./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-more-dec-subseq.wvr.c --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_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/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_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-dec-subseq.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/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_507f8fc9-eae2-49e2-be2a-97963b89fd5b/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 ecda181bd3fe1882667151a04232fb9d04292dd6ca3491d98fdc8de5d539856a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:37:59,323 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:37:59,454 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:37:59,463 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:37:59,464 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:37:59,505 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:37:59,506 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:37:59,506 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:37:59,507 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:37:59,513 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:37:59,515 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:37:59,515 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:37:59,516 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:37:59,518 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:37:59,518 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:37:59,519 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:37:59,519 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:37:59,520 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:37:59,520 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:37:59,521 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:37:59,521 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:37:59,522 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:37:59,522 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:37:59,523 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:37:59,523 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:37:59,524 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:37:59,524 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:37:59,525 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:37:59,526 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:37:59,526 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:37:59,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:37:59,528 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:37:59,529 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:37:59,529 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:37:59,529 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:37:59,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:37:59,530 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:37:59,530 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:37:59,530 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:37:59,531 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:37:59,531 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:37:59,532 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_507f8fc9-eae2-49e2-be2a-97963b89fd5b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ecda181bd3fe1882667151a04232fb9d04292dd6ca3491d98fdc8de5d539856a [2023-11-06 22:37:59,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:37:59,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:37:59,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:37:59,984 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:37:59,984 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:37:59,986 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/popl20-more-dec-subseq.wvr.c [2023-11-06 22:38:03,166 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:38:03,467 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:38:03,468 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/sv-benchmarks/c/weaver/popl20-more-dec-subseq.wvr.c [2023-11-06 22:38:03,478 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/data/1b96acb90/866d30973b384f1184e460fc8787663b/FLAGf59761873 [2023-11-06 22:38:03,496 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/data/1b96acb90/866d30973b384f1184e460fc8787663b [2023-11-06 22:38:03,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:38:03,501 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:38:03,503 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:38:03,503 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:38:03,510 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:38:03,511 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:38:03" (1/1) ... [2023-11-06 22:38:03,512 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b5f56d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:03, skipping insertion in model container [2023-11-06 22:38:03,513 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:38:03" (1/1) ... [2023-11-06 22:38:03,555 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:38:03,818 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:38:03,831 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:38:03,867 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:38:03,876 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:38:03,877 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:38:03,886 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:38:03,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:03 WrapperNode [2023-11-06 22:38:03,886 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:38:03,888 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:38:03,893 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:38:03,893 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:38:03,903 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:03" (1/1) ... [2023-11-06 22:38:03,925 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:03" (1/1) ... [2023-11-06 22:38:03,960 INFO L138 Inliner]: procedures = 24, calls = 46, calls flagged for inlining = 12, calls inlined = 14, statements flattened = 209 [2023-11-06 22:38:03,960 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:38:03,961 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:38:03,961 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:38:03,962 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:38:03,972 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:03" (1/1) ... [2023-11-06 22:38:03,972 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:03" (1/1) ... [2023-11-06 22:38:03,977 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:03" (1/1) ... [2023-11-06 22:38:03,977 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:03" (1/1) ... [2023-11-06 22:38:03,988 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:03" (1/1) ... [2023-11-06 22:38:03,993 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:03" (1/1) ... [2023-11-06 22:38:03,996 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:03" (1/1) ... [2023-11-06 22:38:03,998 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:03" (1/1) ... [2023-11-06 22:38:04,002 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:38:04,003 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:38:04,003 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:38:04,003 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:38:04,004 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:03" (1/1) ... [2023-11-06 22:38:04,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:38:04,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:04,047 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:38:04,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:38:04,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:38:04,097 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 22:38:04,097 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 22:38:04,097 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 22:38:04,098 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 22:38:04,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:38:04,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:38:04,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:38:04,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:38:04,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:38:04,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:38:04,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:38:04,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:38:04,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:38:04,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:38:04,103 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 22:38:04,209 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:38:04,210 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:38:04,697 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:38:04,927 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:38:04,928 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-06 22:38:04,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:38:04 BoogieIcfgContainer [2023-11-06 22:38:04,931 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:38:04,935 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:38:04,935 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:38:04,939 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:38:04,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:38:03" (1/3) ... [2023-11-06 22:38:04,940 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56f4ce4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:38:04, skipping insertion in model container [2023-11-06 22:38:04,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:03" (2/3) ... [2023-11-06 22:38:04,941 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56f4ce4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:38:04, skipping insertion in model container [2023-11-06 22:38:04,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:38:04" (3/3) ... [2023-11-06 22:38:04,943 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-dec-subseq.wvr.c [2023-11-06 22:38:04,954 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:38:04,967 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:38:04,967 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-11-06 22:38:04,968 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:38:05,049 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 22:38:05,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 200 places, 208 transitions, 430 flow [2023-11-06 22:38:05,211 INFO L124 PetriNetUnfolderBase]: 15/206 cut-off events. [2023-11-06 22:38:05,212 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:38:05,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 206 events. 15/206 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 159 event pairs, 0 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 167. Up to 2 conditions per place. [2023-11-06 22:38:05,219 INFO L82 GeneralOperation]: Start removeDead. Operand has 200 places, 208 transitions, 430 flow [2023-11-06 22:38:05,227 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 177 places, 184 transitions, 377 flow [2023-11-06 22:38:05,232 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:38:05,245 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 177 places, 184 transitions, 377 flow [2023-11-06 22:38:05,248 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 177 places, 184 transitions, 377 flow [2023-11-06 22:38:05,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 177 places, 184 transitions, 377 flow [2023-11-06 22:38:05,305 INFO L124 PetriNetUnfolderBase]: 14/184 cut-off events. [2023-11-06 22:38:05,305 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:38:05,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 184 events. 14/184 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 157 event pairs, 0 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 167. Up to 2 conditions per place. [2023-11-06 22:38:05,310 INFO L119 LiptonReduction]: Number of co-enabled transitions 942 [2023-11-06 22:38:13,296 INFO L134 LiptonReduction]: Checked pairs total: 1558 [2023-11-06 22:38:13,297 INFO L136 LiptonReduction]: Total number of compositions: 198 [2023-11-06 22:38:13,319 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:38:13,326 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;@78850ddd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:38:13,327 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-11-06 22:38:13,330 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:38:13,330 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-11-06 22:38:13,330 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:38:13,330 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:38:13,331 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-06 22:38:13,332 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-06 22:38:13,338 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:13,338 INFO L85 PathProgramCache]: Analyzing trace with hash 27167, now seen corresponding path program 1 times [2023-11-06 22:38:13,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:38:13,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134825592] [2023-11-06 22:38:13,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:13,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:38:13,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:13,764 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 22:38:13,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:38:13,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134825592] [2023-11-06 22:38:13,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134825592] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:38:13,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:38:13,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:38:13,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153452703] [2023-11-06 22:38:13,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:38:13,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:38:13,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:38:13,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:38:13,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:38:13,861 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 406 [2023-11-06 22:38:13,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 31 transitions, 71 flow. Second operand has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 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 22:38:13,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:38:13,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 406 [2023-11-06 22:38:13,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:38:14,027 INFO L124 PetriNetUnfolderBase]: 179/294 cut-off events. [2023-11-06 22:38:14,027 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-06 22:38:14,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 611 conditions, 294 events. 179/294 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1098 event pairs, 106 based on Foata normal form. 0/159 useless extension candidates. Maximal degree in co-relation 524. Up to 288 conditions per place. [2023-11-06 22:38:14,037 INFO L140 encePairwiseOnDemand]: 395/406 looper letters, 27 selfloop transitions, 5 changer transitions 0/33 dead transitions. [2023-11-06 22:38:14,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 33 transitions, 139 flow [2023-11-06 22:38:14,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:38:14,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:38:14,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2023-11-06 22:38:14,070 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45977011494252873 [2023-11-06 22:38:14,071 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 560 transitions. [2023-11-06 22:38:14,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 560 transitions. [2023-11-06 22:38:14,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:38:14,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 560 transitions. [2023-11-06 22:38:14,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 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 22:38:14,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 406.0) internal successors, (1624), 4 states have internal predecessors, (1624), 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 22:38:14,098 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 406.0) internal successors, (1624), 4 states have internal predecessors, (1624), 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 22:38:14,100 INFO L175 Difference]: Start difference. First operand has 33 places, 31 transitions, 71 flow. Second operand 3 states and 560 transitions. [2023-11-06 22:38:14,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 33 transitions, 139 flow [2023-11-06 22:38:14,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 33 transitions, 134 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 22:38:14,108 INFO L231 Difference]: Finished difference. Result has 32 places, 33 transitions, 106 flow [2023-11-06 22:38:14,111 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=406, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=32, PETRI_TRANSITIONS=33} [2023-11-06 22:38:14,117 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -1 predicate places. [2023-11-06 22:38:14,118 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 33 transitions, 106 flow [2023-11-06 22:38:14,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 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 22:38:14,119 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:38:14,119 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:38:14,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:38:14,120 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-06 22:38:14,122 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:14,123 INFO L85 PathProgramCache]: Analyzing trace with hash 843242, now seen corresponding path program 1 times [2023-11-06 22:38:14,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:38:14,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515874871] [2023-11-06 22:38:14,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:14,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:38:14,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:14,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:38:14,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:38:14,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515874871] [2023-11-06 22:38:14,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515874871] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:38:14,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:38:14,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:38:14,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677353160] [2023-11-06 22:38:14,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:38:14,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:38:14,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:38:14,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:38:14,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:38:14,328 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 406 [2023-11-06 22:38:14,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 33 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 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 22:38:14,330 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:38:14,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 406 [2023-11-06 22:38:14,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:38:14,479 INFO L124 PetriNetUnfolderBase]: 179/292 cut-off events. [2023-11-06 22:38:14,480 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:38:14,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 617 conditions, 292 events. 179/292 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1106 event pairs, 106 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 575. Up to 280 conditions per place. [2023-11-06 22:38:14,484 INFO L140 encePairwiseOnDemand]: 402/406 looper letters, 27 selfloop transitions, 3 changer transitions 0/31 dead transitions. [2023-11-06 22:38:14,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 31 transitions, 158 flow [2023-11-06 22:38:14,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:38:14,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:38:14,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 550 transitions. [2023-11-06 22:38:14,488 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.451559934318555 [2023-11-06 22:38:14,488 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 550 transitions. [2023-11-06 22:38:14,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 550 transitions. [2023-11-06 22:38:14,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:38:14,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 550 transitions. [2023-11-06 22:38:14,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 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 22:38:14,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 406.0) internal successors, (1624), 4 states have internal predecessors, (1624), 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 22:38:14,501 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 406.0) internal successors, (1624), 4 states have internal predecessors, (1624), 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 22:38:14,501 INFO L175 Difference]: Start difference. First operand has 32 places, 33 transitions, 106 flow. Second operand 3 states and 550 transitions. [2023-11-06 22:38:14,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 31 transitions, 158 flow [2023-11-06 22:38:14,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 31 transitions, 148 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:38:14,504 INFO L231 Difference]: Finished difference. Result has 30 places, 31 transitions, 94 flow [2023-11-06 22:38:14,504 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=406, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=30, PETRI_TRANSITIONS=31} [2023-11-06 22:38:14,505 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -3 predicate places. [2023-11-06 22:38:14,506 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 31 transitions, 94 flow [2023-11-06 22:38:14,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 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 22:38:14,507 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:38:14,507 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:38:14,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:38:14,508 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-06 22:38:14,508 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:14,508 INFO L85 PathProgramCache]: Analyzing trace with hash 843250, now seen corresponding path program 1 times [2023-11-06 22:38:14,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:38:14,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187233901] [2023-11-06 22:38:14,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:14,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:38:14,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:14,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:38:14,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:38:14,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187233901] [2023-11-06 22:38:14,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187233901] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:38:14,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223616210] [2023-11-06 