./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b034d85232772d264d33ccb960d3ce3e7bf57df858fd0c6fd0b22127388c3f9a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:51:43,510 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:51:43,601 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 17:51:43,606 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:51:43,607 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:51:43,653 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:51:43,655 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:51:43,655 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:51:43,656 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:51:43,658 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:51:43,659 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:51:43,660 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:51:43,660 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:51:43,661 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:51:43,661 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:51:43,664 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:51:43,665 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:51:43,665 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:51:43,666 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:51:43,669 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:51:43,670 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:51:43,671 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:51:43,671 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:51:43,671 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:51:43,672 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:51:43,672 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 17:51:43,672 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:51:43,673 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:51:43,673 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:51:43,673 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:51:43,675 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:51:43,676 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:51:43,677 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:51:43,677 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:51:43,677 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:51:43,678 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:51:43,691 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:51:43,692 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:51:43,693 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:51:43,693 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:51:43,693 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:51:43,694 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:51:43,694 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:51:43,694 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:51:43,695 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b034d85232772d264d33ccb960d3ce3e7bf57df858fd0c6fd0b22127388c3f9a [2024-11-08 17:51:44,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:51:44,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:51:44,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:51:44,078 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:51:44,079 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:51:44,080 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c Unable to find full path for "g++" [2024-11-08 17:51:46,257 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:51:46,463 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:51:46,464 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c [2024-11-08 17:51:46,474 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/data/a8cdf8236/57e3e5f3fa354172b826c13093350ab0/FLAG485a2fe4f [2024-11-08 17:51:46,492 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/data/a8cdf8236/57e3e5f3fa354172b826c13093350ab0 [2024-11-08 17:51:46,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:51:46,497 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:51:46,498 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:51:46,499 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:51:46,506 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:51:46,507 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:51:46" (1/1) ... [2024-11-08 17:51:46,508 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27f88303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:51:46, skipping insertion in model container [2024-11-08 17:51:46,509 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:51:46" (1/1) ... [2024-11-08 17:51:46,546 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:51:46,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:51:46,831 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:51:46,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:51:46,880 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:51:46,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:51:46 WrapperNode [2024-11-08 17:51:46,881 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:51:46,882 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:51:46,883 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:51:46,883 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:51:46,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:51:46" (1/1) ... [2024-11-08 17:51:46,912 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:51:46" (1/1) ... [2024-11-08 17:51:46,950 INFO L138 Inliner]: procedures = 23, calls = 26, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 177 [2024-11-08 17:51:46,951 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:51:46,952 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:51:46,952 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:51:46,952 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:51:46,966 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:51:46" (1/1) ... [2024-11-08 17:51:46,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:51:46" (1/1) ... [2024-11-08 17:51:46,970 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:51:46" (1/1) ... [2024-11-08 17:51:46,991 INFO L175 MemorySlicer]: Split 12 memory accesses to 2 slices as follows [2, 10]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-11-08 17:51:46,991 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:51:46" (1/1) ... [2024-11-08 17:51:46,991 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:51:46" (1/1) ... [2024-11-08 17:51:47,000 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:51:46" (1/1) ... [2024-11-08 17:51:47,006 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:51:46" (1/1) ... [2024-11-08 17:51:47,008 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:51:46" (1/1) ... [2024-11-08 17:51:47,009 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:51:46" (1/1) ... [2024-11-08 17:51:47,013 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:51:47,014 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:51:47,014 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:51:47,014 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:51:47,015 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:51:46" (1/1) ... [2024-11-08 17:51:47,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:51:47,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:51:47,051 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:51:47,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:51:47,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:51:47,103 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-08 17:51:47,103 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-08 17:51:47,103 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-08 17:51:47,103 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-08 17:51:47,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:51:47,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 17:51:47,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 17:51:47,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 17:51:47,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 17:51:47,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:51:47,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:51:47,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 17:51:47,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 17:51:47,108 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 17:51:47,239 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:51:47,246 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:51:47,760 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 17:51:47,760 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:51:48,167 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:51:48,168 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 17:51:48,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:51:48 BoogieIcfgContainer [2024-11-08 17:51:48,169 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:51:48,176 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:51:48,176 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:51:48,181 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:51:48,182 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:51:46" (1/3) ... [2024-11-08 17:51:48,183 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2945dfa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:51:48, skipping insertion in model container [2024-11-08 17:51:48,183 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:51:46" (2/3) ... [2024-11-08 17:51:48,183 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2945dfa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:51:48, skipping insertion in model container [2024-11-08 17:51:48,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:51:48" (3/3) ... [2024-11-08 17:51:48,187 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-opt-symm.wvr.c [2024-11-08 17:51:48,213 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:51:48,214 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-11-08 17:51:48,214 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 17:51:48,312 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-08 17:51:48,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 55 transitions, 124 flow [2024-11-08 17:51:48,417 INFO L124 PetriNetUnfolderBase]: 10/53 cut-off events. [2024-11-08 17:51:48,417 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-08 17:51:48,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 53 events. 10/53 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 106 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 35. Up to 3 conditions per place. [2024-11-08 17:51:48,424 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 55 transitions, 124 flow [2024-11-08 17:51:48,429 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 52 transitions, 116 flow [2024-11-08 17:51:48,445 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:51:48,454 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;@388979c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:51:48,454 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-08 17:51:48,459 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:51:48,459 INFO L124 PetriNetUnfolderBase]: 2/9 cut-off events. [2024-11-08 17:51:48,460 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:51:48,460 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:51:48,461 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-08 17:51:48,461 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-08 17:51:48,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:51:48,468 INFO L85 PathProgramCache]: Analyzing trace with hash 17542955, now seen corresponding path program 1 times [2024-11-08 17:51:48,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:51:48,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459627862] [2024-11-08 17:51:48,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:51:48,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:51:48,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:51:48,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:51:48,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:51:48,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459627862] [2024-11-08 17:51:48,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459627862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:51:48,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:51:48,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:51:48,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551272109] [2024-11-08 17:51:48,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:51:48,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:51:48,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:51:48,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:51:48,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:51:48,950 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2024-11-08 17:51:48,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 52 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:51:48,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:51:48,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2024-11-08 17:51:48,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:51:49,203 INFO L124 PetriNetUnfolderBase]: 157/347 cut-off events. [2024-11-08 17:51:49,203 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-11-08 17:51:49,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 619 conditions, 347 events. 