./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_bdeaab00-6be2-4deb-8c4b-eb257f6ac599/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdeaab00-6be2-4deb-8c4b-eb257f6ac599/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdeaab00-6be2-4deb-8c4b-eb257f6ac599/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdeaab00-6be2-4deb-8c4b-eb257f6ac599/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdeaab00-6be2-4deb-8c4b-eb257f6ac599/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdeaab00-6be2-4deb-8c4b-eb257f6ac599/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --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 a233f90faab2ceb8ddfb042463870c03c0794d3cd45b2ba20de731314559cb95 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:32:19,657 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:32:19,755 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdeaab00-6be2-4deb-8c4b-eb257f6ac599/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:32:19,761 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:32:19,762 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:32:19,786 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:32:19,787 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:32:19,790 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:32:19,792 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:32:19,793 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:32:19,794 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:32:19,795 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:32:19,796 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:32:19,799 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:32:19,800 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:32:19,800 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:32:19,802 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:32:19,806 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:32:19,806 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:32:19,807 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:32:19,807 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:32:19,808 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:32:19,808 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:32:19,809 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:32:19,809 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:32:19,810 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:32:19,811 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:32:19,811 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:32:19,811 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:32:19,812 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:32:19,813 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:32:19,814 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:32:19,814 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:32:19,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:32:19,815 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:32:19,815 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:32:19,815 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:32:19,815 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:32:19,816 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:32:19,816 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_bdeaab00-6be2-4deb-8c4b-eb257f6ac599/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdeaab00-6be2-4deb-8c4b-eb257f6ac599/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a233f90faab2ceb8ddfb042463870c03c0794d3cd45b2ba20de731314559cb95 [2023-11-12 02:32:20,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:32:20,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:32:20,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:32:20,210 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:32:20,210 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:32:20,211 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdeaab00-6be2-4deb-8c4b-eb257f6ac599/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2023-11-12 02:32:23,285 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:32:23,629 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:32:23,634 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdeaab00-6be2-4deb-8c4b-eb257f6ac599/sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2023-11-12 02:32:23,658 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdeaab00-6be2-4deb-8c4b-eb257f6ac599/bin/uautomizer-verify-uTZkv6EMXl/data/32b7aec0b/0bfd6408670a400eb59780a57ae935a6/FLAGf9512b9e7 [2023-11-12 02:32:23,679 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdeaab00-6be2-4deb-8c4b-eb257f6ac599/bin/uautomizer-verify-uTZkv6EMXl/data/32b7aec0b/0bfd6408670a400eb59780a57ae935a6 [2023-11-12 02:32:23,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:32:23,686 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:32:23,688 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:32:23,688 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:32:23,695 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:32:23,696 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:32:23" (1/1) ... [2023-11-12 02:32:23,697 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c44eb57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:23, skipping insertion in model container [2023-11-12 02:32:23,697 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:32:23" (1/1) ... [2023-11-12 02:32:23,770 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:32:23,923 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_bdeaab00-6be2-4deb-8c4b-eb257f6ac599/sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i[1105,1118] [2023-11-12 02:32:24,191 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:32:24,211 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:32:24,228 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_bdeaab00-6be2-4deb-8c4b-eb257f6ac599/sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i[1105,1118] [2023-11-12 02:32:24,286 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:32:24,348 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:32:24,348 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:24 WrapperNode [2023-11-12 02:32:24,348 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:32:24,350 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:32:24,350 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:32:24,350 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:32:24,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:24" (1/1) ... [2023-11-12 02:32:24,392 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:24" (1/1) ... [2023-11-12 02:32:24,430 INFO L138 Inliner]: procedures = 162, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2023-11-12 02:32:24,431 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:32:24,431 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:32:24,432 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:32:24,432 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:32:24,442 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:24" (1/1) ... [2023-11-12 02:32:24,443 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:24" (1/1) ... [2023-11-12 02:32:24,455 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:24" (1/1) ... [2023-11-12 02:32:24,459 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:24" (1/1) ... [2023-11-12 02:32:24,465 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:24" (1/1) ... [2023-11-12 02:32:24,478 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:24" (1/1) ... [2023-11-12 02:32:24,480 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:24" (1/1) ... [2023-11-12 02:32:24,484 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:24" (1/1) ... [2023-11-12 02:32:24,496 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:32:24,497 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:32:24,497 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:32:24,497 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:32:24,498 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:24" (1/1) ... [2023-11-12 02:32:24,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:32:24,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdeaab00-6be2-4deb-8c4b-eb257f6ac599/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:32:24,549 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdeaab00-6be2-4deb-8c4b-eb257f6ac599/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:32:24,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdeaab00-6be2-4deb-8c4b-eb257f6ac599/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:32:24,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:32:24,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:32:24,601 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-12 02:32:24,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:32:24,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:32:24,602 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-12 02:32:24,602 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-12 02:32:24,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:32:24,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:32:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:32:24,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:32:24,605 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:32:24,847 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:32:24,849 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:32:25,076 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:32:25,086 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:32:25,086 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:32:25,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:32:25 BoogieIcfgContainer [2023-11-12 02:32:25,089 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:32:25,092 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:32:25,092 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:32:25,099 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:32:25,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:32:23" (1/3) ... [2023-11-12 02:32:25,100 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e84f1c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:32:25, skipping insertion in model container [2023-11-12 02:32:25,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:24" (2/3) ... [2023-11-12 02:32:25,101 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e84f1c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:32:25, skipping insertion in model container [2023-11-12 02:32:25,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:32:25" (3/3) ... [2023-11-12 02:32:25,103 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2023-11-12 02:32:25,113 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:32:25,127 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:32:25,127 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-12 02:32:25,127 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:32:25,198 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-12 02:32:25,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 96 transitions, 199 flow [2023-11-12 02:32:25,314 INFO L124 PetriNetUnfolderBase]: 2/95 cut-off events. [2023-11-12 02:32:25,320 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-12 02:32:25,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 95 events. 2/95 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2023-11-12 02:32:25,325 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 96 transitions, 199 flow [2023-11-12 02:32:25,330 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 79 transitions, 161 flow [2023-11-12 02:32:25,334 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:32:25,347 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 79 transitions, 161 flow [2023-11-12 02:32:25,359 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 79 transitions, 161 flow [2023-11-12 02:32:25,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 79 transitions, 161 flow [2023-11-12 02:32:25,404 INFO L124 PetriNetUnfolderBase]: 1/79 cut-off events. [2023-11-12 02:32:25,404 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:32:25,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 79 events. 1/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2023-11-12 02:32:25,413 INFO L119 LiptonReduction]: Number of co-enabled transitions 918 [2023-11-12 02:32:29,204 INFO L134 LiptonReduction]: Checked pairs total: 3111 [2023-11-12 02:32:29,204 INFO L136 LiptonReduction]: Total number of compositions: 64 [2023-11-12 02:32:29,221 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:32:29,228 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1cfa7971, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:32:29,228 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-12 02:32:29,233 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:32:29,233 INFO L124 PetriNetUnfolderBase]: 1/10 cut-off events. [2023-11-12 02:32:29,234 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:32:29,234 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:32:29,235 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 02:32:29,235 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-12 02:32:29,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:32:29,241 INFO L85 PathProgramCache]: Analyzing trace with hash 298649007, now seen corresponding path program 1 times [2023-11-12 02:32:29,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:32:29,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585593968] [2023-11-12 02:32:29,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:32:29,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:32:29,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:29,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:32:29,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:32:29,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585593968] [2023-11-12 02:32:29,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585593968] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:32:29,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:32:29,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:32:29,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375954287] [2023-11-12 02:32:29,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:32:29,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:32:29,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:32:29,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:32:29,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:32:29,808 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 160 [2023-11-12 02:32:29,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 49 flow. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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) [2023-11-12 02:32:29,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:32:29,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 160 [2023-11-12 02:32:29,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:32:29,898 INFO L124 PetriNetUnfolderBase]: 25/103 cut-off events. [2023-11-12 02:32:29,898 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:32:29,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 103 events. 25/103 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 354 event pairs, 20 based on Foata normal form. 5/103 useless extension candidates. Maximal degree in co-relation 167. Up to 55 conditions per place. [2023-11-12 02:32:29,901 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 16 selfloop transitions, 3 changer transitions 0/26 dead transitions. [2023-11-12 02:32:29,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 26 transitions, 93 flow [2023-11-12 02:32:29,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:32:29,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:32:29,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2023-11-12 02:32:29,918 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5916666666666667 [2023-11-12 02:32:29,919 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 284 transitions. [2023-11-12 02:32:29,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 284 transitions. [2023-11-12 02:32:29,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:32:29,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 284 transitions. [2023-11-12 02:32:29,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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) [2023-11-12 02:32:29,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 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) [2023-11-12 02:32:29,937 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 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) [2023-11-12 02:32:29,940 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 49 flow. Second operand 3 states and 284 transitions. [2023-11-12 02:32:29,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 26 transitions, 93 flow [2023-11-12 02:32:29,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 26 transitions, 92 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:32:29,945 INFO L231 Difference]: Finished difference. Result has 27 places, 21 transitions, 57 flow [2023-11-12 02:32:29,947 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=57, PETRI_PLACES=27, PETRI_TRANSITIONS=21} [2023-11-12 02:32:29,952 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 1 predicate places. [2023-11-12 02:32:29,952 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 21 transitions, 57 flow [2023-11-12 02:32:29,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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) [2023-11-12 02:32:29,953 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:32:29,954 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:32:29,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:32:29,954 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-12 02:32:29,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:32:29,956 INFO L85 PathProgramCache]: Analyzing trace with hash 832137503, now seen corresponding path program 1 times [2023-11-12 02:32:29,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:32:29,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658201463] [2023-11-12 02:32:29,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:32:29,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:32:29,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:30,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:32:30,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:32:30,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658201463] [2023-11-12 02:32:30,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658201463] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:32:30,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:32:30,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:32:30,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954330751] [2023-11-12 02:32:30,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:32:30,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:32:30,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:32:30,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:32:30,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:32:30,113 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 160 [2023-11-12 02:32:30,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 21 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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) [2023-11-12 02:32:30,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:32:30,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 160 [2023-11-12 02:32:30,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:32:30,206 INFO L124 PetriNetUnfolderBase]: 34/124 cut-off events. [2023-11-12 02:32:30,214 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-12 02:32:30,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 124 events. 34/124 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 417 event pairs, 14 based on Foata normal form. 18/142 useless extension candidates. Maximal degree in co-relation 257. Up to 64 conditions per place. [2023-11-12 02:32:30,217 INFO L140 encePairwiseOnDemand]: 150/160 looper letters, 16 selfloop transitions, 8 changer transitions 7/33 dead transitions. [2023-11-12 02:32:30,217 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 33 transitions, 151 flow [2023-11-12 02:32:30,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:32:30,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:32:30,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 266 transitions. [2023-11-12 02:32:30,224 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5541666666666667 [2023-11-12 02:32:30,227 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 266 transitions. [2023-11-12 02:32:30,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 266 transitions. [2023-11-12 02:32:30,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:32:30,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 266 transitions. [2023-11-12 02:32:30,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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) [2023-11-12 02:32:30,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 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) [2023-11-12 02:32:30,234 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 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) [2023-11-12 02:32:30,235 INFO L175 Difference]: Start difference. First operand has 27 places, 21 transitions, 57 flow. Second operand 3 states and 266 transitions. [2023-11-12 02:32:30,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 33 transitions, 151 flow [2023-11-12 02:32:30,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 33 transitions, 141 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:32:30,238 INFO L231 Difference]: Finished difference. Result has 28 places, 23 transitions, 87 flow [2023-11-12 02:32:30,239 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=87, PETRI_PLACES=28, PETRI_TRANSITIONS=23} [2023-11-12 02:32:30,240 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 2 predicate places. [2023-11-12 02:32:30,240 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 23 transitions, 87 flow [2023-11-12 02:32:30,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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) [2023-11-12 02:32:30,240 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:32:30,241 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:32:30,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:32:30,241 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-12 02:32:30,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:32:30,242 INFO L85 PathProgramCache]: Analyzing trace with hash 8987897, now seen corresponding path program 1 times [2023-11-12 02:32:30,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:32:30,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111298198] [2023-11-12 02:32:30,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:32:30,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:32:30,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:30,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:32:30,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:32:30,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111298198] [2023-11-12 02:32:30,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111298198] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:32:30,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:32:30,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:32:30,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394346981] [2023-11-12 02:32:30,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:32:30,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:32:30,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:32:30,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:32:30,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:32:30,723 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 160 [2023-11-12 02:32:30,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 23 transitions, 87 flow. Second operand has 5 states, 5 states have (on average 80.0) internal successors, (400), 5 states have internal predecessors, (400), 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) [2023-11-12 02:32:30,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:32:30,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 160 [2023-11-12 02:32:30,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:32:30,804 INFO L124 PetriNetUnfolderBase]: 22/105 cut-off events. [2023-11-12 02:32:30,805 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2023-11-12 02:32:30,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 105 events. 22/105 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 341 event pairs, 14 based on Foata normal form. 5/110 useless extension candidates. Maximal degree in co-relation 283. Up to 61 conditions per place. [2023-11-12 02:32:30,806 INFO L140 encePairwiseOnDemand]: 155/160 looper letters, 17 selfloop transitions, 5 changer transitions 2/26 dead transitions. [2023-11-12 02:32:30,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 26 transitions, 147 flow [2023-11-12 02:32:30,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:32:30,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:32:30,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 336 transitions. [2023-11-12 02:32:30,809 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.525 [2023-11-12 02:32:30,809 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 336 transitions. [2023-11-12 02:32:30,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 336 transitions. [2023-11-12 02:32:30,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:32:30,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 336 transitions. [2023-11-12 02:32:30,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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) [2023-11-12 02:32:30,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 160.0) internal successors, (800), 5 states have internal predecessors, (800), 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) [2023-11-12 02:32:30,814 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 160.0) internal successors, (800), 5 states have internal predecessors, (800), 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) [2023-11-12 02:32:30,814 INFO L175 Difference]: Start difference. First operand has 28 places, 23 transitions, 87 flow. Second operand 4 states and 336 transitions. [2023-11-12 02:32:30,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 26 transitions, 147 flow [2023-11-12 02:32:30,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 26 transitions, 137 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:32:30,817 INFO L231 Difference]: Finished difference. Result has 29 places, 22 transitions, 85 flow [2023-11-12 02:32:30,817 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=85, PETRI_PLACES=29, PETRI_TRANSITIONS=22} [2023-11-12 02:32:30,818 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2023-11-12 02:32:30,818 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 22 transitions, 85 flow [2023-11-12 02:32:30,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 80.0) internal successors, (400), 5 states have internal predecessors, (400), 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) [2023-11-12 02:32:30,819 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:32:30,819 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:32:30,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:32:30,819 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-12 02:32:30,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:32:30,820 INFO L85 PathProgramCache]: Analyzing trace with hash 990172615, now seen corresponding path program 1 times [2023-11-12 02:32:30,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:32:30,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171629662] [2023-11-12 02:32:30,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:32:30,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:32:30,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:31,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:32:31,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:32:31,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171629662] [2023-11-12 02:32:31,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171629662] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:32:31,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:32:31,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:32:31,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718603189] [2023-11-12 02:32:31,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:32:31,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:32:31,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:32:31,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:32:31,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:32:31,166 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 160 [2023-11-12 02:32:31,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 22 transitions, 85 flow. Second operand has 5 states, 5 states have (on average 78.6) internal successors, (393), 5 states have internal predecessors, (393), 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) [2023-11-12 02:32:31,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:32:31,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 160 [2023-11-12 02:32:31,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:32:31,232 INFO L124 PetriNetUnfolderBase]: 9/60 cut-off events. [2023-11-12 02:32:31,232 INFO L125 PetriNetUnfolderBase]: For 9/10 co-relation queries the response was YES. [2023-11-12 02:32:31,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 60 events. 9/60 cut-off events. For 9/10 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 131 event pairs, 3 based on Foata normal form. 2/62 useless extension candidates. Maximal degree in co-relation 161. Up to 38 conditions per place. [2023-11-12 02:32:31,233 INFO L140 encePairwiseOnDemand]: 151/160 looper letters, 8 selfloop transitions, 6 changer transitions 7/23 dead transitions. [2023-11-12 02:32:31,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 23 transitions, 129 flow [2023-11-12 02:32:31,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:32:31,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:32:31,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 326 transitions. [2023-11-12 02:32:31,236 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.509375 [2023-11-12 02:32:31,236 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 326 transitions. [2023-11-12 02:32:31,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 326 transitions. [2023-11-12 02:32:31,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:32:31,237 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 326 transitions. [2023-11-12 02:32:31,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 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) [2023-11-12 02:32:31,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 160.0) internal successors, (800), 5 states have internal predecessors, (800), 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) [2023-11-12 02:32:31,242 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 160.0) internal successors, (800), 5 states have internal predecessors, (800), 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) [2023-11-12 02:32:31,242 INFO L175 Difference]: Start difference. First operand has 29 places, 22 transitions, 85 flow. Second operand 4 states and 326 transitions. [2023-11-12 02:32:31,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 23 transitions, 129 flow [2023-11-12 02:32:31,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 23 transitions, 117 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-12 02:32:31,246 INFO L231 Difference]: Finished difference. Result has 29 places, 15 transitions, 59 flow [2023-11-12 02:32:31,246 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=59, PETRI_PLACES=29, PETRI_TRANSITIONS=15} [2023-11-12 02:32:31,248 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2023-11-12 02:32:31,249 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 15 transitions, 59 flow [2023-11-12 02:32:31,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 78.6) internal successors, (393), 5 states have internal predecessors, (393), 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) [2023-11-12 02:32:31,250 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:32:31,250 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:32:31,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:32:31,251 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-12 02:32:31,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:32:31,252 INFO L85 PathProgramCache]: Analyzing trace with hash 877566173, now seen corresponding path program 1 times [2023-11-12 02:32:31,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:32:31,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662719287] [2023-11-12 02:32:31,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:32:31,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:32:31,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:31,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:32:31,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:32:31,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662719287] [2023-11-12 02:32:31,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662719287] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:32:31,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:32:31,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:32:31,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792762429] [2023-11-12 02:32:31,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:32:31,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:32:31,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:32:31,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:32:31,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:32:31,847 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 160 [2023-11-12 02:32:31,848 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 15 transitions, 59 flow. Second operand has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 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) [2023-11-12 02:32:31,848 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:32:31,848 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 160 [2023-11-12 02:32:31,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:32:31,894 INFO L124 PetriNetUnfolderBase]: 5/31 cut-off events. [2023-11-12 02:32:31,894 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-11-12 02:32:31,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 31 events. 5/31 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 6/37 useless extension candidates. Maximal degree in co-relation 74. Up to 20 conditions per place. [2023-11-12 02:32:31,895 INFO L140 encePairwiseOnDemand]: 157/160 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2023-11-12 02:32:31,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 19 transitions, 111 flow [2023-11-12 02:32:31,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:32:31,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:32:31,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 328 transitions. [2023-11-12 02:32:31,898 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5125 [2023-11-12 02:32:31,898 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 328 transitions. [2023-11-12 02:32:31,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 328 transitions. [2023-11-12 02:32:31,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:32:31,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 328 transitions. [2023-11-12 02:32:31,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 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) [2023-11-12 02:32:31,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 160.0) internal successors, (800), 5 states have internal predecessors, (800), 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) [2023-11-12 02:32:31,903 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 160.0) internal successors, (800), 5 states have internal predecessors, (800), 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) [2023-11-12 02:32:31,903 INFO L175 Difference]: Start difference. First operand has 29 places, 15 transitions, 59 flow. Second operand 4 states and 328 transitions. [2023-11-12 02:32:31,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 19 transitions, 111 flow [2023-11-12 02:32:31,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 19 transitions, 90 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-11-12 02:32:31,905 INFO L231 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2023-11-12 02:32:31,905 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2023-11-12 02:32:31,906 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -4 predicate places. [2023-11-12 02:32:31,906 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 0 transitions, 0 flow [2023-11-12 02:32:31,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 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) [2023-11-12 02:32:31,909 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-11-12 02:32:31,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2023-11-12 02:32:31,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-11-12 02:32:31,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:32:31,911 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-12 02:32:31,914 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 02:32:31,915 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:32:31,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:32:31 BasicIcfg [2023-11-12 02:32:31,919 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:32:31,920 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:32:31,920 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:32:31,920 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:32:31,921 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:32:25" (3/4) ... [2023-11-12 02:32:31,923 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:32:31,928 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-12 02:32:31,938 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-12 02:32:31,938 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-12 02:32:31,938 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 02:32:31,939 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:32:32,032 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdeaab00-6be2-4deb-8c4b-eb257f6ac599/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:32:32,032 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdeaab00-6be2-4deb-8c4b-eb257f6ac599/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:32:32,032 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:32:32,033 INFO L158 Benchmark]: Toolchain (without parser) took 8347.10ms. Allocated memory was 136.3MB in the beginning and 197.1MB in the end (delta: 60.8MB). Free memory was 89.9MB in the beginning and 120.8MB in the end (delta: -30.9MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2023-11-12 02:32:32,034 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 136.3MB. Free memory is still 111.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:32:32,034 INFO L158 Benchmark]: CACSL2BoogieTranslator took 660.98ms. Allocated memory is still 136.3MB. Free memory was 89.5MB in the beginning and 70.0MB in the end (delta: 19.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-12 02:32:32,034 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.17ms. Allocated memory is still 136.3MB. Free memory was 70.0MB in the beginning and 67.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:32:32,035 INFO L158 Benchmark]: Boogie Preprocessor took 64.68ms. Allocated memory is still 136.3MB. Free memory was 67.9MB in the beginning and 66.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:32:32,035 INFO L158 Benchmark]: RCFGBuilder took 592.32ms. Allocated memory was 136.3MB in the beginning and 197.1MB in the end (delta: 60.8MB). Free memory was 66.4MB in the beginning and 160.0MB in the end (delta: -93.5MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2023-11-12 02:32:32,036 INFO L158 Benchmark]: TraceAbstraction took 6827.33ms. Allocated memory is still 197.1MB. Free memory was 158.9MB in the beginning and 125.0MB in the end (delta: 33.9MB). Peak memory consumption was 33.9MB. Max. memory is 16.1GB. [2023-11-12 02:32:32,036 INFO L158 Benchmark]: Witness Printer took 112.70ms. Allocated memory is still 197.1MB. Free memory was 125.0MB in the beginning and 120.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:32:32,038 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 136.3MB. Free memory is still 111.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 660.98ms. Allocated memory is still 136.3MB. Free memory was 89.5MB in the beginning and 70.0MB in the end (delta: 19.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.17ms. Allocated memory is still 136.3MB. Free memory was 70.0MB in the beginning and 67.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.68ms. Allocated memory is still 136.3MB. Free memory was 67.9MB in the beginning and 66.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 592.32ms. Allocated memory was 136.3MB in the beginning and 197.1MB in the end (delta: 60.8MB). Free memory was 66.4MB in the beginning and 160.0MB in the end (delta: -93.5MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. * TraceAbstraction took 6827.33ms. Allocated memory is still 197.1MB. Free memory was 158.9MB in the beginning and 125.0MB in the end (delta: 33.9MB). Peak memory consumption was 33.9MB. Max. memory is 16.1GB. * Witness Printer took 112.70ms. Allocated memory is still 197.1MB. Free memory was 125.0MB in the beginning and 120.8MB 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: 3.8s, 82 PlacesBefore, 26 PlacesAfterwards, 79 TransitionsBefore, 23 TransitionsAfterwards, 918 CoEnabledTransitionPairs, 6 FixpointIterations, 33 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 64 TotalNumberOfCompositions, 3111 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 974, independent: 759, independent conditional: 0, independent unconditional: 759, dependent: 215, dependent conditional: 0, dependent unconditional: 215, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 485, independent: 442, independent conditional: 0, independent unconditional: 442, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 974, independent: 317, independent conditional: 0, independent unconditional: 317, dependent: 172, dependent conditional: 0, dependent unconditional: 172, unknown: 485, unknown conditional: 0, unknown unconditional: 485] , Statistics on independence cache: Total cache size (in pairs): 46, Positive cache size: 21, Positive conditional cache size: 0, Positive unconditional cache size: 21, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: 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 3 procedures, 114 locations, 3 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: 6.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 386 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 195 mSDsluCounter, 116 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 99 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 627 IncrementalHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 99 mSolverCounterUnsat, 80 mSDtfsCounter, 627 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=2, InterpolantAutomatonStates: 18, 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, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 392 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-12 02:32:32,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdeaab00-6be2-4deb-8c4b-eb257f6ac599/bin/uautomizer-verify-uTZkv6EMXl/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