22:38:14,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:14,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:38:14,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:14,629 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:38:14,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:38:14,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:14,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:38:14,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:38:14,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:38:14,778 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:38:14,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:38:14,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223616210] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:38:14,797 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:38:14,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2023-11-06 22:38:14,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818640145] [2023-11-06 22:38:14,798 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:38:14,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:38:14,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:38:14,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:38:14,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:38:14,880 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 406 [2023-11-06 22:38:14,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 31 transitions, 94 flow. Second operand has 7 states, 7 states have (on average 175.14285714285714) internal successors, (1226), 7 states have internal predecessors, (1226), 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 22:38:14,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:38:14,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 406 [2023-11-06 22:38:14,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:38:15,039 INFO L124 PetriNetUnfolderBase]: 185/304 cut-off events. [2023-11-06 22:38:15,040 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:38:15,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 654 conditions, 304 events. 185/304 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1168 event pairs, 106 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 575. Up to 289 conditions per place. [2023-11-06 22:38:15,043 INFO L140 encePairwiseOnDemand]: 399/406 looper letters, 25 selfloop transitions, 17 changer transitions 0/43 dead transitions. [2023-11-06 22:38:15,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 43 transitions, 232 flow [2023-11-06 22:38:15,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:38:15,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:38:15,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1092 transitions. [2023-11-06 22:38:15,049 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4482758620689655 [2023-11-06 22:38:15,049 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1092 transitions. [2023-11-06 22:38:15,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1092 transitions. [2023-11-06 22:38:15,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:38:15,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1092 transitions. [2023-11-06 22:38:15,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 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 22:38:15,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 406.0) internal successors, (2842), 7 states have internal predecessors, (2842), 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 22:38:15,064 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 406.0) internal successors, (2842), 7 states have internal predecessors, (2842), 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 22:38:15,064 INFO L175 Difference]: Start difference. First operand has 30 places, 31 transitions, 94 flow. Second operand 6 states and 1092 transitions. [2023-11-06 22:38:15,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 43 transitions, 232 flow [2023-11-06 22:38:15,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 43 transitions, 220 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:38:15,067 INFO L231 Difference]: Finished difference. Result has 36 places, 43 transitions, 206 flow [2023-11-06 22:38:15,068 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=406, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=206, PETRI_PLACES=36, PETRI_TRANSITIONS=43} [2023-11-06 22:38:15,069 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 3 predicate places. [2023-11-06 22:38:15,069 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 43 transitions, 206 flow [2023-11-06 22:38:15,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 175.14285714285714) internal successors, (1226), 7 states have internal predecessors, (1226), 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 22:38:15,071 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:38:15,071 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:38:15,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-06 22:38:15,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:38:15,277 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-06 22:38:15,277 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:15,277 INFO L85 PathProgramCache]: Analyzing trace with hash -626001193, now seen corresponding path program 1 times [2023-11-06 22:38:15,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:38:15,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595464187] [2023-11-06 22:38:15,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:15,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:38:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:15,420 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 22:38:15,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:38:15,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595464187] [2023-11-06 22:38:15,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595464187] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:38:15,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:38:15,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:38:15,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825710019] [2023-11-06 22:38:15,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:38:15,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:38:15,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:38:15,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:38:15,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:38:15,529 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 406 [2023-11-06 22:38:15,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 43 transitions, 206 flow. Second operand has 4 states, 4 states have (on average 171.5) internal successors, (686), 4 states have internal predecessors, (686), 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 22:38:15,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:38:15,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 406 [2023-11-06 22:38:15,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:38:15,703 INFO L124 PetriNetUnfolderBase]: 228/398 cut-off events. [2023-11-06 22:38:15,703 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-06 22:38:15,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 916 conditions, 398 events. 228/398 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1686 event pairs, 139 based on Foata normal form. 6/249 useless extension candidates. Maximal degree in co-relation 822. Up to 299 conditions per place. [2023-11-06 22:38:15,711 INFO L140 encePairwiseOnDemand]: 397/406 looper letters, 57 selfloop transitions, 5 changer transitions 4/67 dead transitions. [2023-11-06 22:38:15,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 67 transitions, 447 flow [2023-11-06 22:38:15,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:38:15,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:38:15,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 900 transitions. [2023-11-06 22:38:15,717 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4433497536945813 [2023-11-06 22:38:15,717 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 900 transitions. [2023-11-06 22:38:15,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 900 transitions. [2023-11-06 22:38:15,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:38:15,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 900 transitions. [2023-11-06 22:38:15,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 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 22:38:15,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 406.0) internal successors, (2436), 6 states have internal predecessors, (2436), 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 22:38:15,730 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 406.0) internal successors, (2436), 6 states have internal predecessors, (2436), 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 22:38:15,731 INFO L175 Difference]: Start difference. First operand has 36 places, 43 transitions, 206 flow. Second operand 5 states and 900 transitions. [2023-11-06 22:38:15,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 67 transitions, 447 flow [2023-11-06 22:38:15,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 67 transitions, 407 flow, removed 15 selfloop flow, removed 1 redundant places. [2023-11-06 22:38:15,741 INFO L231 Difference]: Finished difference. Result has 41 places, 45 transitions, 218 flow [2023-11-06 22:38:15,741 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=406, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=218, PETRI_PLACES=41, PETRI_TRANSITIONS=45} [2023-11-06 22:38:15,743 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 8 predicate places. [2023-11-06 22:38:15,744 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 45 transitions, 218 flow [2023-11-06 22:38:15,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 171.5) internal successors, (686), 4 states have internal predecessors, (686), 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 22:38:15,748 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:38:15,748 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:38:15,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:38:15,749 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-06 22:38:15,752 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:15,753 INFO L85 PathProgramCache]: Analyzing trace with hash -625999475, now seen corresponding path program 1 times [2023-11-06 22:38:15,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:38:15,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118838244] [2023-11-06 22:38:15,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:15,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:38:15,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:15,866 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 22:38:15,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:38:15,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118838244] [2023-11-06 22:38:15,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118838244] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:38:15,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:38:15,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:38:15,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353022389] [2023-11-06 22:38:15,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:38:15,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:38:15,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:38:15,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:38:15,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:38:15,884 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 406 [2023-11-06 22:38:15,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 45 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 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 22:38:15,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:38:15,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 406 [2023-11-06 22:38:15,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:38:16,070 INFO L124 PetriNetUnfolderBase]: 408/688 cut-off events. [2023-11-06 22:38:16,071 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2023-11-06 22:38:16,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1674 conditions, 688 events. 