157/347 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1588 event pairs, 90 based on Foata normal form. 2/274 useless extension candidates. Maximal degree in co-relation 523. Up to 243 conditions per place. [2024-11-08 17:51:49,222 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 28 selfloop transitions, 7 changer transitions 0/58 dead transitions. [2024-11-08 17:51:49,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 58 transitions, 198 flow [2024-11-08 17:51:49,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:51:49,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:51:49,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 139 transitions. [2024-11-08 17:51:49,238 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6318181818181818 [2024-11-08 17:51:49,241 INFO L175 Difference]: Start difference. First operand has 49 places, 52 transitions, 116 flow. Second operand 4 states and 139 transitions. [2024-11-08 17:51:49,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 58 transitions, 198 flow [2024-11-08 17:51:49,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 58 transitions, 190 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-08 17:51:49,253 INFO L231 Difference]: Finished difference. Result has 51 places, 58 transitions, 168 flow [2024-11-08 17:51:49,258 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=168, PETRI_PLACES=51, PETRI_TRANSITIONS=58} [2024-11-08 17:51:49,262 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 2 predicate places. [2024-11-08 17:51:49,262 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 58 transitions, 168 flow [2024-11-08 17:51:49,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:51:49,263 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:51:49,263 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-08 17:51:49,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:51:49,264 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-08 17:51:49,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:51:49,265 INFO L85 PathProgramCache]: Analyzing trace with hash 688068252, now seen corresponding path program 1 times [2024-11-08 17:51:49,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:51:49,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914153244] [2024-11-08 17:51:49,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:51:49,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:51:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:51:49,483 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:51:49,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:51:49,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914153244] [2024-11-08 17:51:49,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914153244] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:51:49,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70201353] [2024-11-08 17:51:49,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:51:49,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:51:49,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:51:49,491 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:51:49,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:51:49,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:51:49,603 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 17:51:49,610 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:51:49,695 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:51:49,696 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:51:49,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70201353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:51:49,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:51:49,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-08 17:51:49,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444623908] [2024-11-08 17:51:49,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:51:49,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:51:49,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:51:49,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:51:49,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:51:49,777 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2024-11-08 17:51:49,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 58 transitions, 168 flow. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:51:49,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:51:49,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2024-11-08 17:51:49,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:51:50,033 INFO L124 PetriNetUnfolderBase]: 157/345 cut-off events. [2024-11-08 17:51:50,034 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-11-08 17:51:50,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 624 conditions, 345 events. 157/345 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1576 event pairs, 90 based on Foata normal form. 2/272 useless extension candidates. Maximal degree in co-relation 568. Up to 233 conditions per place. [2024-11-08 17:51:50,043 INFO L140 encePairwiseOnDemand]: 46/55 looper letters, 21 selfloop transitions, 12 changer transitions 0/56 dead transitions. [2024-11-08 17:51:50,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 56 transitions, 226 flow [2024-11-08 17:51:50,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:51:50,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:51:50,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 185 transitions. [2024-11-08 17:51:50,047 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5606060606060606 [2024-11-08 17:51:50,050 INFO L175 Difference]: Start difference. First operand has 51 places, 58 transitions, 168 flow. Second operand 6 states and 185 transitions. [2024-11-08 17:51:50,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 56 transitions, 226 flow [2024-11-08 17:51:50,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 56 transitions, 226 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:51:50,058 INFO L231 Difference]: Finished difference. Result has 54 places, 56 transitions, 184 flow [2024-11-08 17:51:50,058 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=184, PETRI_PLACES=54, PETRI_TRANSITIONS=56} [2024-11-08 17:51:50,059 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 5 predicate places. [2024-11-08 17:51:50,059 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 56 transitions, 184 flow [2024-11-08 17:51:50,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:51:50,060 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:51:50,060 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-08 17:51:50,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 17:51:50,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:51:50,262 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-08 17:51:50,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:51:50,263 INFO L85 PathProgramCache]: Analyzing trace with hash -144720104, now seen corresponding path program 1 times [2024-11-08 17:51:50,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:51:50,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697321223] [2024-11-08 17:51:50,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:51:50,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:51:50,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:51:50,398 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:51:50,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:51:50,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697321223] [2024-11-08 17:51:50,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697321223] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:51:50,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015300976] [2024-11-08 17:51:50,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:51:50,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:51:50,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:51:50,402 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:51:50,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 17:51:50,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:51:50,501 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 17:51:50,502 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:51:50,565 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:51:50,565 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:51:50,630 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:51:50,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015300976] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:51:50,631 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:51:50,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-08 17:51:50,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643080412] [2024-11-08 17:51:50,631 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:51:50,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 17:51:50,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:51:50,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 17:51:50,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-08 17:51:50,762 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2024-11-08 17:51:50,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 56 transitions, 184 flow. Second operand has 12 states, 12 states have (on average 26.083333333333332) internal successors, (313), 12 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:51:50,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:51:50,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2024-11-08 17:51:50,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:51:51,038 INFO L124 PetriNetUnfolderBase]: 169/387 cut-off events. [2024-11-08 17:51:51,039 INFO L125 PetriNetUnfolderBase]: For 125/125 co-relation queries the response was YES. [2024-11-08 17:51:51,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 736 conditions, 387 events. 169/387 cut-off events. For 125/125 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1811 event pairs, 90 based on Foata normal form. 6/314 useless extension candidates. Maximal degree in co-relation 570. Up to 244 conditions per place. [2024-11-08 17:51:51,043 INFO L140 encePairwiseOnDemand]: 46/55 looper letters, 26 selfloop transitions, 25 changer transitions 0/74 dead transitions. [2024-11-08 17:51:51,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 74 transitions, 400 flow [2024-11-08 17:51:51,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:51:51,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-08 17:51:51,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 307 transitions. [2024-11-08 17:51:51,046 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5581818181818182 [2024-11-08 17:51:51,046 INFO L175 Difference]: Start difference. First operand has 54 places, 56 transitions, 184 flow. Second operand 10 states and 307 transitions. [2024-11-08 17:51:51,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 74 transitions, 400 flow [2024-11-08 17:51:51,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 74 transitions, 342 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-11-08 17:51:51,051 INFO L231 Difference]: Finished difference. Result has 61 places, 74 transitions, 324 flow [2024-11-08 17:51:51,051 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=324, PETRI_PLACES=61, PETRI_TRANSITIONS=74} [2024-11-08 17:51:51,052 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 12 predicate places. [2024-11-08 17:51:51,053 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 74 transitions, 324 flow [2024-11-08 17:51:51,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 26.083333333333332) internal successors, (313), 12 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:51:51,053 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:51:51,053 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:51:51,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 17:51:51,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:51:51,258 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-08 17:51:51,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:51:51,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1803462022, now seen corresponding path program 1 times [2024-11-08 17:51:51,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:51:51,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6782190] [2024-11-08 17:51:51,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:51:51,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:51:51,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:51:51,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:51:51,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:51:51,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6782190] [2024-11-08 17:51:51,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6782190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:51:51,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:51:51,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:51:51,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282873105] [2024-11-08 17:51:51,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:51:51,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:51:51,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:51:51,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:51:51,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:51:51,371 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 55 [2024-11-08 17:51:51,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 74 transitions, 324 flow. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:51:51,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:51:51,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 55 [2024-11-08 17:51:51,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:51:51,585 INFO L124 PetriNetUnfolderBase]: 336/681 cut-off events. [2024-11-08 17:51:51,586 INFO L125 PetriNetUnfolderBase]: For 163/163 co-relation queries the response was YES. [2024-11-08 17:51:51,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1302 conditions, 681 events. 336/681 cut-off events. For 163/163 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3326 event pairs, 113 based on Foata normal form. 14/575 useless extension candidates. Maximal degree in co-relation 1229. Up to 326 conditions per place. [2024-11-08 17:51:51,592 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 73 selfloop transitions, 3 changer transitions 0/99 dead transitions. [2024-11-08 17:51:51,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 99 transitions, 530 flow [2024-11-08 17:51:51,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:51:51,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:51:51,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 162 transitions. [2024-11-08 17:51:51,594 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7363636363636363 [2024-11-08 17:51:51,594 INFO L175 Difference]: Start difference. First operand has 61 places, 74 transitions, 324 flow. Second operand 4 states and 162 transitions. [2024-11-08 17:51:51,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 99 transitions, 530 flow [2024-11-08 17:51:51,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 99 transitions, 506 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-11-08 17:51:51,600 INFO L231 Difference]: Finished difference. Result has 64 places, 76 transitions, 322 flow [2024-11-08 17:51:51,601 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=322, PETRI_PLACES=64, PETRI_TRANSITIONS=76} [2024-11-08 17:51:51,602 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 15 predicate places. [2024-11-08 17:51:51,602 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 76 transitions, 322 flow [2024-11-08 17:51:51,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:51:51,603 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:51:51,603 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:51:51,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:51:51,603 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-08 17:51:51,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:51:51,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1202633876, now seen corresponding path program 1 times [2024-11-08 17:51:51,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:51:51,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58907651] [2024-11-08 17:51:51,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:51:51,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:51:51,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:51:51,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:51:51,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:51:51,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58907651] [2024-11-08 17:51:51,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58907651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:51:51,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:51:51,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:51:51,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611151815] [2024-11-08 17:51:51,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:51:51,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:51:51,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:51:51,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:51:51,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:51:51,704 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 55 [2024-11-08 17:51:51,704 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 76 transitions, 322 flow. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:51:51,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:51:51,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 55 [2024-11-08 17:51:51,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:51:51,999 INFO L124 PetriNetUnfolderBase]: 577/1104 cut-off events. [2024-11-08 17:51:51,999 INFO L125 PetriNetUnfolderBase]: For 352/376 co-relation queries the response was YES. [2024-11-08 17:51:52,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2245 conditions, 1104 events. 577/1104 cut-off events. For 352/376 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5611 event pairs, 238 based on Foata normal form. 24/994 useless extension candidates. Maximal degree in co-relation 2172. Up to 570 conditions per place. [2024-11-08 17:51:52,008 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 76 selfloop transitions, 3 changer transitions 0/102 dead transitions. [2024-11-08 17:51:52,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 102 transitions, 563 flow [2024-11-08 17:51:52,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:51:52,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:51:52,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 159 transitions. [2024-11-08 17:51:52,010 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7227272727272728 [2024-11-08 17:51:52,010 INFO L175 Difference]: Start difference. First operand has 64 places, 76 transitions, 322 flow. Second operand 4 states and 159 transitions. [2024-11-08 17:51:52,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 102 transitions, 563 flow [2024-11-08 17:51:52,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 102 transitions, 557 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:51:52,015 INFO L231 Difference]: Finished difference. Result has 68 places, 78 transitions, 342 flow [2024-11-08 17:51:52,015 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=342, PETRI_PLACES=68, PETRI_TRANSITIONS=78} [2024-11-08 17:51:52,016 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 19 predicate places. [2024-11-08 17:51:52,016 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 78 transitions, 342 flow [2024-11-08 17:51:52,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:51:52,017 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:51:52,017 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:51:52,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:51:52,018 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-08 17:51:52,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:51:52,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1463967736, now seen corresponding path program 1 times [2024-11-08 17:51:52,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:51:52,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472032902] [2024-11-08 17:51:52,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:51:52,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:51:52,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:51:52,099 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 17:51:52,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:51:52,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472032902] [2024-11-08 17:51:52,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472032902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:51:52,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:51:52,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:51:52,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631511229] [2024-11-08 17:51:52,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:51:52,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:51:52,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:51:52,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:51:52,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:51:52,112 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2024-11-08 17:51:52,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 78 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:51:52,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:51:52,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2024-11-08 17:51:52,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:51:52,341 INFO L124 PetriNetUnfolderBase]: 492/1042 cut-off events. [2024-11-08 17:51:52,341 INFO L125 PetriNetUnfolderBase]: For 415/417 co-relation queries the response was YES. [2024-11-08 17:51:52,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2250 conditions, 1042 events. 492/1042 cut-off events. For 415/417 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 5522 event pairs, 297 based on Foata normal form. 4/987 useless extension candidates. Maximal degree in co-relation 2171. Up to 731 conditions per place. [2024-11-08 17:51:52,351 INFO L140 encePairwiseOnDemand]: 47/55 looper letters, 48 selfloop transitions, 7 changer transitions 0/76 dead transitions. [2024-11-08 17:51:52,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 76 transitions, 443 flow [2024-11-08 17:51:52,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:51:52,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:51:52,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 112 transitions. [2024-11-08 17:51:52,353 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6787878787878788 [2024-11-08 17:51:52,353 INFO L175 Difference]: Start difference. First operand has 68 places, 78 transitions, 342 flow. Second operand 3 states and 112 transitions. [2024-11-08 17:51:52,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 76 transitions, 443 flow [2024-11-08 17:51:52,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 76 transitions, 434 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:51:52,360 INFO L231 Difference]: Finished difference. Result has 69 places, 76 transitions, 353 flow [2024-11-08 17:51:52,361 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=353, PETRI_PLACES=69, PETRI_TRANSITIONS=76} [2024-11-08 17:51:52,362 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 20 predicate places. [2024-11-08 17:51:52,363 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 76 transitions, 353 flow [2024-11-08 17:51:52,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:51:52,364 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:51:52,364 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 1, 1] [2024-11-08 17:51:52,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:51:52,364 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-08 17:51:52,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:51:52,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1526090203, now seen corresponding path program 2 times [2024-11-08 17:51:52,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:51:52,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093354291] [2024-11-08 17:51:52,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:51:52,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:51:52,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:51:52,658 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:51:52,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:51:52,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093354291] [2024-11-08 17:51:52,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093354291] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:51:52,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241001911] [2024-11-08 17:51:52,658 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 17:51:52,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:51:52,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:51:52,661 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:51:52,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 17:51:52,749 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 17:51:52,749 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 17:51:52,750 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 17:51:52,751 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:51:52,833 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 17:51:52,834 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:51:52,947 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 17:51:52,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241001911] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:51:52,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:51:52,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 3, 3] total 14 [2024-11-08 17:51:52,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486965231] [2024-11-08 17:51:52,949 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:51:52,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-08 17:51:52,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:51:52,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-08 17:51:52,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2024-11-08 17:51:53,061 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 55 [2024-11-08 17:51:53,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 76 transitions, 353 flow. Second operand has 16 states, 16 states have (on average 20.75) internal successors, (332), 16 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:51:53,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:51:53,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 55 [2024-11-08 17:51:53,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:51:53,629 INFO L124 PetriNetUnfolderBase]: 496/1044 cut-off events. [2024-11-08 17:51:53,629 INFO L125 PetriNetUnfolderBase]: For 379/381 co-relation queries the response was YES. [2024-11-08 17:51:53,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2275 conditions, 1044 events. 496/1044 cut-off events. For 379/381 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 5559 event pairs, 303 based on Foata normal form. 2/987 useless extension candidates. Maximal degree in co-relation 2182. Up to 708 conditions per place. [2024-11-08 17:51:53,639 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 50 selfloop transitions, 33 changer transitions 0/100 dead transitions. [2024-11-08 17:51:53,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 100 transitions, 588 flow [2024-11-08 17:51:53,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 17:51:53,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-08 17:51:53,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 328 transitions. [2024-11-08 17:51:53,642 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45874125874125876 [2024-11-08 17:51:53,643 INFO L175 Difference]: Start difference. First operand has 69 places, 76 transitions, 353 flow. Second operand 13 states and 328 transitions. [2024-11-08 17:51:53,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 100 transitions, 588 flow [2024-11-08 17:51:53,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 100 transitions, 552 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-11-08 17:51:53,648 INFO L231 Difference]: Finished difference. Result has 74 places, 78 transitions, 390 flow [2024-11-08 17:51:53,648 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=390, PETRI_PLACES=74, PETRI_TRANSITIONS=78} [2024-11-08 17:51:53,650 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 25 predicate places. [2024-11-08 17:51:53,650 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 78 transitions, 390 flow [2024-11-08 17:51:53,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 20.75) internal successors, (332), 16 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:51:53,651 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:51:53,652 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:51:53,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 17:51:53,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:51:53,854 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-08 17:51:53,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:51:53,855 INFO L85 PathProgramCache]: Analyzing trace with hash -266927061, now seen corresponding path program 1 times [2024-11-08 17:51:53,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:51:53,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370176884] [2024-11-08 17:51:53,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:51:53,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:51:53,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:51:54,039 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 17:51:54,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:51:54,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370176884] [2024-11-08 17:51:54,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370176884] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:51:54,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711215443] [2024-11-08 17:51:54,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:51:54,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:51:54,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:51:54,043 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:51:54,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 17:51:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:51:54,156 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 17:51:54,158 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:51:54,225 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 17:51:54,225 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:51:54,271 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 17:51:54,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1711215443] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:51:54,272 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:51:54,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-08 17:51:54,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822956904] [2024-11-08 17:51:54,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:51:54,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 17:51:54,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:51:54,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 17:51:54,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:51:54,319 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 55 [2024-11-08 17:51:54,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 78 transitions, 390 flow. Second operand has 11 states, 11 states have (on average 21.363636363636363) internal successors, (235), 11 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:51:54,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:51:54,320 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 55 [2024-11-08 17:51:54,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:51:54,653 INFO L124 PetriNetUnfolderBase]: 484/1028 cut-off events. [2024-11-08 17:51:54,654 INFO L125 PetriNetUnfolderBase]: For 387/389 co-relation queries the response was YES. [2024-11-08 17:51:54,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2249 conditions, 1028 events. 484/1028 cut-off events. For 387/389 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 5348 event pairs, 303 based on Foata normal form. 12/981 useless extension candidates. Maximal degree in co-relation 2061. Up to 718 conditions per place. [2024-11-08 17:51:54,661 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 39 selfloop transitions, 22 changer transitions 0/78 dead transitions. [2024-11-08 17:51:54,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 78 transitions, 498 flow [2024-11-08 17:51:54,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:51:54,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 17:51:54,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 184 transitions. [2024-11-08 17:51:54,663 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4779220779220779 [2024-11-08 17:51:54,663 INFO L175 Difference]: Start difference. First operand has 74 places, 78 transitions, 390 flow. Second operand 7 states and 184 transitions. [2024-11-08 17:51:54,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 78 transitions, 498 flow [2024-11-08 17:51:54,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 78 transitions, 400 flow, removed 6 selfloop flow, removed 12 redundant places. [2024-11-08 17:51:54,668 INFO L231 Difference]: Finished difference. Result has 71 places, 74 transitions, 348 flow [2024-11-08 17:51:54,668 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=348, PETRI_PLACES=71, PETRI_TRANSITIONS=74} [2024-11-08 17:51:54,669 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 22 predicate places. [2024-11-08 17:51:54,669 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 74 transitions, 348 flow [2024-11-08 17:51:54,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 21.363636363636363) internal successors, (235), 11 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:51:54,670 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:51:54,670 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:51:54,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 17:51:54,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:51:54,871 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-08 17:51:54,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:51:54,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1131041551, now seen corresponding path program 2 times [2024-11-08 17:51:54,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:51:54,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712759050] [2024-11-08 17:51:54,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:51:54,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:51:54,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:51:55,213 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-08 17:51:55,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:51:55,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712759050] [2024-11-08 17:51:55,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712759050] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:51:55,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243145390] [2024-11-08 17:51:55,214 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 17:51:55,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:51:55,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:51:55,216 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:51:55,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 17:51:55,350 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 17:51:55,350 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 17:51:55,352 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 17:51:55,354 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:51:55,540 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-08 17:51:55,541 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:51:55,647 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-08 17:51:55,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243145390] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:51:55,648 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:51:55,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-08 17:51:55,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300667309] [2024-11-08 17:51:55,649 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:51:55,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 17:51:55,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:51:55,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 17:51:55,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-08 17:51:55,737 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 55 [2024-11-08 17:51:55,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 74 transitions, 348 flow. Second operand has 18 states, 18 states have (on average 21.11111111111111) internal successors, (380), 18 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:51:55,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:51:55,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 55 [2024-11-08 17:51:55,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:51:56,099 INFO L124 PetriNetUnfolderBase]: 480/1020 cut-off events. [2024-11-08 17:51:56,100 INFO L125 PetriNetUnfolderBase]: For 364/366 co-relation queries the response was YES. [2024-11-08 17:51:56,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2228 conditions, 1020 events. 480/1020 cut-off events. For 364/366 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 5292 event pairs, 303 based on Foata normal form. 4/965 useless extension candidates. Maximal degree in co-relation 2051. Up to 708 conditions per place. [2024-11-08 17:51:56,106 INFO L140 encePairwiseOnDemand]: 45/55 looper letters, 37 selfloop transitions, 22 changer transitions 0/76 dead transitions. [2024-11-08 17:51:56,107 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 76 transitions, 484 flow [2024-11-08 17:51:56,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 17:51:56,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-08 17:51:56,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 268 transitions. [2024-11-08 17:51:56,108 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44297520661157025 [2024-11-08 17:51:56,108 INFO L175 Difference]: Start difference. First operand has 71 places, 74 transitions, 348 flow. Second operand 11 states and 268 transitions. [2024-11-08 17:51:56,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 76 transitions, 484 flow [2024-11-08 17:51:56,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 76 transitions, 442 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-11-08 17:51:56,112 INFO L231 Difference]: Finished difference. Result has 78 places, 70 transitions, 356 flow [2024-11-08 17:51:56,113 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=356, PETRI_PLACES=78, PETRI_TRANSITIONS=70} [2024-11-08 17:51:56,113 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 29 predicate places. [2024-11-08 17:51:56,113 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 70 transitions, 356 flow [2024-11-08 17:51:56,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 21.11111111111111) internal successors, (380), 18 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:51:56,114 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:51:56,114 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:51:56,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 17:51:56,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-08 17:51:56,319 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-08 17:51:56,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:51:56,319 INFO L85 PathProgramCache]: Analyzing trace with hash -2102187081, now seen corresponding path program 3 times [2024-11-08 17:51:56,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:51:56,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546650899] [2024-11-08 17:51:56,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:51:56,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:51:56,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:51:56,549 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-08 17:51:56,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:51:56,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546650899] [2024-11-08 17:51:56,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546650899] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:51:56,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732944261] [2024-11-08 17:51:56,550 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 17:51:56,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:51:56,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:51:56,552 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:51:56,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 17:51:56,692 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-08 17:51:56,692 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 17:51:56,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 17:51:56,695 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:51:56,748 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-08 17:51:56,748 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:51:56,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732944261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:51:56,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:51:56,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-08 17:51:56,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752669740] [2024-11-08 17:51:56,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:51:56,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:51:56,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:51:56,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:51:56,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:51:56,778 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 55 [2024-11-08 17:51:56,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 70 transitions, 356 flow. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:51:56,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:51:56,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 55 [2024-11-08 17:51:56,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:51:57,064 INFO L124 PetriNetUnfolderBase]: 601/1133 cut-off events. [2024-11-08 17:51:57,065 INFO L125 PetriNetUnfolderBase]: For 394/402 co-relation queries the response was YES. [2024-11-08 17:51:57,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2551 conditions, 1133 events. 601/1133 cut-off events. For 394/402 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 5315 event pairs, 134 based on Foata normal form. 24/1094 useless extension candidates. Maximal degree in co-relation 2378. Up to 549 conditions per place. [2024-11-08 17:51:57,073 INFO L140 encePairwiseOnDemand]: 51/55 looper letters, 64 selfloop transitions, 5 changer transitions 0/91 dead transitions. [2024-11-08 17:51:57,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 91 transitions, 560 flow [2024-11-08 17:51:57,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:51:57,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:51:57,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 150 transitions. [2024-11-08 17:51:57,075 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6818181818181818 [2024-11-08 17:51:57,075 INFO L175 Difference]: Start difference. First operand has 78 places, 70 transitions, 356 flow. Second operand 4 states and 150 transitions. [2024-11-08 17:51:57,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 91 transitions, 560 flow [2024-11-08 17:51:57,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 91 transitions, 516 flow, removed 0 selfloop flow, removed 10 redundant places. [2024-11-08 17:51:57,080 INFO L231 Difference]: Finished difference. Result has 70 places, 69 transitions, 318 flow [2024-11-08 17:51:57,081 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=318, PETRI_PLACES=70, PETRI_TRANSITIONS=69} [2024-11-08 17:51:57,081 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 21 predicate places. [2024-11-08 17:51:57,081 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 69 transitions, 318 flow [2024-11-08 17:51:57,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:51:57,082 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:51:57,082 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:51:57,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 17:51:57,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-08 17:51:57,283 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-08 17:51:57,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:51:57,284 INFO L85 PathProgramCache]: Analyzing trace with hash -743289487, now seen corresponding path program 1 times [2024-11-08 17:51:57,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:51:57,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698555231] [2024-11-08 17:51:57,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:51:57,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:51:57,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:51:57,380 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-08 17:51:57,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:51:57,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698555231] [2024-11-08 17:51:57,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698555231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:51:57,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:51:57,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:51:57,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799142958] [2024-11-08 17:51:57,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:51:57,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:51:57,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:51:57,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:51:57,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:51:57,403 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 55 [2024-11-08 17:51:57,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 69 transitions, 318 flow. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:51:57,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:51:57,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 55 [2024-11-08 17:51:57,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:51:57,672 INFO L124 PetriNetUnfolderBase]: 599/1204 cut-off events. [2024-11-08 17:51:57,672 INFO L125 PetriNetUnfolderBase]: For 638/638 co-relation queries the response was YES. [2024-11-08 17:51:57,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2723 conditions, 1204 events. 599/1204 cut-off events. For 638/638 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 6046 event pairs, 155 based on Foata normal form. 24/1195 useless extension candidates. Maximal degree in co-relation 2572. Up to 588 conditions per place. [2024-11-08 17:51:57,680 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 66 selfloop transitions, 6 changer transitions 0/94 dead transitions. [2024-11-08 17:51:57,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 94 transitions, 538 flow [2024-11-08 17:51:57,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:51:57,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:51:57,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 153 transitions. [2024-11-08 17:51:57,682 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6954545454545454 [2024-11-08 17:51:57,682 INFO L175 Difference]: Start difference. First operand has 70 places, 69 transitions, 318 flow. Second operand 4 states and 153 transitions. [2024-11-08 17:51:57,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 94 transitions, 538 flow [2024-11-08 17:51:57,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 94 transitions, 528 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-08 17:51:57,688 INFO L231 Difference]: Finished difference. Result has 70 places, 69 transitions, 324 flow [2024-11-08 17:51:57,688 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=324, PETRI_PLACES=70, PETRI_TRANSITIONS=69} [2024-11-08 17:51:57,689 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 21 predicate places. [2024-11-08 17:51:57,689 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 69 transitions, 324 flow [2024-11-08 17:51:57,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:51:57,689 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:51:57,689 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:51:57,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 17:51:57,690 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-08 17:51:57,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:51:57,690 INFO L85 PathProgramCache]: Analyzing trace with hash 133016805, now seen corresponding path program 1 times [2024-11-08 17:51:57,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:51:57,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162624679] [2024-11-08 17:51:57,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:51:57,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:51:57,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:51:57,808 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-08 17:51:57,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:51:57,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162624679] [2024-11-08 17:51:57,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162624679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:51:57,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:51:57,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-08 17:51:57,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075238875] [2024-11-08 17:51:57,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:51:57,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:51:57,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:51:57,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:51:57,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:51:57,818 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 55 [2024-11-08 17:51:57,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 69 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:51:57,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:51:57,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 55 [2024-11-08 17:51:57,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:51:58,096 INFO L124 PetriNetUnfolderBase]: 598/1252 cut-off events. [2024-11-08 17:51:58,096 INFO L125 PetriNetUnfolderBase]: For 891/891 co-relation queries the response was YES. [2024-11-08 17:51:58,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2903 conditions, 1252 events. 598/1252 cut-off events. For 891/891 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 6914 event pairs, 316 based on Foata normal form. 12/1199 useless extension candidates. Maximal degree in co-relation 2752. Up to 686 conditions per place. [2024-11-08 17:51:58,104 INFO L140 encePairwiseOnDemand]: 51/55 looper letters, 56 selfloop transitions, 2 changer transitions 1/81 dead transitions. [2024-11-08 17:51:58,105 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 81 transitions, 493 flow [2024-11-08 17:51:58,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:51:58,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:51:58,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 120 transitions. [2024-11-08 17:51:58,106 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7272727272727273 [2024-11-08 17:51:58,106 INFO L175 Difference]: Start difference. First operand has 70 places, 69 transitions, 324 flow. Second operand 3 states and 120 transitions. [2024-11-08 17:51:58,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 81 transitions, 493 flow [2024-11-08 17:51:58,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 81 transitions, 478 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:51:58,110 INFO L231 Difference]: Finished difference. Result has 71 places, 69 transitions, 326 flow [2024-11-08 17:51:58,110 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=326, PETRI_PLACES=71, PETRI_TRANSITIONS=69} [2024-11-08 17:51:58,111 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 22 predicate places. [2024-11-08 17:51:58,111 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 69 transitions, 326 flow [2024-11-08 17:51:58,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:51:58,112 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:51:58,112 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:51:58,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 17:51:58,112 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-08 17:51:58,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:51:58,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1968691924, now seen corresponding path program 1 times [2024-11-08 17:51:58,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:51:58,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668008637] [2024-11-08 17:51:58,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:51:58,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:51:58,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:51:58,271 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-08 17:51:58,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:51:58,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668008637] [2024-11-08 17:51:58,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668008637] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:51:58,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684270693] [2024-11-08 17:51:58,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:51:58,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:51:58,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:51:58,274 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:51:58,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 17:51:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:51:58,412 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 17:51:58,415 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:51:58,453 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-08 17:51:58,453 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:51:58,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684270693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:51:58,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:51:58,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-08 17:51:58,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804419037] [2024-11-08 17:51:58,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:51:58,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:51:58,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:51:58,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:51:58,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:51:58,487 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 55 [2024-11-08 17:51:58,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 69 transitions, 326 flow. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 6 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:51:58,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:51:58,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 55 [2024-11-08 17:51:58,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:51:58,871 INFO L124 PetriNetUnfolderBase]: 680/1338 cut-off events. [2024-11-08 17:51:58,872 INFO L125 PetriNetUnfolderBase]: For 597/597 co-relation queries the response was YES. [2024-11-08 17:51:58,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3082 conditions, 1338 events. 680/1338 cut-off events. For 597/597 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 7016 event pairs, 37 based on Foata normal form. 27/1260 useless extension candidates. Maximal degree in co-relation 2928. Up to 383 conditions per place. [2024-11-08 17:51:58,880 INFO L140 encePairwiseOnDemand]: 51/55 looper letters, 85 selfloop transitions, 5 changer transitions 0/112 dead transitions. [2024-11-08 17:51:58,880 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 112 transitions, 670 flow [2024-11-08 17:51:58,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:51:58,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:51:58,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 227 transitions. [2024-11-08 17:51:58,882 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6878787878787879 [2024-11-08 17:51:58,882 INFO L175 Difference]: Start difference. First operand has 71 places, 69 transitions, 326 flow. Second operand 6 states and 227 transitions. [2024-11-08 17:51:58,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 112 transitions, 670 flow [2024-11-08 17:51:58,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 112 transitions, 664 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:51:58,888 INFO L231 Difference]: Finished difference. Result has 73 places, 68 transitions, 328 flow [2024-11-08 17:51:58,888 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=328, PETRI_PLACES=73, PETRI_TRANSITIONS=68} [2024-11-08 17:51:58,889 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 24 predicate places. [2024-11-08 17:51:58,889 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 68 transitions, 328 flow [2024-11-08 17:51:58,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 6 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:51:58,889 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:51:58,890 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:51:58,912 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 17:51:59,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:51:59,095 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-08 17:51:59,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:51:59,095 INFO L85 PathProgramCache]: Analyzing trace with hash 899908096, now seen corresponding path program 1 times [2024-11-08 17:51:59,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:51:59,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138919258] [2024-11-08 17:51:59,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:51:59,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:51:59,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:51:59,225 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-08 17:51:59,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:51:59,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138919258] [2024-11-08 17:51:59,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138919258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:51:59,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:51:59,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:51:59,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258076008] [2024-11-08 17:51:59,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:51:59,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:51:59,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:51:59,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:51:59,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:51:59,245 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 55 [2024-11-08 17:51:59,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 68 transitions, 328 flow. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:51:59,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:51:59,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 55 [2024-11-08 17:51:59,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:51:59,531 INFO L124 PetriNetUnfolderBase]: 733/1421 cut-off events. [2024-11-08 17:51:59,531 INFO L125 PetriNetUnfolderBase]: For 913/913 co-relation queries the response was YES. [2024-11-08 17:51:59,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3389 conditions, 1421 events. 733/1421 cut-off events. For 913/913 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 7605 event pairs, 115 based on Foata normal form. 27/1420 useless extension candidates. Maximal degree in co-relation 3236. Up to 778 conditions per place. [2024-11-08 17:51:59,540 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 62 selfloop transitions, 6 changer transitions 1/90 dead transitions. [2024-11-08 17:51:59,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 90 transitions, 547 flow [2024-11-08 17:51:59,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:51:59,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:51:59,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 150 transitions. [2024-11-08 17:51:59,542 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6818181818181818 [2024-11-08 17:51:59,542 INFO L175 Difference]: Start difference. First operand has 73 places, 68 transitions, 328 flow. Second operand 4 states and 150 transitions. [2024-11-08 17:51:59,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 90 transitions, 547 flow [2024-11-08 17:51:59,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 90 transitions, 534 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-08 17:51:59,547 INFO L231 Difference]: Finished difference. Result has 71 places, 68 transitions, 331 flow [2024-11-08 17:51:59,547 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=331, PETRI_PLACES=71, PETRI_TRANSITIONS=68} [2024-11-08 17:51:59,548 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 22 predicate places. [2024-11-08 17:51:59,549 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 68 transitions, 331 flow [2024-11-08 17:51:59,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:51:59,550 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:51:59,550 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:51:59,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 17:51:59,550 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-08 17:51:59,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:51:59,551 INFO L85 PathProgramCache]: Analyzing trace with hash -59207379, now seen corresponding path program 1 times [2024-11-08 17:51:59,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:51:59,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273372070] [2024-11-08 17:51:59,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:51:59,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:51:59,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:51:59,721 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-08 17:51:59,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:51:59,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273372070] [2024-11-08 17:51:59,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273372070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:51:59,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:51:59,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:51:59,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932820380] [2024-11-08 17:51:59,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:51:59,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:51:59,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:51:59,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:51:59,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:51:59,732 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 55 [2024-11-08 17:51:59,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 68 transitions, 331 flow. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:51:59,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:51:59,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 55 [2024-11-08 17:51:59,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:52:00,113 INFO L124 PetriNetUnfolderBase]: 864/1664 cut-off events. [2024-11-08 17:52:00,113 INFO L125 PetriNetUnfolderBase]: For 1142/1142 co-relation queries the response was YES. [2024-11-08 17:52:00,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4100 conditions, 1664 events. 864/1664 cut-off events. For 1142/1142 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9236 event pairs, 371 based on Foata normal form. 5/1576 useless extension candidates. Maximal degree in co-relation 3949. Up to 765 conditions per place. [2024-11-08 17:52:00,124 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 72 selfloop transitions, 6 changer transitions 2/99 dead transitions. [2024-11-08 17:52:00,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 99 transitions, 601 flow [2024-11-08 17:52:00,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:52:00,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 17:52:00,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 189 transitions. [2024-11-08 17:52:00,126 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6872727272727273 [2024-11-08 17:52:00,126 INFO L175 Difference]: Start difference. First operand has 71 places, 68 transitions, 331 flow. Second operand 5 states and 189 transitions. [2024-11-08 17:52:00,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 99 transitions, 601 flow [2024-11-08 17:52:00,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 99 transitions, 580 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:52:00,132 INFO L231 Difference]: Finished difference. Result has 75 places, 70 transitions, 351 flow [2024-11-08 17:52:00,133 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=351, PETRI_PLACES=75, PETRI_TRANSITIONS=70} [2024-11-08 17:52:00,133 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 26 predicate places. [2024-11-08 17:52:00,134 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 70 transitions, 351 flow [2024-11-08 17:52:00,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:52:00,134 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:52:00,134 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:52:00,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 17:52:00,135 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-08 17:52:00,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:52:00,135 INFO L85 PathProgramCache]: Analyzing trace with hash -527705, now seen corresponding path program 2 times [2024-11-08 17:52:00,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:52:00,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087455122] [2024-11-08 17:52:00,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:52:00,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:52:00,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:52:00,256 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-08 17:52:00,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:52:00,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087455122] [2024-11-08 17:52:00,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087455122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:52:00,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:52:00,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:52:00,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975030481] [2024-11-08 17:52:00,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:52:00,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:52:00,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:52:00,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:52:00,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:52:00,267 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 55 [2024-11-08 17:52:00,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 70 transitions, 351 flow. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:52:00,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:52:00,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 55 [2024-11-08 17:52:00,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:52:00,685 INFO L124 PetriNetUnfolderBase]: 1127/2194 cut-off events. [2024-11-08 17:52:00,685 INFO L125 PetriNetUnfolderBase]: For 1664/1664 co-relation queries the response was YES. [2024-11-08 17:52:00,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5555 conditions, 2194 events. 1127/2194 cut-off events. For 1664/1664 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 13359 event pairs, 420 based on Foata normal form. 52/2205 useless extension candidates. Maximal degree in co-relation 5400. Up to 1431 conditions per place. [2024-11-08 17:52:00,705 INFO L140 encePairwiseOnDemand]: 49/55 looper letters, 69 selfloop transitions, 4 changer transitions 3/95 dead transitions. [2024-11-08 17:52:00,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 95 transitions, 601 flow [2024-11-08 17:52:00,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:52:00,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:52:00,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 157 transitions. [2024-11-08 17:52:00,707 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7136363636363636 [2024-11-08 17:52:00,707 INFO L175 Difference]: Start difference. First operand has 75 places, 70 transitions, 351 flow. Second operand 4 states and 157 transitions. [2024-11-08 17:52:00,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 95 transitions, 601 flow [2024-11-08 17:52:00,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 95 transitions, 593 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:52:00,713 INFO L231 Difference]: Finished difference. Result has 79 places, 74 transitions, 400 flow [2024-11-08 17:52:00,713 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=400, PETRI_PLACES=79, PETRI_TRANSITIONS=74} [2024-11-08 17:52:00,714 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 30 predicate places. [2024-11-08 17:52:00,714 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 74 transitions, 400 flow [2024-11-08 17:52:00,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:52:00,714 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:52:00,714 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:52:00,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 17:52:00,715 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-08 17:52:00,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:52:00,715 INFO L85 PathProgramCache]: Analyzing trace with hash 250000525, now seen corresponding path program 3 times [2024-11-08 17:52:00,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:52:00,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983916574] [2024-11-08 17:52:00,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:52:00,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:52:00,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:52:00,841 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-08 17:52:00,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:52:00,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983916574] [2024-11-08 17:52:00,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983916574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:52:00,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:52:00,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:52:00,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719553159] [2024-11-08 17:52:00,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:52:00,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:52:00,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:52:00,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:52:00,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:52:00,853 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 55 [2024-11-08 17:52:00,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 74 transitions, 400 flow. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:52:00,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:52:00,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 55 [2024-11-08 17:52:00,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:52:01,248 INFO L124 PetriNetUnfolderBase]: 1000/1954 cut-off events. [2024-11-08 17:52:01,248 INFO L125 PetriNetUnfolderBase]: For 2399/2399 co-relation queries the response was YES. [2024-11-08 17:52:01,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5132 conditions, 1954 events. 1000/1954 cut-off events. For 2399/2399 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 11527 event pairs, 450 based on Foata normal form. 56/1977 useless extension candidates. Maximal degree in co-relation 4976. Up to 813 conditions per place. [2024-11-08 17:52:01,265 INFO L140 encePairwiseOnDemand]: 49/55 looper letters, 74 selfloop transitions, 7 changer transitions 3/103 dead transitions. [2024-11-08 17:52:01,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 103 transitions, 671 flow [2024-11-08 17:52:01,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:52:01,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:52:01,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 164 transitions. [2024-11-08 17:52:01,266 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7454545454545455 [2024-11-08 17:52:01,266 INFO L175 Difference]: Start difference. First operand has 79 places, 74 transitions, 400 flow. Second operand 4 states and 164 transitions. [2024-11-08 17:52:01,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 103 transitions, 671 flow [2024-11-08 17:52:01,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 103 transitions, 667 flow, removed 2 selfloop flow, removed 0 redundant places. [2024-11-08 17:52:01,273 INFO L231 Difference]: Finished difference. Result has 83 places, 74 transitions, 422 flow [2024-11-08 17:52:01,273 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=422, PETRI_PLACES=83, PETRI_TRANSITIONS=74} [2024-11-08 17:52:01,274 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 34 predicate places. [2024-11-08 17:52:01,274 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 74 transitions, 422 flow [2024-11-08 17:52:01,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:52:01,274 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:52:01,274 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:52:01,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 17:52:01,275 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-08 17:52:01,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:52:01,275 INFO L85 PathProgramCache]: Analyzing trace with hash 215343554, now seen corresponding path program 1 times [2024-11-08 17:52:01,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:52:01,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170964313] [2024-11-08 17:52:01,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:52:01,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:52:01,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:52:01,426 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-08 17:52:01,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:52:01,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170964313] [2024-11-08 17:52:01,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170964313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:52:01,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:52:01,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:52:01,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544008454] [2024-11-08 17:52:01,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:52:01,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:52:01,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:52:01,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:52:01,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:52:01,435 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 55 [2024-11-08 17:52:01,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 74 transitions, 422 flow. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:52:01,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:52:01,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 55 [2024-11-08 17:52:01,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:52:01,786 INFO L124 PetriNetUnfolderBase]: 824/1736 cut-off events. [2024-11-08 17:52:01,786 INFO L125 PetriNetUnfolderBase]: For 2541/2543 co-relation queries the response was YES. [2024-11-08 17:52:01,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4480 conditions, 1736 events. 824/1736 cut-off events. For 2541/2543 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 10614 event pairs, 137 based on Foata normal form. 9/1718 useless extension candidates. Maximal degree in co-relation 4322. Up to 1140 conditions per place. [2024-11-08 17:52:01,795 INFO L140 encePairwiseOnDemand]: 52/55 looper letters, 61 selfloop transitions, 2 changer transitions 1/87 dead transitions. [2024-11-08 17:52:01,796 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 87 transitions, 621 flow [2024-11-08 17:52:01,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:52:01,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:52:01,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 146 transitions. [2024-11-08 17:52:01,797 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6636363636363637 [2024-11-08 17:52:01,797 INFO L175 Difference]: Start difference. First operand has 83 places, 74 transitions, 422 flow. Second operand 4 states and 146 transitions. [2024-11-08 17:52:01,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 87 transitions, 621 flow [2024-11-08 17:52:01,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 87 transitions, 592 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-08 17:52:01,803 INFO L231 Difference]: Finished difference. Result has 81 places, 74 transitions, 407 flow [2024-11-08 17:52:01,803 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=397, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=407, PETRI_PLACES=81, PETRI_TRANSITIONS=74} [2024-11-08 17:52:01,804 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 32 predicate places. [2024-11-08 17:52:01,804 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 74 transitions, 407 flow [2024-11-08 17:52:01,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:52:01,804 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:52:01,804 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:52:01,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 17:52:01,805 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-08 17:52:01,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:52:01,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1798105984, now seen corresponding path program 1 times [2024-11-08 17:52:01,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:52:01,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623291599] [2024-11-08 17:52:01,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:52:01,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:52:01,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:52:01,955 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-08 17:52:01,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:52:01,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623291599] [2024-11-08 17:52:01,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623291599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:52:01,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:52:01,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:52:01,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331766208] [2024-11-08 17:52:01,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:52:01,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:52:01,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:52:01,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:52:01,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:52:01,965 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 55 [2024-11-08 17:52:01,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 74 transitions, 407 flow. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:52:01,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:52:01,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 55 [2024-11-08 17:52:01,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:52:02,344 INFO L124 PetriNetUnfolderBase]: 824/1727 cut-off events. [2024-11-08 17:52:02,345 INFO L125 PetriNetUnfolderBase]: For 1841/1843 co-relation queries the response was YES. [2024-11-08 17:52:02,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4465 conditions, 1727 events. 824/1727 cut-off events. For 1841/1843 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 10556 event pairs, 137 based on Foata normal form. 10/1702 useless extension candidates. Maximal degree in co-relation 4306. Up to 1132 conditions per place. [2024-11-08 17:52:02,351 INFO L140 encePairwiseOnDemand]: 52/55 looper letters, 0 selfloop transitions, 0 changer transitions 86/86 dead transitions. [2024-11-08 17:52:02,352 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 86 transitions, 594 flow [2024-11-08 17:52:02,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:52:02,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:52:02,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 145 transitions. [2024-11-08 17:52:02,353 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6590909090909091 [2024-11-08 17:52:02,353 INFO L175 Difference]: Start difference. First operand has 81 places, 74 transitions, 407 flow. Second operand 4 states and 145 transitions. [2024-11-08 17:52:02,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 86 transitions, 594 flow [2024-11-08 17:52:02,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 86 transitions, 591 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:52:02,360 INFO L231 Difference]: Finished difference. Result has 81 places, 0 transitions, 0 flow [2024-11-08 17:52:02,360 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=81, PETRI_TRANSITIONS=0} [2024-11-08 17:52:02,361 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 32 predicate places. [2024-11-08 17:52:02,361 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 0 transitions, 0 flow [2024-11-08 17:52:02,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:52:02,365 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2024-11-08 17:52:02,366 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2024-11-08 17:52:02,366 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2024-11-08 17:52:02,367 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2024-11-08 17:52:02,367 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2024-11-08 17:52:02,367 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2024-11-08 17:52:02,368 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2024-11-08 17:52:02,368 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2024-11-08 17:52:02,368 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2024-11-08 17:52:02,368 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2024-11-08 17:52:02,368 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 16 remaining) [2024-11-08 17:52:02,369 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2024-11-08 17:52:02,369 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2024-11-08 17:52:02,369 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2024-11-08 17:52:02,370 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2024-11-08 17:52:02,370 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2024-11-08 17:52:02,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 17:52:02,371 INFO L407 BasicCegarLoop]: Path program histogram: [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:52:02,377 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-08 17:52:02,378 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 17:52:02,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:52:02 BasicIcfg [2024-11-08 17:52:02,385 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 17:52:02,386 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 17:52:02,386 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 17:52:02,386 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 17:52:02,387 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:51:48" (3/4) ... [2024-11-08 17:52:02,389 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 17:52:02,393 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-08 17:52:02,393 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-08 17:52:02,402 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 108 nodes and edges [2024-11-08 17:52:02,403 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2024-11-08 17:52:02,403 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-08 17:52:02,403 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-08 17:52:02,543 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 17:52:02,544 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 17:52:02,544 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 17:52:02,545 INFO L158 Benchmark]: Toolchain (without parser) took 16048.30ms. Allocated memory was 140.5MB in the beginning and 333.4MB in the end (delta: 192.9MB). Free memory was 99.8MB in the beginning and 262.3MB in the end (delta: -162.5MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. [2024-11-08 17:52:02,545 INFO L158 Benchmark]: CDTParser took 1.56ms. Allocated memory is still 140.5MB. Free memory is still 109.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:52:02,546 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.16ms. Allocated memory is still 140.5MB. Free memory was 99.4MB in the beginning and 86.0MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 17:52:02,546 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.85ms. Allocated memory is still 140.5MB. Free memory was 86.0MB in the beginning and 83.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:52:02,547 INFO L158 Benchmark]: Boogie Preprocessor took 61.11ms. Allocated memory is still 140.5MB. Free memory was 83.9MB in the beginning and 81.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:52:02,547 INFO L158 Benchmark]: RCFGBuilder took 1157.64ms. Allocated memory was 140.5MB in the beginning and 190.8MB in the end (delta: 50.3MB). Free memory was 80.9MB in the beginning and 138.5MB in the end (delta: -57.6MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. [2024-11-08 17:52:02,548 INFO L158 Benchmark]: TraceAbstraction took 14209.29ms. Allocated memory was 190.8MB in the beginning and 333.4MB in the end (delta: 142.6MB). Free memory was 138.5MB in the beginning and 267.5MB in the end (delta: -129.0MB). Peak memory consumption was 147.3MB. Max. memory is 16.1GB. [2024-11-08 17:52:02,549 INFO L158 Benchmark]: Witness Printer took 158.55ms. Allocated memory is still 333.4MB. Free memory was 267.5MB in the beginning and 262.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 17:52:02,552 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.56ms. Allocated memory is still 140.5MB. Free memory is still 109.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 383.16ms. Allocated memory is still 140.5MB. Free memory was 99.4MB in the beginning and 86.0MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.85ms. Allocated memory is still 140.5MB. Free memory was 86.0MB in the beginning and 83.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.11ms. Allocated memory is still 140.5MB. Free memory was 83.9MB in the beginning and 81.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1157.64ms. Allocated memory was 140.5MB in the beginning and 190.8MB in the end (delta: 50.3MB). Free memory was 80.9MB in the beginning and 138.5MB in the end (delta: -57.6MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. * TraceAbstraction took 14209.29ms. Allocated memory was 190.8MB in the beginning and 333.4MB in the end (delta: 142.6MB). Free memory was 138.5MB in the beginning and 267.5MB in the end (delta: -129.0MB). Peak memory consumption was 147.3MB. Max. memory is 16.1GB. * Witness Printer took 158.55ms. Allocated memory is still 333.4MB. Free memory was 267.5MB in the beginning and 262.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: 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, 68 locations, 16 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: 14.0s, OverallIterations: 19, TraceHistogramMax: 5, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 7.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 970 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 821 mSDsluCounter, 266 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 175 mSDsCounter, 179 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2592 IncrementalHoareTripleChecker+Invalid, 2771 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 179 mSolverCounterUnsat, 91 mSDtfsCounter, 2592 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 413 GetRequests, 284 SyntacticMatches, 5 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=422occurred in iteration=17, InterpolantAutomatonStates: 104, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 955 NumberOfCodeBlocks, 907 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 1019 ConstructedInterpolants, 0 QuantifiedInterpolants, 1827 SizeOfPredicates, 21 NumberOfNonLiveVariables, 1058 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 30 InterpolantComputations, 15 PerfectInterpolantSequences, 1233/1368 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-08 17:52:02,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e03bfb-8bfe-4454-b0fe-c254f3a60d79/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE