./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/security.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ea4634-c864-4286-9c0e-79c47b941f66/bin/ugemcutter-YQQFZV6HUA/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ea4634-c864-4286-9c0e-79c47b941f66/bin/ugemcutter-YQQFZV6HUA/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ea4634-c864-4286-9c0e-79c47b941f66/bin/ugemcutter-YQQFZV6HUA/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ea4634-c864-4286-9c0e-79c47b941f66/bin/ugemcutter-YQQFZV6HUA/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/security.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ea4634-c864-4286-9c0e-79c47b941f66/bin/ugemcutter-YQQFZV6HUA/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ea4634-c864-4286-9c0e-79c47b941f66/bin/ugemcutter-YQQFZV6HUA --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 417dec4be084b2867b601c43d125afd61f7d3912bd17641ca10c0f094ab6abe0 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 09:48:05,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 09:48:05,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 09:48:05,975 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 09:48:05,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 09:48:05,977 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 09:48:05,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 09:48:05,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 09:48:05,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 09:48:05,984 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 09:48:05,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 09:48:05,987 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 09:48:05,988 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 09:48:05,989 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 09:48:05,990 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 09:48:05,992 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 09:48:05,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 09:48:05,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 09:48:05,996 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 09:48:06,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 09:48:06,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 09:48:06,010 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 09:48:06,012 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 09:48:06,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 09:48:06,019 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 09:48:06,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 09:48:06,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 09:48:06,021 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 09:48:06,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 09:48:06,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 09:48:06,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 09:48:06,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 09:48:06,029 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 09:48:06,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 09:48:06,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 09:48:06,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 09:48:06,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 09:48:06,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 09:48:06,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 09:48:06,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 09:48:06,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 09:48:06,036 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ea4634-c864-4286-9c0e-79c47b941f66/bin/ugemcutter-YQQFZV6HUA/config/svcomp-Reach-32bit-GemCutter_Default.epf [2021-12-07 09:48:06,081 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 09:48:06,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 09:48:06,082 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 09:48:06,082 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 09:48:06,089 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 09:48:06,089 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 09:48:06,090 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 09:48:06,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 09:48:06,090 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 09:48:06,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 09:48:06,092 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 09:48:06,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 09:48:06,092 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 09:48:06,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 09:48:06,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 09:48:06,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 09:48:06,093 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 09:48:06,093 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 09:48:06,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 09:48:06,094 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 09:48:06,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 09:48:06,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 09:48:06,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 09:48:06,095 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-12-07 09:48:06,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 09:48:06,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 09:48:06,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 09:48:06,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 09:48:06,096 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 09:48:06,096 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 09:48:06,096 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2021-12-07 09:48:06,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 09:48:06,097 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 09:48:06,097 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-12-07 09:48:06,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 09:48:06,098 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-12-07 09:48:06,098 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-12-07 09:48:06,098 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_d6ea4634-c864-4286-9c0e-79c47b941f66/bin/ugemcutter-YQQFZV6HUA/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ea4634-c864-4286-9c0e-79c47b941f66/bin/ugemcutter-YQQFZV6HUA Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 417dec4be084b2867b601c43d125afd61f7d3912bd17641ca10c0f094ab6abe0 [2021-12-07 09:48:06,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 09:48:06,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 09:48:06,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 09:48:06,372 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 09:48:06,372 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 09:48:06,373 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ea4634-c864-4286-9c0e-79c47b941f66/bin/ugemcutter-YQQFZV6HUA/../../sv-benchmarks/c/weaver/security.wvr.c [2021-12-07 09:48:06,453 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ea4634-c864-4286-9c0e-79c47b941f66/bin/ugemcutter-YQQFZV6HUA/data/e1333ca07/4110214b2edd4140a445a85acd304e81/FLAG80070d2ea [2021-12-07 09:48:06,904 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 09:48:06,904 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ea4634-c864-4286-9c0e-79c47b941f66/sv-benchmarks/c/weaver/security.wvr.c [2021-12-07 09:48:06,910 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ea4634-c864-4286-9c0e-79c47b941f66/bin/ugemcutter-YQQFZV6HUA/data/e1333ca07/4110214b2edd4140a445a85acd304e81/FLAG80070d2ea [2021-12-07 09:48:07,314 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ea4634-c864-4286-9c0e-79c47b941f66/bin/ugemcutter-YQQFZV6HUA/data/e1333ca07/4110214b2edd4140a445a85acd304e81 [2021-12-07 09:48:07,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 09:48:07,320 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 09:48:07,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 09:48:07,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 09:48:07,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 09:48:07,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:48:07" (1/1) ... [2021-12-07 09:48:07,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57d5721e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:07, skipping insertion in model container [2021-12-07 09:48:07,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:48:07" (1/1) ... [2021-12-07 09:48:07,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 09:48:07,371 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 09:48:07,550 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ea4634-c864-4286-9c0e-79c47b941f66/sv-benchmarks/c/weaver/security.wvr.c[1931,1944] [2021-12-07 09:48:07,553 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 09:48:07,561 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 09:48:07,579 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ea4634-c864-4286-9c0e-79c47b941f66/sv-benchmarks/c/weaver/security.wvr.c[1931,1944] [2021-12-07 09:48:07,580 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 09:48:07,593 INFO L208 MainTranslator]: Completed translation [2021-12-07 09:48:07,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:07 WrapperNode [2021-12-07 09:48:07,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 09:48:07,595 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 09:48:07,595 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 09:48:07,595 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 09:48:07,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:07" (1/1) ... [2021-12-07 09:48:07,609 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:07" (1/1) ... [2021-12-07 09:48:07,627 INFO L137 Inliner]: procedures = 21, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 53 [2021-12-07 09:48:07,627 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 09:48:07,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 09:48:07,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 09:48:07,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 09:48:07,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:07" (1/1) ... [2021-12-07 09:48:07,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:07" (1/1) ... [2021-12-07 09:48:07,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:07" (1/1) ... [2021-12-07 09:48:07,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:07" (1/1) ... [2021-12-07 09:48:07,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:07" (1/1) ... [2021-12-07 09:48:07,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:07" (1/1) ... [2021-12-07 09:48:07,646 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:07" (1/1) ... [2021-12-07 09:48:07,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 09:48:07,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 09:48:07,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 09:48:07,649 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 09:48:07,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:07" (1/1) ... [2021-12-07 09:48:07,657 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 09:48:07,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ea4634-c864-4286-9c0e-79c47b941f66/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:48:07,685 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ea4634-c864-4286-9c0e-79c47b941f66/bin/ugemcutter-YQQFZV6HUA/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 09:48:07,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ea4634-c864-4286-9c0e-79c47b941f66/bin/ugemcutter-YQQFZV6HUA/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 09:48:07,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 09:48:07,733 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-12-07 09:48:07,733 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-12-07 09:48:07,733 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-12-07 09:48:07,733 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-12-07 09:48:07,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 09:48:07,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 09:48:07,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 09:48:07,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 09:48:07,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 09:48:07,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 09:48:07,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 09:48:07,736 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-07 09:48:07,839 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 09:48:07,840 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 09:48:08,054 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 09:48:08,062 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 09:48:08,062 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-07 09:48:08,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:48:08 BoogieIcfgContainer [2021-12-07 09:48:08,064 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 09:48:08,066 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 09:48:08,066 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 09:48:08,069 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 09:48:08,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 09:48:07" (1/3) ... [2021-12-07 09:48:08,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@673fb6dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:48:08, skipping insertion in model container [2021-12-07 09:48:08,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:07" (2/3) ... [2021-12-07 09:48:08,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@673fb6dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:48:08, skipping insertion in model container [2021-12-07 09:48:08,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:48:08" (3/3) ... [2021-12-07 09:48:08,073 INFO L111 eAbstractionObserver]: Analyzing ICFG security.wvr.c [2021-12-07 09:48:08,078 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-07 09:48:08,078 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 09:48:08,078 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 09:48:08,078 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-07 09:48:08,109 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:48:08,115 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:48:08,115 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:48:08,115 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:48:08,116 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:48:08,116 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:48:08,116 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:48:08,117 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:48:08,117 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:48:08,117 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:48:08,117 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:48:08,117 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:48:08,118 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:48:08,118 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:48:08,119 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:48:08,119 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:48:08,119 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:48:08,119 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:48:08,120 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:48:08,120 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:48:08,120 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:48:08,121 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:48:08,121 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:48:08,121 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:48:08,124 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:48:08,124 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:48:08,125 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:48:08,127 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:48:08,128 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:48:08,128 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:48:08,131 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-12-07 09:48:08,179 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-12-07 09:48:08,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ea4634-c864-4286-9c0e-79c47b941f66/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:48:08,181 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ea4634-c864-4286-9c0e-79c47b941f66/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-12-07 09:48:08,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ea4634-c864-4286-9c0e-79c47b941f66/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-12-07 09:48:08,236 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-12-07 09:48:08,252 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-07 09:48:08,252 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-07 09:48:08,435 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-07 09:48:08,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:48:08,444 INFO L85 PathProgramCache]: Analyzing trace with hash 583479019, now seen corresponding path program 1 times [2021-12-07 09:48:08,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:48:08,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367883736] [2021-12-07 09:48:08,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:48:08,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:48:08,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:48:08,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 09:48:08,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:48:08,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367883736] [2021-12-07 09:48:08,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367883736] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:48:08,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:48:08,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 09:48:08,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975782740] [2021-12-07 09:48:08,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:48:08,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-07 09:48:08,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:48:08,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-07 09:48:08,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 09:48:08,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:48:08,835 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:48:08,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 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) [2021-12-07 09:48:08,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:48:08,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:48:08,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 09:48:08,884 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-07 09:48:08,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:48:08,888 INFO L85 PathProgramCache]: Analyzing trace with hash -396818922, now seen corresponding path program 1 times [2021-12-07 09:48:08,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:48:08,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392589195] [2021-12-07 09:48:08,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:48:08,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:48:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:48:09,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 09:48:09,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:48:09,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392589195] [2021-12-07 09:48:09,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392589195] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:48:09,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:48:09,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 09:48:09,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757534024] [2021-12-07 09:48:09,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:48:09,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 09:48:09,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:48:09,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 09:48:09,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-07 09:48:09,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:48:09,241 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:48:09,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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) [2021-12-07 09:48:09,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:48:09,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:48:09,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:48:09,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:48:09,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 09:48:09,524 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-07 09:48:09,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:48:09,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1438764105, now seen corresponding path program 1 times [2021-12-07 09:48:09,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:48:09,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655456419] [2021-12-07 09:48:09,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:48:09,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:48:09,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:48:09,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 09:48:09,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:48:09,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655456419] [2021-12-07 09:48:09,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655456419] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:48:09,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:48:09,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 09:48:09,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993412352] [2021-12-07 09:48:09,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:48:09,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 09:48:09,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:48:09,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 09:48:09,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-07 09:48:09,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:48:09,924 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:48:09,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 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) [2021-12-07 09:48:09,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:48:09,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:48:09,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:48:10,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:48:10,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 09:48:10,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 09:48:10,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-07 09:48:10,240 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-07 09:48:10,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:48:10,241 INFO L85 PathProgramCache]: Analyzing trace with hash 729859605, now seen corresponding path program 1 times [2021-12-07 09:48:10,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:48:10,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984152262] [2021-12-07 09:48:10,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:48:10,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:48:10,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:48:10,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 09:48:10,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:48:10,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984152262] [2021-12-07 09:48:10,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984152262] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:48:10,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:48:10,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 09:48:10,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193904407] [2021-12-07 09:48:10,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:48:10,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 09:48:10,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:48:10,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 09:48:10,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-07 09:48:10,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:48:10,549 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:48:10,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 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) [2021-12-07 09:48:10,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:48:10,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-12-07 09:48:10,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-12-07 09:48:10,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:48:10,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:48:10,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 09:48:10,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 09:48:10,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 09:48:10,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-07 09:48:10,782 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-07 09:48:10,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:48:10,784 INFO L85 PathProgramCache]: Analyzing trace with hash -312085578, now seen corresponding path program 1 times [2021-12-07 09:48:10,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:48:10,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158210639] [2021-12-07 09:48:10,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:48:10,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:48:10,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:48:11,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 09:48:11,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:48:11,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158210639] [2021-12-07 09:48:11,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158210639] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:48:11,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:48:11,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-07 09:48:11,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099897310] [2021-12-07 09:48:11,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:48:11,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-07 09:48:11,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:48:11,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-07 09:48:11,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-12-07 09:48:11,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:48:11,020 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:48:11,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 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) [2021-12-07 09:48:11,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:48:11,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-12-07 09:48:11,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-12-07 09:48:11,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-12-07 09:48:11,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:48:11,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:48:11,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 09:48:11,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 09:48:11,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 09:48:11,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 09:48:11,250 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-12-07 09:48:11,251 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2021-12-07 09:48:11,251 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2021-12-07 09:48:11,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-07 09:48:11,266 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-12-07 09:48:11,268 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-07 09:48:11,268 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-07 09:48:11,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 09:48:11 BasicIcfg [2021-12-07 09:48:11,271 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-07 09:48:11,272 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-07 09:48:11,272 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-07 09:48:11,272 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-07 09:48:11,273 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:48:08" (3/4) ... [2021-12-07 09:48:11,276 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-07 09:48:11,282 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-12-07 09:48:11,282 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-12-07 09:48:11,290 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-12-07 09:48:11,291 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-12-07 09:48:11,291 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-07 09:48:11,292 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-07 09:48:11,331 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ea4634-c864-4286-9c0e-79c47b941f66/bin/ugemcutter-YQQFZV6HUA/witness.graphml [2021-12-07 09:48:11,334 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-07 09:48:11,335 INFO L158 Benchmark]: Toolchain (without parser) took 4014.78ms. Allocated memory was 127.9MB in the beginning and 172.0MB in the end (delta: 44.0MB). Free memory was 97.0MB in the beginning and 62.5MB in the end (delta: 34.5MB). Peak memory consumption was 78.7MB. Max. memory is 16.1GB. [2021-12-07 09:48:11,335 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 96.5MB. Free memory is still 49.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 09:48:11,336 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.39ms. Allocated memory is still 127.9MB. Free memory was 96.7MB in the beginning and 101.3MB in the end (delta: -4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-07 09:48:11,336 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.70ms. Allocated memory is still 127.9MB. Free memory was 101.3MB in the beginning and 99.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 09:48:11,337 INFO L158 Benchmark]: Boogie Preprocessor took 19.93ms. Allocated memory is still 127.9MB. Free memory was 99.4MB in the beginning and 98.4MB in the end (delta: 972.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 09:48:11,337 INFO L158 Benchmark]: RCFGBuilder took 415.88ms. Allocated memory is still 127.9MB. Free memory was 98.4MB in the beginning and 87.5MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-07 09:48:11,338 INFO L158 Benchmark]: TraceAbstraction took 3204.94ms. Allocated memory was 127.9MB in the beginning and 172.0MB in the end (delta: 44.0MB). Free memory was 87.2MB in the beginning and 64.6MB in the end (delta: 22.6MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. [2021-12-07 09:48:11,338 INFO L158 Benchmark]: Witness Printer took 62.30ms. Allocated memory is still 172.0MB. Free memory was 64.6MB in the beginning and 62.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 09:48:11,347 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 96.5MB. Free memory is still 49.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.39ms. Allocated memory is still 127.9MB. Free memory was 96.7MB in the beginning and 101.3MB in the end (delta: -4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.70ms. Allocated memory is still 127.9MB. Free memory was 101.3MB in the beginning and 99.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.93ms. Allocated memory is still 127.9MB. Free memory was 99.4MB in the beginning and 98.4MB in the end (delta: 972.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 415.88ms. Allocated memory is still 127.9MB. Free memory was 98.4MB in the beginning and 87.5MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3204.94ms. Allocated memory was 127.9MB in the beginning and 172.0MB in the end (delta: 44.0MB). Free memory was 87.2MB in the beginning and 64.6MB in the end (delta: 22.6MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. * Witness Printer took 62.30ms. Allocated memory is still 172.0MB. Free memory was 64.6MB in the beginning and 62.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 781, positive: 757, positive conditional: 313, positive unconditional: 444, negative: 24, negative conditional: 22, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 759, positive: 757, positive conditional: 313, positive unconditional: 444, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 759, positive: 757, positive conditional: 313, positive unconditional: 444, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 759, positive: 757, positive conditional: 211, positive unconditional: 546, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 759, positive: 757, positive conditional: 56, positive unconditional: 701, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 759, positive: 757, positive conditional: 56, positive unconditional: 701, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 457, positive: 455, positive conditional: 3, positive unconditional: 452, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 457, positive: 455, positive conditional: 0, positive unconditional: 455, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 54, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 759, positive: 302, positive conditional: 53, positive unconditional: 249, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 457, unknown conditional: 3, unknown unconditional: 454] , Statistics on independence cache: Total cache size (in pairs): 457, Positive cache size: 455, Positive conditional cache size: 3, Positive unconditional cache size: 452, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Eliminated conditions: 155, Maximal queried relation: 0, Independence queries for same thread: 22 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 121, Number of trivial persistent sets: 103, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 446, positive: 444, positive conditional: 0, positive unconditional: 444, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 781, positive: 757, positive conditional: 313, positive unconditional: 444, negative: 24, negative conditional: 22, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 759, positive: 757, positive conditional: 313, positive unconditional: 444, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 759, positive: 757, positive conditional: 313, positive unconditional: 444, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 759, positive: 757, positive conditional: 211, positive unconditional: 546, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 759, positive: 757, positive conditional: 56, positive unconditional: 701, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 759, positive: 757, positive conditional: 56, positive unconditional: 701, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 457, positive: 455, positive conditional: 3, positive unconditional: 452, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 457, positive: 455, positive conditional: 0, positive unconditional: 455, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 54, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 759, positive: 302, positive conditional: 53, positive unconditional: 249, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 457, unknown conditional: 3, unknown unconditional: 454] , Statistics on independence cache: Total cache size (in pairs): 457, Positive cache size: 455, Positive conditional cache size: 3, Positive unconditional cache size: 452, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Eliminated conditions: 155, Maximal queried relation: 0, Independence queries for same thread: 22 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 76]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 101 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 3.1s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 1.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 311 NumberOfCodeBlocks, 311 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 306 ConstructedInterpolants, 0 QuantifiedInterpolants, 2724 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-12-07 09:48:11,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ea4634-c864-4286-9c0e-79c47b941f66/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-12-07 09:48:11,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ea4634-c864-4286-9c0e-79c47b941f66/bin/ugemcutter-YQQFZV6HUA/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