./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro --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 36105814f7d14243ca8b55776979fcada1717aa30ae4c259b302358b1f244a48 --- 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-8393723 [2022-11-18 19:32:40,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:32:40,944 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:32:40,979 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:32:40,980 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:32:40,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:32:40,989 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:32:40,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:32:40,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:32:41,005 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:32:41,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:32:41,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:32:41,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:32:41,015 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:32:41,017 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:32:41,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:32:41,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:32:41,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:32:41,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:32:41,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:32:41,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:32:41,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:32:41,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:32:41,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:32:41,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:32:41,060 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:32:41,060 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:32:41,063 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:32:41,064 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:32:41,065 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:32:41,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:32:41,068 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:32:41,070 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:32:41,075 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:32:41,076 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:32:41,077 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:32:41,078 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:32:41,078 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:32:41,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:32:41,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:32:41,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:32:41,082 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-18 19:32:41,136 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:32:41,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:32:41,138 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:32:41,138 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:32:41,139 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:32:41,140 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:32:41,141 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:32:41,141 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:32:41,142 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:32:41,142 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:32:41,143 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:32:41,144 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:32:41,144 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:32:41,144 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:32:41,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:32:41,145 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 19:32:41,145 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 19:32:41,146 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 19:32:41,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:32:41,146 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 19:32:41,147 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:32:41,147 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:32:41,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:32:41,148 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:32:41,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:32:41,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:32:41,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:32:41,149 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:32:41,149 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:32:41,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:32:41,150 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_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36105814f7d14243ca8b55776979fcada1717aa30ae4c259b302358b1f244a48 [2022-11-18 19:32:41,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:32:41,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:32:41,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:32:41,557 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:32:41,558 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:32:41,560 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2022-11-18 19:32:41,640 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/data/3ad12f272/8928aac432ec4b118912ea3a2eff8b6e/FLAG6724eb27b [2022-11-18 19:32:42,407 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:32:42,408 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2022-11-18 19:32:42,438 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/data/3ad12f272/8928aac432ec4b118912ea3a2eff8b6e/FLAG6724eb27b [2022-11-18 19:32:42,624 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/data/3ad12f272/8928aac432ec4b118912ea3a2eff8b6e [2022-11-18 19:32:42,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:32:42,629 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:32:42,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:32:42,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:32:42,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:32:42,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:32:42" (1/1) ... [2022-11-18 19:32:42,639 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3715181e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:42, skipping insertion in model container [2022-11-18 19:32:42,639 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:32:42" (1/1) ... [2022-11-18 19:32:42,649 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:32:42,690 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:32:42,961 WARN L234 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_55d3591a-2dd5-47eb-9ed8-220586f664b8/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i[1098,1111] [2022-11-18 19:32:43,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:32:43,289 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:32:43,307 WARN L234 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_55d3591a-2dd5-47eb-9ed8-220586f664b8/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i[1098,1111] [2022-11-18 19:32:43,361 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:32:43,413 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:32:43,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:43 WrapperNode [2022-11-18 19:32:43,416 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:32:43,418 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:32:43,418 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:32:43,419 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:32:43,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:43" (1/1) ... [2022-11-18 19:32:43,455 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:43" (1/1) ... [2022-11-18 19:32:43,484 INFO L138 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-11-18 19:32:43,484 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:32:43,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:32:43,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:32:43,485 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:32:43,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:43" (1/1) ... [2022-11-18 19:32:43,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:43" (1/1) ... [2022-11-18 19:32:43,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:43" (1/1) ... [2022-11-18 19:32:43,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:43" (1/1) ... [2022-11-18 19:32:43,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:43" (1/1) ... [2022-11-18 19:32:43,508 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:43" (1/1) ... [2022-11-18 19:32:43,510 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:43" (1/1) ... [2022-11-18 19:32:43,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:43" (1/1) ... [2022-11-18 19:32:43,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:32:43,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:32:43,517 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:32:43,517 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:32:43,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:43" (1/1) ... [2022-11-18 19:32:43,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:32:43,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:32:43,578 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:32:43,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:32:43,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:32:43,633 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 19:32:43,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:32:43,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:32:43,634 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 19:32:43,634 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 19:32:43,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:32:43,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:32:43,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:32:43,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:32:43,637 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 19:32:43,840 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:32:43,858 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:32:44,187 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:32:44,197 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:32:44,198 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 19:32:44,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:32:44 BoogieIcfgContainer [2022-11-18 19:32:44,201 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:32:44,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:32:44,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:32:44,209 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:32:44,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:32:42" (1/3) ... [2022-11-18 19:32:44,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac7f03c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:32:44, skipping insertion in model container [2022-11-18 19:32:44,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:43" (2/3) ... [2022-11-18 19:32:44,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac7f03c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:32:44, skipping insertion in model container [2022-11-18 19:32:44,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:32:44" (3/3) ... [2022-11-18 19:32:44,214 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2022-11-18 19:32:44,240 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:32:44,241 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-18 19:32:44,241 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:32:44,327 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 19:32:44,371 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-18 19:32:44,391 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 84 transitions, 173 flow [2022-11-18 19:32:44,395 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 84 transitions, 173 flow [2022-11-18 19:32:44,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 84 transitions, 173 flow [2022-11-18 19:32:44,460 INFO L130 PetriNetUnfolder]: 2/83 cut-off events. [2022-11-18 19:32:44,461 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:32:44,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2022-11-18 19:32:44,469 INFO L119 LiptonReduction]: Number of co-enabled transitions 680 [2022-11-18 19:32:49,266 INFO L134 LiptonReduction]: Checked pairs total: 1745 [2022-11-18 19:32:49,266 INFO L136 LiptonReduction]: Total number of compositions: 77 [2022-11-18 19:32:49,283 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 24 transitions, 53 flow [2022-11-18 19:32:49,319 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 76 states, 72 states have (on average 1.9722222222222223) internal successors, (142), 75 states have internal predecessors, (142), 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) [2022-11-18 19:32:49,352 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:32:49,362 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=FINITE_AUTOMATA, 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;@2932081c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:32:49,363 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-11-18 19:32:49,367 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 72 states have (on average 1.9722222222222223) internal successors, (142), 75 states have internal predecessors, (142), 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) [2022-11-18 19:32:49,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-18 19:32:49,383 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:32:49,384 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-18 19:32:49,385 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-18 19:32:49,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:32:49,397 INFO L85 PathProgramCache]: Analyzing trace with hash 295, now seen corresponding path program 1 times [2022-11-18 19:32:49,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:32:49,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18318615] [2022-11-18 19:32:49,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:49,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:32:49,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:49,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:32:49,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:32:49,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18318615] [2022-11-18 19:32:49,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18318615] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:32:49,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:32:49,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-18 19:32:49,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770061336] [2022-11-18 19:32:49,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:32:49,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 19:32:49,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:32:49,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 19:32:49,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:32:49,596 INFO L87 Difference]: Start difference. First operand has 76 states, 72 states have (on average 1.9722222222222223) internal successors, (142), 75 states have internal predecessors, (142), 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) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-18 19:32:49,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:32:49,660 INFO L93 Difference]: Finished difference Result 74 states and 134 transitions. [2022-11-18 19:32:49,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 19:32:49,663 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) Word has length 1 [2022-11-18 19:32:49,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:32:49,675 INFO L225 Difference]: With dead ends: 74 [2022-11-18 19:32:49,675 INFO L226 Difference]: Without dead ends: 74 [2022-11-18 19:32:49,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:32:49,683 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:32:49,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:32:49,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-18 19:32:49,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-11-18 19:32:49,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 72 states have (on average 1.8611111111111112) internal successors, (134), 73 states have internal predecessors, (134), 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) [2022-11-18 19:32:49,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 134 transitions. [2022-11-18 19:32:49,762 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 134 transitions. Word has length 1 [2022-11-18 19:32:49,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:32:49,762 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 134 transitions. [2022-11-18 19:32:49,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-18 19:32:49,765 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 134 transitions. [2022-11-18 19:32:49,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 19:32:49,766 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:32:49,766 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 19:32:49,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:32:49,767 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-18 19:32:49,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:32:49,768 INFO L85 PathProgramCache]: Analyzing trace with hash 7896268, now seen corresponding path program 1 times [2022-11-18 19:32:49,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:32:49,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976990945] [2022-11-18 19:32:49,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:49,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:32:49,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:50,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:32:50,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:32:50,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976990945] [2022-11-18 19:32:50,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976990945] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:32:50,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:32:50,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:32:50,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028858311] [2022-11-18 19:32:50,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:32:50,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:32:50,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:32:50,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:32:50,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:32:50,185 INFO L87 Difference]: Start difference. First operand 74 states and 134 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-18 19:32:50,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:32:50,289 INFO L93 Difference]: Finished difference Result 113 states and 197 transitions. [2022-11-18 19:32:50,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:32:50,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2022-11-18 19:32:50,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:32:50,293 INFO L225 Difference]: With dead ends: 113 [2022-11-18 19:32:50,293 INFO L226 Difference]: Without dead ends: 113 [2022-11-18 19:32:50,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:32:50,295 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 29 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:32:50,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 17 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:32:50,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-11-18 19:32:50,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 89. [2022-11-18 19:32:50,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 87 states have (on average 1.839080459770115) internal successors, (160), 88 states have internal predecessors, (160), 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) [2022-11-18 19:32:50,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 160 transitions. [2022-11-18 19:32:50,307 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 160 transitions. Word has length 6 [2022-11-18 19:32:50,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:32:50,308 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 160 transitions. [2022-11-18 19:32:50,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-18 19:32:50,309 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 160 transitions. [2022-11-18 19:32:50,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 19:32:50,309 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:32:50,310 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:32:50,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:32:50,310 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-18 19:32:50,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:32:50,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1001594549, now seen corresponding path program 1 times [2022-11-18 19:32:50,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:32:50,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69132517] [2022-11-18 19:32:50,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:50,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:32:50,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:50,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:32:50,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:32:50,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69132517] [2022-11-18 19:32:50,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69132517] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:32:50,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:32:50,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 19:32:50,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762622034] [2022-11-18 19:32:50,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:32:50,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:32:50,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:32:50,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:32:50,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:32:50,451 INFO L87 Difference]: Start difference. First operand 89 states and 160 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-11-18 19:32:50,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:32:50,476 INFO L93 Difference]: Finished difference Result 83 states and 149 transitions. [2022-11-18 19:32:50,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:32:50,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) Word has length 8 [2022-11-18 19:32:50,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:32:50,478 INFO L225 Difference]: With dead ends: 83 [2022-11-18 19:32:50,478 INFO L226 Difference]: Without dead ends: 50 [2022-11-18 19:32:50,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:32:50,480 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 11 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:32:50,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 4 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:32:50,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-18 19:32:50,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-18 19:32:50,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.653061224489796) internal successors, (81), 49 states have internal predecessors, (81), 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) [2022-11-18 19:32:50,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 81 transitions. [2022-11-18 19:32:50,486 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 81 transitions. Word has length 8 [2022-11-18 19:32:50,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:32:50,487 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 81 transitions. [2022-11-18 19:32:50,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-11-18 19:32:50,487 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 81 transitions. [2022-11-18 19:32:50,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 19:32:50,488 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:32:50,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:32:50,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:32:50,489 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-18 19:32:50,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:32:50,490 INFO L85 PathProgramCache]: Analyzing trace with hash -157632412, now seen corresponding path program 1 times [2022-11-18 19:32:50,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:32:50,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144035603] [2022-11-18 19:32:50,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:50,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:32:50,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:32:50,539 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:32:50,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:32:50,598 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:32:50,599 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 19:32:50,600 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2022-11-18 19:32:50,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2022-11-18 19:32:50,606 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 5 remaining) [2022-11-18 19:32:50,610 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2022-11-18 19:32:50,610 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-11-18 19:32:50,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:32:50,613 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-18 19:32:50,620 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 19:32:50,620 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:32:50,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:32:50 BasicIcfg [2022-11-18 19:32:50,661 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:32:50,663 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:32:50,663 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:32:50,664 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:32:50,664 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:32:44" (3/4) ... [2022-11-18 19:32:50,668 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 19:32:50,668 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:32:50,671 INFO L158 Benchmark]: Toolchain (without parser) took 8039.91ms. Allocated memory was 98.6MB in the beginning and 146.8MB in the end (delta: 48.2MB). Free memory was 67.1MB in the beginning and 74.9MB in the end (delta: -7.9MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2022-11-18 19:32:50,672 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 98.6MB. Free memory was 55.7MB in the beginning and 55.6MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:32:50,672 INFO L158 Benchmark]: CACSL2BoogieTranslator took 785.77ms. Allocated memory is still 98.6MB. Free memory was 66.8MB in the beginning and 66.4MB in the end (delta: 434.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 19:32:50,673 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.50ms. Allocated memory is still 98.6MB. Free memory was 66.4MB in the beginning and 64.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:32:50,673 INFO L158 Benchmark]: Boogie Preprocessor took 29.60ms. Allocated memory is still 98.6MB. Free memory was 64.3MB in the beginning and 62.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:32:50,673 INFO L158 Benchmark]: RCFGBuilder took 685.65ms. Allocated memory is still 98.6MB. Free memory was 62.9MB in the beginning and 49.5MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 19:32:50,674 INFO L158 Benchmark]: TraceAbstraction took 6457.38ms. Allocated memory was 98.6MB in the beginning and 146.8MB in the end (delta: 48.2MB). Free memory was 48.9MB in the beginning and 76.0MB in the end (delta: -27.1MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2022-11-18 19:32:50,674 INFO L158 Benchmark]: Witness Printer took 5.29ms. Allocated memory is still 146.8MB. Free memory was 76.0MB in the beginning and 74.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:32:50,677 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 98.6MB. Free memory was 55.7MB in the beginning and 55.6MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 785.77ms. Allocated memory is still 98.6MB. Free memory was 66.8MB in the beginning and 66.4MB in the end (delta: 434.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.50ms. Allocated memory is still 98.6MB. Free memory was 66.4MB in the beginning and 64.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.60ms. Allocated memory is still 98.6MB. Free memory was 64.3MB in the beginning and 62.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 685.65ms. Allocated memory is still 98.6MB. Free memory was 62.9MB in the beginning and 49.5MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 6457.38ms. Allocated memory was 98.6MB in the beginning and 146.8MB in the end (delta: 48.2MB). Free memory was 48.9MB in the beginning and 76.0MB in the end (delta: -27.1MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. * Witness Printer took 5.29ms. Allocated memory is still 146.8MB. Free memory was 76.0MB in the beginning and 74.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.9s, 86 PlacesBefore, 26 PlacesAfterwards, 84 TransitionsBefore, 24 TransitionsAfterwards, 680 CoEnabledTransitionPairs, 6 FixpointIterations, 43 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 0 ChoiceCompositions, 77 TotalNumberOfCompositions, 1745 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 786, independent: 640, independent conditional: 0, independent unconditional: 640, dependent: 146, dependent conditional: 0, dependent unconditional: 146, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 443, independent: 405, independent conditional: 0, independent unconditional: 405, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 443, independent: 384, independent conditional: 0, independent unconditional: 384, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 59, independent: 21, independent conditional: 0, independent unconditional: 21, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 303, independent: 98, independent conditional: 0, independent unconditional: 98, dependent: 205, dependent conditional: 0, dependent unconditional: 205, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 786, independent: 235, independent conditional: 0, independent unconditional: 235, dependent: 108, dependent conditional: 0, dependent unconditional: 108, unknown: 443, unknown conditional: 0, unknown unconditional: 443] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 40, Positive conditional cache size: 0, Positive unconditional cache size: 40, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 int g = 42; [L694] 0 int r = __VERIFIER_nondet_int(); [L695] 0 int t; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, B={4:0}, g=42, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, r=1] [L700] COND TRUE 0 \read(r) VAL [A={3:0}, arg={0:0}, B={4:0}, g=42, id={5:0}, r=1] [L701] 0 g = 17 VAL [A={3:0}, arg={0:0}, B={4:0}, g=17, id={5:0}, r=1] [L705] 0 t = g [L706] CALL 0 __VERIFIER_assert(!(t == 17)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, B={4:0}, cond=0, g=17] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 95 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 6.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74 IncrementalHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 15 mSDtfsCounter, 74 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=2, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 24 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 58 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-18 19:32:50,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro --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 36105814f7d14243ca8b55776979fcada1717aa30ae4c259b302358b1f244a48 --- 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-8393723 [2022-11-18 19:32:53,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:32:53,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:32:53,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:32:53,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:32:53,626 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:32:53,630 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:32:53,637 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:32:53,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:32:53,643 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:32:53,644 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:32:53,645 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:32:53,646 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:32:53,647 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:32:53,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:32:53,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:32:53,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:32:53,657 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:32:53,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:32:53,672 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:32:53,674 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:32:53,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:32:53,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:32:53,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:32:53,682 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:32:53,683 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:32:53,684 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:32:53,685 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:32:53,686 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:32:53,687 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:32:53,687 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:32:53,689 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:32:53,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:32:53,691 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:32:53,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:32:53,693 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:32:53,694 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:32:53,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:32:53,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:32:53,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:32:53,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:32:53,698 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-18 19:32:53,724 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:32:53,724 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:32:53,725 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:32:53,725 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:32:53,726 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:32:53,726 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:32:53,727 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:32:53,728 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:32:53,728 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:32:53,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:32:53,729 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:32:53,729 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:32:53,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:32:53,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:32:53,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:32:53,731 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 19:32:53,731 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 19:32:53,731 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 19:32:53,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:32:53,732 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 19:32:53,732 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 19:32:53,733 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 19:32:53,733 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:32:53,734 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:32:53,734 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:32:53,734 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:32:53,735 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:32:53,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:32:53,736 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:32:53,736 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:32:53,736 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 19:32:53,737 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 19:32:53,737 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 19:32:53,737 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36105814f7d14243ca8b55776979fcada1717aa30ae4c259b302358b1f244a48 [2022-11-18 19:32:54,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:32:54,244 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:32:54,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:32:54,249 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:32:54,250 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:32:54,252 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2022-11-18 19:32:54,338 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/data/4b07f2295/2cd9940d01ff4e719f7db691e2a7420b/FLAG2eef724d0 [2022-11-18 19:32:55,163 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:32:55,169 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2022-11-18 19:32:55,193 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/data/4b07f2295/2cd9940d01ff4e719f7db691e2a7420b/FLAG2eef724d0 [2022-11-18 19:32:55,325 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/data/4b07f2295/2cd9940d01ff4e719f7db691e2a7420b [2022-11-18 19:32:55,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:32:55,333 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:32:55,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:32:55,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:32:55,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:32:55,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:32:55" (1/1) ... [2022-11-18 19:32:55,348 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c50eb73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:55, skipping insertion in model container [2022-11-18 19:32:55,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:32:55" (1/1) ... [2022-11-18 19:32:55,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:32:55,429 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:32:55,738 WARN L234 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_55d3591a-2dd5-47eb-9ed8-220586f664b8/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i[1098,1111] [2022-11-18 19:32:56,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:32:56,115 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:32:56,137 WARN L234 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_55d3591a-2dd5-47eb-9ed8-220586f664b8/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i[1098,1111] [2022-11-18 19:32:56,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:32:56,241 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:32:56,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:56 WrapperNode [2022-11-18 19:32:56,241 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:32:56,243 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:32:56,243 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:32:56,244 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:32:56,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:56" (1/1) ... [2022-11-18 19:32:56,290 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:56" (1/1) ... [2022-11-18 19:32:56,318 INFO L138 Inliner]: procedures = 167, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-11-18 19:32:56,318 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:32:56,319 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:32:56,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:32:56,320 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:32:56,331 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:56" (1/1) ... [2022-11-18 19:32:56,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:56" (1/1) ... [2022-11-18 19:32:56,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:56" (1/1) ... [2022-11-18 19:32:56,336 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:56" (1/1) ... [2022-11-18 19:32:56,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:56" (1/1) ... [2022-11-18 19:32:56,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:56" (1/1) ... [2022-11-18 19:32:56,349 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:56" (1/1) ... [2022-11-18 19:32:56,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:56" (1/1) ... [2022-11-18 19:32:56,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:32:56,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:32:56,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:32:56,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:32:56,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:56" (1/1) ... [2022-11-18 19:32:56,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:32:56,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:32:56,395 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:32:56,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:32:56,484 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 19:32:56,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:32:56,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:32:56,486 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 19:32:56,487 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 19:32:56,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:32:56,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-18 19:32:56,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-18 19:32:56,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-18 19:32:56,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:32:56,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:32:56,497 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 19:32:56,801 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:32:56,804 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:32:57,161 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:32:57,171 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:32:57,182 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 19:32:57,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:32:57 BoogieIcfgContainer [2022-11-18 19:32:57,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:32:57,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:32:57,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:32:57,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:32:57,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:32:55" (1/3) ... [2022-11-18 19:32:57,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26329456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:32:57, skipping insertion in model container [2022-11-18 19:32:57,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:56" (2/3) ... [2022-11-18 19:32:57,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26329456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:32:57, skipping insertion in model container [2022-11-18 19:32:57,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:32:57" (3/3) ... [2022-11-18 19:32:57,196 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2022-11-18 19:32:57,220 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:32:57,221 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-18 19:32:57,221 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:32:57,297 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 19:32:57,340 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-18 19:32:57,360 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 84 transitions, 173 flow [2022-11-18 19:32:57,364 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 84 transitions, 173 flow [2022-11-18 19:32:57,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 84 transitions, 173 flow [2022-11-18 19:32:57,448 INFO L130 PetriNetUnfolder]: 2/83 cut-off events. [2022-11-18 19:32:57,448 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:32:57,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2022-11-18 19:32:57,460 INFO L119 LiptonReduction]: Number of co-enabled transitions 680 [2022-11-18 19:33:09,274 INFO L134 LiptonReduction]: Checked pairs total: 1888 [2022-11-18 19:33:09,275 INFO L136 LiptonReduction]: Total number of compositions: 74 [2022-11-18 19:33:09,288 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 22 transitions, 49 flow [2022-11-18 19:33:09,320 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 70 states, 66 states have (on average 1.893939393939394) internal successors, (125), 69 states have internal predecessors, (125), 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) [2022-11-18 19:33:09,351 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:33:09,363 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=FINITE_AUTOMATA, 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;@36dded88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:33:09,363 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-11-18 19:33:09,368 INFO L276 IsEmpty]: Start isEmpty. Operand has 70 states, 66 states have (on average 1.893939393939394) internal successors, (125), 69 states have internal predecessors, (125), 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) [2022-11-18 19:33:09,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-18 19:33:09,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:33:09,375 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-18 19:33:09,376 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-18 19:33:09,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:09,390 INFO L85 PathProgramCache]: Analyzing trace with hash 291, now seen corresponding path program 1 times [2022-11-18 19:33:09,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:33:09,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2069147233] [2022-11-18 19:33:09,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:09,411 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:33:09,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:33:09,422 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:33:09,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-18 19:33:09,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:09,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-18 19:33:09,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:33:09,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:33:09,524 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:33:09,525 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:33:09,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2069147233] [2022-11-18 19:33:09,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2069147233] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:33:09,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:33:09,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-18 19:33:09,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794992742] [2022-11-18 19:33:09,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:33:09,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 19:33:09,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:33:09,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 19:33:09,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:33:09,566 INFO L87 Difference]: Start difference. First operand has 70 states, 66 states have (on average 1.893939393939394) internal successors, (125), 69 states have internal predecessors, (125), 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) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-18 19:33:09,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:33:09,623 INFO L93 Difference]: Finished difference Result 68 states and 123 transitions. [2022-11-18 19:33:09,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 19:33:09,626 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) Word has length 1 [2022-11-18 19:33:09,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:33:09,636 INFO L225 Difference]: With dead ends: 68 [2022-11-18 19:33:09,637 INFO L226 Difference]: Without dead ends: 68 [2022-11-18 19:33:09,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:33:09,642 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:33:09,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:33:09,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-18 19:33:09,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-11-18 19:33:09,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 66 states have (on average 1.8636363636363635) internal successors, (123), 67 states have internal predecessors, (123), 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) [2022-11-18 19:33:09,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 123 transitions. [2022-11-18 19:33:09,689 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 123 transitions. Word has length 1 [2022-11-18 19:33:09,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:33:09,690 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 123 transitions. [2022-11-18 19:33:09,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-18 19:33:09,691 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 123 transitions. [2022-11-18 19:33:09,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 19:33:09,691 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:33:09,692 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 19:33:09,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:33:09,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:33:09,906 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-18 19:33:09,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:09,907 INFO L85 PathProgramCache]: Analyzing trace with hash -49361041, now seen corresponding path program 1 times [2022-11-18 19:33:09,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:33:09,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2047088540] [2022-11-18 19:33:09,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:09,909 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:33:09,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:33:09,910 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:33:09,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-18 19:33:10,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:10,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:33:10,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:33:10,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:33:10,105 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:33:10,106 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:33:10,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2047088540] [2022-11-18 19:33:10,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2047088540] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:33:10,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:33:10,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:33:10,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812651184] [2022-11-18 19:33:10,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:33:10,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:33:10,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:33:10,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:33:10,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:33:10,121 INFO L87 Difference]: Start difference. First operand 68 states and 123 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-18 19:33:10,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:33:10,272 INFO L93 Difference]: Finished difference Result 107 states and 182 transitions. [2022-11-18 19:33:10,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:33:10,274 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2022-11-18 19:33:10,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:33:10,281 INFO L225 Difference]: With dead ends: 107 [2022-11-18 19:33:10,282 INFO L226 Difference]: Without dead ends: 107 [2022-11-18 19:33:10,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:33:10,286 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 21 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:33:10,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 15 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:33:10,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-18 19:33:10,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 83. [2022-11-18 19:33:10,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 81 states have (on average 1.8395061728395061) internal successors, (149), 82 states have internal predecessors, (149), 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) [2022-11-18 19:33:10,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 149 transitions. [2022-11-18 19:33:10,318 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 149 transitions. Word has length 6 [2022-11-18 19:33:10,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:33:10,319 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 149 transitions. [2022-11-18 19:33:10,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-18 19:33:10,323 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 149 transitions. [2022-11-18 19:33:10,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 19:33:10,324 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:33:10,324 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:33:10,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-11-18 19:33:10,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:33:10,538 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-18 19:33:10,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:10,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1530190561, now seen corresponding path program 1 times [2022-11-18 19:33:10,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:33:10,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1703899778] [2022-11-18 19:33:10,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:10,541 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:33:10,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:33:10,542 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:33:10,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-18 19:33:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:10,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:33:10,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:33:10,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:33:10,768 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:33:10,769 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:33:10,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1703899778] [2022-11-18 19:33:10,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1703899778] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:33:10,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:33:10,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 19:33:10,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106230291] [2022-11-18 19:33:10,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:33:10,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:33:10,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:33:10,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:33:10,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:33:10,791 INFO L87 Difference]: Start difference. First operand 83 states and 149 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-11-18 19:33:10,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:33:10,817 INFO L93 Difference]: Finished difference Result 84 states and 150 transitions. [2022-11-18 19:33:10,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:33:10,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) Word has length 7 [2022-11-18 19:33:10,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:33:10,820 INFO L225 Difference]: With dead ends: 84 [2022-11-18 19:33:10,820 INFO L226 Difference]: Without dead ends: 84 [2022-11-18 19:33:10,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:33:10,822 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:33:10,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 13 Unchecked, 0.0s Time] [2022-11-18 19:33:10,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-11-18 19:33:10,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2022-11-18 19:33:10,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 82 states have (on average 1.829268292682927) internal successors, (150), 83 states have internal predecessors, (150), 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) [2022-11-18 19:33:10,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 150 transitions. [2022-11-18 19:33:10,835 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 150 transitions. Word has length 7 [2022-11-18 19:33:10,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:33:10,835 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 150 transitions. [2022-11-18 19:33:10,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-11-18 19:33:10,836 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 150 transitions. [2022-11-18 19:33:10,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 19:33:10,837 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:33:10,837 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:33:10,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-11-18 19:33:11,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:33:11,052 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-18 19:33:11,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:11,052 INFO L85 PathProgramCache]: Analyzing trace with hash -339358935, now seen corresponding path program 1 times [2022-11-18 19:33:11,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:33:11,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2018596262] [2022-11-18 19:33:11,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:11,053 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:33:11,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:33:11,056 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:33:11,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-18 19:33:11,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:11,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:33:11,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:33:11,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-11-18 19:33:11,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:33:11,235 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:33:11,236 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:33:11,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2018596262] [2022-11-18 19:33:11,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2018596262] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:33:11,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:33:11,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:33:11,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122839097] [2022-11-18 19:33:11,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:33:11,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:33:11,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:33:11,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:33:11,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:33:11,242 INFO L87 Difference]: Start difference. First operand 84 states and 150 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-18 19:33:11,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:33:11,348 INFO L93 Difference]: Finished difference Result 77 states and 119 transitions. [2022-11-18 19:33:11,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:33:11,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) Word has length 8 [2022-11-18 19:33:11,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:33:11,350 INFO L225 Difference]: With dead ends: 77 [2022-11-18 19:33:11,350 INFO L226 Difference]: Without dead ends: 77 [2022-11-18 19:33:11,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:33:11,352 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 5 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:33:11,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:33:11,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-18 19:33:11,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 65. [2022-11-18 19:33:11,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 63 states have (on average 1.619047619047619) internal successors, (102), 64 states have internal predecessors, (102), 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) [2022-11-18 19:33:11,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 102 transitions. [2022-11-18 19:33:11,373 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 102 transitions. Word has length 8 [2022-11-18 19:33:11,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:33:11,373 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 102 transitions. [2022-11-18 19:33:11,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-18 19:33:11,374 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 102 transitions. [2022-11-18 19:33:11,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 19:33:11,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:33:11,378 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:33:11,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-18 19:33:11,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:33:11,593 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-18 19:33:11,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:11,594 INFO L85 PathProgramCache]: Analyzing trace with hash -191267595, now seen corresponding path program 2 times [2022-11-18 19:33:11,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:33:11,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1034513493] [2022-11-18 19:33:11,595 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:33:11,595 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:33:11,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:33:11,597 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:33:11,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-18 19:33:11,707 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 19:33:11,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:33:11,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 19:33:11,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:33:11,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-11-18 19:33:11,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-18 19:33:11,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-18 19:33:11,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:33:11,911 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:33:11,911 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:33:11,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1034513493] [2022-11-18 19:33:11,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1034513493] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:33:11,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:33:11,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:33:11,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639376799] [2022-11-18 19:33:11,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:33:11,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:33:11,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:33:11,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:33:11,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:33:11,915 INFO L87 Difference]: Start difference. First operand 65 states and 102 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-11-18 19:33:11,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:33:11,997 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2022-11-18 19:33:11,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:33:11,998 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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) Word has length 8 [2022-11-18 19:33:11,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:33:11,999 INFO L225 Difference]: With dead ends: 35 [2022-11-18 19:33:11,999 INFO L226 Difference]: Without dead ends: 32 [2022-11-18 19:33:11,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:33:12,000 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:33:12,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 1 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:33:12,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-18 19:33:12,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-11-18 19:33:12,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 31 states have internal predecessors, (33), 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) [2022-11-18 19:33:12,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2022-11-18 19:33:12,004 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 8 [2022-11-18 19:33:12,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:33:12,004 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2022-11-18 19:33:12,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-11-18 19:33:12,005 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2022-11-18 19:33:12,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 19:33:12,005 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:33:12,005 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:33:12,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-18 19:33:12,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:33:12,222 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-18 19:33:12,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:12,222 INFO L85 PathProgramCache]: Analyzing trace with hash -808138078, now seen corresponding path program 1 times [2022-11-18 19:33:12,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:33:12,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737962465] [2022-11-18 19:33:12,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:12,223 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:33:12,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:33:12,225 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:33:12,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-18 19:33:12,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:33:12,338 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:33:12,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:33:12,401 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-18 19:33:12,401 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 19:33:12,403 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2022-11-18 19:33:12,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2022-11-18 19:33:12,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 5 remaining) [2022-11-18 19:33:12,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2022-11-18 19:33:12,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-11-18 19:33:12,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-18 19:33:12,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:33:12,609 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2022-11-18 19:33:12,613 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 19:33:12,614 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:33:12,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:33:12 BasicIcfg [2022-11-18 19:33:12,642 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:33:12,643 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:33:12,643 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:33:12,643 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:33:12,644 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:32:57" (3/4) ... [2022-11-18 19:33:12,647 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 19:33:12,648 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:33:12,649 INFO L158 Benchmark]: Toolchain (without parser) took 17315.86ms. Allocated memory was 75.5MB in the beginning and 96.5MB in the end (delta: 21.0MB). Free memory was 57.8MB in the beginning and 69.8MB in the end (delta: -11.9MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2022-11-18 19:33:12,649 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 75.5MB. Free memory was 57.0MB in the beginning and 57.0MB in the end (delta: 55.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:33:12,650 INFO L158 Benchmark]: CACSL2BoogieTranslator took 903.43ms. Allocated memory is still 75.5MB. Free memory was 57.5MB in the beginning and 48.6MB in the end (delta: 8.9MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2022-11-18 19:33:12,650 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.85ms. Allocated memory is still 75.5MB. Free memory was 48.4MB in the beginning and 46.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:33:12,650 INFO L158 Benchmark]: Boogie Preprocessor took 35.39ms. Allocated memory is still 75.5MB. Free memory was 46.4MB in the beginning and 44.8MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 19:33:12,651 INFO L158 Benchmark]: RCFGBuilder took 829.87ms. Allocated memory is still 75.5MB. Free memory was 44.8MB in the beginning and 57.1MB in the end (delta: -12.3MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2022-11-18 19:33:12,651 INFO L158 Benchmark]: TraceAbstraction took 15454.25ms. Allocated memory was 75.5MB in the beginning and 96.5MB in the end (delta: 21.0MB). Free memory was 56.5MB in the beginning and 70.6MB in the end (delta: -14.1MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2022-11-18 19:33:12,652 INFO L158 Benchmark]: Witness Printer took 5.36ms. Allocated memory is still 96.5MB. Free memory was 70.6MB in the beginning and 69.8MB in the end (delta: 860.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:33:12,654 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 75.5MB. Free memory was 57.0MB in the beginning and 57.0MB in the end (delta: 55.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 903.43ms. Allocated memory is still 75.5MB. Free memory was 57.5MB in the beginning and 48.6MB in the end (delta: 8.9MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.85ms. Allocated memory is still 75.5MB. Free memory was 48.4MB in the beginning and 46.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.39ms. Allocated memory is still 75.5MB. Free memory was 46.4MB in the beginning and 44.8MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 829.87ms. Allocated memory is still 75.5MB. Free memory was 44.8MB in the beginning and 57.1MB in the end (delta: -12.3MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * TraceAbstraction took 15454.25ms. Allocated memory was 75.5MB in the beginning and 96.5MB in the end (delta: 21.0MB). Free memory was 56.5MB in the beginning and 70.6MB in the end (delta: -14.1MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. * Witness Printer took 5.36ms. Allocated memory is still 96.5MB. Free memory was 70.6MB in the beginning and 69.8MB in the end (delta: 860.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.9s, 86 PlacesBefore, 25 PlacesAfterwards, 84 TransitionsBefore, 22 TransitionsAfterwards, 680 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 74 TotalNumberOfCompositions, 1888 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 889, independent: 710, independent conditional: 0, independent unconditional: 710, dependent: 179, dependent conditional: 0, dependent unconditional: 179, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 469, independent: 422, independent conditional: 0, independent unconditional: 422, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 469, independent: 395, independent conditional: 0, independent unconditional: 395, dependent: 74, dependent conditional: 0, dependent unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 74, independent: 27, independent conditional: 0, independent unconditional: 27, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 544, independent: 176, independent conditional: 0, independent unconditional: 176, dependent: 369, dependent conditional: 0, dependent unconditional: 369, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 889, independent: 288, independent conditional: 0, independent unconditional: 288, dependent: 132, dependent conditional: 0, dependent unconditional: 132, unknown: 469, unknown conditional: 0, unknown unconditional: 469] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 42, Positive conditional cache size: 0, Positive unconditional cache size: 42, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 int g = 42; [L694] 0 int r = __VERIFIER_nondet_int(); [L695] 0 int t; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, B={4:0}, g=42, id={7:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0] [L700] COND TRUE 0 \read(r) VAL [A={3:0}, arg={0:0}, B={4:0}, g=42, id={7:0}, r=2] [L701] 0 g = 17 VAL [A={3:0}, arg={0:0}, B={4:0}, g=17, id={7:0}, r=2] [L705] 0 t = g [L706] CALL 0 __VERIFIER_assert(!(t == 17)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, B={4:0}, cond=0, g=17] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 95 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 15.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 51 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 13 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 124 IncrementalHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 17 mSDtfsCounter, 124 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 36 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 25 ConstructedInterpolants, 6 QuantifiedInterpolants, 184 SizeOfPredicates, 4 NumberOfNonLiveVariables, 305 ConjunctsInSsa, 24 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-18 19:33:12,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55d3591a-2dd5-47eb-9ed8-220586f664b8/bin/uautomizer-TMbwUNV5ro/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: UNKNOWN: Overapproximated counterexample