./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff 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_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:59:27,511 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:59:27,629 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-19 07:59:27,638 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:59:27,640 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:59:27,681 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:59:27,682 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:59:27,682 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:59:27,684 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:59:27,689 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:59:27,691 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:59:27,691 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:59:27,692 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:59:27,693 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:59:27,694 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:59:27,694 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:59:27,695 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:59:27,695 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:59:27,696 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:59:27,696 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:59:27,696 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:59:27,697 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:59:27,697 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:59:27,698 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:59:27,698 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:59:27,698 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:59:27,699 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:59:27,700 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:59:27,700 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:59:27,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:59:27,702 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:59:27,702 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:59:27,702 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:59:27,703 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:59:27,703 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:59:27,703 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:59:27,703 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:59:27,703 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:59:27,704 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_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 [2023-11-19 07:59:28,028 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:59:28,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:59:28,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:59:28,075 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:59:28,076 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:59:28,078 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2023-11-19 07:59:31,129 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:59:31,512 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:59:31,512 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2023-11-19 07:59:31,540 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/data/beecec432/07bbeee7e142405db942aaf9527baf44/FLAG4a91dcc52 [2023-11-19 07:59:31,557 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/data/beecec432/07bbeee7e142405db942aaf9527baf44 [2023-11-19 07:59:31,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:59:31,565 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:59:31,569 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:59:31,569 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:59:31,575 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:59:31,579 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:31" (1/1) ... [2023-11-19 07:59:31,580 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44cbf3ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:31, skipping insertion in model container [2023-11-19 07:59:31,580 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:31" (1/1) ... [2023-11-19 07:59:31,651 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:59:32,409 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:59:32,425 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:59:32,488 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:59:32,595 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:59:32,595 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:59:32,604 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:59:32,604 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:32 WrapperNode [2023-11-19 07:59:32,605 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:59:32,606 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:59:32,606 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:59:32,606 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:59:32,634 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:32" (1/1) ... [2023-11-19 07:59:32,673 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:32" (1/1) ... [2023-11-19 07:59:32,704 INFO L138 Inliner]: procedures = 365, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 67 [2023-11-19 07:59:32,705 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:59:32,706 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:59:32,706 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:59:32,706 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:59:32,714 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:32" (1/1) ... [2023-11-19 07:59:32,715 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:32" (1/1) ... [2023-11-19 07:59:32,718 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:32" (1/1) ... [2023-11-19 07:59:32,719 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:32" (1/1) ... [2023-11-19 07:59:32,727 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:32" (1/1) ... [2023-11-19 07:59:32,730 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:32" (1/1) ... [2023-11-19 07:59:32,733 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:32" (1/1) ... [2023-11-19 07:59:32,734 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:32" (1/1) ... [2023-11-19 07:59:32,738 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:59:32,739 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:59:32,739 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:59:32,739 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:59:32,741 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:32" (1/1) ... [2023-11-19 07:59:32,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:59:32,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:32,788 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:32,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:59:32,840 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:59:32,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:59:32,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:59:32,842 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:59:32,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:59:32,842 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2023-11-19 07:59:32,843 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2023-11-19 07:59:32,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:59:32,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:59:32,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:59:32,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:59:32,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:59:32,845 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:59:33,001 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:59:33,003 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:59:33,190 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:59:33,202 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:59:33,202 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:59:33,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:33 BoogieIcfgContainer [2023-11-19 07:59:33,207 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:59:33,209 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:59:33,210 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:59:33,214 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:59:33,214 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:59:31" (1/3) ... [2023-11-19 07:59:33,215 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b191982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:59:33, skipping insertion in model container [2023-11-19 07:59:33,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:32" (2/3) ... [2023-11-19 07:59:33,216 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b191982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:59:33, skipping insertion in model container [2023-11-19 07:59:33,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:33" (3/3) ... [2023-11-19 07:59:33,218 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-3.i [2023-11-19 07:59:33,241 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:59:33,241 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-19 07:59:33,242 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:59:33,309 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-19 07:59:33,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 101 transitions, 209 flow [2023-11-19 07:59:33,406 INFO L124 PetriNetUnfolderBase]: 8/100 cut-off events. [2023-11-19 07:59:33,406 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:59:33,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 100 events. 8/100 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 101 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2023-11-19 07:59:33,412 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 101 transitions, 209 flow [2023-11-19 07:59:33,418 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 95 transitions, 196 flow [2023-11-19 07:59:33,422 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:59:33,433 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 95 transitions, 196 flow [2023-11-19 07:59:33,437 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 95 transitions, 196 flow [2023-11-19 07:59:33,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 95 transitions, 196 flow [2023-11-19 07:59:33,464 INFO L124 PetriNetUnfolderBase]: 8/95 cut-off events. [2023-11-19 07:59:33,464 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:59:33,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 95 events. 8/95 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 100 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2023-11-19 07:59:33,467 INFO L119 LiptonReduction]: Number of co-enabled transitions 768 [2023-11-19 07:59:36,065 INFO L134 LiptonReduction]: Checked pairs total: 727 [2023-11-19 07:59:36,065 INFO L136 LiptonReduction]: Total number of compositions: 106 [2023-11-19 07:59:36,090 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:59:36,099 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@72d96f2a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:59:36,099 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-19 07:59:36,101 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:59:36,101 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 07:59:36,102 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:59:36,102 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:59:36,102 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:59:36,103 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-11-19 07:59:36,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:36,110 INFO L85 PathProgramCache]: Analyzing trace with hash 391, now seen corresponding path program 1 times [2023-11-19 07:59:36,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:36,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484246196] [2023-11-19 07:59:36,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:36,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:36,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:36,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:36,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:36,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484246196] [2023-11-19 07:59:36,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484246196] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:36,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:36,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:59:36,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295816579] [2023-11-19 07:59:36,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:36,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:59:36,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:36,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:59:36,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:59:36,301 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 207 [2023-11-19 07:59:36,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 16 transitions, 38 flow. Second operand has 2 states, 2 states have (on average 90.5) internal successors, (181), 2 states have internal predecessors, (181), 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) [2023-11-19 07:59:36,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:59:36,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 207 [2023-11-19 07:59:36,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:59:36,361 INFO L124 PetriNetUnfolderBase]: 21/44 cut-off events. [2023-11-19 07:59:36,361 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:59:36,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 44 events. 21/44 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 91 event pairs, 12 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 80. Up to 45 conditions per place. [2023-11-19 07:59:36,363 INFO L140 encePairwiseOnDemand]: 204/207 looper letters, 13 selfloop transitions, 0 changer transitions 0/13 dead transitions. [2023-11-19 07:59:36,364 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 13 transitions, 58 flow [2023-11-19 07:59:36,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:59:36,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:59:36,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 196 transitions. [2023-11-19 07:59:36,380 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47342995169082125 [2023-11-19 07:59:36,381 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 196 transitions. [2023-11-19 07:59:36,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 196 transitions. [2023-11-19 07:59:36,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:59:36,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 196 transitions. [2023-11-19 07:59:36,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 98.0) internal successors, (196), 2 states have internal predecessors, (196), 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) [2023-11-19 07:59:36,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 207.0) internal successors, (621), 3 states have internal predecessors, (621), 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) [2023-11-19 07:59:36,403 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 207.0) internal successors, (621), 3 states have internal predecessors, (621), 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) [2023-11-19 07:59:36,405 INFO L175 Difference]: Start difference. First operand has 18 places, 16 transitions, 38 flow. Second operand 2 states and 196 transitions. [2023-11-19 07:59:36,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 13 transitions, 58 flow [2023-11-19 07:59:36,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 13 transitions, 54 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:59:36,410 INFO L231 Difference]: Finished difference. Result has 14 places, 13 transitions, 28 flow [2023-11-19 07:59:36,413 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=28, PETRI_PLACES=14, PETRI_TRANSITIONS=13} [2023-11-19 07:59:36,417 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, -4 predicate places. [2023-11-19 07:59:36,417 INFO L495 AbstractCegarLoop]: Abstraction has has 14 places, 13 transitions, 28 flow [2023-11-19 07:59:36,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 90.5) internal successors, (181), 2 states have internal predecessors, (181), 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) [2023-11-19 07:59:36,418 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:59:36,419 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-19 07:59:36,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:59:36,419 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-11-19 07:59:36,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:36,430 INFO L85 PathProgramCache]: Analyzing trace with hash 11934395, now seen corresponding path program 1 times [2023-11-19 07:59:36,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:36,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873437989] [2023-11-19 07:59:36,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:36,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:36,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:36,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:36,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:36,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873437989] [2023-11-19 07:59:36,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873437989] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:36,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:36,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:59:36,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151658637] [2023-11-19 07:59:36,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:36,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:59:36,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:36,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:59:36,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:59:36,600 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 207 [2023-11-19 07:59:36,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 13 transitions, 28 flow. Second operand has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2023-11-19 07:59:36,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:59:36,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 207 [2023-11-19 07:59:36,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:59:36,649 INFO L124 PetriNetUnfolderBase]: 25/52 cut-off events. [2023-11-19 07:59:36,649 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:59:36,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 52 events. 