408/688 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3238 event pairs, 106 based on Foata normal form. 0/482 useless extension candidates. Maximal degree in co-relation 1587. Up to 396 conditions per place. [2023-11-06 22:38:16,077 INFO L140 encePairwiseOnDemand]: 402/406 looper letters, 58 selfloop transitions, 2 changer transitions 0/61 dead transitions. [2023-11-06 22:38:16,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 61 transitions, 381 flow [2023-11-06 22:38:16,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:38:16,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:38:16,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 593 transitions. [2023-11-06 22:38:16,081 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48686371100164205 [2023-11-06 22:38:16,081 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 593 transitions. [2023-11-06 22:38:16,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 593 transitions. [2023-11-06 22:38:16,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:38:16,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 593 transitions. [2023-11-06 22:38:16,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 197.66666666666666) internal successors, (593), 3 states have internal predecessors, (593), 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 22:38:16,088 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 406.0) internal successors, (1624), 4 states have internal predecessors, (1624), 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 22:38:16,089 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 406.0) internal successors, (1624), 4 states have internal predecessors, (1624), 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 22:38:16,090 INFO L175 Difference]: Start difference. First operand has 41 places, 45 transitions, 218 flow. Second operand 3 states and 593 transitions. [2023-11-06 22:38:16,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 61 transitions, 381 flow [2023-11-06 22:38:16,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 61 transitions, 373 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-11-06 22:38:16,096 INFO L231 Difference]: Finished difference. Result has 43 places, 46 transitions, 224 flow [2023-11-06 22:38:16,096 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=406, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=43, PETRI_TRANSITIONS=46} [2023-11-06 22:38:16,097 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 10 predicate places. [2023-11-06 22:38:16,098 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 46 transitions, 224 flow [2023-11-06 22:38:16,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 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 22:38:16,098 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:38:16,098 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2023-11-06 22:38:16,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:38:16,099 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-06 22:38:16,099 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:16,099 INFO L85 PathProgramCache]: Analyzing trace with hash -647723801, now seen corresponding path program 2 times [2023-11-06 22:38:16,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:38:16,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254581763] [2023-11-06 22:38:16,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:16,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:38:16,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:16,266 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:38:16,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:38:16,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254581763] [2023-11-06 22:38:16,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254581763] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:38:16,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821546206] [2023-11-06 22:38:16,268 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:38:16,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:38:16,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:16,270 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:38:16,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:38:16,372 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:38:16,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:38:16,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:38:16,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:38:16,414 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-06 22:38:16,414 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:38:16,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821546206] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:38:16,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:38:16,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2023-11-06 22:38:16,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340673548] [2023-11-06 22:38:16,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:38:16,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:38:16,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:38:16,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:38:16,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:38:16,448 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 406 [2023-11-06 22:38:16,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 46 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 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 22:38:16,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:38:16,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 406 [2023-11-06 22:38:16,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:38:16,599 INFO L124 PetriNetUnfolderBase]: 408/687 cut-off events. [2023-11-06 22:38:16,599 INFO L125 PetriNetUnfolderBase]: For 83/91 co-relation queries the response was YES. [2023-11-06 22:38:16,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1754 conditions, 687 events. 408/687 cut-off events. For 83/91 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 3278 event pairs, 264 based on Foata normal form. 1/475 useless extension candidates. Maximal degree in co-relation 1672. Up to 674 conditions per place. [2023-11-06 22:38:16,606 INFO L140 encePairwiseOnDemand]: 403/406 looper letters, 38 selfloop transitions, 6 changer transitions 0/45 dead transitions. [2023-11-06 22:38:16,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 45 transitions, 302 flow [2023-11-06 22:38:16,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:38:16,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:38:16,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2023-11-06 22:38:16,610 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45977011494252873 [2023-11-06 22:38:16,610 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 560 transitions. [2023-11-06 22:38:16,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 560 transitions. [2023-11-06 22:38:16,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:38:16,611 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 560 transitions. [2023-11-06 22:38:16,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 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 22:38:16,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 406.0) internal successors, (1624), 4 states have internal predecessors, (1624), 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 22:38:16,618 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 406.0) internal successors, (1624), 4 states have internal predecessors, (1624), 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 22:38:16,618 INFO L175 Difference]: Start difference. First operand has 43 places, 46 transitions, 224 flow. Second operand 3 states and 560 transitions. [2023-11-06 22:38:16,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 45 transitions, 302 flow [2023-11-06 22:38:16,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 45 transitions, 300 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:38:16,621 INFO L231 Difference]: Finished difference. Result has 43 places, 45 transitions, 224 flow [2023-11-06 22:38:16,622 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=406, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=43, PETRI_TRANSITIONS=45} [2023-11-06 22:38:16,622 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 10 predicate places. [2023-11-06 22:38:16,623 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 45 transitions, 224 flow [2023-11-06 22:38:16,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 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 22:38:16,623 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:38:16,624 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:38:16,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:38:16,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:38:16,829 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-06 22:38:16,829 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:16,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1417122082, now seen corresponding path program 1 times [2023-11-06 22:38:16,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:38:16,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198507674] [2023-11-06 22:38:16,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:16,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:38:16,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:16,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:38:16,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:38:16,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198507674] [2023-11-06 22:38:16,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198507674] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:38:16,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:38:16,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:38:16,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15646167] [2023-11-06 22:38:16,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:38:16,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:38:16,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:38:16,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:38:16,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:38:17,046 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 406 [2023-11-06 22:38:17,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 45 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 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 22:38:17,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:38:17,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 406 [2023-11-06 22:38:17,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:38:17,212 INFO L124 PetriNetUnfolderBase]: 406/685 cut-off events. [2023-11-06 22:38:17,212 INFO L125 PetriNetUnfolderBase]: For 84/92 co-relation queries the response was YES. [2023-11-06 22:38:17,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1732 conditions, 685 events. 406/685 cut-off events. For 84/92 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 3254 event pairs, 264 based on Foata normal form. 2/475 useless extension candidates. Maximal degree in co-relation 1648. Up to 673 conditions per place. [2023-11-06 22:38:17,219 INFO L140 encePairwiseOnDemand]: 403/406 looper letters, 35 selfloop transitions, 7 changer transitions 0/43 dead transitions. [2023-11-06 22:38:17,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 43 transitions, 292 flow [2023-11-06 22:38:17,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:38:17,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:38:17,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 543 transitions. [2023-11-06 22:38:17,222 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4458128078817734 [2023-11-06 22:38:17,223 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 543 transitions. [2023-11-06 22:38:17,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 543 transitions. [2023-11-06 22:38:17,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:38:17,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 543 transitions. [2023-11-06 22:38:17,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 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 22:38:17,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 406.0) internal successors, (1624), 4 states have internal predecessors, (1624), 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 22:38:17,229 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 406.0) internal successors, (1624), 4 states have internal predecessors, (1624), 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 22:38:17,229 INFO L175 Difference]: Start difference. First operand has 43 places, 45 transitions, 224 flow. Second operand 3 states and 543 transitions. [2023-11-06 22:38:17,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 43 transitions, 292 flow [2023-11-06 22:38:17,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 43 transitions, 280 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:38:17,232 INFO L231 Difference]: Finished difference. Result has 43 places, 43 transitions, 210 flow [2023-11-06 22:38:17,233 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=406, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=210, PETRI_PLACES=43, PETRI_TRANSITIONS=43} [2023-11-06 22:38:17,233 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 10 predicate places. [2023-11-06 22:38:17,234 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 43 transitions, 210 flow [2023-11-06 22:38:17,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 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 22:38:17,234 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:38:17,235 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1] [2023-11-06 22:38:17,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:38:17,235 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-06 22:38:17,235 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:17,235 INFO L85 PathProgramCache]: Analyzing trace with hash 2068184494, now seen corresponding path program 1 times [2023-11-06 22:38:17,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:38:17,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761953477] [2023-11-06 22:38:17,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:17,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:38:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:17,385 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:38:17,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:38:17,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761953477] [2023-11-06 22:38:17,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761953477] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:38:17,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929122796] [2023-11-06 22:38:17,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:17,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:38:17,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:17,388 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:38:17,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:38:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:17,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:38:17,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:38:17,517 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:38:17,517 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:38:17,587 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:38:17,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929122796] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:38:17,588 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:38:17,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-06 22:38:17,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160916058] [2023-11-06 22:38:17,588 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:38:17,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-06 22:38:17,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:38:17,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-06 22:38:17,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:38:17,746 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 406 [2023-11-06 22:38:17,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 43 transitions, 210 flow. Second operand has 13 states, 13 states have (on average 175.15384615384616) internal successors, (2277), 13 states have internal predecessors, (2277), 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 22:38:17,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:38:17,750 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 406 [2023-11-06 22:38:17,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:38:18,008 INFO L124 PetriNetUnfolderBase]: 424/721 cut-off events. [2023-11-06 22:38:18,009 INFO L125 PetriNetUnfolderBase]: For 120/128 co-relation queries the response was YES. [2023-11-06 22:38:18,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1877 conditions, 721 events. 424/721 cut-off events. For 120/128 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 3461 event pairs, 264 based on Foata normal form. 12/509 useless extension candidates. Maximal degree in co-relation 1649. Up to 675 conditions per place. [2023-11-06 22:38:18,016 INFO L140 encePairwiseOnDemand]: 400/406 looper letters, 25 selfloop transitions, 41 changer transitions 0/67 dead transitions. [2023-11-06 22:38:18,016 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 67 transitions, 492 flow [2023-11-06 22:38:18,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:38:18,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-06 22:38:18,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2158 transitions. [2023-11-06 22:38:18,026 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4429392446633826 [2023-11-06 22:38:18,026 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2158 transitions. [2023-11-06 22:38:18,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2158 transitions. [2023-11-06 22:38:18,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:38:18,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2158 transitions. [2023-11-06 22:38:18,036 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 179.83333333333334) internal successors, (2158), 12 states have internal predecessors, (2158), 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 22:38:18,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 406.0) internal successors, (5278), 13 states have internal predecessors, (5278), 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 22:38:18,049 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 406.0) internal successors, (5278), 13 states have internal predecessors, (5278), 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 22:38:18,050 INFO L175 Difference]: Start difference. First operand has 43 places, 43 transitions, 210 flow. Second operand 12 states and 2158 transitions. [2023-11-06 22:38:18,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 67 transitions, 492 flow [2023-11-06 22:38:18,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 67 transitions, 463 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-11-06 22:38:18,054 INFO L231 Difference]: Finished difference. Result has 58 places, 67 transitions, 467 flow [2023-11-06 22:38:18,054 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=406, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=467, PETRI_PLACES=58, PETRI_TRANSITIONS=67} [2023-11-06 22:38:18,055 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 25 predicate places. [2023-11-06 22:38:18,056 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 67 transitions, 467 flow [2023-11-06 22:38:18,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 175.15384615384616) internal successors, (2277), 13 states have internal predecessors, (2277), 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 22:38:18,057 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:38:18,058 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:38:18,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:38:18,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:38:18,264 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-06 22:38:18,264 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:18,265 INFO L85 PathProgramCache]: Analyzing trace with hash 980516472, now seen corresponding path program 1 times [2023-11-06 22:38:18,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:38:18,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330865821] [2023-11-06 22:38:18,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:18,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:38:18,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:18,456 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:38:18,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:38:18,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330865821] [2023-11-06 22:38:18,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330865821] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:38:18,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123332605] [2023-11-06 22:38:18,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:18,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:38:18,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:18,459 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:38:18,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:38:18,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:18,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:38:18,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:38:18,612 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:38:18,613 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:38:18,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123332605] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:38:18,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:38:18,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2023-11-06 22:38:18,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981776750] [2023-11-06 22:38:18,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:38:18,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:38:18,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:38:18,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:38:18,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:38:18,621 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 406 [2023-11-06 22:38:18,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 67 transitions, 467 flow. Second operand has 3 states, 3 states have (on average 184.66666666666666) internal successors, (554), 3 states have internal predecessors, (554), 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 22:38:18,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:38:18,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 406 [2023-11-06 22:38:18,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:38:18,791 INFO L124 PetriNetUnfolderBase]: 315/560 cut-off events. [2023-11-06 22:38:18,791 INFO L125 PetriNetUnfolderBase]: For 125/128 co-relation queries the response was YES. [2023-11-06 22:38:18,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1552 conditions, 560 events. 315/560 cut-off events. For 125/128 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2595 event pairs, 197 based on Foata normal form. 0/443 useless extension candidates. Maximal degree in co-relation 1429. Up to 552 conditions per place. [2023-11-06 22:38:18,798 INFO L140 encePairwiseOnDemand]: 403/406 looper letters, 60 selfloop transitions, 1 changer transitions 3/65 dead transitions. [2023-11-06 22:38:18,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 65 transitions, 587 flow [2023-11-06 22:38:18,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:38:18,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:38:18,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 571 transitions. [2023-11-06 22:38:18,803 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4688013136288998 [2023-11-06 22:38:18,803 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 571 transitions. [2023-11-06 22:38:18,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 571 transitions. [2023-11-06 22:38:18,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:38:18,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 571 transitions. [2023-11-06 22:38:18,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 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 22:38:18,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 406.0) internal successors, (1624), 4 states have internal predecessors, (1624), 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 22:38:18,812 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 406.0) internal successors, (1624), 4 states have internal predecessors, (1624), 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 22:38:18,812 INFO L175 Difference]: Start difference. First operand has 58 places, 67 transitions, 467 flow. Second operand 3 states and 571 transitions. [2023-11-06 22:38:18,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 65 transitions, 587 flow [2023-11-06 22:38:18,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 65 transitions, 463 flow, removed 39 selfloop flow, removed 5 redundant places. [2023-11-06 22:38:18,819 INFO L231 Difference]: Finished difference. Result has 53 places, 62 transitions, 330 flow [2023-11-06 22:38:18,820 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=406, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=53, PETRI_TRANSITIONS=62} [2023-11-06 22:38:18,821 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 20 predicate places. [2023-11-06 22:38:18,822 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 62 transitions, 330 flow [2023-11-06 22:38:18,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.66666666666666) internal successors, (554), 3 states have internal predecessors, (554), 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 22:38:18,822 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:38:18,823 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:38:18,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:38:19,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:38:19,029 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-06 22:38:19,030 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:19,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1023765744, now seen corresponding path program 1 times [2023-11-06 22:38:19,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:38:19,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974835153] [2023-11-06 22:38:19,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:19,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:38:19,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:19,088 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:38:19,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:38:19,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974835153] [2023-11-06 22:38:19,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974835153] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:38:19,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:38:19,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:38:19,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737198277] [2023-11-06 22:38:19,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:38:19,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:38:19,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:38:19,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:38:19,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:38:19,106 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 406 [2023-11-06 22:38:19,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 62 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 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 22:38:19,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:38:19,107 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 406 [2023-11-06 22:38:19,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:38:19,194 INFO L124 PetriNetUnfolderBase]: 228/400 cut-off events. [2023-11-06 22:38:19,194 INFO L125 PetriNetUnfolderBase]: For 122/125 co-relation queries the response was YES. [2023-11-06 22:38:19,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1094 conditions, 400 events. 228/400 cut-off events. For 122/125 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1604 event pairs, 129 based on Foata normal form. 0/334 useless extension candidates. Maximal degree in co-relation 1072. Up to 394 conditions per place. [2023-11-06 22:38:19,198 INFO L140 encePairwiseOnDemand]: 404/406 looper letters, 59 selfloop transitions, 1 changer transitions 0/61 dead transitions. [2023-11-06 22:38:19,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 61 transitions, 446 flow [2023-11-06 22:38:19,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:38:19,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:38:19,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 569 transitions. [2023-11-06 22:38:19,201 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4671592775041051 [2023-11-06 22:38:19,201 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 569 transitions. [2023-11-06 22:38:19,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 569 transitions. [2023-11-06 22:38:19,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:38:19,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 569 transitions. [2023-11-06 22:38:19,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 189.66666666666666) internal successors, (569), 3 states have internal predecessors, (569), 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 22:38:19,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 406.0) internal successors, (1624), 4 states have internal predecessors, (1624), 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 22:38:19,209 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 406.0) internal successors, (1624), 4 states have internal predecessors, (1624), 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 22:38:19,209 INFO L175 Difference]: Start difference. First operand has 53 places, 62 transitions, 330 flow. Second operand 3 states and 569 transitions. [2023-11-06 22:38:19,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 61 transitions, 446 flow [2023-11-06 22:38:19,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 61 transitions, 445 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:38:19,216 INFO L231 Difference]: Finished difference. Result has 50 places, 61 transitions, 327 flow [2023-11-06 22:38:19,218 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=406, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=327, PETRI_PLACES=50, PETRI_TRANSITIONS=61} [2023-11-06 22:38:19,220 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 17 predicate places. [2023-11-06 22:38:19,220 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 61 transitions, 327 flow [2023-11-06 22:38:19,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 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 22:38:19,220 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:38:19,221 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:38:19,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:38:19,221 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-06 22:38:19,221 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:19,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1023765743, now seen corresponding path program 1 times [2023-11-06 22:38:19,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:38:19,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350135816] [2023-11-06 22:38:19,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:19,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:38:19,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:19,280 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:38:19,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:38:19,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350135816] [2023-11-06 22:38:19,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350135816] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:38:19,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391575165] [2023-11-06 22:38:19,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:19,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:38:19,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:19,282 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:38:19,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:38:19,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:19,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:38:19,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:38:19,483 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:38:19,483 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:38:19,572 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:38:19,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391575165] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:38:19,572 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:38:19,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 6, 6] total 12 [2023-11-06 22:38:19,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634205782] [2023-11-06 22:38:19,573 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:38:19,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-06 22:38:19,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:38:19,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-06 22:38:19,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:38:19,898 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 406 [2023-11-06 22:38:19,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 61 transitions, 327 flow. Second operand has 13 states, 13 states have (on average 164.92307692307693) internal successors, (2144), 13 states have internal predecessors, (2144), 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 22:38:19,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:38:19,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 406 [2023-11-06 22:38:19,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:38:20,250 INFO L124 PetriNetUnfolderBase]: 408/717 cut-off events. [2023-11-06 22:38:20,250 INFO L125 PetriNetUnfolderBase]: For 155/158 co-relation queries the response was YES. [2023-11-06 22:38:20,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1840 conditions, 717 events. 408/717 cut-off events. For 155/158 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3296 event pairs, 95 based on Foata normal form. 16/639 useless extension candidates. Maximal degree in co-relation 1817. Up to 204 conditions per place. [2023-11-06 22:38:20,256 INFO L140 encePairwiseOnDemand]: 397/406 looper letters, 62 selfloop transitions, 18 changer transitions 19/100 dead transitions. [2023-11-06 22:38:20,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 100 transitions, 630 flow [2023-11-06 22:38:20,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:38:20,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-06 22:38:20,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1695 transitions. [2023-11-06 22:38:20,264 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41748768472906406 [2023-11-06 22:38:20,264 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1695 transitions. [2023-11-06 22:38:20,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1695 transitions. [2023-11-06 22:38:20,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:38:20,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1695 transitions. [2023-11-06 22:38:20,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 169.5) internal successors, (1695), 10 states have internal predecessors, (1695), 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 22:38:20,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 406.0) internal successors, (4466), 11 states have internal predecessors, (4466), 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 22:38:20,281 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 406.0) internal successors, (4466), 11 states have internal predecessors, (4466), 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 22:38:20,281 INFO L175 Difference]: Start difference. First operand has 50 places, 61 transitions, 327 flow. Second operand 10 states and 1695 transitions. [2023-11-06 22:38:20,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 100 transitions, 630 flow [2023-11-06 22:38:20,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 100 transitions, 629 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:38:20,287 INFO L231 Difference]: Finished difference. Result has 60 places, 61 transitions, 371 flow [2023-11-06 22:38:20,288 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=406, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=371, PETRI_PLACES=60, PETRI_TRANSITIONS=61} [2023-11-06 22:38:20,288 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 27 predicate places. [2023-11-06 22:38:20,288 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 61 transitions, 371 flow [2023-11-06 22:38:20,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 164.92307692307693) internal successors, (2144), 13 states have internal predecessors, (2144), 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 22:38:20,290 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:38:20,290 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1] [2023-11-06 22:38:20,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:38:20,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-06 22:38:20,496 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-06 22:38:20,497 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:20,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1369138884, now seen corresponding path program 2 times [2023-11-06 22:38:20,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:38:20,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111358918] [2023-11-06 22:38:20,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:20,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:38:20,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:20,707 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:38:20,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:38:20,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111358918] [2023-11-06 22:38:20,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111358918] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:38:20,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519929109] [2023-11-06 22:38:20,708 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:38:20,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:38:20,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:20,710 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:38:20,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:38:20,821 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:38:20,821 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:38:20,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:38:20,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:38:20,857 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-06 22:38:20,857 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:38:20,889 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-06 22:38:20,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519929109] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:38:20,890 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:38:20,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 2, 2] total 10 [2023-11-06 22:38:20,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847484583] [2023-11-06 22:38:20,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:38:20,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 22:38:20,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:38:20,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:38:20,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:38:21,177 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 406 [2023-11-06 22:38:21,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 61 transitions, 371 flow. Second operand has 11 states, 11 states have (on average 166.9090909090909) internal successors, (1836), 11 states have internal predecessors, (1836), 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 22:38:21,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:38:21,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 406 [2023-11-06 22:38:21,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:38:21,545 INFO L124 PetriNetUnfolderBase]: 476/827 cut-off events. [2023-11-06 22:38:21,545 INFO L125 PetriNetUnfolderBase]: For 404/407 co-relation queries the response was YES. [2023-11-06 22:38:21,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2374 conditions, 827 events. 476/827 cut-off events. For 404/407 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3994 event pairs, 101 based on Foata normal form. 16/750 useless extension candidates. Maximal degree in co-relation 2348. Up to 261 conditions per place. [2023-11-06 22:38:21,550 INFO L140 encePairwiseOnDemand]: 398/406 looper letters, 20 selfloop transitions, 16 changer transitions 71/107 dead transitions. [2023-11-06 22:38:21,550 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 107 transitions, 724 flow [2023-11-06 22:38:21,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:38:21,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 22:38:21,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1888 transitions. [2023-11-06 22:38:21,558 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42274966412897447 [2023-11-06 22:38:21,558 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1888 transitions. [2023-11-06 22:38:21,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1888 transitions. [2023-11-06 22:38:21,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:38:21,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1888 transitions. [2023-11-06 22:38:21,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 171.63636363636363) internal successors, (1888), 11 states have internal predecessors, (1888), 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 22:38:21,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 406.0) internal successors, (4872), 12 states have internal predecessors, (4872), 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 22:38:21,585 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 406.0) internal successors, (4872), 12 states have internal predecessors, (4872), 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 22:38:21,585 INFO L175 Difference]: Start difference. First operand has 60 places, 61 transitions, 371 flow. Second operand 11 states and 1888 transitions. [2023-11-06 22:38:21,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 107 transitions, 724 flow [2023-11-06 22:38:21,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 107 transitions, 681 flow, removed 13 selfloop flow, removed 4 redundant places. [2023-11-06 22:38:21,593 INFO L231 Difference]: Finished difference. Result has 63 places, 36 transitions, 279 flow [2023-11-06 22:38:21,593 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=406, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=279, PETRI_PLACES=63, PETRI_TRANSITIONS=36} [2023-11-06 22:38:21,596 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 30 predicate places. [2023-11-06 22:38:21,596 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 36 transitions, 279 flow [2023-11-06 22:38:21,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 166.9090909090909) internal successors, (1836), 11 states have internal predecessors, (1836), 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 22:38:21,597 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:38:21,597 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1] [2023-11-06 22:38:21,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:38:21,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:38:21,804 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-06 22:38:21,804 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:21,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1122859310, now seen corresponding path program 2 times [2023-11-06 22:38:21,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:38:21,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149360684] [2023-11-06 22:38:21,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:21,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:38:21,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:22,081 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:38:22,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:38:22,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149360684] [2023-11-06 22:38:22,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149360684] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:38:22,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750296009] [2023-11-06 22:38:22,085 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:38:22,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:38:22,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:22,087 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:38:22,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 22:38:22,195 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:38:22,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:38:22,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:38:22,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:38:22,249 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-06 22:38:22,249 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:38:22,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750296009] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:38:22,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:38:22,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [12] total 14 [2023-11-06 22:38:22,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723924188] [2023-11-06 22:38:22,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:38:22,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:38:22,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:38:22,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:38:22,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=128, Unknown=0, NotChecked=0, Total=210 [2023-11-06 22:38:22,320 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 406 [2023-11-06 22:38:22,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 36 transitions, 279 flow. Second operand has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 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 22:38:22,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:38:22,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 406 [2023-11-06 22:38:22,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:38:22,352 INFO L124 PetriNetUnfolderBase]: 12/45 cut-off events. [2023-11-06 22:38:22,352 INFO L125 PetriNetUnfolderBase]: For 124/124 co-relation queries the response was YES. [2023-11-06 22:38:22,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 45 events. 12/45 cut-off events. For 124/124 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 2/47 useless extension candidates. Maximal degree in co-relation 201. Up to 45 conditions per place. [2023-11-06 22:38:22,353 INFO L140 encePairwiseOnDemand]: 404/406 looper letters, 0 selfloop transitions, 0 changer transitions 35/35 dead transitions. [2023-11-06 22:38:22,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 35 transitions, 325 flow [2023-11-06 22:38:22,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:38:22,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:38:22,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 533 transitions. [2023-11-06 22:38:22,356 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4376026272577997 [2023-11-06 22:38:22,356 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 533 transitions. [2023-11-06 22:38:22,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 533 transitions. [2023-11-06 22:38:22,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:38:22,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 533 transitions. [2023-11-06 22:38:22,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 177.66666666666666) internal successors, (533), 3 states have internal predecessors, (533), 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 22:38:22,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 406.0) internal successors, (1624), 4 states have internal predecessors, (1624), 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 22:38:22,362 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 406.0) internal successors, (1624), 4 states have internal predecessors, (1624), 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 22:38:22,362 INFO L175 Difference]: Start difference. First operand has 63 places, 36 transitions, 279 flow. Second operand 3 states and 533 transitions. [2023-11-06 22:38:22,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 35 transitions, 325 flow [2023-11-06 22:38:22,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 35 transitions, 214 flow, removed 3 selfloop flow, removed 17 redundant places. [2023-11-06 22:38:22,365 INFO L231 Difference]: Finished difference. Result has 25 places, 0 transitions, 0 flow [2023-11-06 22:38:22,365 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=406, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=25, PETRI_TRANSITIONS=0} [2023-11-06 22:38:22,366 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -8 predicate places. [2023-11-06 22:38:22,366 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 0 transitions, 0 flow [2023-11-06 22:38:22,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 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 22:38:22,370 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2023-11-06 22:38:22,370 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2023-11-06 22:38:22,371 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2023-11-06 22:38:22,371 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2023-11-06 22:38:22,371 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2023-11-06 22:38:22,371 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2023-11-06 22:38:22,372 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2023-11-06 22:38:22,372 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2023-11-06 22:38:22,372 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2023-11-06 22:38:22,372 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2023-11-06 22:38:22,372 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 18 remaining) [2023-11-06 22:38:22,372 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 18 remaining) [2023-11-06 22:38:22,373 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2023-11-06 22:38:22,373 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2023-11-06 22:38:22,373 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2023-11-06 22:38:22,373 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2023-11-06 22:38:22,373 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2023-11-06 22:38:22,374 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2023-11-06 22:38:22,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:38:22,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:38:22,586 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:38:22,593 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:38:22,593 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:38:22,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:38:22 BasicIcfg [2023-11-06 22:38:22,599 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:38:22,599 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:38:22,599 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:38:22,600 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:38:22,600 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:38:04" (3/4) ... [2023-11-06 22:38:22,602 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:38:22,606 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-06 22:38:22,606 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-06 22:38:22,615 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-11-06 22:38:22,616 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 22:38:22,616 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:38:22,617 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:38:22,708 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:38:22,709 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:38:22,709 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:38:22,709 INFO L158 Benchmark]: Toolchain (without parser) took 19208.77ms. Allocated memory was 144.7MB in the beginning and 251.7MB in the end (delta: 107.0MB). Free memory was 103.2MB in the beginning and 106.1MB in the end (delta: -2.8MB). Peak memory consumption was 104.7MB. Max. memory is 16.1GB. [2023-11-06 22:38:22,710 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 113.2MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:38:22,710 INFO L158 Benchmark]: CACSL2BoogieTranslator took 384.20ms. Allocated memory is still 144.7MB. Free memory was 102.8MB in the beginning and 109.2MB in the end (delta: -6.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-06 22:38:22,710 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.78ms. Allocated memory is still 144.7MB. Free memory was 109.2MB in the beginning and 106.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:38:22,711 INFO L158 Benchmark]: Boogie Preprocessor took 40.87ms. Allocated memory is still 144.7MB. Free memory was 106.8MB in the beginning and 105.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:38:22,712 INFO L158 Benchmark]: RCFGBuilder took 928.49ms. Allocated memory is still 144.7MB. Free memory was 105.2MB in the beginning and 74.6MB in the end (delta: 30.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-06 22:38:22,712 INFO L158 Benchmark]: TraceAbstraction took 17664.20ms. Allocated memory was 144.7MB in the beginning and 251.7MB in the end (delta: 107.0MB). Free memory was 74.2MB in the beginning and 111.3MB in the end (delta: -37.2MB). Peak memory consumption was 70.7MB. Max. memory is 16.1GB. [2023-11-06 22:38:22,713 INFO L158 Benchmark]: Witness Printer took 109.48ms. Allocated memory is still 251.7MB. Free memory was 111.3MB in the beginning and 106.1MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-06 22:38:22,716 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 113.2MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 384.20ms. Allocated memory is still 144.7MB. Free memory was 102.8MB in the beginning and 109.2MB in the end (delta: -6.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.78ms. Allocated memory is still 144.7MB. Free memory was 109.2MB in the beginning and 106.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.87ms. Allocated memory is still 144.7MB. Free memory was 106.8MB in the beginning and 105.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 928.49ms. Allocated memory is still 144.7MB. Free memory was 105.2MB in the beginning and 74.6MB in the end (delta: 30.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 17664.20ms. Allocated memory was 144.7MB in the beginning and 251.7MB in the end (delta: 107.0MB). Free memory was 74.2MB in the beginning and 111.3MB in the end (delta: -37.2MB). Peak memory consumption was 70.7MB. Max. memory is 16.1GB. * Witness Printer took 109.48ms. Allocated memory is still 251.7MB. Free memory was 111.3MB in the beginning and 106.1MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.0s, 177 PlacesBefore, 33 PlacesAfterwards, 184 TransitionsBefore, 31 TransitionsAfterwards, 942 CoEnabledTransitionPairs, 8 FixpointIterations, 132 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 27 TrivialYvCompositions, 4 ConcurrentYvCompositions, 9 ChoiceCompositions, 198 TotalNumberOfCompositions, 1558 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1204, independent: 1139, independent conditional: 0, independent unconditional: 1139, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 487, independent: 474, independent conditional: 0, independent unconditional: 474, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1204, independent: 665, independent conditional: 0, independent unconditional: 665, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 487, unknown conditional: 0, unknown unconditional: 487] , Statistics on independence cache: Total cache size (in pairs): 60, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 73]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 73]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 117]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 117]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 117]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 117]: 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, 224 locations, 18 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 17.5s, OverallIterations: 13, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1426 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1037 mSDsluCounter, 908 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 848 mSDsCounter, 110 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2282 IncrementalHoareTripleChecker+Invalid, 2392 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 110 mSolverCounterUnsat, 60 mSDtfsCounter, 2282 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 142 GetRequests, 58 SyntacticMatches, 3 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=467occurred in iteration=8, InterpolantAutomatonStates: 68, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 149 NumberOfCodeBlocks, 129 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 156 ConstructedInterpolants, 0 QuantifiedInterpolants, 539 SizeOfPredicates, 10 NumberOfNonLiveVariables, 918 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 24 InterpolantComputations, 9 PerfectInterpolantSequences, 95/208 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! [2023-11-06 22:38:22,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507f8fc9-eae2-49e2-be2a-97963b89fd5b/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