./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_15-funarg_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 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_b4aa83ac-89d1-48ea-bafd-a9e2c77d4811/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa83ac-89d1-48ea-bafd-a9e2c77d4811/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa83ac-89d1-48ea-bafd-a9e2c77d4811/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa83ac-89d1-48ea-bafd-a9e2c77d4811/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_15-funarg_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa83ac-89d1-48ea-bafd-a9e2c77d4811/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa83ac-89d1-48ea-bafd-a9e2c77d4811/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --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 df8b3c6576309918ab02364f32df18a2107bf04dd579248cd48dca03e33a8ed2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 15:46:03,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:46:03,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:46:03,642 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:46:03,642 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:46:03,643 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:46:03,644 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:46:03,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:46:03,646 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:46:03,647 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:46:03,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:46:03,648 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:46:03,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:46:03,649 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:46:03,650 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:46:03,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:46:03,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:46:03,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:46:03,653 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:46:03,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:46:03,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:46:03,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:46:03,657 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:46:03,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:46:03,660 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:46:03,661 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:46:03,661 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:46:03,662 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:46:03,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:46:03,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:46:03,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:46:03,663 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:46:03,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:46:03,664 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:46:03,665 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:46:03,665 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:46:03,666 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:46:03,666 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:46:03,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:46:03,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:46:03,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:46:03,668 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa83ac-89d1-48ea-bafd-a9e2c77d4811/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 15:46:03,685 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:46:03,685 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:46:03,685 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:46:03,686 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:46:03,686 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:46:03,686 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:46:03,687 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:46:03,687 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:46:03,687 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:46:03,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:46:03,687 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:46:03,687 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 15:46:03,688 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:46:03,688 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:46:03,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:46:03,688 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 15:46:03,688 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 15:46:03,688 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 15:46:03,688 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:46:03,688 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 15:46:03,688 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:46:03,689 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:46:03,689 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:46:03,689 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:46:03,689 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:46:03,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:46:03,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:46:03,689 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:46:03,690 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:46:03,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:46:03,690 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:46:03,690 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:46:03,690 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:46:03,690 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:46:03,690 INFO L138 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_b4aa83ac-89d1-48ea-bafd-a9e2c77d4811/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa83ac-89d1-48ea-bafd-a9e2c77d4811/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df8b3c6576309918ab02364f32df18a2107bf04dd579248cd48dca03e33a8ed2 [2022-12-13 15:46:03,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:46:03,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:46:03,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:46:03,885 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:46:03,885 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:46:03,886 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa83ac-89d1-48ea-bafd-a9e2c77d4811/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/04-mutex_15-funarg_nr.i [2022-12-13 15:46:06,472 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:46:06,668 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:46:06,669 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa83ac-89d1-48ea-bafd-a9e2c77d4811/sv-benchmarks/c/goblint-regression/04-mutex_15-funarg_nr.i [2022-12-13 15:46:06,679 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa83ac-89d1-48ea-bafd-a9e2c77d4811/bin/uautomizer-uyxdKDjOR8/data/39e4e1cbb/499b59354f9547bb972ee1d2396b8e99/FLAG04c78f7f7 [2022-12-13 15:46:06,690 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa83ac-89d1-48ea-bafd-a9e2c77d4811/bin/uautomizer-uyxdKDjOR8/data/39e4e1cbb/499b59354f9547bb972ee1d2396b8e99 [2022-12-13 15:46:06,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:46:06,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:46:06,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:46:06,694 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:46:06,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:46:06,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:46:06" (1/1) ... [2022-12-13 