25/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 120 event pairs, 12 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 105. Up to 45 conditions per place. [2023-11-19 07:59:36,650 INFO L140 encePairwiseOnDemand]: 202/207 looper letters, 16 selfloop transitions, 2 changer transitions 0/18 dead transitions. [2023-11-19 07:59:36,650 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 18 transitions, 74 flow [2023-11-19 07:59:36,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:59:36,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:59:36,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 273 transitions. [2023-11-19 07:59:36,654 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4396135265700483 [2023-11-19 07:59:36,654 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 273 transitions. [2023-11-19 07:59:36,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 273 transitions. [2023-11-19 07:59:36,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:59:36,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 273 transitions. [2023-11-19 07:59:36,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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) [2023-11-19 07:59:36,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 207.0) internal successors, (828), 4 states have internal predecessors, (828), 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) [2023-11-19 07:59:36,660 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 207.0) internal successors, (828), 4 states have internal predecessors, (828), 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) [2023-11-19 07:59:36,661 INFO L175 Difference]: Start difference. First operand has 14 places, 13 transitions, 28 flow. Second operand 3 states and 273 transitions. [2023-11-19 07:59:36,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 18 transitions, 74 flow [2023-11-19 07:59:36,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 18 transitions, 74 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:59:36,662 INFO L231 Difference]: Finished difference. Result has 17 places, 14 transitions, 44 flow [2023-11-19 07:59:36,663 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=17, PETRI_TRANSITIONS=14} [2023-11-19 07:59:36,664 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, -1 predicate places. [2023-11-19 07:59:36,664 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 14 transitions, 44 flow [2023-11-19 07:59:36,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2023-11-19 07:59:36,664 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:59:36,665 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:59:36,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:59:36,665 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-11-19 07:59:36,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:36,666 INFO L85 PathProgramCache]: Analyzing trace with hash 369966849, now seen corresponding path program 1 times [2023-11-19 07:59:36,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:36,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582262472] [2023-11-19 07:59:36,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:36,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:36,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:36,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:36,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582262472] [2023-11-19 07:59:36,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582262472] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:59:36,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455191940] [2023-11-19 07:59:36,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:36,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:59:36,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:36,749 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:59:36,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:59:36,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:36,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:59:36,861 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:36,920 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:36,920 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:59:36,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:36,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [455191940] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:59:36,949 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:59:36,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-19 07:59:36,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852838775] [2023-11-19 07:59:36,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:59:36,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:59:36,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:36,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:59:36,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:59:36,971 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 207 [2023-11-19 07:59:36,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 14 transitions, 44 flow. Second operand has 7 states, 7 states have (on average 84.42857142857143) internal successors, (591), 7 states have internal predecessors, (591), 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) [2023-11-19 07:59:36,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:59:36,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 207 [2023-11-19 07:59:36,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:59:37,073 INFO L124 PetriNetUnfolderBase]: 37/76 cut-off events. [2023-11-19 07:59:37,074 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-11-19 07:59:37,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 76 events. 37/76 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 164 event pairs, 12 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 193. Up to 45 conditions per place. [2023-11-19 07:59:37,075 INFO L140 encePairwiseOnDemand]: 202/207 looper letters, 28 selfloop transitions, 5 changer transitions 0/33 dead transitions. [2023-11-19 07:59:37,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 33 transitions, 154 flow [2023-11-19 07:59:37,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:59:37,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:59:37,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 540 transitions. [2023-11-19 07:59:37,081 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43478260869565216 [2023-11-19 07:59:37,081 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 540 transitions. [2023-11-19 07:59:37,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 540 transitions. [2023-11-19 07:59:37,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:59:37,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 540 transitions. [2023-11-19 07:59:37,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 90.0) internal successors, (540), 6 states have internal predecessors, (540), 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) [2023-11-19 07:59:37,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 207.0) internal successors, (1449), 7 states have internal predecessors, (1449), 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) [2023-11-19 07:59:37,092 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 207.0) internal successors, (1449), 7 states have internal predecessors, (1449), 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) [2023-11-19 07:59:37,093 INFO L175 Difference]: Start difference. First operand has 17 places, 14 transitions, 44 flow. Second operand 6 states and 540 transitions. [2023-11-19 07:59:37,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 33 transitions, 154 flow [2023-11-19 07:59:37,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 33 transitions, 150 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-19 07:59:37,095 INFO L231 Difference]: Finished difference. Result has 24 places, 17 transitions, 88 flow [2023-11-19 07:59:37,095 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=88, PETRI_PLACES=24, PETRI_TRANSITIONS=17} [2023-11-19 07:59:37,097 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 6 predicate places. [2023-11-19 07:59:37,097 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 17 transitions, 88 flow [2023-11-19 07:59:37,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 84.42857142857143) internal successors, (591), 7 states have internal predecessors, (591), 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) [2023-11-19 07:59:37,098 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:59:37,098 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1] [2023-11-19 07:59:37,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:37,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:59:37,299 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-11-19 07:59:37,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:37,300 INFO L85 PathProgramCache]: Analyzing trace with hash 796916795, now seen corresponding path program 2 times [2023-11-19 07:59:37,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:37,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703452067] [2023-11-19 07:59:37,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:37,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:37,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:37,478 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 07:59:37,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:37,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703452067] [2023-11-19 07:59:37,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703452067] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:37,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:37,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:59:37,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813601969] [2023-11-19 07:59:37,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:37,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:59:37,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:37,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:59:37,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:59:37,510 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 207 [2023-11-19 07:59:37,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 17 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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) [2023-11-19 07:59:37,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:59:37,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 207 [2023-11-19 07:59:37,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:59:37,558 INFO L124 PetriNetUnfolderBase]: 33/68 cut-off events. [2023-11-19 07:59:37,558 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2023-11-19 07:59:37,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 68 events. 33/68 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 126 event pairs, 21 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 225. Up to 68 conditions per place. [2023-11-19 07:59:37,564 INFO L140 encePairwiseOnDemand]: 205/207 looper letters, 15 selfloop transitions, 1 changer transitions 0/16 dead transitions. [2023-11-19 07:59:37,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 16 transitions, 110 flow [2023-11-19 07:59:37,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:59:37,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:59:37,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2023-11-19 07:59:37,567 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41223832528180354 [2023-11-19 07:59:37,568 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 256 transitions. [2023-11-19 07:59:37,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 256 transitions. [2023-11-19 07:59:37,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:59:37,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 256 transitions. [2023-11-19 07:59:37,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2023-11-19 07:59:37,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 207.0) internal successors, (828), 4 states have internal predecessors, (828), 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) [2023-11-19 07:59:37,572 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 207.0) internal successors, (828), 4 states have internal predecessors, (828), 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) [2023-11-19 07:59:37,572 INFO L175 Difference]: Start difference. First operand has 24 places, 17 transitions, 88 flow. Second operand 3 states and 256 transitions. [2023-11-19 07:59:37,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 16 transitions, 110 flow [2023-11-19 07:59:37,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 16 transitions, 96 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-11-19 07:59:37,575 INFO L231 Difference]: Finished difference. Result has 24 places, 16 transitions, 66 flow [2023-11-19 07:59:37,576 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=22, 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=3, PETRI_FLOW=66, PETRI_PLACES=24, PETRI_TRANSITIONS=16} [2023-11-19 07:59:37,576 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 6 predicate places. [2023-11-19 07:59:37,577 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 16 transitions, 66 flow [2023-11-19 07:59:37,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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) [2023-11-19 07:59:37,577 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:59:37,578 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1] [2023-11-19 07:59:37,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:59:37,578 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-11-19 07:59:37,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:37,579 INFO L85 PathProgramCache]: Analyzing trace with hash 796916796, now seen corresponding path program 1 times [2023-11-19 07:59:37,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:37,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140269655] [2023-11-19 07:59:37,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:37,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:37,681 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:37,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:37,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140269655] [2023-11-19 07:59:37,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140269655] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:59:37,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104067628] [2023-11-19 07:59:37,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:37,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:59:37,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:37,689 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:59:37,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:59:37,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:37,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:59:37,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:37,816 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:37,816 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:59:37,882 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:37,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104067628] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:59:37,883 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:59:37,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-19 07:59:37,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328560135] [2023-11-19 07:59:37,884 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:59:37,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-19 07:59:37,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:37,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-19 07:59:37,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:59:37,916 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 207 [2023-11-19 07:59:37,918 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 16 transitions, 66 flow. Second operand has 13 states, 13 states have (on average 84.23076923076923) internal successors, (1095), 13 states have internal predecessors, (1095), 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) [2023-11-19 07:59:37,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:59:37,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 207 [2023-11-19 07:59:37,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:59:38,074 INFO L124 PetriNetUnfolderBase]: 57/116 cut-off events. [2023-11-19 07:59:38,075 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2023-11-19 07:59:38,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 116 events. 57/116 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 240 event pairs, 9 based on Foata normal form. 24/122 useless extension candidates. Maximal degree in co-relation 342. Up to 41 conditions per place. [2023-11-19 07:59:38,081 INFO L140 encePairwiseOnDemand]: 203/207 looper letters, 51 selfloop transitions, 11 changer transitions 0/62 dead transitions. [2023-11-19 07:59:38,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 62 transitions, 306 flow [2023-11-19 07:59:38,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:59:38,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-19 07:59:38,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1070 transitions. [2023-11-19 07:59:38,087 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4307568438003221 [2023-11-19 07:59:38,087 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1070 transitions. [2023-11-19 07:59:38,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1070 transitions. [2023-11-19 07:59:38,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:59:38,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1070 transitions. [2023-11-19 07:59:38,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 89.16666666666667) internal successors, (1070), 12 states have internal predecessors, (1070), 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) [2023-11-19 07:59:38,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 207.0) internal successors, (2691), 13 states have internal predecessors, (2691), 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) [2023-11-19 07:59:38,101 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 207.0) internal successors, (2691), 13 states have internal predecessors, (2691), 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) [2023-11-19 07:59:38,101 INFO L175 Difference]: Start difference. First operand has 24 places, 16 transitions, 66 flow. Second operand 12 states and 1070 transitions. [2023-11-19 07:59:38,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 62 transitions, 306 flow [2023-11-19 07:59:38,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 62 transitions, 305 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:59:38,109 INFO L231 Difference]: Finished difference. Result has 40 places, 22 transitions, 161 flow [2023-11-19 07:59:38,109 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=161, PETRI_PLACES=40, PETRI_TRANSITIONS=22} [2023-11-19 07:59:38,113 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 22 predicate places. [2023-11-19 07:59:38,114 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 22 transitions, 161 flow [2023-11-19 07:59:38,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 84.23076923076923) internal successors, (1095), 13 states have internal predecessors, (1095), 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) [2023-11-19 07:59:38,115 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:59:38,115 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1] [2023-11-19 07:59:38,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:38,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:59:38,324 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-11-19 07:59:38,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:38,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1353508476, now seen corresponding path program 2 times [2023-11-19 07:59:38,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:38,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319260975] [2023-11-19 07:59:38,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:38,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:38,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:38,432 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-19 07:59:38,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:38,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319260975] [2023-11-19 07:59:38,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319260975] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:38,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:38,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:59:38,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406993064] [2023-11-19 07:59:38,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:38,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:59:38,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:38,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:59:38,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:59:38,456 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 207 [2023-11-19 07:59:38,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 22 transitions, 161 flow. Second operand has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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) [2023-11-19 07:59:38,457 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:59:38,457 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 207 [2023-11-19 07:59:38,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:59:38,490 INFO L124 PetriNetUnfolderBase]: 53/108 cut-off events. [2023-11-19 07:59:38,490 INFO L125 PetriNetUnfolderBase]: For 160/160 co-relation queries the response was YES. [2023-11-19 07:59:38,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 421 conditions, 108 events. 53/108 cut-off events. For 160/160 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 199 event pairs, 36 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 406. Up to 108 conditions per place. [2023-11-19 07:59:38,492 INFO L140 encePairwiseOnDemand]: 205/207 looper letters, 20 selfloop transitions, 1 changer transitions 0/21 dead transitions. [2023-11-19 07:59:38,492 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 21 transitions, 181 flow [2023-11-19 07:59:38,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:59:38,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:59:38,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2023-11-19 07:59:38,494 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4251207729468599 [2023-11-19 07:59:38,495 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 264 transitions. [2023-11-19 07:59:38,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 264 transitions. [2023-11-19 07:59:38,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:59:38,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 264 transitions. [2023-11-19 07:59:38,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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) [2023-11-19 07:59:38,498 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 207.0) internal successors, (828), 4 states have internal predecessors, (828), 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) [2023-11-19 07:59:38,498 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 207.0) internal successors, (828), 4 states have internal predecessors, (828), 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) [2023-11-19 07:59:38,499 INFO L175 Difference]: Start difference. First operand has 40 places, 22 transitions, 161 flow. Second operand 3 states and 264 transitions. [2023-11-19 07:59:38,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 21 transitions, 181 flow [2023-11-19 07:59:38,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 21 transitions, 133 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-11-19 07:59:38,503 INFO L231 Difference]: Finished difference. Result has 36 places, 21 transitions, 93 flow [2023-11-19 07:59:38,503 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=93, PETRI_PLACES=36, PETRI_TRANSITIONS=21} [2023-11-19 07:59:38,508 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 18 predicate places. [2023-11-19 07:59:38,508 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 21 transitions, 93 flow [2023-11-19 07:59:38,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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) [2023-11-19 07:59:38,509 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:59:38,509 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:38,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:59:38,509 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-11-19 07:59:38,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:38,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1438676611, now seen corresponding path program 1 times [2023-11-19 07:59:38,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:38,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802399372] [2023-11-19 07:59:38,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:38,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:38,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:38,569 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-19 07:59:38,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:38,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802399372] [2023-11-19 07:59:38,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802399372] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:38,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:38,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:59:38,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622880250] [2023-11-19 07:59:38,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:38,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:59:38,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:38,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:59:38,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:59:38,582 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 207 [2023-11-19 07:59:38,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 21 transitions, 93 flow. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2023-11-19 07:59:38,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:59:38,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 207 [2023-11-19 07:59:38,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:59:38,626 INFO L124 PetriNetUnfolderBase]: 79/160 cut-off events. [2023-11-19 07:59:38,626 INFO L125 PetriNetUnfolderBase]: For 340/340 co-relation queries the response was YES. [2023-11-19 07:59:38,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 476 conditions, 160 events. 79/160 cut-off events. For 340/340 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 434 event pairs, 36 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 461. Up to 109 conditions per place. [2023-11-19 07:59:38,628 INFO L140 encePairwiseOnDemand]: 204/207 looper letters, 34 selfloop transitions, 2 changer transitions 0/36 dead transitions. [2023-11-19 07:59:38,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 36 transitions, 241 flow [2023-11-19 07:59:38,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:59:38,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:59:38,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 275 transitions. [2023-11-19 07:59:38,631 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4428341384863124 [2023-11-19 07:59:38,631 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 275 transitions. [2023-11-19 07:59:38,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 275 transitions. [2023-11-19 07:59:38,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:59:38,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 275 transitions. [2023-11-19 07:59:38,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 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) [2023-11-19 07:59:38,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 207.0) internal successors, (828), 4 states have internal predecessors, (828), 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) [2023-11-19 07:59:38,635 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 207.0) internal successors, (828), 4 states have internal predecessors, (828), 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) [2023-11-19 07:59:38,635 INFO L175 Difference]: Start difference. First operand has 36 places, 21 transitions, 93 flow. Second operand 3 states and 275 transitions. [2023-11-19 07:59:38,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 36 transitions, 241 flow [2023-11-19 07:59:38,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 36 transitions, 240 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:59:38,639 INFO L231 Difference]: Finished difference. Result has 38 places, 22 transitions, 104 flow [2023-11-19 07:59:38,639 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=38, PETRI_TRANSITIONS=22} [2023-11-19 07:59:38,640 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 20 predicate places. [2023-11-19 07:59:38,640 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 22 transitions, 104 flow [2023-11-19 07:59:38,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2023-11-19 07:59:38,641 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:59:38,641 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:38,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:59:38,641 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-11-19 07:59:38,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:38,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1350426069, now seen corresponding path program 1 times [2023-11-19 07:59:38,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:38,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237989783] [2023-11-19 07:59:38,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:38,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:38,703 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-19 07:59:38,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:38,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237989783] [2023-11-19 07:59:38,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237989783] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:59:38,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874044758] [2023-11-19 07:59:38,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:38,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:59:38,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:38,706 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:59:38,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:59:38,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:38,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:59:38,801 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:38,831 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-19 07:59:38,832 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:59:38,871 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-19 07:59:38,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874044758] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:59:38,872 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:59:38,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-19 07:59:38,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886486866] [2023-11-19 07:59:38,872 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:59:38,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:59:38,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:38,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:59:38,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:59:38,893 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 207 [2023-11-19 07:59:38,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 22 transitions, 104 flow. Second operand has 7 states, 7 states have (on average 88.0) internal successors, (616), 7 states have internal predecessors, (616), 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) [2023-11-19 07:59:38,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:59:38,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 207 [2023-11-19 07:59:38,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:59:39,000 INFO L124 PetriNetUnfolderBase]: 144/290 cut-off events. [2023-11-19 07:59:39,000 INFO L125 PetriNetUnfolderBase]: For 763/763 co-relation queries the response was YES. [2023-11-19 07:59:39,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 943 conditions, 290 events. 144/290 cut-off events. For 763/763 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 992 event pairs, 24 based on Foata normal form. 39/329 useless extension candidates. Maximal degree in co-relation 927. Up to 70 conditions per place. [2023-11-19 07:59:39,004 INFO L140 encePairwiseOnDemand]: 203/207 looper letters, 74 selfloop transitions, 6 changer transitions 0/80 dead transitions. [2023-11-19 07:59:39,004 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 80 transitions, 568 flow [2023-11-19 07:59:39,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:59:39,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:59:39,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 543 transitions. [2023-11-19 07:59:39,008 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43719806763285024 [2023-11-19 07:59:39,008 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 543 transitions. [2023-11-19 07:59:39,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 543 transitions. [2023-11-19 07:59:39,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:59:39,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 543 transitions. [2023-11-19 07:59:39,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 90.5) internal successors, (543), 6 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:39,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 207.0) internal successors, (1449), 7 states have internal predecessors, (1449), 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) [2023-11-19 07:59:39,014 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 207.0) internal successors, (1449), 7 states have internal predecessors, (1449), 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) [2023-11-19 07:59:39,014 INFO L175 Difference]: Start difference. First operand has 38 places, 22 transitions, 104 flow. Second operand 6 states and 543 transitions. [2023-11-19 07:59:39,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 80 transitions, 568 flow [2023-11-19 07:59:39,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 80 transitions, 566 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:59:39,019 INFO L231 Difference]: Finished difference. Result has 46 places, 25 transitions, 142 flow [2023-11-19 07:59:39,019 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=142, PETRI_PLACES=46, PETRI_TRANSITIONS=25} [2023-11-19 07:59:39,037 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 28 predicate places. [2023-11-19 07:59:39,037 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 25 transitions, 142 flow [2023-11-19 07:59:39,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 88.0) internal successors, (616), 7 states have internal predecessors, (616), 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) [2023-11-19 07:59:39,038 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:59:39,038 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:39,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:39,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-19 07:59:39,259 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-11-19 07:59:39,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:39,259 INFO L85 PathProgramCache]: Analyzing trace with hash 2074910859, now seen corresponding path program 2 times [2023-11-19 07:59:39,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:39,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475866737] [2023-11-19 07:59:39,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:39,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:39,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:39,419 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-19 07:59:39,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:39,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475866737] [2023-11-19 07:59:39,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475866737] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:59:39,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609927311] [2023-11-19 07:59:39,421 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:59:39,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:59:39,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:39,422 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:59:39,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:59:39,531 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:59:39,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:59:39,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:59:39,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:39,585 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-19 07:59:39,586 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:59:39,694 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-19 07:59:39,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609927311] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:59:39,695 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:59:39,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2023-11-19 07:59:39,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191456245] [2023-11-19 07:59:39,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:59:39,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-19 07:59:39,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:39,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-19 07:59:39,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:59:39,727 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 207 [2023-11-19 07:59:39,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 25 transitions, 142 flow. Second operand has 13 states, 13 states have (on average 87.46153846153847) internal successors, (1137), 13 states have internal predecessors, (1137), 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) [2023-11-19 07:59:39,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:59:39,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 207 [2023-11-19 07:59:39,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:59:39,930 INFO L124 PetriNetUnfolderBase]: 300/602 cut-off events. [2023-11-19 07:59:39,930 INFO L125 PetriNetUnfolderBase]: For 1957/1957 co-relation queries the response was YES. [2023-11-19 07:59:39,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2457 conditions, 602 events. 300/602 cut-off events. For 1957/1957 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2190 event pairs, 24 based on Foata normal form. 78/680 useless extension candidates. Maximal degree in co-relation 2438. Up to 156 conditions per place. [2023-11-19 07:59:39,939 INFO L140 encePairwiseOnDemand]: 203/207 looper letters, 158 selfloop transitions, 12 changer transitions 0/170 dead transitions. [2023-11-19 07:59:39,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 170 transitions, 1298 flow [2023-11-19 07:59:39,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:59:39,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-19 07:59:39,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1086 transitions. [2023-11-19 07:59:39,944 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43719806763285024 [2023-11-19 07:59:39,945 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1086 transitions. [2023-11-19 07:59:39,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1086 transitions. [2023-11-19 07:59:39,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:59:39,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1086 transitions. [2023-11-19 07:59:39,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 90.5) internal successors, (1086), 12 states have internal predecessors, (1086), 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) [2023-11-19 07:59:39,954 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 207.0) internal successors, (2691), 13 states have internal predecessors, (2691), 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) [2023-11-19 07:59:39,956 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 207.0) internal successors, (2691), 13 states have internal predecessors, (2691), 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) [2023-11-19 07:59:39,956 INFO L175 Difference]: Start difference. First operand has 46 places, 25 transitions, 142 flow. Second operand 12 states and 1086 transitions. [2023-11-19 07:59:39,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 170 transitions, 1298 flow [2023-11-19 07:59:39,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 170 transitions, 1278 flow, removed 9 selfloop flow, removed 1 redundant places. [2023-11-19 07:59:39,966 INFO L231 Difference]: Finished difference. Result has 63 places, 32 transitions, 230 flow [2023-11-19 07:59:39,966 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=230, PETRI_PLACES=63, PETRI_TRANSITIONS=32} [2023-11-19 07:59:39,967 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 45 predicate places. [2023-11-19 07:59:39,967 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 32 transitions, 230 flow [2023-11-19 07:59:39,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 87.46153846153847) internal successors, (1137), 13 states have internal predecessors, (1137), 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) [2023-11-19 07:59:39,968 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:59:39,969 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:39,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:40,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:59:40,191 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-11-19 07:59:40,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:40,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1709339605, now seen corresponding path program 3 times [2023-11-19 07:59:40,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:40,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304779027] [2023-11-19 07:59:40,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:40,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:40,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:40,484 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-19 07:59:40,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:40,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304779027] [2023-11-19 07:59:40,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304779027] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:59:40,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484934199] [2023-11-19 07:59:40,486 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 07:59:40,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:59:40,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:40,488 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:59:40,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:59:40,600 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2023-11-19 07:59:40,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:59:40,602 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 07:59:40,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:40,817 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 10 proven. 55 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-19 07:59:40,817 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:59:41,156 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 10 proven. 55 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-19 07:59:41,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484934199] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:59:41,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:59:41,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 33 [2023-11-19 07:59:41,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813124593] [2023-11-19 07:59:41,157 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:59:41,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-11-19 07:59:41,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:41,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-11-19 07:59:41,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=308, Invalid=748, Unknown=0, NotChecked=0, Total=1056 [2023-11-19 07:59:41,284 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 207 [2023-11-19 07:59:41,288 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 32 transitions, 230 flow. Second operand has 33 states, 33 states have (on average 80.78787878787878) internal successors, (2666), 33 states have internal predecessors, (2666), 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) [2023-11-19 07:59:41,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:59:41,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 207 [2023-11-19 07:59:41,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:59:51,565 INFO L124 PetriNetUnfolderBase]: 599/1200 cut-off events. [2023-11-19 07:59:51,565 INFO L125 PetriNetUnfolderBase]: For 18425/18425 co-relation queries the response was YES. [2023-11-19 07:59:51,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5571 conditions, 1200 events. 599/1200 cut-off events. For 18425/18425 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 4921 event pairs, 6 based on Foata normal form. 283/1483 useless extension candidates. Maximal degree in co-relation 5545. Up to 339 conditions per place. [2023-11-19 07:59:51,587 INFO L140 encePairwiseOnDemand]: 201/207 looper letters, 322 selfloop transitions, 504 changer transitions 0/826 dead transitions. [2023-11-19 07:59:51,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 826 transitions, 8036 flow [2023-11-19 07:59:51,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 253 states. [2023-11-19 07:59:51,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2023-11-19 07:59:51,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 20954 transitions. [2023-11-19 07:59:51,658 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40010692940749654 [2023-11-19 07:59:51,658 INFO L72 ComplementDD]: Start complementDD. Operand 253 states and 20954 transitions. [2023-11-19 07:59:51,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 253 states and 20954 transitions. [2023-11-19 07:59:51,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:59:51,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 253 states and 20954 transitions. [2023-11-19 07:59:51,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 254 states, 253 states have (on average 82.82213438735178) internal successors, (20954), 253 states have internal predecessors, (20954), 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) [2023-11-19 07:59:51,894 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 254 states, 254 states have (on average 207.0) internal successors, (52578), 254 states have internal predecessors, (52578), 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) [2023-11-19 07:59:51,915 INFO L81 ComplementDD]: Finished complementDD. Result has 254 states, 254 states have (on average 207.0) internal successors, (52578), 254 states have internal predecessors, (52578), 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) [2023-11-19 07:59:51,916 INFO L175 Difference]: Start difference. First operand has 63 places, 32 transitions, 230 flow. Second operand 253 states and 20954 transitions. [2023-11-19 07:59:51,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 826 transitions, 8036 flow [2023-11-19 07:59:51,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 826 transitions, 7910 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 07:59:51,963 INFO L231 Difference]: Finished difference. Result has 443 places, 546 transitions, 5714 flow [2023-11-19 07:59:51,964 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=253, PETRI_FLOW=5714, PETRI_PLACES=443, PETRI_TRANSITIONS=546} [2023-11-19 07:59:51,965 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 425 predicate places. [2023-11-19 07:59:51,965 INFO L495 AbstractCegarLoop]: Abstraction has has 443 places, 546 transitions, 5714 flow [2023-11-19 07:59:51,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 80.78787878787878) internal successors, (2666), 33 states have internal predecessors, (2666), 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) [2023-11-19 07:59:51,966 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:59:51,966 INFO L208 CegarLoopForPetriNet]: trace histogram [20, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:51,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:52,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-19 07:59:52,180 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-11-19 07:59:52,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:52,180 INFO L85 PathProgramCache]: Analyzing trace with hash 923968877, now seen corresponding path program 4 times [2023-11-19 07:59:52,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:52,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821607934] [2023-11-19 07:59:52,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:52,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:52,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:52,562 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 20 proven. 121 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-19 07:59:52,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:52,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821607934] [2023-11-19 07:59:52,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821607934] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:59:52,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979122495] [2023-11-19 07:59:52,563 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-19 07:59:52,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:59:52,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:52,565 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:59:52,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:59:52,688 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-19 07:59:52,688 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:59:52,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:59:52,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:52,750 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 20 proven. 121 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-19 07:59:52,750 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:59:52,981 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 20 proven. 121 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-19 07:59:52,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979122495] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:59:52,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:59:52,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 23 [2023-11-19 07:59:52,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990052634] [2023-11-19 07:59:52,983 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:59:52,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-19 07:59:52,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:52,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-19 07:59:52,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2023-11-19 07:59:53,027 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 207 [2023-11-19 07:59:53,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 546 transitions, 5714 flow. Second operand has 23 states, 23 states have (on average 87.30434782608695) internal successors, (2008), 23 states have internal predecessors, (2008), 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) [2023-11-19 07:59:53,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:59:53,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 207 [2023-11-19 07:59:53,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:59:54,791 INFO L124 PetriNetUnfolderBase]: 990/1982 cut-off events. [2023-11-19 07:59:54,791 INFO L125 PetriNetUnfolderBase]: For 464573/464573 co-relation queries the response was YES. [2023-11-19 07:59:54,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17150 conditions, 1982 events. 990/1982 cut-off events. For 464573/464573 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 8641 event pairs, 43 based on Foata normal form. 207/2189 useless extension candidates. Maximal degree in co-relation 16992. Up to 560 conditions per place. [2023-11-19 07:59:54,862 INFO L140 encePairwiseOnDemand]: 203/207 looper letters, 508 selfloop transitions, 442 changer transitions 0/950 dead transitions. [2023-11-19 07:59:54,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 950 transitions, 16588 flow [2023-11-19 07:59:54,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-19 07:59:54,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-11-19 07:59:54,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1989 transitions. [2023-11-19 07:59:54,866 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4367588932806324 [2023-11-19 07:59:54,866 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1989 transitions. [2023-11-19 07:59:54,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1989 transitions. [2023-11-19 07:59:54,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:59:54,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1989 transitions. [2023-11-19 07:59:54,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 90.4090909090909) internal successors, (1989), 22 states have internal predecessors, (1989), 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) [2023-11-19 07:59:54,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 207.0) internal successors, (4761), 23 states have internal predecessors, (4761), 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) [2023-11-19 07:59:54,877 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 207.0) internal successors, (4761), 23 states have internal predecessors, (4761), 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) [2023-11-19 07:59:54,877 INFO L175 Difference]: Start difference. First operand has 443 places, 546 transitions, 5714 flow. Second operand 22 states and 1989 transitions. [2023-11-19 07:59:54,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 950 transitions, 16588 flow [2023-11-19 07:59:55,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 950 transitions, 14446 flow, removed 651 selfloop flow, removed 20 redundant places. [2023-11-19 07:59:55,935 INFO L231 Difference]: Finished difference. Result has 454 places, 715 transitions, 7680 flow [2023-11-19 07:59:55,936 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=4328, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=546, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=273, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=7680, PETRI_PLACES=454, PETRI_TRANSITIONS=715} [2023-11-19 07:59:55,937 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 436 predicate places. [2023-11-19 07:59:55,937 INFO L495 AbstractCegarLoop]: Abstraction has has 454 places, 715 transitions, 7680 flow [2023-11-19 07:59:55,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 87.30434782608695) internal successors, (2008), 23 states have internal predecessors, (2008), 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) [2023-11-19 07:59:55,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:59:55,938 INFO L208 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:55,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:56,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:59:56,152 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-11-19 07:59:56,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:56,152 INFO L85 PathProgramCache]: Analyzing trace with hash -2117679489, now seen corresponding path program 5 times [2023-11-19 07:59:56,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:56,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304947659] [2023-11-19 07:59:56,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:56,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:56,278 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:59:56,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:56,379 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:59:56,379 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:59:56,380 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2023-11-19 07:59:56,382 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2023-11-19 07:59:56,382 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2023-11-19 07:59:56,383 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2023-11-19 07:59:56,383 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2023-11-19 07:59:56,383 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2023-11-19 07:59:56,383 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2023-11-19 07:59:56,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 07:59:56,384 INFO L445 BasicCegarLoop]: Path program histogram: [5, 2, 2, 1, 1, 1] [2023-11-19 07:59:56,389 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:59:56,389 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:59:56,467 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,467 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,468 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre33 could not be translated [2023-11-19 07:59:56,468 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,468 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,473 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,473 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,474 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,474 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,474 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,474 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,475 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,475 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,475 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,475 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,475 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,476 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,476 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,476 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,476 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,476 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,477 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,477 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,477 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,477 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,477 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,478 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,478 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,478 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,478 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,478 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,479 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,479 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,479 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,479 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,479 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,480 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,480 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,480 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,480 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,480 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,481 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,481 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,481 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,481 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,481 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,482 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,482 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,482 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,482 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,482 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,483 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,483 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,483 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,483 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,484 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,484 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,484 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,484 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,484 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,485 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,485 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,485 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,486 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,486 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,486 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,486 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,487 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,492 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,492 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,492 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,493 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,493 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,494 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,494 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,494 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,494 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,495 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,495 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,495 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,495 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,495 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,496 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,496 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,496 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,496 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,497 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,497 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,497 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,498 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,498 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,498 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,498 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,498 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,499 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,499 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,499 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,499 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,499 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,500 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,500 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,500 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,500 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,500 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,501 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,501 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,502 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,502 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,502 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,502 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,503 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,503 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,503 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,503 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,503 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,504 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,504 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,506 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,506 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,507 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,507 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,508 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,508 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,508 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,508 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,511 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,512 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,512 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,513 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,513 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,513 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,514 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,514 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,514 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,514 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,514 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,515 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,515 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,515 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,516 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,516 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,516 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,516 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,516 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,517 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,517 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,517 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,517 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,518 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,518 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,519 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,519 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,519 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,519 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,522 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,523 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,523 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,523 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,524 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,524 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,524 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,524 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,525 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,525 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,525 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,525 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,525 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,526 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,528 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,529 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,529 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,529 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,529 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,530 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,530 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,530 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,530 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,530 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,531 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,531 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,531 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,531 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,531 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,532 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,532 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,532 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,532 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,532 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,533 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,533 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,533 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,533 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,533 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,534 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,534 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,534 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,534 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,534 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,534 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,535 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,535 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,535 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,535 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,535 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,536 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,536 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,536 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,536 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,536 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,537 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,537 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,537 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,537 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,537 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,538 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,538 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,538 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,538 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,538 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,539 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,539 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-19 07:59:56,539 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,539 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,540 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,540 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,540 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,540 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-19 07:59:56,540 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,541 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock [2023-11-19 07:59:56,541 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind [2023-11-19 07:59:56,541 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner [2023-11-19 07:59:56,541 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers [2023-11-19 07:59:56,541 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count [2023-11-19 07:59:56,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:59:56 BasicIcfg [2023-11-19 07:59:56,561 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:59:56,561 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:59:56,562 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:59:56,562 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:59:56,562 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:33" (3/4) ... [2023-11-19 07:59:56,565 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:59:56,566 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:59:56,567 INFO L158 Benchmark]: Toolchain (without parser) took 25001.29ms. Allocated memory was 136.3MB in the beginning and 318.8MB in the end (delta: 182.5MB). Free memory was 95.1MB in the beginning and 126.1MB in the end (delta: -31.1MB). Peak memory consumption was 153.7MB. Max. memory is 16.1GB. [2023-11-19 07:59:56,567 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 136.3MB. Free memory is still 111.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:59:56,567 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1035.94ms. Allocated memory is still 136.3MB. Free memory was 94.8MB in the beginning and 102.1MB in the end (delta: -7.3MB). Peak memory consumption was 45.0MB. Max. memory is 16.1GB. [2023-11-19 07:59:56,568 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.49ms. Allocated memory was 136.3MB in the beginning and 182.5MB in the end (delta: 46.1MB). Free memory was 102.0MB in the beginning and 151.2MB in the end (delta: -49.2MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2023-11-19 07:59:56,568 INFO L158 Benchmark]: Boogie Preprocessor took 32.36ms. Allocated memory is still 182.5MB. Free memory was 151.2MB in the beginning and 150.3MB in the end (delta: 955.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:59:56,568 INFO L158 Benchmark]: RCFGBuilder took 467.78ms. Allocated memory is still 182.5MB. Free memory was 150.3MB in the beginning and 135.4MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 07:59:56,569 INFO L158 Benchmark]: TraceAbstraction took 23351.61ms. Allocated memory was 182.5MB in the beginning and 318.8MB in the end (delta: 136.3MB). Free memory was 134.4MB in the beginning and 127.2MB in the end (delta: 7.3MB). Peak memory consumption was 142.4MB. Max. memory is 16.1GB. [2023-11-19 07:59:56,569 INFO L158 Benchmark]: Witness Printer took 4.43ms. Allocated memory is still 318.8MB. Free memory was 127.2MB in the beginning and 126.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:59:56,571 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 136.3MB. Free memory is still 111.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1035.94ms. Allocated memory is still 136.3MB. Free memory was 94.8MB in the beginning and 102.1MB in the end (delta: -7.3MB). Peak memory consumption was 45.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 99.49ms. Allocated memory was 136.3MB in the beginning and 182.5MB in the end (delta: 46.1MB). Free memory was 102.0MB in the beginning and 151.2MB in the end (delta: -49.2MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.36ms. Allocated memory is still 182.5MB. Free memory was 151.2MB in the beginning and 150.3MB in the end (delta: 955.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 467.78ms. Allocated memory is still 182.5MB. Free memory was 150.3MB in the beginning and 135.4MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 23351.61ms. Allocated memory was 182.5MB in the beginning and 318.8MB in the end (delta: 136.3MB). Free memory was 134.4MB in the beginning and 127.2MB in the end (delta: 7.3MB). Peak memory consumption was 142.4MB. Max. memory is 16.1GB. * Witness Printer took 4.43ms. Allocated memory is still 318.8MB. Free memory was 127.2MB in the beginning and 126.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre33 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mymutex~0.__data.__count - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 91 PlacesBefore, 18 PlacesAfterwards, 95 TransitionsBefore, 16 TransitionsAfterwards, 768 CoEnabledTransitionPairs, 6 FixpointIterations, 57 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 9 TrivialYvCompositions, 5 ConcurrentYvCompositions, 6 ChoiceCompositions, 106 TotalNumberOfCompositions, 727 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 670, independent: 655, independent conditional: 0, independent unconditional: 655, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 413, independent: 406, independent conditional: 0, independent unconditional: 406, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 670, independent: 249, independent conditional: 0, independent unconditional: 249, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 413, unknown conditional: 0, unknown unconditional: 413] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 12]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 12. Possible FailurePath: [L1320] 0 int myglobal; [L1321] 0 pthread_mutex_t mymutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1340] 0 pthread_t mythread; [L1341] 0 int i; [L1342] FCALL, FORK 0 pthread_create( &mythread, ((void *)0), thread_function_datarace, ((void *)0)) VAL [arg={0:0}, myglobal=0, mythread={3:0}] [L1342] COND FALSE 0 !(pthread_create( &mythread, ((void *)0), thread_function_datarace, ((void *)0))) [L1352] 0 i=0 VAL [arg={0:0}, i=0, myglobal=0, mythread={3:0}] [L1352] COND TRUE 0 i<20 [L1355] 0 myglobal=myglobal+1 [L1352] 0 i++ VAL [arg={0:0}, i=1, myglobal=1, mythread={3:0}] [L1352] COND TRUE 0 i<20 [L1355] 0 myglobal=myglobal+1 [L1352] 0 i++ VAL [arg={0:0}, i=2, myglobal=2, mythread={3:0}] [L1352] COND TRUE 0 i<20 [L1355] 0 myglobal=myglobal+1 [L1352] 0 i++ VAL [arg={0:0}, i=3, myglobal=3, mythread={3:0}] [L1352] COND TRUE 0 i<20 [L1355] 0 myglobal=myglobal+1 [L1352] 0 i++ VAL [arg={0:0}, i=4, myglobal=4, mythread={3:0}] [L1352] COND TRUE 0 i<20 [L1355] 0 myglobal=myglobal+1 [L1352] 0 i++ VAL [arg={0:0}, i=5, myglobal=5, mythread={3:0}] [L1352] COND TRUE 0 i<20 [L1355] 0 myglobal=myglobal+1 [L1352] 0 i++ VAL [arg={0:0}, i=6, myglobal=6, mythread={3:0}] [L1352] COND TRUE 0 i<20 [L1355] 0 myglobal=myglobal+1 [L1352] 0 i++ VAL [arg={0:0}, i=7, myglobal=7, mythread={3:0}] [L1352] COND TRUE 0 i<20 [L1355] 0 myglobal=myglobal+1 [L1352] 0 i++ VAL [arg={0:0}, i=8, myglobal=8, mythread={3:0}] [L1352] COND TRUE 0 i<20 [L1355] 0 myglobal=myglobal+1 [L1352] 0 i++ VAL [arg={0:0}, i=9, myglobal=9, mythread={3:0}] [L1352] COND TRUE 0 i<20 [L1355] 0 myglobal=myglobal+1 [L1352] 0 i++ VAL [arg={0:0}, i=10, myglobal=10, mythread={3:0}] [L1352] COND TRUE 0 i<20 [L1355] 0 myglobal=myglobal+1 [L1352] 0 i++ VAL [arg={0:0}, i=11, myglobal=11, mythread={3:0}] [L1352] COND TRUE 0 i<20 [L1355] 0 myglobal=myglobal+1 [L1352] 0 i++ VAL [arg={0:0}, i=12, myglobal=12, mythread={3:0}] [L1352] COND TRUE 0 i<20 [L1355] 0 myglobal=myglobal+1 [L1352] 0 i++ VAL [arg={0:0}, i=13, myglobal=13, mythread={3:0}] [L1352] COND TRUE 0 i<20 [L1355] 0 myglobal=myglobal+1 [L1352] 0 i++ VAL [arg={0:0}, i=14, myglobal=14, mythread={3:0}] [L1352] COND TRUE 0 i<20 [L1355] 0 myglobal=myglobal+1 [L1352] 0 i++ VAL [arg={0:0}, i=15, myglobal=15, mythread={3:0}] [L1352] COND TRUE 0 i<20 [L1355] 0 myglobal=myglobal+1 [L1352] 0 i++ VAL [arg={0:0}, i=16, myglobal=16, mythread={3:0}] [L1352] COND TRUE 0 i<20 [L1355] 0 myglobal=myglobal+1 [L1352] 0 i++ VAL [arg={0:0}, i=17, myglobal=17, mythread={3:0}] [L1352] COND TRUE 0 i<20 [L1355] 0 myglobal=myglobal+1 [L1352] 0 i++ VAL [arg={0:0}, i=18, myglobal=18, mythread={3:0}] [L1352] COND TRUE 0 i<20 [L1355] 0 myglobal=myglobal+1 [L1352] 0 i++ VAL [arg={0:0}, i=19, myglobal=19, mythread={3:0}] [L1352] COND TRUE 0 i<20 [L1355] 0 myglobal=myglobal+1 [L1352] 0 i++ VAL [arg={0:0}, i=20, myglobal=20, mythread={3:0}] [L1324] 1 int i,j; [L1325] 1 i=0 VAL [arg={0:0}, arg={0:0}, i=0, myglobal=20] [L1325] COND TRUE 1 i<20 [L1328] 1 j=myglobal [L1330] 1 j=j+1 [L1333] 1 myglobal=j [L1325] 1 i++ VAL [arg={0:0}, arg={0:0}, i=1, j=21, myglobal=21] [L1325] COND TRUE 1 i<20 [L1328] 1 j=myglobal [L1330] 1 j=j+1 [L1333] 1 myglobal=j [L1325] 1 i++ VAL [arg={0:0}, arg={0:0}, i=2, j=22, myglobal=22] [L1325] COND TRUE 1 i<20 [L1328] 1 j=myglobal [L1330] 1 j=j+1 [L1333] 1 myglobal=j [L1325] 1 i++ VAL [arg={0:0}, arg={0:0}, i=3, j=23, myglobal=23] [L1325] COND TRUE 1 i<20 [L1328] 1 j=myglobal [L1330] 1 j=j+1 [L1333] 1 myglobal=j [L1325] 1 i++ VAL [arg={0:0}, arg={0:0}, i=4, j=24, myglobal=24] [L1325] COND TRUE 1 i<20 [L1328] 1 j=myglobal [L1330] 1 j=j+1 [L1333] 1 myglobal=j [L1325] 1 i++ VAL [arg={0:0}, arg={0:0}, i=5, j=25, myglobal=25] [L1325] COND TRUE 1 i<20 [L1328] 1 j=myglobal [L1330] 1 j=j+1 [L1333] 1 myglobal=j [L1325] 1 i++ VAL [arg={0:0}, arg={0:0}, i=6, j=26, myglobal=26] [L1325] COND TRUE 1 i<20 [L1328] 1 j=myglobal [L1330] 1 j=j+1 [L1333] 1 myglobal=j [L1325] 1 i++ VAL [arg={0:0}, arg={0:0}, i=7, j=27, myglobal=27] [L1325] COND TRUE 1 i<20 [L1328] 1 j=myglobal [L1330] 1 j=j+1 [L1333] 1 myglobal=j [L1325] 1 i++ VAL [arg={0:0}, arg={0:0}, i=8, j=28, myglobal=28] [L1325] COND TRUE 1 i<20 [L1328] 1 j=myglobal [L1330] 1 j=j+1 [L1333] 1 myglobal=j [L1325] 1 i++ VAL [arg={0:0}, arg={0:0}, i=9, j=29, myglobal=29] [L1325] COND TRUE 1 i<20 [L1328] 1 j=myglobal [L1330] 1 j=j+1 [L1333] 1 myglobal=j [L1325] 1 i++ VAL [arg={0:0}, arg={0:0}, i=10, j=30, myglobal=30] [L1325] COND TRUE 1 i<20 [L1328] 1 j=myglobal [L1330] 1 j=j+1 [L1333] 1 myglobal=j [L1325] 1 i++ VAL [arg={0:0}, arg={0:0}, i=11, j=31, myglobal=31] [L1325] COND TRUE 1 i<20 [L1328] 1 j=myglobal [L1330] 1 j=j+1 [L1333] 1 myglobal=j [L1325] 1 i++ VAL [arg={0:0}, arg={0:0}, i=12, j=32, myglobal=32] [L1325] COND TRUE 1 i<20 [L1328] 1 j=myglobal [L1330] 1 j=j+1 [L1333] 1 myglobal=j [L1325] 1 i++ VAL [arg={0:0}, arg={0:0}, i=13, j=33, myglobal=33] [L1325] COND TRUE 1 i<20 [L1328] 1 j=myglobal [L1330] 1 j=j+1 [L1333] 1 myglobal=j [L1325] 1 i++ VAL [arg={0:0}, arg={0:0}, i=14, j=34, myglobal=34] [L1325] COND TRUE 1 i<20 [L1328] 1 j=myglobal [L1330] 1 j=j+1 [L1333] 1 myglobal=j [L1325] 1 i++ VAL [arg={0:0}, arg={0:0}, i=15, j=35, myglobal=35] [L1325] COND TRUE 1 i<20 [L1328] 1 j=myglobal [L1330] 1 j=j+1 [L1333] 1 myglobal=j [L1325] 1 i++ VAL [arg={0:0}, arg={0:0}, i=16, j=36, myglobal=36] [L1325] COND TRUE 1 i<20 [L1328] 1 j=myglobal [L1330] 1 j=j+1 [L1333] 1 myglobal=j [L1325] 1 i++ VAL [arg={0:0}, arg={0:0}, i=17, j=37, myglobal=37] [L1325] COND TRUE 1 i<20 [L1328] 1 j=myglobal [L1330] 1 j=j+1 [L1333] 1 myglobal=j [L1325] 1 i++ VAL [arg={0:0}, arg={0:0}, i=18, j=38, myglobal=38] [L1325] COND TRUE 1 i<20 [L1328] 1 j=myglobal [L1330] 1 j=j+1 [L1333] 1 myglobal=j [L1325] 1 i++ VAL [arg={0:0}, arg={0:0}, i=19, j=39, myglobal=39] [L1325] COND TRUE 1 i<20 [L1328] 1 j=myglobal [L1330] 1 j=j+1 [L1333] 1 myglobal=j [L1325] 1 i++ VAL [arg={0:0}, arg={0:0}, i=20, j=40, myglobal=40] [L1352] COND FALSE 0 !(i<20) [L1358] 0 \read(mythread) VAL [arg={0:0}, arg={0:0}, i=20, i=20, j=40, myglobal=40, mythread={3:0}] [L1325] COND FALSE 1 !(i<20) [L1336] 1 return ((void *)0); [L1358] FCALL, JOIN 1 pthread_join ( mythread, ((void *)0) ) VAL [\result={0:0}, arg={0:0}, arg={0:0}, i=20, i=20, j=40, myglobal=40, mythread={3:0}] [L1358] COND FALSE 0 !(pthread_join ( mythread, ((void *)0) )) [L1362] CALL 0 __VERIFIER_assert(myglobal != 40) [L13] COND TRUE 0 !(cond) [L13] CALL 0 reach_error() [L12] COND FALSE 0 !(0) [L12] 0 __assert_fail ("0", "pthread-demo-datarace-2.c", 25, __extension__ __PRETTY_FUNCTION__) VAL [\result={0:0}, arg={0:0}, arg={0:0}, i=20, j=40, myglobal=40] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1338]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1342]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 110 locations, 7 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: 23.0s, OverallIterations: 12, TraceHistogramMax: 20, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 15.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2110 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2011 mSDsluCounter, 107 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 92 mSDsCounter, 61 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1188 IncrementalHoareTripleChecker+Invalid, 1249 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 61 mSolverCounterUnsat, 15 mSDtfsCounter, 1188 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 567 GetRequests, 253 SyntacticMatches, 6 SemanticMatches, 308 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24759 ImplicationChecksByTransitivity, 10.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7680occurred in iteration=11, InterpolantAutomatonStates: 325, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 407 NumberOfCodeBlocks, 399 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 463 ConstructedInterpolants, 0 QuantifiedInterpolants, 1123 SizeOfPredicates, 0 NumberOfNonLiveVariables, 917 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 23 InterpolantComputations, 5 PerfectInterpolantSequences, 1335/1992 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 07:59:56,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:59:59,242 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:59:59,377 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-19 07:59:59,385 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:59:59,386 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:59:59,425 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:59:59,426 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:59:59,426 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:59:59,427 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:59:59,428 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:59:59,429 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:59:59,429 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:59:59,430 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:59:59,430 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:59:59,431 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:59:59,431 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:59:59,432 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:59:59,432 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:59:59,433 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:59:59,434 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:59:59,434 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:59:59,435 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:59:59,435 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:59:59,436 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:59:59,436 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:59:59,436 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:59:59,437 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:59:59,437 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:59:59,438 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:59:59,438 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:59:59,439 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:59:59,440 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:59:59,440 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:59:59,441 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:59:59,441 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:59:59,441 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:59:59,441 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:59:59,442 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:59:59,442 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:59:59,443 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:59:59,443 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:59:59,444 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_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 [2023-11-19 07:59:59,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:59:59,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:59:59,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:59:59,853 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:59:59,854 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:59:59,855 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2023-11-19 08:00:03,267 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:00:03,726 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:00:03,727 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2023-11-19 08:00:03,757 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/data/ced931fca/e420667977844be1921586907c748cb9/FLAGd0cb506c5 [2023-11-19 08:00:03,776 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/data/ced931fca/e420667977844be1921586907c748cb9 [2023-11-19 08:00:03,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:00:03,784 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:00:03,789 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:00:03,789 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:00:03,794 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:00:03,795 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:03" (1/1) ... [2023-11-19 08:00:03,796 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b43d622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:03, skipping insertion in model container [2023-11-19 08:00:03,797 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:03" (1/1) ... [2023-11-19 08:00:03,880 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:00:04,643 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:00:04,659 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:00:04,724 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:00:04,813 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:00:04,813 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:00:04,821 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:00:04,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:04 WrapperNode [2023-11-19 08:00:04,822 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:00:04,823 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:00:04,823 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:00:04,823 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:00:04,831 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:04" (1/1) ... [2023-11-19 08:00:04,856 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:04" (1/1) ... [2023-11-19 08:00:04,884 INFO L138 Inliner]: procedures = 368, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2023-11-19 08:00:04,885 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:00:04,886 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:00:04,886 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:00:04,886 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:00:04,895 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:04" (1/1) ... [2023-11-19 08:00:04,896 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:04" (1/1) ... [2023-11-19 08:00:04,908 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:04" (1/1) ... [2023-11-19 08:00:04,908 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:04" (1/1) ... [2023-11-19 08:00:04,919 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:04" (1/1) ... [2023-11-19 08:00:04,937 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:04" (1/1) ... [2023-11-19 08:00:04,942 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:04" (1/1) ... [2023-11-19 08:00:04,951 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:04" (1/1) ... [2023-11-19 08:00:04,955 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:00:04,956 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:00:04,956 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:00:04,957 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:00:04,957 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:04" (1/1) ... [2023-11-19 08:00:04,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:00:04,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:00:04,999 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:00:05,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:00:05,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 08:00:05,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 08:00:05,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:00:05,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:00:05,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 08:00:05,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 08:00:05,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 08:00:05,037 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2023-11-19 08:00:05,038 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2023-11-19 08:00:05,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:00:05,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:00:05,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:00:05,040 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 08:00:05,210 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:00:05,213 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:00:05,469 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:00:05,480 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:00:05,480 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 08:00:05,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:05 BoogieIcfgContainer [2023-11-19 08:00:05,485 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:00:05,488 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:00:05,489 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:00:05,492 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:00:05,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:00:03" (1/3) ... [2023-11-19 08:00:05,494 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46b3efee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:00:05, skipping insertion in model container [2023-11-19 08:00:05,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:04" (2/3) ... [2023-11-19 08:00:05,494 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46b3efee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:00:05, skipping insertion in model container [2023-11-19 08:00:05,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:05" (3/3) ... [2023-11-19 08:00:05,497 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-3.i [2023-11-19 08:00:05,516 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:00:05,517 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-19 08:00:05,517 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 08:00:05,616 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-19 08:00:05,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 102 transitions, 211 flow [2023-11-19 08:00:05,752 INFO L124 PetriNetUnfolderBase]: 8/101 cut-off events. [2023-11-19 08:00:05,752 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 08:00:05,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 101 events. 8/101 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 101 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2023-11-19 08:00:05,778 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 102 transitions, 211 flow [2023-11-19 08:00:05,783 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 96 transitions, 198 flow [2023-11-19 08:00:05,787 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 08:00:05,803 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 96 transitions, 198 flow [2023-11-19 08:00:05,807 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 96 transitions, 198 flow [2023-11-19 08:00:05,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 96 transitions, 198 flow [2023-11-19 08:00:05,844 INFO L124 PetriNetUnfolderBase]: 8/96 cut-off events. [2023-11-19 08:00:05,844 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 08:00:05,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 96 events. 8/96 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 100 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2023-11-19 08:00:05,848 INFO L119 LiptonReduction]: Number of co-enabled transitions 768 [2023-11-19 08:00:10,063 INFO L134 LiptonReduction]: Checked pairs total: 728 [2023-11-19 08:00:10,063 INFO L136 LiptonReduction]: Total number of compositions: 107 [2023-11-19 08:00:10,078 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:00:10,085 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@62bf169a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:00:10,085 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-19 08:00:10,086 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 08:00:10,087 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 08:00:10,087 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:00:10,087 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:10,088 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 08:00:10,088 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-11-19 08:00:10,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:10,093 INFO L85 PathProgramCache]: Analyzing trace with hash 392, now seen corresponding path program 1 times [2023-11-19 08:00:10,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:00:10,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [114212459] [2023-11-19 08:00:10,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:10,106 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:00:10,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:00:10,110 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 08:00:10,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 08:00:10,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:10,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 08:00:10,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:00:10,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:10,272 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:00:10,272 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:00:10,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [114212459] [2023-11-19 08:00:10,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [114212459] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:10,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:10,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 08:00:10,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94642060] [2023-11-19 08:00:10,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:10,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:00:10,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:00:10,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:00:10,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:00:10,320 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 209 [2023-11-19 08:00:10,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 16 transitions, 38 flow. Second operand has 2 states, 2 states have (on average 91.5) internal successors, (183), 2 states have internal predecessors, (183), 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) [2023-11-19 08:00:10,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:10,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 209 [2023-11-19 08:00:10,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:10,376 INFO L124 PetriNetUnfolderBase]: 21/44 cut-off events. [2023-11-19 08:00:10,377 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 08:00:10,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 44 events. 21/44 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 96 event pairs, 12 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 80. Up to 45 conditions per place. [2023-11-19 08:00:10,380 INFO L140 encePairwiseOnDemand]: 206/209 looper letters, 13 selfloop transitions, 0 changer transitions 0/13 dead transitions. [2023-11-19 08:00:10,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 13 transitions, 58 flow [2023-11-19 08:00:10,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:00:10,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 08:00:10,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 198 transitions. [2023-11-19 08:00:10,399 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47368421052631576 [2023-11-19 08:00:10,400 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 198 transitions. [2023-11-19 08:00:10,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 198 transitions. [2023-11-19 08:00:10,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:10,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 198 transitions. [2023-11-19 08:00:10,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 99.0) internal successors, (198), 2 states have internal predecessors, (198), 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) [2023-11-19 08:00:10,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 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) [2023-11-19 08:00:10,421 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 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) [2023-11-19 08:00:10,423 INFO L175 Difference]: Start difference. First operand has 18 places, 16 transitions, 38 flow. Second operand 2 states and 198 transitions. [2023-11-19 08:00:10,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 13 transitions, 58 flow [2023-11-19 08:00:10,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 13 transitions, 54 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 08:00:10,428 INFO L231 Difference]: Finished difference. Result has 14 places, 13 transitions, 28 flow [2023-11-19 08:00:10,430 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=28, PETRI_PLACES=14, PETRI_TRANSITIONS=13} [2023-11-19 08:00:10,435 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, -4 predicate places. [2023-11-19 08:00:10,435 INFO L495 AbstractCegarLoop]: Abstraction has has 14 places, 13 transitions, 28 flow [2023-11-19 08:00:10,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 91.5) internal successors, (183), 2 states have internal predecessors, (183), 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) [2023-11-19 08:00:10,436 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:10,436 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-19 08:00:10,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-19 08:00:10,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:00:10,637 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-11-19 08:00:10,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:10,638 INFO L85 PathProgramCache]: Analyzing trace with hash 11995932, now seen corresponding path program 1 times [2023-11-19 08:00:10,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:00:10,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1988659815] [2023-11-19 08:00:10,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:10,639 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:00:10,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:00:10,641 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 08:00:10,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 08:00:10,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:10,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:00:10,722 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:00:10,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-19 08:00:10,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:10,828 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:00:10,828 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:00:10,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1988659815] [2023-11-19 08:00:10,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1988659815] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:10,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:10,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 08:00:10,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484977640] [2023-11-19 08:00:10,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:10,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:00:10,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:00:10,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:00:10,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:00:10,881 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 209 [2023-11-19 08:00:10,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 13 transitions, 28 flow. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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) [2023-11-19 08:00:10,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:10,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 209 [2023-11-19 08:00:10,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:10,923 INFO L124 PetriNetUnfolderBase]: 17/36 cut-off events. [2023-11-19 08:00:10,924 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:00:10,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 36 events. 17/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 64 event pairs, 9 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 73. Up to 36 conditions per place. [2023-11-19 08:00:10,925 INFO L140 encePairwiseOnDemand]: 207/209 looper letters, 11 selfloop transitions, 1 changer transitions 0/12 dead transitions. [2023-11-19 08:00:10,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 12 transitions, 50 flow [2023-11-19 08:00:10,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:00:10,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:00:10,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 268 transitions. [2023-11-19 08:00:10,929 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4274322169059011 [2023-11-19 08:00:10,929 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 268 transitions. [2023-11-19 08:00:10,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 268 transitions. [2023-11-19 08:00:10,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:10,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 268 transitions. [2023-11-19 08:00:10,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2023-11-19 08:00:10,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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) [2023-11-19 08:00:10,934 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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) [2023-11-19 08:00:10,934 INFO L175 Difference]: Start difference. First operand has 14 places, 13 transitions, 28 flow. Second operand 3 states and 268 transitions. [2023-11-19 08:00:10,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 12 transitions, 50 flow [2023-11-19 08:00:10,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 12 transitions, 50 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:00:10,936 INFO L231 Difference]: Finished difference. Result has 15 places, 12 transitions, 28 flow [2023-11-19 08:00:10,936 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=28, PETRI_PLACES=15, PETRI_TRANSITIONS=12} [2023-11-19 08:00:10,937 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, -3 predicate places. [2023-11-19 08:00:10,937 INFO L495 AbstractCegarLoop]: Abstraction has has 15 places, 12 transitions, 28 flow [2023-11-19 08:00:10,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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) [2023-11-19 08:00:10,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:10,938 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-19 08:00:10,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-19 08:00:11,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:00:11,141 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-11-19 08:00:11,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:11,141 INFO L85 PathProgramCache]: Analyzing trace with hash 11995931, now seen corresponding path program 1 times [2023-11-19 08:00:11,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:00:11,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [840406510] [2023-11-19 08:00:11,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:11,142 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:00:11,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:00:11,149 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 08:00:11,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 08:00:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:11,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:00:11,216 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:00:11,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:11,222 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:00:11,223 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:00:11,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [840406510] [2023-11-19 08:00:11,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [840406510] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:11,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:11,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:00:11,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290725306] [2023-11-19 08:00:11,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:11,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:00:11,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:00:11,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:00:11,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:00:11,239 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 209 [2023-11-19 08:00:11,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 12 transitions, 28 flow. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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) [2023-11-19 08:00:11,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:11,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 209 [2023-11-19 08:00:11,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:11,306 INFO L124 PetriNetUnfolderBase]: 21/44 cut-off events. [2023-11-19 08:00:11,307 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:00:11,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 44 events. 21/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 93 event pairs, 9 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 90. Up to 37 conditions per place. [2023-11-19 08:00:11,308 INFO L140 encePairwiseOnDemand]: 205/209 looper letters, 15 selfloop transitions, 2 changer transitions 0/17 dead transitions. [2023-11-19 08:00:11,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 17 transitions, 72 flow [2023-11-19 08:00:11,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:00:11,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:00:11,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 274 transitions. [2023-11-19 08:00:11,315 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4370015948963317 [2023-11-19 08:00:11,315 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 274 transitions. [2023-11-19 08:00:11,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 274 transitions. [2023-11-19 08:00:11,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:11,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 274 transitions. [2023-11-19 08:00:11,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2023-11-19 08:00:11,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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) [2023-11-19 08:00:11,323 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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) [2023-11-19 08:00:11,324 INFO L175 Difference]: Start difference. First operand has 15 places, 12 transitions, 28 flow. Second operand 3 states and 274 transitions. [2023-11-19 08:00:11,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 17 transitions, 72 flow [2023-11-19 08:00:11,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 17 transitions, 71 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:00:11,325 INFO L231 Difference]: Finished difference. Result has 17 places, 13 transitions, 41 flow [2023-11-19 08:00:11,326 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=27, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=41, PETRI_PLACES=17, PETRI_TRANSITIONS=13} [2023-11-19 08:00:11,327 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, -1 predicate places. [2023-11-19 08:00:11,328 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 13 transitions, 41 flow [2023-11-19 08:00:11,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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) [2023-11-19 08:00:11,328 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:11,328 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 08:00:11,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-19 08:00:11,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:00:11,531 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-11-19 08:00:11,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:11,532 INFO L85 PathProgramCache]: Analyzing trace with hash 371874590, now seen corresponding path program 1 times [2023-11-19 08:00:11,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:00:11,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [613600387] [2023-11-19 08:00:11,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:11,533 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:00:11,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:00:11,534 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 08:00:11,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-19 08:00:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:11,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:00:11,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:00:11,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:11,644 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:00:11,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:11,671 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:00:11,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [613600387] [2023-11-19 08:00:11,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [613600387] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:00:11,672 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 08:00:11,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-19 08:00:11,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129901700] [2023-11-19 08:00:11,673 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 08:00:11,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:00:11,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:00:11,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:00:11,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:00:11,703 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 209 [2023-11-19 08:00:11,704 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 13 transitions, 41 flow. Second operand has 6 states, 6 states have (on average 85.33333333333333) internal successors, (512), 6 states have internal predecessors, (512), 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) [2023-11-19 08:00:11,704 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:11,704 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 209 [2023-11-19 08:00:11,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:11,880 INFO L124 PetriNetUnfolderBase]: 33/68 cut-off events. [2023-11-19 08:00:11,881 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-11-19 08:00:11,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 68 events. 33/68 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 137 event pairs, 9 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 174. Up to 37 conditions per place. [2023-11-19 08:00:11,883 INFO L140 encePairwiseOnDemand]: 205/209 looper letters, 27 selfloop transitions, 5 changer transitions 0/32 dead transitions. [2023-11-19 08:00:11,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 32 transitions, 149 flow [2023-11-19 08:00:11,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:00:11,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 08:00:11,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 542 transitions. [2023-11-19 08:00:11,889 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43221690590111644 [2023-11-19 08:00:11,889 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 542 transitions. [2023-11-19 08:00:11,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 542 transitions. [2023-11-19 08:00:11,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:11,893 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 542 transitions. [2023-11-19 08:00:11,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 90.33333333333333) internal successors, (542), 6 states have internal predecessors, (542), 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) [2023-11-19 08:00:11,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 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) [2023-11-19 08:00:11,901 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 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) [2023-11-19 08:00:11,901 INFO L175 Difference]: Start difference. First operand has 17 places, 13 transitions, 41 flow. Second operand 6 states and 542 transitions. [2023-11-19 08:00:11,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 32 transitions, 149 flow [2023-11-19 08:00:11,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 32 transitions, 145 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-19 08:00:11,904 INFO L231 Difference]: Finished difference. Result has 24 places, 16 transitions, 79 flow [2023-11-19 08:00:11,905 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=79, PETRI_PLACES=24, PETRI_TRANSITIONS=16} [2023-11-19 08:00:11,916 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 6 predicate places. [2023-11-19 08:00:11,916 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 16 transitions, 79 flow [2023-11-19 08:00:11,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.33333333333333) internal successors, (512), 6 states have internal predecessors, (512), 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) [2023-11-19 08:00:11,917 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:11,917 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1] [2023-11-19 08:00:11,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-19 08:00:12,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:00:12,120 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-11-19 08:00:12,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:12,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1795978203, now seen corresponding path program 2 times [2023-11-19 08:00:12,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:00:12,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828498016] [2023-11-19 08:00:12,121 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 08:00:12,121 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:00:12,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:00:12,123 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 08:00:12,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-19 08:00:12,196 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-19 08:00:12,196 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 08:00:12,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:00:12,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:00:12,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-19 08:00:12,227 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 08:00:12,228 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:00:12,228 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:00:12,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828498016] [2023-11-19 08:00:12,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [828498016] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:12,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:12,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 08:00:12,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688353307] [2023-11-19 08:00:12,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:12,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:00:12,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:00:12,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:00:12,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:00:12,274 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 209 [2023-11-19 08:00:12,275 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 16 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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) [2023-11-19 08:00:12,275 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:12,275 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 209 [2023-11-19 08:00:12,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:12,315 INFO L124 PetriNetUnfolderBase]: 29/60 cut-off events. [2023-11-19 08:00:12,316 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2023-11-19 08:00:12,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 60 events. 29/60 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 103 event pairs, 18 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 194. Up to 60 conditions per place. [2023-11-19 08:00:12,317 INFO L140 encePairwiseOnDemand]: 207/209 looper letters, 14 selfloop transitions, 1 changer transitions 0/15 dead transitions. [2023-11-19 08:00:12,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 15 transitions, 99 flow [2023-11-19 08:00:12,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:00:12,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:00:12,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 258 transitions. [2023-11-19 08:00:12,319 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41148325358851673 [2023-11-19 08:00:12,320 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 258 transitions. [2023-11-19 08:00:12,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 258 transitions. [2023-11-19 08:00:12,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:12,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 258 transitions. [2023-11-19 08:00:12,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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) [2023-11-19 08:00:12,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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) [2023-11-19 08:00:12,324 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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) [2023-11-19 08:00:12,324 INFO L175 Difference]: Start difference. First operand has 24 places, 16 transitions, 79 flow. Second operand 3 states and 258 transitions. [2023-11-19 08:00:12,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 15 transitions, 99 flow [2023-11-19 08:00:12,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 15 transitions, 85 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-11-19 08:00:12,327 INFO L231 Difference]: Finished difference. Result has 24 places, 15 transitions, 57 flow [2023-11-19 08:00:12,328 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=57, PETRI_PLACES=24, PETRI_TRANSITIONS=15} [2023-11-19 08:00:12,329 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 6 predicate places. [2023-11-19 08:00:12,329 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 15 transitions, 57 flow [2023-11-19 08:00:12,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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) [2023-11-19 08:00:12,330 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:12,330 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:12,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-19 08:00:12,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:00:12,533 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-11-19 08:00:12,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:12,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1370978398, now seen corresponding path program 1 times [2023-11-19 08:00:12,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:00:12,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1663593517] [2023-11-19 08:00:12,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:12,534 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:00:12,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:00:12,535 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 08:00:12,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-19 08:00:12,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:12,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:00:12,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:00:12,641 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 08:00:12,641 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:00:12,642 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:00:12,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1663593517] [2023-11-19 08:00:12,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1663593517] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:12,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:12,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:00:12,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134959204] [2023-11-19 08:00:12,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:12,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:00:12,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:00:12,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:00:12,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:00:12,658 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 209 [2023-11-19 08:00:12,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 15 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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) [2023-11-19 08:00:12,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:12,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 209 [2023-11-19 08:00:12,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:12,729 INFO L124 PetriNetUnfolderBase]: 43/88 cut-off events. [2023-11-19 08:00:12,729 INFO L125 PetriNetUnfolderBase]: For 82/82 co-relation queries the response was YES. [2023-11-19 08:00:12,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 88 events. 43/88 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 213 event pairs, 18 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 245. Up to 61 conditions per place. [2023-11-19 08:00:12,732 INFO L140 encePairwiseOnDemand]: 206/209 looper letters, 22 selfloop transitions, 2 changer transitions 0/24 dead transitions. [2023-11-19 08:00:12,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 24 transitions, 145 flow [2023-11-19 08:00:12,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:00:12,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:00:12,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 278 transitions. [2023-11-19 08:00:12,735 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4433811802232855 [2023-11-19 08:00:12,735 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 278 transitions. [2023-11-19 08:00:12,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 278 transitions. [2023-11-19 08:00:12,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:12,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 278 transitions. [2023-11-19 08:00:12,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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) [2023-11-19 08:00:12,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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) [2023-11-19 08:00:12,740 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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) [2023-11-19 08:00:12,740 INFO L175 Difference]: Start difference. First operand has 24 places, 15 transitions, 57 flow. Second operand 3 states and 278 transitions. [2023-11-19 08:00:12,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 24 transitions, 145 flow [2023-11-19 08:00:12,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 24 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:00:12,750 INFO L231 Difference]: Finished difference. Result has 26 places, 16 transitions, 68 flow [2023-11-19 08:00:12,750 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=26, PETRI_TRANSITIONS=16} [2023-11-19 08:00:12,753 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 8 predicate places. [2023-11-19 08:00:12,754 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 16 transitions, 68 flow [2023-11-19 08:00:12,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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) [2023-11-19 08:00:12,754 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:12,754 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:12,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-19 08:00:12,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:00:12,965 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-11-19 08:00:12,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:12,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1271639669, now seen corresponding path program 1 times [2023-11-19 08:00:12,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:00:12,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [948056030] [2023-11-19 08:00:12,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:12,967 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:00:12,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:00:12,968 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 08:00:12,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-19 08:00:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:13,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:00:13,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:00:13,083 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 08:00:13,084 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:00:13,115 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 08:00:13,115 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:00:13,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [948056030] [2023-11-19 08:00:13,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [948056030] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:00:13,116 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 08:00:13,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-11-19 08:00:13,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202410602] [2023-11-19 08:00:13,117 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 08:00:13,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:00:13,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:00:13,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:00:13,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:00:13,138 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 209 [2023-11-19 08:00:13,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 68 flow. Second operand has 6 states, 6 states have (on average 89.0) internal successors, (534), 6 states have internal predecessors, (534), 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) [2023-11-19 08:00:13,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:13,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 209 [2023-11-19 08:00:13,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:13,264 INFO L124 PetriNetUnfolderBase]: 78/158 cut-off events. [2023-11-19 08:00:13,265 INFO L125 PetriNetUnfolderBase]: For 214/214 co-relation queries the response was YES. [2023-11-19 08:00:13,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 499 conditions, 158 events. 78/158 cut-off events. For 214/214 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 443 event pairs, 12 based on Foata normal form. 21/179 useless extension candidates. Maximal degree in co-relation 489. Up to 40 conditions per place. [2023-11-19 08:00:13,267 INFO L140 encePairwiseOnDemand]: 205/209 looper letters, 44 selfloop transitions, 6 changer transitions 0/50 dead transitions. [2023-11-19 08:00:13,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 50 transitions, 328 flow [2023-11-19 08:00:13,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:00:13,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 08:00:13,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 549 transitions. [2023-11-19 08:00:13,271 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43779904306220097 [2023-11-19 08:00:13,271 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 549 transitions. [2023-11-19 08:00:13,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 549 transitions. [2023-11-19 08:00:13,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:13,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 549 transitions. [2023-11-19 08:00:13,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.5) internal successors, (549), 6 states have internal predecessors, (549), 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) [2023-11-19 08:00:13,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 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) [2023-11-19 08:00:13,277 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 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) [2023-11-19 08:00:13,278 INFO L175 Difference]: Start difference. First operand has 26 places, 16 transitions, 68 flow. Second operand 6 states and 549 transitions. [2023-11-19 08:00:13,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 50 transitions, 328 flow [2023-11-19 08:00:13,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 50 transitions, 326 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:00:13,281 INFO L231 Difference]: Finished difference. Result has 34 places, 19 transitions, 106 flow [2023-11-19 08:00:13,282 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=106, PETRI_PLACES=34, PETRI_TRANSITIONS=19} [2023-11-19 08:00:13,282 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 16 predicate places. [2023-11-19 08:00:13,283 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 19 transitions, 106 flow [2023-11-19 08:00:13,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 89.0) internal successors, (534), 6 states have internal predecessors, (534), 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) [2023-11-19 08:00:13,283 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:13,283 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:13,287 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-11-19 08:00:13,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:00:13,486 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-11-19 08:00:13,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:13,487 INFO L85 PathProgramCache]: Analyzing trace with hash 47501880, now seen corresponding path program 2 times [2023-11-19 08:00:13,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:00:13,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [272625663] [2023-11-19 08:00:13,487 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 08:00:13,488 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:00:13,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:00:13,489 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 08:00:13,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-19 08:00:13,579 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 08:00:13,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 08:00:13,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 08:00:13,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:00:13,669 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 08:00:13,669 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:00:13,793 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 08:00:13,794 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:00:13,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [272625663] [2023-11-19 08:00:13,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [272625663] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:00:13,794 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 08:00:13,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-11-19 08:00:13,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591232449] [2023-11-19 08:00:13,794 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 08:00:13,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 08:00:13,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:00:13,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 08:00:13,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-19 08:00:13,867 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 209 [2023-11-19 08:00:13,869 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 19 transitions, 106 flow. Second operand has 12 states, 12 states have (on average 88.5) internal successors, (1062), 12 states have internal predecessors, (1062), 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) [2023-11-19 08:00:13,869 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:13,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 209 [2023-11-19 08:00:13,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:14,321 INFO L124 PetriNetUnfolderBase]: 162/326 cut-off events. [2023-11-19 08:00:14,321 INFO L125 PetriNetUnfolderBase]: For 627/627 co-relation queries the response was YES. [2023-11-19 08:00:14,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1299 conditions, 326 events. 162/326 cut-off events. For 627/627 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 915 event pairs, 12 based on Foata normal form. 42/368 useless extension candidates. Maximal degree in co-relation 1286. Up to 84 conditions per place. [2023-11-19 08:00:14,327 INFO L140 encePairwiseOnDemand]: 205/209 looper letters, 92 selfloop transitions, 12 changer transitions 0/104 dead transitions. [2023-11-19 08:00:14,327 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 104 transitions, 770 flow [2023-11-19 08:00:14,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 08:00:14,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-19 08:00:14,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1098 transitions. [2023-11-19 08:00:14,333 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43779904306220097 [2023-11-19 08:00:14,333 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1098 transitions. [2023-11-19 08:00:14,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1098 transitions. [2023-11-19 08:00:14,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:14,334 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1098 transitions. [2023-11-19 08:00:14,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 91.5) internal successors, (1098), 12 states have internal predecessors, (1098), 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) [2023-11-19 08:00:14,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 209.0) internal successors, (2717), 13 states have internal predecessors, (2717), 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) [2023-11-19 08:00:14,346 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 209.0) internal successors, (2717), 13 states have internal predecessors, (2717), 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) [2023-11-19 08:00:14,346 INFO L175 Difference]: Start difference. First operand has 34 places, 19 transitions, 106 flow. Second operand 12 states and 1098 transitions. [2023-11-19 08:00:14,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 104 transitions, 770 flow [2023-11-19 08:00:14,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 104 transitions, 750 flow, removed 9 selfloop flow, removed 1 redundant places. [2023-11-19 08:00:14,354 INFO L231 Difference]: Finished difference. Result has 51 places, 26 transitions, 194 flow [2023-11-19 08:00:14,354 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=194, PETRI_PLACES=51, PETRI_TRANSITIONS=26} [2023-11-19 08:00:14,355 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 33 predicate places. [2023-11-19 08:00:14,355 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 26 transitions, 194 flow [2023-11-19 08:00:14,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 88.5) internal successors, (1062), 12 states have internal predecessors, (1062), 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) [2023-11-19 08:00:14,356 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:14,356 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:14,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-11-19 08:00:14,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:00:14,559 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-11-19 08:00:14,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:14,560 INFO L85 PathProgramCache]: Analyzing trace with hash -405850618, now seen corresponding path program 3 times [2023-11-19 08:00:14,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:00:14,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1464775251] [2023-11-19 08:00:14,561 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 08:00:14,561 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:00:14,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:00:14,562 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 08:00:14,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-19 08:00:14,660 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-19 08:00:14,660 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 08:00:14,662 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 08:00:14,664 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:00:14,719 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-19 08:00:14,719 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:00:14,820 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-19 08:00:14,820 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:00:14,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1464775251] [2023-11-19 08:00:14,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1464775251] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:00:14,821 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 08:00:14,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-11-19 08:00:14,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828514423] [2023-11-19 08:00:14,821 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 08:00:14,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 08:00:14,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:00:14,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 08:00:14,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-19 08:00:14,879 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 209 [2023-11-19 08:00:14,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 26 transitions, 194 flow. Second operand has 12 states, 12 states have (on average 85.66666666666667) internal successors, (1028), 12 states have internal predecessors, (1028), 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) [2023-11-19 08:00:14,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:14,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 209 [2023-11-19 08:00:14,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:15,351 INFO L124 PetriNetUnfolderBase]: 300/602 cut-off events. [2023-11-19 08:00:15,351 INFO L125 PetriNetUnfolderBase]: For 3043/3043 co-relation queries the response was YES. [2023-11-19 08:00:15,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2744 conditions, 602 events. 300/602 cut-off events. For 3043/3043 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2400 event pairs, 44 based on Foata normal form. 138/740 useless extension candidates. Maximal degree in co-relation 2724. Up to 208 conditions per place. [2023-11-19 08:00:15,360 INFO L140 encePairwiseOnDemand]: 206/209 looper letters, 171 selfloop transitions, 11 changer transitions 0/182 dead transitions. [2023-11-19 08:00:15,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 182 transitions, 2054 flow [2023-11-19 08:00:15,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 08:00:15,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-19 08:00:15,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1075 transitions. [2023-11-19 08:00:15,366 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42862838915470497 [2023-11-19 08:00:15,367 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1075 transitions. [2023-11-19 08:00:15,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1075 transitions. [2023-11-19 08:00:15,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:15,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1075 transitions. [2023-11-19 08:00:15,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 89.58333333333333) internal successors, (1075), 12 states have internal predecessors, (1075), 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) [2023-11-19 08:00:15,377 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 209.0) internal successors, (2717), 13 states have internal predecessors, (2717), 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) [2023-11-19 08:00:15,379 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 209.0) internal successors, (2717), 13 states have internal predecessors, (2717), 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) [2023-11-19 08:00:15,379 INFO L175 Difference]: Start difference. First operand has 51 places, 26 transitions, 194 flow. Second operand 12 states and 1075 transitions. [2023-11-19 08:00:15,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 182 transitions, 2054 flow [2023-11-19 08:00:15,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 182 transitions, 1988 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 08:00:15,392 INFO L231 Difference]: Finished difference. Result has 65 places, 32 transitions, 272 flow [2023-11-19 08:00:15,392 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=272, PETRI_PLACES=65, PETRI_TRANSITIONS=32} [2023-11-19 08:00:15,393 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 47 predicate places. [2023-11-19 08:00:15,393 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 32 transitions, 272 flow [2023-11-19 08:00:15,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 85.66666666666667) internal successors, (1028), 12 states have internal predecessors, (1028), 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) [2023-11-19 08:00:15,394 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:15,394 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:15,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-19 08:00:15,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:00:15,602 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-11-19 08:00:15,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:15,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1834096806, now seen corresponding path program 4 times [2023-11-19 08:00:15,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:00:15,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2136503143] [2023-11-19 08:00:15,603 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-19 08:00:15,603 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:00:15,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:00:15,604 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 08:00:15,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c99d9d09-cef7-449f-850a-695b7336829a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-19 08:00:15,743 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-19 08:00:15,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 08:00:15,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 08:00:15,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:00:15,908 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 55 proven. 55 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-19 08:00:15,909 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:00:16,350 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 55 proven. 55 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-19 08:00:16,351 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:00:16,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2136503143] [2023-11-19 08:00:16,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2136503143] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:00:16,351 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 08:00:16,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2023-11-19 08:00:16,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850716336] [2023-11-19 08:00:16,352 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 08:00:16,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-19 08:00:16,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:00:16,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-19 08:00:16,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=387, Unknown=0, NotChecked=0, Total=552 [2023-11-19 08:00:16,548 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 209 [2023-11-19 08:00:16,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 32 transitions, 272 flow. Second operand has 24 states, 24 states have (on average 85.5) internal successors, (2052), 24 states have internal predecessors, (2052), 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) [2023-11-19 08:00:16,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:16,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 209 [2023-11-19 08:00:16,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand