./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-time-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a14e19-c80c-4856-9d0f-9877a48d35f4/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a14e19-c80c-4856-9d0f-9877a48d35f4/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_d4a14e19-c80c-4856-9d0f-9877a48d35f4/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a14e19-c80c-4856-9d0f-9877a48d35f4/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-time-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a14e19-c80c-4856-9d0f-9877a48d35f4/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a14e19-c80c-4856-9d0f-9877a48d35f4/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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f2d05599d6fce1204a0d86fe3e19cae407be0ec265e139da4f0fd53a7d101655 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:36:10,803 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:36:10,940 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a14e19-c80c-4856-9d0f-9877a48d35f4/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:36:10,945 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:36:10,946 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:36:10,998 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:36:11,000 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:36:11,002 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:36:11,003 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:36:11,009 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:36:11,010 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:36:11,011 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:36:11,011 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:36:11,014 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:36:11,014 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:36:11,015 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:36:11,015 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:36:11,016 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:36:11,016 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:36:11,017 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:36:11,017 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:36:11,018 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:36:11,018 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:36:11,019 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:36:11,019 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:36:11,020 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:36:11,021 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:36:11,022 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:36:11,022 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:36:11,023 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:36:11,024 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:36:11,025 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:36:11,025 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:36:11,025 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:36:11,026 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:36:11,026 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:36:11,026 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:36:11,027 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:36:11,027 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:36:11,027 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_d4a14e19-c80c-4856-9d0f-9877a48d35f4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a14e19-c80c-4856-9d0f-9877a48d35f4/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f2d05599d6fce1204a0d86fe3e19cae407be0ec265e139da4f0fd53a7d101655 [2023-11-06 22:36:11,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:36:11,404 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:36:11,407 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:36:11,410 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:36:11,410 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:36:11,412 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a14e19-c80c-4856-9d0f-9877a48d35f4/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/chl-time-trans.wvr.c [2023-11-06 22:36:14,674 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:36:14,898 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:36:14,899 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a14e19-c80c-4856-9d0f-9877a48d35f4/sv-benchmarks/c/weaver/chl-time-trans.wvr.c [2023-11-06 22:36:14,908 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a14e19-c80c-4856-9d0f-9877a48d35f4/bin/uautomizer-verify-WvqO1wxjHP/data/814e08822/5de955f90195413f8395e7ce6e4302cf/FLAGcd74c9b02 [2023-11-06 22:36:14,925 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a14e19-c80c-4856-9d0f-9877a48d35f4/bin/uautomizer-verify-WvqO1wxjHP/data/814e08822/5de955f90195413f8395e7ce6e4302cf [2023-11-06 22:36:14,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:36:14,930 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:36:14,932 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:36:14,932 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:36:14,939 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:36:14,940 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:36:14" (1/1) ... [2023-11-06 22:36:14,941 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30a706c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:14, skipping insertion in model container [2023-11-06 22:36:14,941 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:36:14" (1/1) ... [2023-11-06 22:36:14,971 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:36:15,233 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a14e19-c80c-4856-9d0f-9877a48d35f4/sv-benchmarks/c/weaver/chl-time-trans.wvr.c[2836,2849] [2023-11-06 22:36:15,248 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:36:15,260 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:36:15,286 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a14e19-c80c-4856-9d0f-9877a48d35f4/sv-benchmarks/c/weaver/chl-time-trans.wvr.c[2836,2849] [2023-11-06 22:36:15,289 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:36:15,297 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:36:15,298 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:36:15,306 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:36:15,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:15 WrapperNode [2023-11-06 22:36:15,307 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:36:15,308 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:36:15,309 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:36:15,309 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:36:15,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:15" (1/1) ... [2023-11-06 22:36:15,341 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:15" (1/1) ... [2023-11-06 22:36:15,393 INFO L138 Inliner]: procedures = 23, calls = 39, calls flagged for inlining = 11, calls inlined = 21, statements flattened = 222 [2023-11-06 22:36:15,394 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:36:15,394 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:36:15,395 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:36:15,395 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:36:15,415 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:15" (1/1) ... [2023-11-06 22:36:15,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:15" (1/1) ... [2023-11-06 22:36:15,419 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:15" (1/1) ... [2023-11-06 22:36:15,420 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:15" (1/1) ... [2023-11-06 22:36:15,429 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:15" (1/1) ... [2023-11-06 22:36:15,432 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:15" (1/1) ... [2023-11-06 22:36:15,434 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:15" (1/1) ... [2023-11-06 22:36:15,436 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:15" (1/1) ... [2023-11-06 22:36:15,441 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:36:15,442 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:36:15,442 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:36:15,442 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:36:15,443 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:15" (1/1) ... [2023-11-06 22:36:15,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:36:15,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a14e19-c80c-4856-9d0f-9877a48d35f4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:15,482 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a14e19-c80c-4856-9d0f-9877a48d35f4/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:15,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a14e19-c80c-4856-9d0f-9877a48d35f4/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:36:15,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:36:15,563 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 22:36:15,563 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 22:36:15,564 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 22:36:15,564 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 22:36:15,564 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-06 22:36:15,564 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-06 22:36:15,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:36:15,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:36:15,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:36:15,565 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:36:15,565 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:36:15,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:36:15,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:36:15,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:36:15,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:36:15,568 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 22:36:15,745 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:36:15,752 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:36:16,329 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:36:16,729 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:36:16,730 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:36:16,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:36:16 BoogieIcfgContainer [2023-11-06 22:36:16,734 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:36:16,739 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:36:16,739 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:36:16,743 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:36:16,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:36:14" (1/3) ... [2023-11-06 22:36:16,745 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d6aa177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:36:16, skipping insertion in model container [2023-11-06 22:36:16,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:15" (2/3) ... [2023-11-06 22:36:16,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d6aa177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:36:16, skipping insertion in model container [2023-11-06 22:36:16,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:36:16" (3/3) ... [2023-11-06 22:36:16,751 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-time-trans.wvr.c [2023-11-06 22:36:16,763 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:36:16,777 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:36:16,777 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:36:16,777 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:36:16,893 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-06 22:36:16,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 115 transitions, 251 flow [2023-11-06 22:36:17,043 INFO L124 PetriNetUnfolderBase]: 1/112 cut-off events. [2023-11-06 22:36:17,044 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 22:36:17,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 112 events. 1/112 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 20 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2023-11-06 22:36:17,049 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 115 transitions, 251 flow [2023-11-06 22:36:17,055 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 110 places, 101 transitions, 220 flow [2023-11-06 22:36:17,059 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:36:17,077 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 110 places, 101 transitions, 220 flow [2023-11-06 22:36:17,080 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 110 places, 101 transitions, 220 flow [2023-11-06 22:36:17,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 101 transitions, 220 flow [2023-11-06 22:36:17,111 INFO L124 PetriNetUnfolderBase]: 1/101 cut-off events. [2023-11-06 22:36:17,111 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 22:36:17,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 101 events. 1/101 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 19 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2023-11-06 22:36:17,113 INFO L119 LiptonReduction]: Number of co-enabled transitions 270 [2023-11-06 22:36:23,899 INFO L134 LiptonReduction]: Checked pairs total: 404 [2023-11-06 22:36:23,900 INFO L136 LiptonReduction]: Total number of compositions: 90 [2023-11-06 22:36:23,917 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:36:23,926 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;@5e8e1b04, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:36:23,926 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-06 22:36:23,938 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:36:23,948 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2023-11-06 22:36:23,949 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 22:36:23,949 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:36:23,950 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:36:23,951 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-06 22:36:23,958 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:23,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1213375912, now seen corresponding path program 1 times [2023-11-06 22:36:23,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:23,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735330552] [2023-11-06 22:36:23,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:23,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:25,431 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 22:36:25,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:36:25,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735330552] [2023-11-06 22:36:25,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735330552] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:36:25,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:36:25,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:36:25,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742709549] [2023-11-06 22:36:25,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:36:25,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:36:25,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:36:25,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:36:25,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:36:25,588 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 205 [2023-11-06 22:36:25,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 50 flow. Second operand has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 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 22:36:25,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:36:25,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 205 [2023-11-06 22:36:25,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:36:25,920 INFO L124 PetriNetUnfolderBase]: 38/100 cut-off events. [2023-11-06 22:36:25,920 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2023-11-06 22:36:25,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 100 events. 38/100 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 264 event pairs, 17 based on Foata normal form. 1/101 useless extension candidates. Maximal degree in co-relation 130. Up to 45 conditions per place. [2023-11-06 22:36:25,924 INFO L140 encePairwiseOnDemand]: 201/205 looper letters, 28 selfloop transitions, 2 changer transitions 7/37 dead transitions. [2023-11-06 22:36:25,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 37 transitions, 190 flow [2023-11-06 22:36:25,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:36:25,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:36:25,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 468 transitions. [2023-11-06 22:36:25,945 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45658536585365855 [2023-11-06 22:36:25,947 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 468 transitions. [2023-11-06 22:36:25,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 468 transitions. [2023-11-06 22:36:25,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:36:25,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 468 transitions. [2023-11-06 22:36:25,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 93.6) internal successors, (468), 5 states have internal predecessors, (468), 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 22:36:25,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 205.0) internal successors, (1230), 6 states have internal predecessors, (1230), 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 22:36:25,968 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 205.0) internal successors, (1230), 6 states have internal predecessors, (1230), 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 22:36:25,970 INFO L175 Difference]: Start difference. First operand has 26 places, 16 transitions, 50 flow. Second operand 5 states and 468 transitions. [2023-11-06 22:36:25,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 37 transitions, 190 flow [2023-11-06 22:36:25,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 37 transitions, 162 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-06 22:36:25,977 INFO L231 Difference]: Finished difference. Result has 27 places, 17 transitions, 53 flow [2023-11-06 22:36:25,980 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=53, PETRI_PLACES=27, PETRI_TRANSITIONS=17} [2023-11-06 22:36:25,984 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 1 predicate places. [2023-11-06 22:36:25,985 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 17 transitions, 53 flow [2023-11-06 22:36:25,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 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 22:36:25,986 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:36:25,986 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:36:25,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:36:25,987 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-06 22:36:25,988 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:25,988 INFO L85 PathProgramCache]: Analyzing trace with hash 338450756, now seen corresponding path program 2 times [2023-11-06 22:36:25,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:25,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367223447] [2023-11-06 22:36:25,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:25,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:26,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:26,446 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 22:36:26,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:36:26,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367223447] [2023-11-06 22:36:26,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367223447] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:36:26,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:36:26,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:36:26,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252212501] [2023-11-06 22:36:26,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:36:26,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:36:26,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:36:26,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:36:26,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:36:26,558 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 205 [2023-11-06 22:36:26,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 17 transitions, 53 flow. Second operand has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 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 22:36:26,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:36:26,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 205 [2023-11-06 22:36:26,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:36:26,864 INFO L124 PetriNetUnfolderBase]: 38/116 cut-off events. [2023-11-06 22:36:26,865 INFO L125 PetriNetUnfolderBase]: For 86/86 co-relation queries the response was YES. [2023-11-06 22:36:26,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 116 events. 38/116 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 407 event pairs, 13 based on Foata normal form. 1/117 useless extension candidates. Maximal degree in co-relation 288. Up to 58 conditions per place. [2023-11-06 22:36:26,867 INFO L140 encePairwiseOnDemand]: 201/205 looper letters, 28 selfloop transitions, 3 changer transitions 9/40 dead transitions. [2023-11-06 22:36:26,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 40 transitions, 198 flow [2023-11-06 22:36:26,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:36:26,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:36:26,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 470 transitions. [2023-11-06 22:36:26,872 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4585365853658537 [2023-11-06 22:36:26,872 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 470 transitions. [2023-11-06 22:36:26,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 470 transitions. [2023-11-06 22:36:26,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:36:26,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 470 transitions. [2023-11-06 22:36:26,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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 22:36:26,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 205.0) internal successors, (1230), 6 states have internal predecessors, (1230), 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 22:36:26,881 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 205.0) internal successors, (1230), 6 states have internal predecessors, (1230), 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 22:36:26,881 INFO L175 Difference]: Start difference. First operand has 27 places, 17 transitions, 53 flow. Second operand 5 states and 470 transitions. [2023-11-06 22:36:26,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 40 transitions, 198 flow [2023-11-06 22:36:26,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 40 transitions, 191 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-11-06 22:36:26,884 INFO L231 Difference]: Finished difference. Result has 31 places, 18 transitions, 70 flow [2023-11-06 22:36:26,884 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=70, PETRI_PLACES=31, PETRI_TRANSITIONS=18} [2023-11-06 22:36:26,885 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 5 predicate places. [2023-11-06 22:36:26,885 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 18 transitions, 70 flow [2023-11-06 22:36:26,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 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 22:36:26,886 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:36:26,887 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:36:26,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:36:26,887 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-06 22:36:26,888 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:26,888 INFO L85 PathProgramCache]: Analyzing trace with hash 397133520, now seen corresponding path program 3 times [2023-11-06 22:36:26,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:26,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258009349] [2023-11-06 22:36:26,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:26,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:26,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:27,355 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 22:36:27,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:36:27,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258009349] [2023-11-06 22:36:27,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258009349] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:36:27,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:36:27,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:36:27,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193548791] [2023-11-06 22:36:27,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:36:27,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:36:27,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:36:27,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:36:27,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:36:27,415 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 205 [2023-11-06 22:36:27,416 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 18 transitions, 70 flow. Second operand has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 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 22:36:27,416 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:36:27,416 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 205 [2023-11-06 22:36:27,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:36:27,666 INFO L124 PetriNetUnfolderBase]: 33/103 cut-off events. [2023-11-06 22:36:27,666 INFO L125 PetriNetUnfolderBase]: For 169/169 co-relation queries the response was YES. [2023-11-06 22:36:27,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 103 events. 33/103 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 332 event pairs, 10 based on Foata normal form. 1/104 useless extension candidates. Maximal degree in co-relation 312. Up to 36 conditions per place. [2023-11-06 22:36:27,669 INFO L140 encePairwiseOnDemand]: 201/205 looper letters, 28 selfloop transitions, 3 changer transitions 11/42 dead transitions. [2023-11-06 22:36:27,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 42 transitions, 233 flow [2023-11-06 22:36:27,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:36:27,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:36:27,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 470 transitions. [2023-11-06 22:36:27,672 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4585365853658537 [2023-11-06 22:36:27,673 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 470 transitions. [2023-11-06 22:36:27,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 470 transitions. [2023-11-06 22:36:27,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:36:27,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 470 transitions. [2023-11-06 22:36:27,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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 22:36:27,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 205.0) internal successors, (1230), 6 states have internal predecessors, (1230), 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 22:36:27,681 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 205.0) internal successors, (1230), 6 states have internal predecessors, (1230), 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 22:36:27,682 INFO L175 Difference]: Start difference. First operand has 31 places, 18 transitions, 70 flow. Second operand 5 states and 470 transitions. [2023-11-06 22:36:27,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 42 transitions, 233 flow [2023-11-06 22:36:27,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 42 transitions, 223 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-11-06 22:36:27,685 INFO L231 Difference]: Finished difference. Result has 35 places, 18 transitions, 80 flow [2023-11-06 22:36:27,686 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=80, PETRI_PLACES=35, PETRI_TRANSITIONS=18} [2023-11-06 22:36:27,687 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 9 predicate places. [2023-11-06 22:36:27,687 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 18 transitions, 80 flow [2023-11-06 22:36:27,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 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 22:36:27,688 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:36:27,688 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:36:27,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:36:27,689 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-06 22:36:27,689 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:27,689 INFO L85 PathProgramCache]: Analyzing trace with hash 288248872, now seen corresponding path program 4 times [2023-11-06 22:36:27,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:27,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617608306] [2023-11-06 22:36:27,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:27,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:27,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:28,140 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 22:36:28,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:36:28,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617608306] [2023-11-06 22:36:28,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617608306] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:36:28,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:36:28,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:36:28,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019526700] [2023-11-06 22:36:28,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:36:28,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:36:28,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:36:28,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:36:28,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:36:28,233 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 205 [2023-11-06 22:36:28,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 18 transitions, 80 flow. Second operand has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 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 22:36:28,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:36:28,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 205 [2023-11-06 22:36:28,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:36:28,490 INFO L124 PetriNetUnfolderBase]: 24/74 cut-off events. [2023-11-06 22:36:28,490 INFO L125 PetriNetUnfolderBase]: For 220/220 co-relation queries the response was YES. [2023-11-06 22:36:28,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 74 events. 24/74 cut-off events. For 220/220 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 184 event pairs, 9 based on Foata normal form. 1/75 useless extension candidates. Maximal degree in co-relation 257. Up to 35 conditions per place. [2023-11-06 22:36:28,492 INFO L140 encePairwiseOnDemand]: 201/205 looper letters, 16 selfloop transitions, 1 changer transitions 17/34 dead transitions. [2023-11-06 22:36:28,492 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 34 transitions, 201 flow [2023-11-06 22:36:28,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:36:28,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:36:28,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 464 transitions. [2023-11-06 22:36:28,497 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4526829268292683 [2023-11-06 22:36:28,497 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 464 transitions. [2023-11-06 22:36:28,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 464 transitions. [2023-11-06 22:36:28,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:36:28,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 464 transitions. [2023-11-06 22:36:28,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 92.8) internal successors, (464), 5 states have internal predecessors, (464), 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 22:36:28,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 205.0) internal successors, (1230), 6 states have internal predecessors, (1230), 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 22:36:28,506 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 205.0) internal successors, (1230), 6 states have internal predecessors, (1230), 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 22:36:28,507 INFO L175 Difference]: Start difference. First operand has 35 places, 18 transitions, 80 flow. Second operand 5 states and 464 transitions. [2023-11-06 22:36:28,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 34 transitions, 201 flow [2023-11-06 22:36:28,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 34 transitions, 186 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-11-06 22:36:28,517 INFO L231 Difference]: Finished difference. Result has 36 places, 16 transitions, 61 flow [2023-11-06 22:36:28,517 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=61, PETRI_PLACES=36, PETRI_TRANSITIONS=16} [2023-11-06 22:36:28,519 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 10 predicate places. [2023-11-06 22:36:28,519 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 16 transitions, 61 flow [2023-11-06 22:36:28,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 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 22:36:28,520 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:36:28,520 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:36:28,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:36:28,521 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-06 22:36:28,521 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:28,522 INFO L85 PathProgramCache]: Analyzing trace with hash -719839846, now seen corresponding path program 5 times [2023-11-06 22:36:28,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:28,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857799226] [2023-11-06 22:36:28,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:28,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:28,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:29,027 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 22:36:29,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:36:29,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857799226] [2023-11-06 22:36:29,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857799226] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:36:29,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:36:29,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:36:29,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998299515] [2023-11-06 22:36:29,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:36:29,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:36:29,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:36:29,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:36:29,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:36:29,097 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 205 [2023-11-06 22:36:29,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 16 transitions, 61 flow. Second operand has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 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 22:36:29,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:36:29,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 205 [2023-11-06 22:36:29,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:36:29,286 INFO L124 PetriNetUnfolderBase]: 8/40 cut-off events. [2023-11-06 22:36:29,286 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2023-11-06 22:36:29,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 40 events. 8/40 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 66 event pairs, 1 based on Foata normal form. 1/41 useless extension candidates. Maximal degree in co-relation 130. Up to 19 conditions per place. [2023-11-06 22:36:29,287 INFO L140 encePairwiseOnDemand]: 201/205 looper letters, 16 selfloop transitions, 1 changer transitions 11/28 dead transitions. [2023-11-06 22:36:29,287 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 28 transitions, 162 flow [2023-11-06 22:36:29,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:36:29,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:36:29,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 459 transitions. [2023-11-06 22:36:29,290 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4478048780487805 [2023-11-06 22:36:29,291 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 459 transitions. [2023-11-06 22:36:29,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 459 transitions. [2023-11-06 22:36:29,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:36:29,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 459 transitions. [2023-11-06 22:36:29,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 91.8) internal successors, (459), 5 states have internal predecessors, (459), 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 22:36:29,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 205.0) internal successors, (1230), 6 states have internal predecessors, (1230), 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 22:36:29,296 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 205.0) internal successors, (1230), 6 states have internal predecessors, (1230), 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 22:36:29,297 INFO L175 Difference]: Start difference. First operand has 36 places, 16 transitions, 61 flow. Second operand 5 states and 459 transitions. [2023-11-06 22:36:29,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 28 transitions, 162 flow [2023-11-06 22:36:29,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 28 transitions, 127 flow, removed 6 selfloop flow, removed 10 redundant places. [2023-11-06 22:36:29,299 INFO L231 Difference]: Finished difference. Result has 30 places, 16 transitions, 49 flow [2023-11-06 22:36:29,299 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=49, PETRI_PLACES=30, PETRI_TRANSITIONS=16} [2023-11-06 22:36:29,300 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 4 predicate places. [2023-11-06 22:36:29,300 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 16 transitions, 49 flow [2023-11-06 22:36:29,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 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 22:36:29,301 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:36:29,301 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:36:29,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:36:29,301 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-06 22:36:29,302 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:29,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1580984078, now seen corresponding path program 6 times [2023-11-06 22:36:29,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:29,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287826371] [2023-11-06 22:36:29,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:29,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:29,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:29,662 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 22:36:29,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:36:29,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287826371] [2023-11-06 22:36:29,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287826371] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:36:29,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:36:29,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:36:29,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651958160] [2023-11-06 22:36:29,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:36:29,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:36:29,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:36:29,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:36:29,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:36:29,717 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 205 [2023-11-06 22:36:29,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 16 transitions, 49 flow. Second operand has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 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 22:36:29,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:36:29,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 205 [2023-11-06 22:36:29,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:36:29,850 INFO L124 PetriNetUnfolderBase]: 6/28 cut-off events. [2023-11-06 22:36:29,851 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-11-06 22:36:29,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 28 events. 6/28 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 23 event pairs, 3 based on Foata normal form. 1/29 useless extension candidates. Maximal degree in co-relation 77. Up to 15 conditions per place. [2023-11-06 22:36:29,851 INFO L140 encePairwiseOnDemand]: 201/205 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2023-11-06 22:36:29,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 19 transitions, 94 flow [2023-11-06 22:36:29,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:36:29,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:36:29,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 450 transitions. [2023-11-06 22:36:29,854 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43902439024390244 [2023-11-06 22:36:29,854 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 450 transitions. [2023-11-06 22:36:29,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 450 transitions. [2023-11-06 22:36:29,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:36:29,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 450 transitions. [2023-11-06 22:36:29,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 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 22:36:29,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 205.0) internal successors, (1230), 6 states have internal predecessors, (1230), 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 22:36:29,860 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 205.0) internal successors, (1230), 6 states have internal predecessors, (1230), 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 22:36:29,860 INFO L175 Difference]: Start difference. First operand has 30 places, 16 transitions, 49 flow. Second operand 5 states and 450 transitions. [2023-11-06 22:36:29,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 19 transitions, 94 flow [2023-11-06 22:36:29,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 19 transitions, 90 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-11-06 22:36:29,861 INFO L231 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2023-11-06 22:36:29,862 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=29, PETRI_TRANSITIONS=0} [2023-11-06 22:36:29,862 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2023-11-06 22:36:29,863 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 0 transitions, 0 flow [2023-11-06 22:36:29,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 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 22:36:29,865 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-11-06 22:36:29,866 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-11-06 22:36:29,866 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-11-06 22:36:29,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-11-06 22:36:29,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:36:29,867 INFO L445 BasicCegarLoop]: Path program histogram: [6] [2023-11-06 22:36:29,870 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:36:29,870 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:36:29,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:36:29 BasicIcfg [2023-11-06 22:36:29,874 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:36:29,875 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:36:29,875 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:36:29,875 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:36:29,876 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:36:16" (3/4) ... [2023-11-06 22:36:29,878 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:36:29,881 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-06 22:36:29,881 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-06 22:36:29,881 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-11-06 22:36:29,886 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-11-06 22:36:29,887 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 22:36:29,888 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:36:29,888 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:36:29,959 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a14e19-c80c-4856-9d0f-9877a48d35f4/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:36:29,960 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a14e19-c80c-4856-9d0f-9877a48d35f4/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:36:29,960 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:36:29,960 INFO L158 Benchmark]: Toolchain (without parser) took 15030.25ms. Allocated memory was 151.0MB in the beginning and 226.5MB in the end (delta: 75.5MB). Free memory was 115.2MB in the beginning and 150.2MB in the end (delta: -35.0MB). Peak memory consumption was 42.4MB. Max. memory is 16.1GB. [2023-11-06 22:36:29,961 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 100.7MB. Free memory is still 51.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:36:29,961 INFO L158 Benchmark]: CACSL2BoogieTranslator took 375.64ms. Allocated memory is still 151.0MB. Free memory was 114.8MB in the beginning and 103.5MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:36:29,961 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.39ms. Allocated memory is still 151.0MB. Free memory was 103.5MB in the beginning and 101.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:36:29,962 INFO L158 Benchmark]: Boogie Preprocessor took 46.57ms. Allocated memory is still 151.0MB. Free memory was 101.0MB in the beginning and 99.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:36:29,962 INFO L158 Benchmark]: RCFGBuilder took 1292.08ms. Allocated memory is still 151.0MB. Free memory was 99.3MB in the beginning and 70.4MB in the end (delta: 28.9MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2023-11-06 22:36:29,962 INFO L158 Benchmark]: TraceAbstraction took 13135.60ms. Allocated memory was 151.0MB in the beginning and 226.5MB in the end (delta: 75.5MB). Free memory was 70.4MB in the beginning and 154.4MB in the end (delta: -84.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:36:29,963 INFO L158 Benchmark]: Witness Printer took 84.88ms. Allocated memory is still 226.5MB. Free memory was 154.4MB in the beginning and 150.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:36:29,965 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 100.7MB. Free memory is still 51.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 375.64ms. Allocated memory is still 151.0MB. Free memory was 114.8MB in the beginning and 103.5MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.39ms. Allocated memory is still 151.0MB. Free memory was 103.5MB in the beginning and 101.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.57ms. Allocated memory is still 151.0MB. Free memory was 101.0MB in the beginning and 99.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1292.08ms. Allocated memory is still 151.0MB. Free memory was 99.3MB in the beginning and 70.4MB in the end (delta: 28.9MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. * TraceAbstraction took 13135.60ms. Allocated memory was 151.0MB in the beginning and 226.5MB in the end (delta: 75.5MB). Free memory was 70.4MB in the beginning and 154.4MB in the end (delta: -84.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 84.88ms. Allocated memory is still 226.5MB. Free memory was 154.4MB in the beginning and 150.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.8s, 110 PlacesBefore, 26 PlacesAfterwards, 101 TransitionsBefore, 16 TransitionsAfterwards, 270 CoEnabledTransitionPairs, 7 FixpointIterations, 68 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 90 TotalNumberOfCompositions, 404 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 404, independent: 404, independent conditional: 0, independent unconditional: 404, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 157, independent: 157, independent conditional: 0, independent unconditional: 157, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 404, independent: 247, independent conditional: 0, independent unconditional: 247, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 157, unknown conditional: 0, unknown unconditional: 157] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 93]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 130 locations, 4 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: 12.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 260 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 192 mSDsluCounter, 97 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 81 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 765 IncrementalHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 16 mSDtfsCounter, 765 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=3, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 1637 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 22:36:30,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a14e19-c80c-4856-9d0f-9877a48d35f4/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