15:46:06,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e9580fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:46:06, skipping insertion in model container [2022-12-13 15:46:06,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:46:06" (1/1) ... [2022-12-13 15:46:06,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:46:06,732 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:46:07,010 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:46:07,023 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:46:07,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:46:07,087 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:46:07,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:46:07 WrapperNode [2022-12-13 15:46:07,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:46:07,088 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:46:07,089 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:46:07,089 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:46:07,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:46:07" (1/1) ... [2022-12-13 15:46:07,105 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:46:07" (1/1) ... [2022-12-13 15:46:07,120 INFO L138 Inliner]: procedures = 263, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 58 [2022-12-13 15:46:07,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:46:07,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:46:07,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:46:07,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:46:07,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:46:07" (1/1) ... [2022-12-13 15:46:07,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:46:07" (1/1) ... [2022-12-13 15:46:07,129 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:46:07" (1/1) ... [2022-12-13 15:46:07,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:46:07" (1/1) ... [2022-12-13 15:46:07,134 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:46:07" (1/1) ... [2022-12-13 15:46:07,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:46:07" (1/1) ... [2022-12-13 15:46:07,136 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:46:07" (1/1) ... [2022-12-13 15:46:07,137 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:46:07" (1/1) ... [2022-12-13 15:46:07,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:46:07,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:46:07,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:46:07,139 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:46:07,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:46:07" (1/1) ... [2022-12-13 15:46:07,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:46:07,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa83ac-89d1-48ea-bafd-a9e2c77d4811/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:46:07,162 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa83ac-89d1-48ea-bafd-a9e2c77d4811/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:46:07,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa83ac-89d1-48ea-bafd-a9e2c77d4811/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:46:07,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 15:46:07,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 15:46:07,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 15:46:07,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 15:46:07,190 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 15:46:07,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:46:07,190 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 15:46:07,190 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 15:46:07,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:46:07,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:46:07,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:46:07,192 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 15:46:07,297 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:46:07,299 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:46:07,439 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:46:07,445 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:46:07,446 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 15:46:07,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:46:07 BoogieIcfgContainer [2022-12-13 15:46:07,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:46:07,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:46:07,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:46:07,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:46:07,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:46:06" (1/3) ... [2022-12-13 15:46:07,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21d5b87d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:46:07, skipping insertion in model container [2022-12-13 15:46:07,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:46:07" (2/3) ... [2022-12-13 15:46:07,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21d5b87d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:46:07, skipping insertion in model container [2022-12-13 15:46:07,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:46:07" (3/3) ... [2022-12-13 15:46:07,455 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_15-funarg_nr.i [2022-12-13 15:46:07,471 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:46:07,471 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-12-13 15:46:07,471 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 15:46:07,512 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 15:46:07,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 82 transitions, 172 flow [2022-12-13 15:46:07,572 INFO L130 PetriNetUnfolder]: 0/81 cut-off events. [2022-12-13 15:46:07,572 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 15:46:07,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 81 events. 0/81 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-12-13 15:46:07,575 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 82 transitions, 172 flow [2022-12-13 15:46:07,579 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 76 transitions, 158 flow [2022-12-13 15:46:07,582 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 15:46:07,590 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 76 transitions, 158 flow [2022-12-13 15:46:07,592 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 76 transitions, 158 flow [2022-12-13 15:46:07,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 76 transitions, 158 flow [2022-12-13 15:46:07,611 INFO L130 PetriNetUnfolder]: 0/76 cut-off events. [2022-12-13 15:46:07,612 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 15:46:07,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 76 events. 0/76 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-12-13 15:46:07,613 INFO L119 LiptonReduction]: Number of co-enabled transitions 308 [2022-12-13 15:46:09,577 INFO L134 LiptonReduction]: Checked pairs total: 770 [2022-12-13 15:46:09,577 INFO L136 LiptonReduction]: Total number of compositions: 74 [2022-12-13 15:46:09,588 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:46:09,593 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;@5d72d249, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:46:09,593 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-13 15:46:09,594 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 15:46:09,594 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:46:09,594 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:46:09,594 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 15:46:09,595 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-12-13 15:46:09,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:46:09,598 INFO L85 PathProgramCache]: Analyzing trace with hash 278, now seen corresponding path program 1 times [2022-12-13 15:46:09,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:46:09,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887547444] [2022-12-13 15:46:09,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:46:09,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:46:09,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:46:09,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:46:09,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:46:09,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887547444] [2022-12-13 15:46:09,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887547444] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:46:09,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:46:09,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 15:46:09,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339184963] [2022-12-13 15:46:09,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:46:09,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 15:46:09,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:46:09,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 15:46:09,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 15:46:09,710 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 156 [2022-12-13 15:46:09,711 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 16 transitions, 38 flow. Second operand has 2 states, 2 states have (on average 80.5) internal successors, (161), 2 states have internal predecessors, (161), 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) [2022-12-13 15:46:09,711 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:46:09,712 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 156 [2022-12-13 15:46:09,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:46:09,741 INFO L130 PetriNetUnfolder]: 21/56 cut-off events. [2022-12-13 15:46:09,741 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 15:46:09,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 56 events. 21/56 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 122 event pairs, 21 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 104. Up to 57 conditions per place. [2022-12-13 15:46:09,743 INFO L137 encePairwiseOnDemand]: 154/156 looper letters, 14 selfloop transitions, 0 changer transitions 0/14 dead transitions. [2022-12-13 15:46:09,743 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 14 transitions, 62 flow [2022-12-13 15:46:09,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 15:46:09,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 15:46:09,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 176 transitions. [2022-12-13 15:46:09,753 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5641025641025641 [2022-12-13 15:46:09,753 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 176 transitions. [2022-12-13 15:46:09,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 176 transitions. [2022-12-13 15:46:09,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:46:09,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 176 transitions. [2022-12-13 15:46:09,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 88.0) internal successors, (176), 2 states have internal predecessors, (176), 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) [2022-12-13 15:46:09,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:46:09,761 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:46:09,762 INFO L175 Difference]: Start difference. First operand has 20 places, 16 transitions, 38 flow. Second operand 2 states and 176 transitions. [2022-12-13 15:46:09,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 14 transitions, 62 flow [2022-12-13 15:46:09,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 14 transitions, 58 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 15:46:09,766 INFO L231 Difference]: Finished difference. Result has 17 places, 14 transitions, 30 flow [2022-12-13 15:46:09,767 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=30, PETRI_PLACES=17, PETRI_TRANSITIONS=14} [2022-12-13 15:46:09,770 INFO L288 CegarLoopForPetriNet]: 20 programPoint places, -3 predicate places. [2022-12-13 15:46:09,770 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 14 transitions, 30 flow [2022-12-13 15:46:09,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 80.5) internal successors, (161), 2 states have internal predecessors, (161), 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) [2022-12-13 15:46:09,770 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:46:09,770 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:46:09,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 15:46:09,771 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-12-13 15:46:09,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:46:09,771 INFO L85 PathProgramCache]: Analyzing trace with hash -620057630, now seen corresponding path program 1 times [2022-12-13 15:46:09,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:46:09,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810186902] [2022-12-13 15:46:09,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:46:09,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:46:09,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:46:09,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:46:09,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:46:09,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810186902] [2022-12-13 15:46:09,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810186902] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:46:09,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:46:09,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 15:46:09,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298117520] [2022-12-13 15:46:09,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:46:09,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:46:09,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:46:09,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:46:09,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:46:09,912 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 156 [2022-12-13 15:46:09,913 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 14 transitions, 30 flow. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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) [2022-12-13 15:46:09,913 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:46:09,913 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 156 [2022-12-13 15:46:09,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:46:09,938 INFO L130 PetriNetUnfolder]: 18/49 cut-off events. [2022-12-13 15:46:09,938 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:46:09,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 49 events. 18/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 93 event pairs, 18 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 99. Up to 48 conditions per place. [2022-12-13 15:46:09,938 INFO L137 encePairwiseOnDemand]: 153/156 looper letters, 11 selfloop transitions, 2 changer transitions 0/13 dead transitions. [2022-12-13 15:46:09,938 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 13 transitions, 54 flow [2022-12-13 15:46:09,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:46:09,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:46:09,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 230 transitions. [2022-12-13 15:46:09,940 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49145299145299143 [2022-12-13 15:46:09,940 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 230 transitions. [2022-12-13 15:46:09,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 230 transitions. [2022-12-13 15:46:09,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:46:09,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 230 transitions. [2022-12-13 15:46:09,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2022-12-13 15:46:09,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 156.0) internal successors, (624), 4 states have internal predecessors, (624), 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) [2022-12-13 15:46:09,943 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 156.0) internal successors, (624), 4 states have internal predecessors, (624), 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) [2022-12-13 15:46:09,943 INFO L175 Difference]: Start difference. First operand has 17 places, 14 transitions, 30 flow. Second operand 3 states and 230 transitions. [2022-12-13 15:46:09,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 13 transitions, 54 flow [2022-12-13 15:46:09,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 13 transitions, 54 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 15:46:09,944 INFO L231 Difference]: Finished difference. Result has 18 places, 13 transitions, 32 flow [2022-12-13 15:46:09,944 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=32, PETRI_PLACES=18, PETRI_TRANSITIONS=13} [2022-12-13 15:46:09,945 INFO L288 CegarLoopForPetriNet]: 20 programPoint places, -2 predicate places. [2022-12-13 15:46:09,945 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 13 transitions, 32 flow [2022-12-13 15:46:09,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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) [2022-12-13 15:46:09,945 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:46:09,946 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:46:09,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 15:46:09,946 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-12-13 15:46:09,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:46:09,947 INFO L85 PathProgramCache]: Analyzing trace with hash -620057631, now seen corresponding path program 1 times [2022-12-13 15:46:09,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:46:09,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889842525] [2022-12-13 15:46:09,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:46:09,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:46:09,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:46:10,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:46:10,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:46:10,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889842525] [2022-12-13 15:46:10,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889842525] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:46:10,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:46:10,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 15:46:10,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777918800] [2022-12-13 15:46:10,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:46:10,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:46:10,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:46:10,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:46:10,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:46:10,090 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 156 [2022-12-13 15:46:10,090 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 13 transitions, 32 flow. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2022-12-13 15:46:10,091 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:46:10,091 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 156 [2022-12-13 15:46:10,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:46:10,116 INFO L130 PetriNetUnfolder]: 15/42 cut-off events. [2022-12-13 15:46:10,117 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:46:10,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 42 events. 15/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 71 event pairs, 15 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 87. Up to 41 conditions per place. [2022-12-13 15:46:10,117 INFO L137 encePairwiseOnDemand]: 153/156 looper letters, 10 selfloop transitions, 2 changer transitions 0/12 dead transitions. [2022-12-13 15:46:10,117 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 12 transitions, 54 flow [2022-12-13 15:46:10,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:46:10,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:46:10,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 238 transitions. [2022-12-13 15:46:10,119 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5085470085470085 [2022-12-13 15:46:10,119 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 238 transitions. [2022-12-13 15:46:10,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 238 transitions. [2022-12-13 15:46:10,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:46:10,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 238 transitions. [2022-12-13 15:46:10,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2022-12-13 15:46:10,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 156.0) internal successors, (624), 4 states have internal predecessors, (624), 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) [2022-12-13 15:46:10,123 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 156.0) internal successors, (624), 4 states have internal predecessors, (624), 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) [2022-12-13 15:46:10,123 INFO L175 Difference]: Start difference. First operand has 18 places, 13 transitions, 32 flow. Second operand 3 states and 238 transitions. [2022-12-13 15:46:10,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 12 transitions, 54 flow [2022-12-13 15:46:10,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 12 transitions, 50 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 15:46:10,124 INFO L231 Difference]: Finished difference. Result has 17 places, 12 transitions, 30 flow [2022-12-13 15:46:10,124 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=30, PETRI_PLACES=17, PETRI_TRANSITIONS=12} [2022-12-13 15:46:10,124 INFO L288 CegarLoopForPetriNet]: 20 programPoint places, -3 predicate places. [2022-12-13 15:46:10,125 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 12 transitions, 30 flow [2022-12-13 15:46:10,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2022-12-13 15:46:10,125 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:46:10,125 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:46:10,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 15:46:10,125 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-12-13 15:46:10,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:46:10,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1991407316, now seen corresponding path program 1 times [2022-12-13 15:46:10,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:46:10,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889389762] [2022-12-13 15:46:10,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:46:10,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:46:10,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:46:10,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:46:10,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:46:10,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889389762] [2022-12-13 15:46:10,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889389762] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:46:10,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:46:10,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:46:10,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708863071] [2022-12-13 15:46:10,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:46:10,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:46:10,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:46:10,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:46:10,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:46:10,234 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 156 [2022-12-13 15:46:10,234 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 12 transitions, 30 flow. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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) [2022-12-13 15:46:10,234 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:46:10,234 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 156 [2022-12-13 15:46:10,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:46:10,256 INFO L130 PetriNetUnfolder]: 2/23 cut-off events. [2022-12-13 15:46:10,256 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:46:10,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 23 events. 2/23 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs, 2 based on Foata normal form. 7/30 useless extension candidates. Maximal degree in co-relation 49. Up to 12 conditions per place. [2022-12-13 15:46:10,256 INFO L137 encePairwiseOnDemand]: 150/156 looper letters, 6 selfloop transitions, 6 changer transitions 0/12 dead transitions. [2022-12-13 15:46:10,256 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 12 transitions, 54 flow [2022-12-13 15:46:10,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:46:10,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:46:10,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 234 transitions. [2022-12-13 15:46:10,258 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-13 15:46:10,258 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 234 transitions. [2022-12-13 15:46:10,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 234 transitions. [2022-12-13 15:46:10,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:46:10,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 234 transitions. [2022-12-13 15:46:10,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) [2022-12-13 15:46:10,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 156.0) internal successors, (624), 4 states have internal predecessors, (624), 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) [2022-12-13 15:46:10,260 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 156.0) internal successors, (624), 4 states have internal predecessors, (624), 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) [2022-12-13 15:46:10,260 INFO L175 Difference]: Start difference. First operand has 17 places, 12 transitions, 30 flow. Second operand 3 states and 234 transitions. [2022-12-13 15:46:10,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 12 transitions, 54 flow [2022-12-13 15:46:10,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 12 transitions, 50 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 15:46:10,261 INFO L231 Difference]: Finished difference. Result has 17 places, 12 transitions, 38 flow [2022-12-13 15:46:10,262 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=38, PETRI_PLACES=17, PETRI_TRANSITIONS=12} [2022-12-13 15:46:10,262 INFO L288 CegarLoopForPetriNet]: 20 programPoint places, -3 predicate places. [2022-12-13 15:46:10,262 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 12 transitions, 38 flow [2022-12-13 15:46:10,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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) [2022-12-13 15:46:10,263 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:46:10,263 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:46:10,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 15:46:10,263 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-12-13 15:46:10,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:46:10,263 INFO L85 PathProgramCache]: Analyzing trace with hash -768000774, now seen corresponding path program 2 times [2022-12-13 15:46:10,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:46:10,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937622288] [2022-12-13 15:46:10,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:46:10,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:46:10,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:46:10,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:46:10,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:46:10,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937622288] [2022-12-13 15:46:10,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937622288] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:46:10,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:46:10,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 15:46:10,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035901893] [2022-12-13 15:46:10,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:46:10,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:46:10,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:46:10,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:46:10,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:46:10,377 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 156 [2022-12-13 15:46:10,377 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 12 transitions, 38 flow. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2022-12-13 15:46:10,377 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:46:10,377 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 156 [2022-12-13 15:46:10,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:46:10,394 INFO L130 PetriNetUnfolder]: 2/22 cut-off events. [2022-12-13 15:46:10,394 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:46:10,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 22 events. 2/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs, 2 based on Foata normal form. 1/23 useless extension candidates. Maximal degree in co-relation 59. Up to 22 conditions per place. [2022-12-13 15:46:10,394 INFO L137 encePairwiseOnDemand]: 154/156 looper letters, 0 selfloop transitions, 0 changer transitions 11/11 dead transitions. [2022-12-13 15:46:10,394 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 11 transitions, 58 flow [2022-12-13 15:46:10,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:46:10,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:46:10,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 240 transitions. [2022-12-13 15:46:10,396 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5128205128205128 [2022-12-13 15:46:10,396 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 240 transitions. [2022-12-13 15:46:10,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 240 transitions. [2022-12-13 15:46:10,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:46:10,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 240 transitions. [2022-12-13 15:46:10,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2022-12-13 15:46:10,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 156.0) internal successors, (624), 4 states have internal predecessors, (624), 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) [2022-12-13 15:46:10,399 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 156.0) internal successors, (624), 4 states have internal predecessors, (624), 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) [2022-12-13 15:46:10,399 INFO L175 Difference]: Start difference. First operand has 17 places, 12 transitions, 38 flow. Second operand 3 states and 240 transitions. [2022-12-13 15:46:10,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 11 transitions, 58 flow [2022-12-13 15:46:10,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 11 transitions, 52 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:46:10,399 INFO L231 Difference]: Finished difference. Result has 17 places, 0 transitions, 0 flow [2022-12-13 15:46:10,399 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=17, PETRI_TRANSITIONS=0} [2022-12-13 15:46:10,400 INFO L288 CegarLoopForPetriNet]: 20 programPoint places, -3 predicate places. [2022-12-13 15:46:10,400 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 0 transitions, 0 flow [2022-12-13 15:46:10,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2022-12-13 15:46:10,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 6 remaining) [2022-12-13 15:46:10,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 6 remaining) [2022-12-13 15:46:10,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 6 remaining) [2022-12-13 15:46:10,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 6 remaining) [2022-12-13 15:46:10,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (1 of 6 remaining) [2022-12-13 15:46:10,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2022-12-13 15:46:10,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 15:46:10,403 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2022-12-13 15:46:10,406 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 15:46:10,406 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 15:46:10,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:46:10 BasicIcfg [2022-12-13 15:46:10,409 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 15:46:10,409 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 15:46:10,409 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 15:46:10,409 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 15:46:10,409 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:46:07" (3/4) ... [2022-12-13 15:46:10,412 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 15:46:10,417 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-12-13 15:46:10,420 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-12-13 15:46:10,420 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 15:46:10,420 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-13 15:46:10,443 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa83ac-89d1-48ea-bafd-a9e2c77d4811/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 15:46:10,443 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 15:46:10,444 INFO L158 Benchmark]: Toolchain (without parser) took 3751.34ms. Allocated memory is still 167.8MB. Free memory was 135.8MB in the beginning and 124.5MB in the end (delta: 11.3MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2022-12-13 15:46:10,444 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 121.6MB. Free memory is still 95.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:46:10,445 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.37ms. Allocated memory is still 167.8MB. Free memory was 135.8MB in the beginning and 108.1MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-13 15:46:10,445 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.71ms. Allocated memory is still 167.8MB. Free memory was 108.1MB in the beginning and 106.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:46:10,446 INFO L158 Benchmark]: Boogie Preprocessor took 17.73ms. Allocated memory is still 167.8MB. Free memory was 106.0MB in the beginning and 104.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:46:10,446 INFO L158 Benchmark]: RCFGBuilder took 308.43ms. Allocated memory is still 167.8MB. Free memory was 104.6MB in the beginning and 90.6MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 15:46:10,446 INFO L158 Benchmark]: TraceAbstraction took 2959.19ms. Allocated memory is still 167.8MB. Free memory was 89.9MB in the beginning and 127.6MB in the end (delta: -37.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:46:10,447 INFO L158 Benchmark]: Witness Printer took 34.53ms. Allocated memory is still 167.8MB. Free memory was 127.6MB in the beginning and 124.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:46:10,449 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 121.6MB. Free memory is still 95.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 394.37ms. Allocated memory is still 167.8MB. Free memory was 135.8MB in the beginning and 108.1MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.71ms. Allocated memory is still 167.8MB. Free memory was 108.1MB in the beginning and 106.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.73ms. Allocated memory is still 167.8MB. Free memory was 106.0MB in the beginning and 104.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 308.43ms. Allocated memory is still 167.8MB. Free memory was 104.6MB in the beginning and 90.6MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2959.19ms. Allocated memory is still 167.8MB. Free memory was 89.9MB in the beginning and 127.6MB in the end (delta: -37.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 34.53ms. Allocated memory is still 167.8MB. Free memory was 127.6MB in the beginning and 124.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 80 PlacesBefore, 20 PlacesAfterwards, 76 TransitionsBefore, 16 TransitionsAfterwards, 308 CoEnabledTransitionPairs, 7 FixpointIterations, 49 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 74 TotalNumberOfCompositions, 770 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 431, independent: 315, independent conditional: 0, independent unconditional: 315, dependent: 116, dependent conditional: 0, dependent unconditional: 116, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 175, independent: 155, independent conditional: 0, independent unconditional: 155, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 431, independent: 160, independent conditional: 0, independent unconditional: 160, dependent: 96, dependent conditional: 0, dependent unconditional: 96, unknown: 175, unknown conditional: 0, unknown unconditional: 175] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 930]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 92 locations, 6 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: 2.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 137 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 47 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 155 IncrementalHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 16 mSDtfsCounter, 155 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 167 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 15:46:10,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa83ac-89d1-48ea-bafd-a9e2c77d4811/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE