:55,774 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:23:55,774 INFO L158 Benchmark]: CACSL2BoogieTranslator took 387.82ms. Allocated memory is still 142.6MB. Free memory was 115.7MB in the beginning and 96.4MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 15:23:55,774 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.09ms. Allocated memory is still 142.6MB. Free memory was 96.4MB in the beginning and 94.8MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 15:23:55,775 INFO L158 Benchmark]: Boogie Preprocessor took 35.16ms. Allocated memory is still 142.6MB. Free memory was 94.8MB in the beginning and 93.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:23:55,775 INFO L158 Benchmark]: RCFGBuilder took 363.00ms. Allocated memory is still 142.6MB. Free memory was 93.3MB in the beginning and 73.7MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 15:23:55,775 INFO L158 Benchmark]: TraceAbstraction took 35349.35ms. Allocated memory was 142.6MB in the beginning and 4.6GB in the end (delta: 4.5GB). Free memory was 73.1MB in the beginning and 2.7GB in the end (delta: -2.6GB). Peak memory consumption was 2.0GB. Max. memory is 16.1GB. [2024-12-02 15:23:55,776 INFO L158 Benchmark]: Witness Printer took 56.10ms. Allocated memory is still 4.6GB. Free memory was 2.7GB in the beginning and 2.7GB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:23:55,777 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 387.82ms. Allocated memory is still 142.6MB. Free memory was 115.7MB in the beginning and 96.4MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.09ms. Allocated memory is still 142.6MB. Free memory was 96.4MB in the beginning and 94.8MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.16ms. Allocated memory is still 142.6MB. Free memory was 94.8MB in the beginning and 93.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 363.00ms. Allocated memory is still 142.6MB. Free memory was 93.3MB in the beginning and 73.7MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 35349.35ms. Allocated memory was 142.6MB in the beginning and 4.6GB in the end (delta: 4.5GB). Free memory was 73.1MB in the beginning and 2.7GB in the end (delta: -2.6GB). Peak memory consumption was 2.0GB. Max. memory is 16.1GB. * Witness Printer took 56.10ms. Allocated memory is still 4.6GB. Free memory was 2.7GB in the beginning and 2.7GB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 698]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 698]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 706]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 706]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 704]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 704]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 55 locations, 18 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 35.3s, OverallIterations: 20, TraceHistogramMax: 23, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 26.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3561 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3489 mSDsluCounter, 263 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 240 mSDsCounter, 70 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4789 IncrementalHoareTripleChecker+Invalid, 4859 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 70 mSolverCounterUnsat, 23 mSDtfsCounter, 4789 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1028 GetRequests, 721 SyntacticMatches, 0 SemanticMatches, 307 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3472 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1348occurred in iteration=19, InterpolantAutomatonStates: 208, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 1120 NumberOfCodeBlocks, 1110 NumberOfCodeBlocksAsserted, 68 NumberOfCheckSat, 1342 ConstructedInterpolants, 0 QuantifiedInterpolants, 3924 SizeOfPredicates, 71 NumberOfNonLiveVariables, 1539 ConjunctsInSsa, 111 ConjunctsInUnsatCore, 33 InterpolantComputations, 15 PerfectInterpolantSequences, 3716/5663 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-12-02 15:23:55,789 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15252dd4-9d06-428a-a5ba-97cf1bce3d4b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE