./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix039.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b 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_c8ab7628-e27b-4fb0-833d-d23a8835d8d9/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ab7628-e27b-4fb0-833d-d23a8835d8d9/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ab7628-e27b-4fb0-833d-d23a8835d8d9/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ab7628-e27b-4fb0-833d-d23a8835d8d9/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix039.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ab7628-e27b-4fb0-833d-d23a8835d8d9/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ab7628-e27b-4fb0-833d-d23a8835d8d9/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 42c5ff0d69642601057eb29fc7d78b67af5ab0b43644460199f4561abe049d3b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:54:18,673 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:54:18,768 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ab7628-e27b-4fb0-833d-d23a8835d8d9/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 21:54:18,774 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:54:18,775 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:54:18,802 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:54:18,803 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:54:18,804 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:54:18,806 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:54:18,810 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:54:18,811 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:54:18,812 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:54:18,813 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:54:18,814 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:54:18,815 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:54:18,815 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:54:18,816 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:54:18,816 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:54:18,816 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:54:18,817 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:54:18,817 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:54:18,818 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:54:18,818 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 21:54:18,819 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:54:18,819 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:54:18,819 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:54:18,820 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:54:18,821 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:54:18,821 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:54:18,822 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:54:18,823 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:54:18,823 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:54:18,823 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:54:18,824 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:54:18,824 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:54:18,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:54:18,824 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:54:18,825 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:54:18,825 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:54:18,825 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:54:18,825 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:54:18,826 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_c8ab7628-e27b-4fb0-833d-d23a8835d8d9/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ab7628-e27b-4fb0-833d-d23a8835d8d9/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42c5ff0d69642601057eb29fc7d78b67af5ab0b43644460199f4561abe049d3b [2023-11-06 21:54:19,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:54:19,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:54:19,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:54:19,112 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:54:19,113 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:54:19,114 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ab7628-e27b-4fb0-833d-d23a8835d8d9/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-wmm/mix039.oepc.i [2023-11-06 21:54:22,332 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:54:22,612 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:54:22,615 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ab7628-e27b-4fb0-833d-d23a8835d8d9/sv-benchmarks/c/pthread-wmm/mix039.oepc.i [2023-11-06 21:54:22,647 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ab7628-e27b-4fb0-833d-d23a8835d8d9/bin/uautomizer-verify-WvqO1wxjHP/data/fe49167a2/397b029b7ff545458f8a6f1a8fa28fa4/FLAGd9d6f0da4 [2023-11-06 21:54:22,667 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ab7628-e27b-4fb0-833d-d23a8835d8d9/bin/uautomizer-verify-WvqO1wxjHP/data/fe49167a2/397b029b7ff545458f8a6f1a8fa28fa4 [2023-11-06 21:54:22,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:54:22,676 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:54:22,679 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:54:22,679 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:54:22,684 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:54:22,685 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:54:22" (1/1) ... [2023-11-06 21:54:22,686 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@573994b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:22, skipping insertion in model container [2023-11-06 21:54:22,686 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:54:22" (1/1) ... [2023-11-06 21:54:22,759 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:54:23,206 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:54:23,218 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:54:23,303 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:54:23,356 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:54:23,356 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:54:23,365 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:54:23,365 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:23 WrapperNode [2023-11-06 21:54:23,366 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:54:23,367 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:54:23,367 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:54:23,367 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:54:23,376 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:23" (1/1) ... [2023-11-06 21:54:23,415 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:23" (1/1) ... [2023-11-06 21:54:23,457 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 153 [2023-11-06 21:54:23,458 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:54:23,459 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:54:23,459 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:54:23,459 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:54:23,469 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:23" (1/1) ... [2023-11-06 21:54:23,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:23" (1/1) ... [2023-11-06 21:54:23,483 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:23" (1/1) ... [2023-11-06 21:54:23,486 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:23" (1/1) ... [2023-11-06 21:54:23,497 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:23" (1/1) ... [2023-11-06 21:54:23,516 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:23" (1/1) ... [2023-11-06 21:54:23,519 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:23" (1/1) ... [2023-11-06 21:54:23,521 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:23" (1/1) ... [2023-11-06 21:54:23,532 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:54:23,533 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:54:23,533 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:54:23,533 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:54:23,534 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:23" (1/1) ... [2023-11-06 21:54:23,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:54:23,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ab7628-e27b-4fb0-833d-d23a8835d8d9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:54:23,578 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ab7628-e27b-4fb0-833d-d23a8835d8d9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:54:23,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ab7628-e27b-4fb0-833d-d23a8835d8d9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:54:23,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:54:23,690 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 21:54:23,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:54:23,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:54:23,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:54:23,691 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-06 21:54:23,691 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-06 21:54:23,691 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-06 21:54:23,691 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-06 21:54:23,691 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-06 21:54:23,692 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-06 21:54:23,692 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-06 21:54:23,694 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-06 21:54:23,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:54:23,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 21:54:23,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:54:23,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:54:23,696 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 21:54:23,878 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:54:23,881 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:54:24,281 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:54:24,495 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:54:24,496 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 21:54:24,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:54:24 BoogieIcfgContainer [2023-11-06 21:54:24,499 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:54:24,504 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:54:24,504 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:54:24,507 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:54:24,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:54:22" (1/3) ... [2023-11-06 21:54:24,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f4ba431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:54:24, skipping insertion in model container [2023-11-06 21:54:24,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:23" (2/3) ... [2023-11-06 21:54:24,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f4ba431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:54:24, skipping insertion in model container [2023-11-06 21:54:24,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:54:24" (3/3) ... [2023-11-06 21:54:24,514 INFO L112 eAbstractionObserver]: Analyzing ICFG mix039.oepc.i [2023-11-06 21:54:24,523 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 21:54:24,534 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:54:24,535 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-06 21:54:24,535 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 21:54:24,621 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 21:54:24,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 147 transitions, 310 flow [2023-11-06 21:54:24,787 INFO L124 PetriNetUnfolderBase]: 3/143 cut-off events. [2023-11-06 21:54:24,787 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:54:24,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 143 events. 3/143 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 110 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 104. Up to 2 conditions per place. [2023-11-06 21:54:24,797 INFO L82 GeneralOperation]: Start removeDead. Operand has 157 places, 147 transitions, 310 flow [2023-11-06 21:54:24,811 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 153 places, 143 transitions, 298 flow [2023-11-06 21:54:24,816 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 21:54:24,845 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 153 places, 143 transitions, 298 flow [2023-11-06 21:54:24,848 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 153 places, 143 transitions, 298 flow [2023-11-06 21:54:24,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 153 places, 143 transitions, 298 flow [2023-11-06 21:54:24,885 INFO L124 PetriNetUnfolderBase]: 3/143 cut-off events. [2023-11-06 21:54:24,885 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:54:24,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 143 events. 3/143 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 110 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 104. Up to 2 conditions per place. [2023-11-06 21:54:24,891 INFO L119 LiptonReduction]: Number of co-enabled transitions 4800 [2023-11-06 21:54:29,980 INFO L134 LiptonReduction]: Checked pairs total: 16237 [2023-11-06 21:54:29,980 INFO L136 LiptonReduction]: Total number of compositions: 117 [2023-11-06 21:54:29,996 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:54:30,003 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@334c8b72, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:54:30,004 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-06 21:54:30,009 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 21:54:30,009 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-11-06 21:54:30,009 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:54:30,010 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:54:30,010 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 21:54:30,011 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-06 21:54:30,016 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:54:30,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1761580307, now seen corresponding path program 1 times [2023-11-06 21:54:30,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:54:30,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400169548] [2023-11-06 21:54:30,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:54:30,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:54:30,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:30,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:54:30,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:54:30,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400169548] [2023-11-06 21:54:30,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400169548] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:54:30,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:54:30,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 21:54:30,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936034310] [2023-11-06 21:54:30,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:54:30,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:54:30,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:54:30,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:54:30,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:54:30,518 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 264 [2023-11-06 21:54:30,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 37 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 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) [2023-11-06 21:54:30,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:54:30,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 264 [2023-11-06 21:54:30,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:54:32,936 INFO L124 PetriNetUnfolderBase]: 9639/13062 cut-off events. [2023-11-06 21:54:32,936 INFO L125 PetriNetUnfolderBase]: For 134/134 co-relation queries the response was YES. [2023-11-06 21:54:32,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26330 conditions, 13062 events. 9639/13062 cut-off events. For 134/134 co-relation queries the response was YES. Maximal size of possible extension queue 538. Compared 67445 event pairs, 9639 based on Foata normal form. 0/10492 useless extension candidates. Maximal degree in co-relation 26318. Up to 12950 conditions per place. [2023-11-06 21:54:33,059 INFO L140 encePairwiseOnDemand]: 258/264 looper letters, 27 selfloop transitions, 1 changer transitions 0/32 dead transitions. [2023-11-06 21:54:33,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 32 transitions, 132 flow [2023-11-06 21:54:33,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:54:33,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:54:33,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 390 transitions. [2023-11-06 21:54:33,075 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49242424242424243 [2023-11-06 21:54:33,076 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 390 transitions. [2023-11-06 21:54:33,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 390 transitions. [2023-11-06 21:54:33,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:54:33,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 390 transitions. [2023-11-06 21:54:33,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 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) [2023-11-06 21:54:33,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 264.0) internal successors, (1056), 4 states have internal predecessors, (1056), 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) [2023-11-06 21:54:33,092 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 264.0) internal successors, (1056), 4 states have internal predecessors, (1056), 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) [2023-11-06 21:54:33,094 INFO L175 Difference]: Start difference. First operand has 49 places, 37 transitions, 86 flow. Second operand 3 states and 390 transitions. [2023-11-06 21:54:33,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 32 transitions, 132 flow [2023-11-06 21:54:33,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 32 transitions, 128 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 21:54:33,104 INFO L231 Difference]: Finished difference. Result has 43 places, 32 transitions, 74 flow [2023-11-06 21:54:33,106 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=43, PETRI_TRANSITIONS=32} [2023-11-06 21:54:33,109 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -6 predicate places. [2023-11-06 21:54:33,110 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 32 transitions, 74 flow [2023-11-06 21:54:33,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 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) [2023-11-06 21:54:33,111 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:54:33,111 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 21:54:33,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:54:33,111 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-06 21:54:33,112 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:54:33,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1761580308, now seen corresponding path program 1 times [2023-11-06 21:54:33,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:54:33,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924824752] [2023-11-06 21:54:33,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:54:33,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:54:33,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:33,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:54:33,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:54:33,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924824752] [2023-11-06 21:54:33,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924824752] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:54:33,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:54:33,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 21:54:33,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668251277] [2023-11-06 21:54:33,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:54:33,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:54:33,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:54:33,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:54:33,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:54:33,224 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 264 [2023-11-06 21:54:33,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 32 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 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) [2023-11-06 21:54:33,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:54:33,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 264 [2023-11-06 21:54:33,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:54:34,699 INFO L124 PetriNetUnfolderBase]: 6207/8632 cut-off events. [2023-11-06 21:54:34,700 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:54:34,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17438 conditions, 8632 events. 6207/8632 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 45417 event pairs, 1715 based on Foata normal form. 0/7447 useless extension candidates. Maximal degree in co-relation 17432. Up to 6853 conditions per place. [2023-11-06 21:54:34,777 INFO L140 encePairwiseOnDemand]: 255/264 looper letters, 45 selfloop transitions, 5 changer transitions 0/54 dead transitions. [2023-11-06 21:54:34,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 54 transitions, 224 flow [2023-11-06 21:54:34,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:54:34,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:54:34,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 411 transitions. [2023-11-06 21:54:34,782 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5189393939393939 [2023-11-06 21:54:34,783 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 411 transitions. [2023-11-06 21:54:34,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 411 transitions. [2023-11-06 21:54:34,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:54:34,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 411 transitions. [2023-11-06 21:54:34,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 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) [2023-11-06 21:54:34,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 264.0) internal successors, (1056), 4 states have internal predecessors, (1056), 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) [2023-11-06 21:54:34,796 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 264.0) internal successors, (1056), 4 states have internal predecessors, (1056), 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) [2023-11-06 21:54:34,797 INFO L175 Difference]: Start difference. First operand has 43 places, 32 transitions, 74 flow. Second operand 3 states and 411 transitions. [2023-11-06 21:54:34,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 54 transitions, 224 flow [2023-11-06 21:54:34,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 54 transitions, 223 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 21:54:34,800 INFO L231 Difference]: Finished difference. Result has 45 places, 36 transitions, 112 flow [2023-11-06 21:54:34,806 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=45, PETRI_TRANSITIONS=36} [2023-11-06 21:54:34,808 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -4 predicate places. [2023-11-06 21:54:34,808 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 36 transitions, 112 flow [2023-11-06 21:54:34,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 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) [2023-11-06 21:54:34,809 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:54:34,809 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:54:34,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 21:54:34,809 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-06 21:54:34,812 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:54:34,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1168094444, now seen corresponding path program 1 times [2023-11-06 21:54:34,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:54:34,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743021352] [2023-11-06 21:54:34,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:54:34,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:54:34,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:34,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:54:34,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:54:34,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743021352] [2023-11-06 21:54:34,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743021352] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:54:34,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:54:34,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:54:34,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374348249] [2023-11-06 21:54:34,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:54:34,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:54:34,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:54:34,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:54:34,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:54:34,966 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 264 [2023-11-06 21:54:34,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 36 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 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) [2023-11-06 21:54:34,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:54:34,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 264 [2023-11-06 21:54:34,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:54:36,062 INFO L124 PetriNetUnfolderBase]: 4260/5963 cut-off events. [2023-11-06 21:54:36,062 INFO L125 PetriNetUnfolderBase]: For 475/475 co-relation queries the response was YES. [2023-11-06 21:54:36,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14268 conditions, 5963 events. 4260/5963 cut-off events. For 475/475 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 30151 event pairs, 1261 based on Foata normal form. 0/5694 useless extension candidates. Maximal degree in co-relation 14260. Up to 2277 conditions per place. [2023-11-06 21:54:36,103 INFO L140 encePairwiseOnDemand]: 255/264 looper letters, 61 selfloop transitions, 9 changer transitions 0/74 dead transitions. [2023-11-06 21:54:36,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 74 transitions, 346 flow [2023-11-06 21:54:36,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:54:36,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 21:54:36,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 550 transitions. [2023-11-06 21:54:36,107 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5208333333333334 [2023-11-06 21:54:36,107 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 550 transitions. [2023-11-06 21:54:36,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 550 transitions. [2023-11-06 21:54:36,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:54:36,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 550 transitions. [2023-11-06 21:54:36,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 137.5) internal successors, (550), 4 states have internal predecessors, (550), 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) [2023-11-06 21:54:36,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 264.0) internal successors, (1320), 5 states have internal predecessors, (1320), 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) [2023-11-06 21:54:36,114 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 264.0) internal successors, (1320), 5 states have internal predecessors, (1320), 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) [2023-11-06 21:54:36,114 INFO L175 Difference]: Start difference. First operand has 45 places, 36 transitions, 112 flow. Second operand 4 states and 550 transitions. [2023-11-06 21:54:36,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 74 transitions, 346 flow [2023-11-06 21:54:36,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 74 transitions, 341 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 21:54:36,126 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 165 flow [2023-11-06 21:54:36,126 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=165, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2023-11-06 21:54:36,128 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -1 predicate places. [2023-11-06 21:54:36,128 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 165 flow [2023-11-06 21:54:36,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 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) [2023-11-06 21:54:36,129 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:54:36,129 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:54:36,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 21:54:36,134 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-06 21:54:36,134 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:54:36,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1629133269, now seen corresponding path program 1 times [2023-11-06 21:54:36,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:54:36,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997332073] [2023-11-06 21:54:36,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:54:36,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:54:36,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:36,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:54:36,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:54:36,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997332073] [2023-11-06 21:54:36,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997332073] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:54:36,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:54:36,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:54:36,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766951557] [2023-11-06 21:54:36,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:54:36,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:54:36,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:54:36,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:54:36,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:54:36,341 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 264 [2023-11-06 21:54:36,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 165 flow. Second operand has 5 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 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) [2023-11-06 21:54:36,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:54:36,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 264 [2023-11-06 21:54:36,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:54:37,349 INFO L124 PetriNetUnfolderBase]: 3939/5456 cut-off events. [2023-11-06 21:54:37,349 INFO L125 PetriNetUnfolderBase]: For 3249/3249 co-relation queries the response was YES. [2023-11-06 21:54:37,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14274 conditions, 5456 events. 3939/5456 cut-off events. For 3249/3249 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 27151 event pairs, 1217 based on Foata normal form. 0/5397 useless extension candidates. Maximal degree in co-relation 14264. Up to 2277 conditions per place. [2023-11-06 21:54:37,385 INFO L140 encePairwiseOnDemand]: 255/264 looper letters, 71 selfloop transitions, 13 changer transitions 4/92 dead transitions. [2023-11-06 21:54:37,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 92 transitions, 473 flow [2023-11-06 21:54:37,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 21:54:37,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 21:54:37,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 687 transitions. [2023-11-06 21:54:37,389 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5204545454545455 [2023-11-06 21:54:37,389 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 687 transitions. [2023-11-06 21:54:37,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 687 transitions. [2023-11-06 21:54:37,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:54:37,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 687 transitions. [2023-11-06 21:54:37,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 137.4) internal successors, (687), 5 states have internal predecessors, (687), 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) [2023-11-06 21:54:37,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 264.0) internal successors, (1584), 6 states have internal predecessors, (1584), 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) [2023-11-06 21:54:37,459 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 264.0) internal successors, (1584), 6 states have internal predecessors, (1584), 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) [2023-11-06 21:54:37,459 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 165 flow. Second operand 5 states and 687 transitions. [2023-11-06 21:54:37,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 92 transitions, 473 flow [2023-11-06 21:54:37,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 92 transitions, 455 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-11-06 21:54:37,468 INFO L231 Difference]: Finished difference. Result has 51 places, 40 transitions, 189 flow [2023-11-06 21:54:37,468 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=189, PETRI_PLACES=51, PETRI_TRANSITIONS=40} [2023-11-06 21:54:37,469 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 2 predicate places. [2023-11-06 21:54:37,469 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 40 transitions, 189 flow [2023-11-06 21:54:37,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 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) [2023-11-06 21:54:37,470 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:54:37,471 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:54:37,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 21:54:37,471 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-06 21:54:37,472 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:54:37,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1585523870, now seen corresponding path program 1 times [2023-11-06 21:54:37,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:54:37,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069717047] [2023-11-06 21:54:37,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:54:37,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:54:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:37,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:54:37,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:54:37,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069717047] [2023-11-06 21:54:37,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069717047] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:54:37,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:54:37,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 21:54:37,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199358992] [2023-11-06 21:54:37,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:54:37,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:54:37,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:54:37,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:54:37,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:54:37,739 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 264 [2023-11-06 21:54:37,741 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 40 transitions, 189 flow. Second operand has 6 states, 6 states have (on average 122.5) internal successors, (735), 6 states have internal predecessors, (735), 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) [2023-11-06 21:54:37,741 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:54:37,741 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 264 [2023-11-06 21:54:37,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:54:38,876 INFO L124 PetriNetUnfolderBase]: 3912/5409 cut-off events. [2023-11-06 21:54:38,877 INFO L125 PetriNetUnfolderBase]: For 3955/3955 co-relation queries the response was YES. [2023-11-06 21:54:38,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14505 conditions, 5409 events. 3912/5409 cut-off events. For 3955/3955 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 26988 event pairs, 1217 based on Foata normal form. 16/5382 useless extension candidates. Maximal degree in co-relation 14494. Up to 2277 conditions per place. [2023-11-06 21:54:38,898 INFO L140 encePairwiseOnDemand]: 255/264 looper letters, 0 selfloop transitions, 0 changer transitions 84/84 dead transitions. [2023-11-06 21:54:38,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 84 transitions, 425 flow [2023-11-06 21:54:38,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:54:38,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 21:54:38,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 798 transitions. [2023-11-06 21:54:38,903 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5037878787878788 [2023-11-06 21:54:38,903 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 798 transitions. [2023-11-06 21:54:38,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 798 transitions. [2023-11-06 21:54:38,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:54:38,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 798 transitions. [2023-11-06 21:54:38,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 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) [2023-11-06 21:54:38,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 264.0) internal successors, (1848), 7 states have internal predecessors, (1848), 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) [2023-11-06 21:54:38,914 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 264.0) internal successors, (1848), 7 states have internal predecessors, (1848), 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) [2023-11-06 21:54:38,914 INFO L175 Difference]: Start difference. First operand has 51 places, 40 transitions, 189 flow. Second operand 6 states and 798 transitions. [2023-11-06 21:54:38,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 84 transitions, 425 flow [2023-11-06 21:54:39,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 84 transitions, 370 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-11-06 21:54:39,036 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2023-11-06 21:54:39,037 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2023-11-06 21:54:39,038 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2023-11-06 21:54:39,038 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2023-11-06 21:54:39,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 122.5) internal successors, (735), 6 states have internal predecessors, (735), 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) [2023-11-06 21:54:39,041 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-11-06 21:54:39,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-11-06 21:54:39,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-11-06 21:54:39,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-11-06 21:54:39,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-11-06 21:54:39,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-11-06 21:54:39,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-11-06 21:54:39,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-11-06 21:54:39,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-11-06 21:54:39,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-11-06 21:54:39,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-11-06 21:54:39,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-11-06 21:54:39,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-11-06 21:54:39,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-11-06 21:54:39,046 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-11-06 21:54:39,046 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-11-06 21:54:39,046 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-11-06 21:54:39,047 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-11-06 21:54:39,047 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-11-06 21:54:39,047 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-11-06 21:54:39,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 21:54:39,048 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-06 21:54:39,054 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 21:54:39,054 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 21:54:39,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:54:39 BasicIcfg [2023-11-06 21:54:39,058 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 21:54:39,059 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 21:54:39,059 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 21:54:39,059 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 21:54:39,060 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:54:24" (3/4) ... [2023-11-06 21:54:39,062 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 21:54:39,064 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-06 21:54:39,065 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-06 21:54:39,065 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-06 21:54:39,065 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-06 21:54:39,071 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-06 21:54:39,071 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-06 21:54:39,072 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 21:54:39,072 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 21:54:39,129 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ab7628-e27b-4fb0-833d-d23a8835d8d9/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 21:54:39,129 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ab7628-e27b-4fb0-833d-d23a8835d8d9/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 21:54:39,130 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 21:54:39,130 INFO L158 Benchmark]: Toolchain (without parser) took 16454.43ms. Allocated memory was 169.9MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 124.5MB in the beginning and 515.2MB in the end (delta: -390.7MB). Peak memory consumption was 614.2MB. Max. memory is 16.1GB. [2023-11-06 21:54:39,131 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 113.2MB. Free memory was 63.7MB in the beginning and 63.5MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:54:39,131 INFO L158 Benchmark]: CACSL2BoogieTranslator took 687.24ms. Allocated memory is still 169.9MB. Free memory was 124.1MB in the beginning and 99.9MB in the end (delta: 24.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-06 21:54:39,132 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.13ms. Allocated memory is still 169.9MB. Free memory was 99.9MB in the beginning and 97.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 21:54:39,132 INFO L158 Benchmark]: Boogie Preprocessor took 73.56ms. Allocated memory is still 169.9MB. Free memory was 97.2MB in the beginning and 95.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:54:39,133 INFO L158 Benchmark]: RCFGBuilder took 966.36ms. Allocated memory is still 169.9MB. Free memory was 95.1MB in the beginning and 101.9MB in the end (delta: -6.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-06 21:54:39,133 INFO L158 Benchmark]: TraceAbstraction took 14554.43ms. Allocated memory was 169.9MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 101.2MB in the beginning and 518.3MB in the end (delta: -417.1MB). Peak memory consumption was 589.8MB. Max. memory is 16.1GB. [2023-11-06 21:54:39,133 INFO L158 Benchmark]: Witness Printer took 70.91ms. Allocated memory is still 1.2GB. Free memory was 518.3MB in the beginning and 515.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:54:39,136 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 113.2MB. Free memory was 63.7MB in the beginning and 63.5MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 687.24ms. Allocated memory is still 169.9MB. Free memory was 124.1MB in the beginning and 99.9MB in the end (delta: 24.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.13ms. Allocated memory is still 169.9MB. Free memory was 99.9MB in the beginning and 97.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.56ms. Allocated memory is still 169.9MB. Free memory was 97.2MB in the beginning and 95.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 966.36ms. Allocated memory is still 169.9MB. Free memory was 95.1MB in the beginning and 101.9MB in the end (delta: -6.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 14554.43ms. Allocated memory was 169.9MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 101.2MB in the beginning and 518.3MB in the end (delta: -417.1MB). Peak memory consumption was 589.8MB. Max. memory is 16.1GB. * Witness Printer took 70.91ms. Allocated memory is still 1.2GB. Free memory was 518.3MB in the beginning and 515.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.1s, 153 PlacesBefore, 49 PlacesAfterwards, 143 TransitionsBefore, 37 TransitionsAfterwards, 4800 CoEnabledTransitionPairs, 7 FixpointIterations, 43 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 117 TotalNumberOfCompositions, 16237 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6385, independent: 6014, independent conditional: 0, independent unconditional: 6014, dependent: 371, dependent conditional: 0, dependent unconditional: 371, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2580, independent: 2504, independent conditional: 0, independent unconditional: 2504, dependent: 76, dependent conditional: 0, dependent unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6385, independent: 3510, independent conditional: 0, independent unconditional: 3510, dependent: 295, dependent conditional: 0, dependent unconditional: 295, unknown: 2580, unknown conditional: 0, unknown unconditional: 2580] , Statistics on independence cache: Total cache size (in pairs): 220, Positive cache size: 194, Positive conditional cache size: 0, Positive unconditional cache size: 194, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 777]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 777]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 797]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 797]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 817]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 817]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 856]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 856]: 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 9 procedures, 191 locations, 20 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: 14.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 240 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 210 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 65 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 368 IncrementalHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 65 mSolverCounterUnsat, 15 mSDtfsCounter, 368 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=189occurred in iteration=4, InterpolantAutomatonStates: 21, 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: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 186 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 21:54:39,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ab7628-e27b-4fb0-833d-d23a8835d8d9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE