./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-races/race-1_2-join.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_6c4062a6-d917-4683-93bb-9ba421f158c1/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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_6c4062a6-d917-4683-93bb-9ba421f158c1/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-1_2-join.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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_6c4062a6-d917-4683-93bb-9ba421f158c1/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 fd4c3d19582748238e9ca587d159d6e8fc23db581cd4de03be73dc785992e03f --- 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 20:55:14,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:55:14,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:55:14,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:55:14,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:55:14,516 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:55:14,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:55:14,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:55:14,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:55:14,522 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:55:14,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:55:14,533 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:55:14,534 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:55:14,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:55:14,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:55:14,547 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:55:14,551 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:55:14,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:55:14,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:55:14,561 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:55:14,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:55:14,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:55:14,570 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:55:14,572 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:55:14,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:55:14,582 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:55:14,582 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:55:14,583 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:55:14,585 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:55:14,587 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:55:14,588 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:55:14,590 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:55:14,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:55:14,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:55:14,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:55:14,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:55:14,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:55:14,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:55:14,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:55:14,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:55:14,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:55:14,601 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-18 20:55:14,649 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:55:14,649 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:55:14,649 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:55:14,650 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:55:14,650 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:55:14,651 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:55:14,651 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:55:14,652 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:55:14,652 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:55:14,652 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:55:14,653 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:55:14,653 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:55:14,653 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:55:14,653 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:55:14,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:55:14,654 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 20:55:14,654 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 20:55:14,654 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 20:55:14,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:55:14,655 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 20:55:14,655 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:55:14,655 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:55:14,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:55:14,658 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:55:14,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:55:14,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:55:14,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:55:14,661 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:55:14,662 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:55:14,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:55:14,662 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_6c4062a6-d917-4683-93bb-9ba421f158c1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd4c3d19582748238e9ca587d159d6e8fc23db581cd4de03be73dc785992e03f [2022-11-18 20:55:15,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:55:15,135 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:55:15,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:55:15,143 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:55:15,144 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:55:15,146 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-races/race-1_2-join.i [2022-11-18 20:55:15,241 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/bin/uautomizer-TMbwUNV5ro/data/22e80d4b3/8ece6b37d49c43b09be3abf72fa692e4/FLAG9a793ba8b [2022-11-18 20:55:16,071 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:55:16,076 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/sv-benchmarks/c/ldv-races/race-1_2-join.i [2022-11-18 20:55:16,106 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/bin/uautomizer-TMbwUNV5ro/data/22e80d4b3/8ece6b37d49c43b09be3abf72fa692e4/FLAG9a793ba8b [2022-11-18 20:55:16,196 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/bin/uautomizer-TMbwUNV5ro/data/22e80d4b3/8ece6b37d49c43b09be3abf72fa692e4 [2022-11-18 20:55:16,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:55:16,205 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:55:16,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:55:16,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:55:16,214 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:55:16,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:55:16" (1/1) ... [2022-11-18 20:55:16,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d54950c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:16, skipping insertion in model container [2022-11-18 20:55:16,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:55:16" (1/1) ... [2022-11-18 20:55:16,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:55:16,325 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:55:17,285 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_6c4062a6-d917-4683-93bb-9ba421f158c1/sv-benchmarks/c/ldv-races/race-1_2-join.i[76153,76166] [2022-11-18 20:55:17,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:55:17,360 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:55:17,455 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_6c4062a6-d917-4683-93bb-9ba421f158c1/sv-benchmarks/c/ldv-races/race-1_2-join.i[76153,76166] [2022-11-18 20:55:17,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:55:17,646 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:55:17,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:17 WrapperNode [2022-11-18 20:55:17,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:55:17,652 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:55:17,652 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:55:17,652 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:55:17,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:17" (1/1) ... [2022-11-18 20:55:17,689 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:17" (1/1) ... [2022-11-18 20:55:17,720 INFO L138 Inliner]: procedures = 482, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 89 [2022-11-18 20:55:17,721 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:55:17,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:55:17,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:55:17,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:55:17,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:17" (1/1) ... [2022-11-18 20:55:17,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:17" (1/1) ... [2022-11-18 20:55:17,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:17" (1/1) ... [2022-11-18 20:55:17,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:17" (1/1) ... [2022-11-18 20:55:17,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:17" (1/1) ... [2022-11-18 20:55:17,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:17" (1/1) ... [2022-11-18 20:55:17,762 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:17" (1/1) ... [2022-11-18 20:55:17,764 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:17" (1/1) ... [2022-11-18 20:55:17,771 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:55:17,772 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:55:17,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:55:17,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:55:17,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:17" (1/1) ... [2022-11-18 20:55:17,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:55:17,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:55:17,814 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:55:17,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:55:17,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:55:17,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:55:17,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:55:17,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:55:17,877 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 20:55:17,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:55:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:55:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:55:17,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:55:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:55:17,879 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 20:55:17,879 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 20:55:17,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:55:17,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:55:17,881 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 20:55:18,243 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:55:18,246 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:55:18,616 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:55:18,652 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:55:18,652 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:55:18,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:55:18 BoogieIcfgContainer [2022-11-18 20:55:18,656 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:55:18,658 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:55:18,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:55:18,664 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:55:18,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:55:16" (1/3) ... [2022-11-18 20:55:18,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51b5fd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:55:18, skipping insertion in model container [2022-11-18 20:55:18,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:17" (2/3) ... [2022-11-18 20:55:18,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51b5fd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:55:18, skipping insertion in model container [2022-11-18 20:55:18,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:55:18" (3/3) ... [2022-11-18 20:55:18,680 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2022-11-18 20:55:18,709 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:55:18,709 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-11-18 20:55:18,709 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:55:18,825 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-18 20:55:18,892 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-18 20:55:18,917 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 115 places, 116 transitions, 240 flow [2022-11-18 20:55:18,928 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 115 places, 116 transitions, 240 flow [2022-11-18 20:55:18,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 115 places, 116 transitions, 240 flow [2022-11-18 20:55:19,050 INFO L130 PetriNetUnfolder]: 4/135 cut-off events. [2022-11-18 20:55:19,051 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:55:19,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 135 events. 4/135 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 225 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 81. Up to 3 conditions per place. [2022-11-18 20:55:19,060 INFO L119 LiptonReduction]: Number of co-enabled transitions 364 [2022-11-18 20:55:26,518 INFO L134 LiptonReduction]: Checked pairs total: 460 [2022-11-18 20:55:26,519 INFO L136 LiptonReduction]: Total number of compositions: 147 [2022-11-18 20:55:26,543 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 23 transitions, 54 flow [2022-11-18 20:55:26,562 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 36 states, 20 states have (on average 2.25) internal successors, (45), 35 states have internal predecessors, (45), 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 20:55:26,592 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:55:26,601 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;@3e47be64, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:55:26,601 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-11-18 20:55:26,604 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 20 states have (on average 2.25) internal successors, (45), 35 states have internal predecessors, (45), 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 20:55:26,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-18 20:55:26,610 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:55:26,611 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-18 20:55:26,612 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-18 20:55:26,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:26,622 INFO L85 PathProgramCache]: Analyzing trace with hash 464, now seen corresponding path program 1 times [2022-11-18 20:55:26,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:26,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999883952] [2022-11-18 20:55:26,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:26,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:26,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:26,899 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 20:55:26,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:26,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999883952] [2022-11-18 20:55:26,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999883952] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:26,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:26,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-18 20:55:26,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855567186] [2022-11-18 20:55:26,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:26,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:55:26,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:26,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:55:26,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:55:26,940 INFO L87 Difference]: Start difference. First operand has 36 states, 20 states have (on average 2.25) internal successors, (45), 35 states have internal predecessors, (45), 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 20:55:27,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:55:27,000 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2022-11-18 20:55:27,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:55:27,005 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 20:55:27,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:55:27,015 INFO L225 Difference]: With dead ends: 31 [2022-11-18 20:55:27,016 INFO L226 Difference]: Without dead ends: 28 [2022-11-18 20:55:27,017 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 20:55:27,025 INFO L413 NwaCegarLoop]: 3 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, 3 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 20:55:27,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:55:27,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-18 20:55:27,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-11-18 20:55:27,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.894736842105263) internal successors, (36), 27 states have internal predecessors, (36), 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 20:55:27,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2022-11-18 20:55:27,075 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 1 [2022-11-18 20:55:27,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:55:27,075 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2022-11-18 20:55:27,075 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 20:55:27,077 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2022-11-18 20:55:27,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-18 20:55:27,078 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:55:27,078 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-18 20:55:27,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:55:27,079 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-18 20:55:27,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:27,081 INFO L85 PathProgramCache]: Analyzing trace with hash 14971, now seen corresponding path program 1 times [2022-11-18 20:55:27,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:27,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061014639] [2022-11-18 20:55:27,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:27,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:27,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:27,419 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 20:55:27,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:27,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061014639] [2022-11-18 20:55:27,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061014639] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:27,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:27,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:55:27,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523978107] [2022-11-18 20:55:27,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:27,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:55:27,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:27,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:55:27,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:55:27,425 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 20:55:27,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:55:27,488 INFO L93 Difference]: Finished difference Result 26 states and 34 transitions. [2022-11-18 20:55:27,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:55:27,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-11-18 20:55:27,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:55:27,492 INFO L225 Difference]: With dead ends: 26 [2022-11-18 20:55:27,493 INFO L226 Difference]: Without dead ends: 26 [2022-11-18 20:55:27,493 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 20:55:27,494 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:55:27,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:55:27,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-18 20:55:27,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-11-18 20:55:27,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 25 states have internal predecessors, (34), 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 20:55:27,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2022-11-18 20:55:27,500 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 34 transitions. Word has length 2 [2022-11-18 20:55:27,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:55:27,501 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 34 transitions. [2022-11-18 20:55:27,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 20:55:27,501 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2022-11-18 20:55:27,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-18 20:55:27,502 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:55:27,502 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-18 20:55:27,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:55:27,503 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-18 20:55:27,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:27,503 INFO L85 PathProgramCache]: Analyzing trace with hash 463413, now seen corresponding path program 1 times [2022-11-18 20:55:27,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:27,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637698596] [2022-11-18 20:55:27,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:27,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:27,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:27,593 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 20:55:27,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:27,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637698596] [2022-11-18 20:55:27,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637698596] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:27,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:27,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:55:27,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496256039] [2022-11-18 20:55:27,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:27,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:55:27,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:27,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:55:27,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:55:27,596 INFO L87 Difference]: Start difference. First operand 26 states and 34 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 20:55:27,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:55:27,663 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions. [2022-11-18 20:55:27,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:55:27,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-11-18 20:55:27,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:55:27,665 INFO L225 Difference]: With dead ends: 25 [2022-11-18 20:55:27,665 INFO L226 Difference]: Without dead ends: 21 [2022-11-18 20:55:27,665 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 20:55:27,666 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:55:27,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 4 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:55:27,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-18 20:55:27,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-18 20:55:27,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 20 states have internal predecessors, (26), 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 20:55:27,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2022-11-18 20:55:27,671 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 26 transitions. Word has length 3 [2022-11-18 20:55:27,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:55:27,672 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 26 transitions. [2022-11-18 20:55:27,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 20:55:27,673 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2022-11-18 20:55:27,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-18 20:55:27,673 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:55:27,673 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-18 20:55:27,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:55:27,674 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-18 20:55:27,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:27,675 INFO L85 PathProgramCache]: Analyzing trace with hash 14145050, now seen corresponding path program 1 times [2022-11-18 20:55:27,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:27,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527515013] [2022-11-18 20:55:27,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:27,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:27,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:27,933 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 20:55:27,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:27,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527515013] [2022-11-18 20:55:27,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527515013] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:27,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:27,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:55:27,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318582738] [2022-11-18 20:55:27,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:27,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:55:27,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:27,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:55:27,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:55:27,937 INFO L87 Difference]: Start difference. First operand 21 states and 26 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 20:55:27,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:55:27,964 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2022-11-18 20:55:27,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:55:27,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2022-11-18 20:55:27,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:55:27,965 INFO L225 Difference]: With dead ends: 19 [2022-11-18 20:55:27,966 INFO L226 Difference]: Without dead ends: 19 [2022-11-18 20:55:27,966 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 20:55:27,967 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:55:27,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:55:27,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-18 20:55:27,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-18 20:55:27,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 18 states have internal predecessors, (23), 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 20:55:27,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2022-11-18 20:55:27,972 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 4 [2022-11-18 20:55:27,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:55:27,973 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2022-11-18 20:55:27,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 20:55:27,973 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2022-11-18 20:55:27,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-18 20:55:27,974 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:55:27,974 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-18 20:55:27,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:55:27,975 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-18 20:55:27,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:27,975 INFO L85 PathProgramCache]: Analyzing trace with hash 14145052, now seen corresponding path program 1 times [2022-11-18 20:55:27,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:27,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490870233] [2022-11-18 20:55:27,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:27,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:28,134 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 20:55:28,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:28,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490870233] [2022-11-18 20:55:28,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490870233] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:28,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:28,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:55:28,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229944273] [2022-11-18 20:55:28,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:28,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:55:28,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:28,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:55:28,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:55:28,138 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 20:55:28,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:55:28,176 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2022-11-18 20:55:28,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:55:28,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2022-11-18 20:55:28,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:55:28,178 INFO L225 Difference]: With dead ends: 17 [2022-11-18 20:55:28,178 INFO L226 Difference]: Without dead ends: 17 [2022-11-18 20:55:28,179 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 20:55:28,180 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:55:28,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:55:28,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-18 20:55:28,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-18 20:55:28,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 16 states have internal predecessors, (20), 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 20:55:28,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2022-11-18 20:55:28,184 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 4 [2022-11-18 20:55:28,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:55:28,185 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2022-11-18 20:55:28,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 20:55:28,185 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2022-11-18 20:55:28,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-18 20:55:28,186 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:55:28,186 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-18 20:55:28,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:55:28,186 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-18 20:55:28,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:28,187 INFO L85 PathProgramCache]: Analyzing trace with hash 14144378, now seen corresponding path program 1 times [2022-11-18 20:55:28,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:28,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639366681] [2022-11-18 20:55:28,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:28,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:28,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:28,291 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 20:55:28,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:28,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639366681] [2022-11-18 20:55:28,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639366681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:28,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:28,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:55:28,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902373942] [2022-11-18 20:55:28,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:28,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:55:28,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:28,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:55:28,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:55:28,294 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 20:55:28,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:55:28,373 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2022-11-18 20:55:28,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:55:28,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-11-18 20:55:28,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:55:28,375 INFO L225 Difference]: With dead ends: 22 [2022-11-18 20:55:28,375 INFO L226 Difference]: Without dead ends: 21 [2022-11-18 20:55:28,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 20:55:28,377 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:55:28,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 8 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:55:28,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-18 20:55:28,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 16. [2022-11-18 20:55:28,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 15 states have internal predecessors, (17), 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 20:55:28,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2022-11-18 20:55:28,382 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 4 [2022-11-18 20:55:28,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:55:28,382 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2022-11-18 20:55:28,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 20:55:28,383 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2022-11-18 20:55:28,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 20:55:28,384 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:55:28,384 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 20:55:28,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:55:28,384 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-18 20:55:28,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:28,385 INFO L85 PathProgramCache]: Analyzing trace with hash 438482639, now seen corresponding path program 1 times [2022-11-18 20:55:28,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:28,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499869371] [2022-11-18 20:55:28,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:28,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:55:28,420 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:55:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:55:28,464 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:55:28,464 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:55:28,466 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (11 of 12 remaining) [2022-11-18 20:55:28,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (10 of 12 remaining) [2022-11-18 20:55:28,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 12 remaining) [2022-11-18 20:55:28,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 12 remaining) [2022-11-18 20:55:28,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (7 of 12 remaining) [2022-11-18 20:55:28,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (6 of 12 remaining) [2022-11-18 20:55:28,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 12 remaining) [2022-11-18 20:55:28,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 12 remaining) [2022-11-18 20:55:28,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 12 remaining) [2022-11-18 20:55:28,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 12 remaining) [2022-11-18 20:55:28,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (1 of 12 remaining) [2022-11-18 20:55:28,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2022-11-18 20:55:28,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:55:28,476 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:28,482 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 20:55:28,482 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:55:28,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:55:28 BasicIcfg [2022-11-18 20:55:28,507 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:55:28,508 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:55:28,508 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:55:28,508 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:55:28,509 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:55:18" (3/4) ... [2022-11-18 20:55:28,513 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 20:55:28,513 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:55:28,514 INFO L158 Benchmark]: Toolchain (without parser) took 12309.09ms. Allocated memory was 119.5MB in the beginning and 218.1MB in the end (delta: 98.6MB). Free memory was 75.4MB in the beginning and 169.7MB in the end (delta: -94.3MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2022-11-18 20:55:28,515 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 119.5MB. Free memory is still 94.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:55:28,515 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1441.01ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 75.1MB in the beginning and 115.5MB in the end (delta: -40.4MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2022-11-18 20:55:28,516 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.79ms. Allocated memory is still 144.7MB. Free memory was 115.5MB in the beginning and 112.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:55:28,516 INFO L158 Benchmark]: Boogie Preprocessor took 49.00ms. Allocated memory is still 144.7MB. Free memory was 112.8MB in the beginning and 110.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:55:28,516 INFO L158 Benchmark]: RCFGBuilder took 884.25ms. Allocated memory is still 144.7MB. Free memory was 110.0MB in the beginning and 88.3MB in the end (delta: 21.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-18 20:55:28,517 INFO L158 Benchmark]: TraceAbstraction took 9848.92ms. Allocated memory was 144.7MB in the beginning and 218.1MB in the end (delta: 73.4MB). Free memory was 87.6MB in the beginning and 170.7MB in the end (delta: -83.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:55:28,517 INFO L158 Benchmark]: Witness Printer took 5.66ms. Allocated memory is still 218.1MB. Free memory is still 169.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:55:28,519 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 119.5MB. Free memory is still 94.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1441.01ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 75.1MB in the beginning and 115.5MB in the end (delta: -40.4MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.79ms. Allocated memory is still 144.7MB. Free memory was 115.5MB in the beginning and 112.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.00ms. Allocated memory is still 144.7MB. Free memory was 112.8MB in the beginning and 110.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 884.25ms. Allocated memory is still 144.7MB. Free memory was 110.0MB in the beginning and 88.3MB in the end (delta: 21.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 9848.92ms. Allocated memory was 144.7MB in the beginning and 218.1MB in the end (delta: 73.4MB). Free memory was 87.6MB in the beginning and 170.7MB in the end (delta: -83.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.66ms. Allocated memory is still 218.1MB. Free memory is still 169.7MB. 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: 7.6s, 115 PlacesBefore, 25 PlacesAfterwards, 116 TransitionsBefore, 23 TransitionsAfterwards, 364 CoEnabledTransitionPairs, 8 FixpointIterations, 97 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 6 ConcurrentYvCompositions, 3 ChoiceCompositions, 147 TotalNumberOfCompositions, 460 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 385, independent: 358, independent conditional: 0, independent unconditional: 358, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 249, independent: 238, independent conditional: 0, independent unconditional: 238, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 249, independent: 237, independent conditional: 0, independent unconditional: 237, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 12, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 54, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 385, independent: 120, independent conditional: 0, independent unconditional: 120, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 249, unknown conditional: 0, unknown unconditional: 249] , Statistics on independence cache: Total cache size (in pairs): 4, Positive cache size: 2, Positive conditional cache size: 0, Positive unconditional cache size: 2, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: 1695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1695. Possible FailurePath: [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1696] 0 pthread_t t1; [L1734] CALL 0 module_init() [L1709] 0 pdev = 1 [L1710] CALL 0 ldv_assert(pdev==1) [L1695] COND FALSE 0 !(!expression) [L1710] RET 0 ldv_assert(pdev==1) [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={3:0}, pdev=1, pthread_create(&t1, ((void *)0), thread1, ((void *)0))=-1, t1={4:0}] [L1714] 0 pdev = 2 VAL [arg={0:0}, mutex={3:0}, pdev=2, t1={4:0}] [L1702] 1 pdev = 6 [L1705] 1 return 0; [L1717] CALL 0 ldv_assert(pdev==2) [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [\old(expression)=0, \result={0:0}, arg={0:0}, arg={0:0}, expression=0, mutex={3:0}, pdev=6, t1={4:0}] - UnprovableResult [Line: 1695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1733]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1712]: 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, 121 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 9.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 104 IncrementalHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 18 mSDtfsCounter, 104 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 79 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 20:55:28,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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_6c4062a6-d917-4683-93bb-9ba421f158c1/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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_6c4062a6-d917-4683-93bb-9ba421f158c1/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-1_2-join.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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_6c4062a6-d917-4683-93bb-9ba421f158c1/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 fd4c3d19582748238e9ca587d159d6e8fc23db581cd4de03be73dc785992e03f --- 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 20:55:31,346 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:55:31,349 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:55:31,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:55:31,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:55:31,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:55:31,399 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:55:31,407 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:55:31,409 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:55:31,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:55:31,411 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:55:31,412 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:55:31,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:55:31,414 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:55:31,415 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:55:31,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:55:31,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:55:31,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:55:31,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:55:31,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:55:31,442 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:55:31,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:55:31,445 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:55:31,446 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:55:31,451 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:55:31,451 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:55:31,452 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:55:31,453 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:55:31,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:55:31,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:55:31,455 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:55:31,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:55:31,457 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:55:31,458 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:55:31,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:55:31,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:55:31,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:55:31,464 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:55:31,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:55:31,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:55:31,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:55:31,469 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-18 20:55:31,536 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:55:31,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:55:31,542 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:55:31,542 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:55:31,544 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:55:31,544 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:55:31,546 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:55:31,546 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:55:31,546 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:55:31,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:55:31,548 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:55:31,549 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:55:31,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:55:31,549 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:55:31,549 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:55:31,550 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 20:55:31,550 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 20:55:31,550 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 20:55:31,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:55:31,551 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 20:55:31,551 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 20:55:31,551 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 20:55:31,552 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:55:31,552 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:55:31,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:55:31,553 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:55:31,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:55:31,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:55:31,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:55:31,554 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:55:31,554 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 20:55:31,554 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 20:55:31,555 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 20:55:31,555 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_6c4062a6-d917-4683-93bb-9ba421f158c1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd4c3d19582748238e9ca587d159d6e8fc23db581cd4de03be73dc785992e03f [2022-11-18 20:55:32,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:55:32,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:55:32,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:55:32,088 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:55:32,091 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:55:32,094 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-races/race-1_2-join.i [2022-11-18 20:55:32,181 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/bin/uautomizer-TMbwUNV5ro/data/f1d6e42c4/128f99018ea24e1091dd2e7cbebbf5e1/FLAGcf97283a9 [2022-11-18 20:55:33,032 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:55:33,033 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/sv-benchmarks/c/ldv-races/race-1_2-join.i [2022-11-18 20:55:33,076 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/bin/uautomizer-TMbwUNV5ro/data/f1d6e42c4/128f99018ea24e1091dd2e7cbebbf5e1/FLAGcf97283a9 [2022-11-18 20:55:33,175 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/bin/uautomizer-TMbwUNV5ro/data/f1d6e42c4/128f99018ea24e1091dd2e7cbebbf5e1 [2022-11-18 20:55:33,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:55:33,184 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:55:33,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:55:33,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:55:33,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:55:33,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:55:33" (1/1) ... [2022-11-18 20:55:33,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e0eb1aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:33, skipping insertion in model container [2022-11-18 20:55:33,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:55:33" (1/1) ... [2022-11-18 20:55:33,203 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:55:33,288 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:55:34,480 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_6c4062a6-d917-4683-93bb-9ba421f158c1/sv-benchmarks/c/ldv-races/race-1_2-join.i[76153,76166] [2022-11-18 20:55:34,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:55:34,531 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:55:34,610 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_6c4062a6-d917-4683-93bb-9ba421f158c1/sv-benchmarks/c/ldv-races/race-1_2-join.i[76153,76166] [2022-11-18 20:55:34,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:55:34,856 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:55:34,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:34 WrapperNode [2022-11-18 20:55:34,857 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:55:34,859 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:55:34,859 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:55:34,860 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:55:34,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:34" (1/1) ... [2022-11-18 20:55:34,927 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:34" (1/1) ... [2022-11-18 20:55:34,958 INFO L138 Inliner]: procedures = 486, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 88 [2022-11-18 20:55:34,959 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:55:34,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:55:34,960 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:55:34,960 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:55:34,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:34" (1/1) ... [2022-11-18 20:55:34,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:34" (1/1) ... [2022-11-18 20:55:34,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:34" (1/1) ... [2022-11-18 20:55:34,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:34" (1/1) ... [2022-11-18 20:55:34,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:34" (1/1) ... [2022-11-18 20:55:34,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:34" (1/1) ... [2022-11-18 20:55:35,002 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:34" (1/1) ... [2022-11-18 20:55:35,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:34" (1/1) ... [2022-11-18 20:55:35,012 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:55:35,013 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:55:35,013 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:55:35,013 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:55:35,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:34" (1/1) ... [2022-11-18 20:55:35,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:55:35,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:55:35,052 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:55:35,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:55:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:55:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:55:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-18 20:55:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-18 20:55:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:55:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 20:55:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:55:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:55:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:55:35,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:55:35,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-18 20:55:35,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:55:35,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-18 20:55:35,115 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 20:55:35,116 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 20:55:35,117 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 20:55:35,698 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:55:35,700 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:55:36,088 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:55:36,140 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:55:36,140 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:55:36,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:55:36 BoogieIcfgContainer [2022-11-18 20:55:36,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:55:36,147 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:55:36,147 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:55:36,151 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:55:36,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:55:33" (1/3) ... [2022-11-18 20:55:36,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@277361e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:55:36, skipping insertion in model container [2022-11-18 20:55:36,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:34" (2/3) ... [2022-11-18 20:55:36,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@277361e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:55:36, skipping insertion in model container [2022-11-18 20:55:36,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:55:36" (3/3) ... [2022-11-18 20:55:36,163 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2022-11-18 20:55:36,190 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:55:36,191 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-11-18 20:55:36,191 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:55:36,283 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-18 20:55:36,346 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-18 20:55:36,369 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 115 transitions, 238 flow [2022-11-18 20:55:36,375 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 114 places, 115 transitions, 238 flow [2022-11-18 20:55:36,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 115 transitions, 238 flow [2022-11-18 20:55:36,481 INFO L130 PetriNetUnfolder]: 4/133 cut-off events. [2022-11-18 20:55:36,482 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:55:36,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 133 events. 4/133 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 225 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 80. Up to 3 conditions per place. [2022-11-18 20:55:36,490 INFO L119 LiptonReduction]: Number of co-enabled transitions 350 [2022-11-18 20:55:54,792 INFO L134 LiptonReduction]: Checked pairs total: 452 [2022-11-18 20:55:54,792 INFO L136 LiptonReduction]: Total number of compositions: 141 [2022-11-18 20:55:54,802 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 23 transitions, 54 flow [2022-11-18 20:55:54,816 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 36 states, 20 states have (on average 2.25) internal successors, (45), 35 states have internal predecessors, (45), 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 20:55:54,837 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:55:54,845 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;@48ec552d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:55:54,846 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-11-18 20:55:54,848 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 20 states have (on average 2.25) internal successors, (45), 35 states have internal predecessors, (45), 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 20:55:54,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-18 20:55:54,853 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:55:54,854 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-18 20:55:54,854 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-18 20:55:54,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:54,859 INFO L85 PathProgramCache]: Analyzing trace with hash 454, now seen corresponding path program 1 times [2022-11-18 20:55:54,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:55:54,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [554345267] [2022-11-18 20:55:54,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:54,874 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 20:55:54,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:55:54,880 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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 20:55:54,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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 20:55:55,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:55,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-18 20:55:55,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:55:55,056 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 20:55:55,057 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:55:55,057 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:55:55,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [554345267] [2022-11-18 20:55:55,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [554345267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:55,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:55,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-18 20:55:55,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127223412] [2022-11-18 20:55:55,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:55,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:55:55,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:55:55,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:55:55,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:55:55,097 INFO L87 Difference]: Start difference. First operand has 36 states, 20 states have (on average 2.25) internal successors, (45), 35 states have internal predecessors, (45), 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 20:55:55,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:55:55,180 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2022-11-18 20:55:55,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:55:55,195 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 20:55:55,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:55:55,205 INFO L225 Difference]: With dead ends: 31 [2022-11-18 20:55:55,205 INFO L226 Difference]: Without dead ends: 28 [2022-11-18 20:55:55,206 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 20:55:55,211 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:55:55,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:55:55,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-18 20:55:55,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-11-18 20:55:55,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.894736842105263) internal successors, (36), 27 states have internal predecessors, (36), 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 20:55:55,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2022-11-18 20:55:55,252 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 1 [2022-11-18 20:55:55,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:55:55,252 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2022-11-18 20:55:55,253 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 20:55:55,253 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2022-11-18 20:55:55,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-18 20:55:55,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:55:55,254 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-18 20:55:55,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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 20:55:55,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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 20:55:55,469 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-18 20:55:55,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:55,470 INFO L85 PathProgramCache]: Analyzing trace with hash 14711, now seen corresponding path program 1 times [2022-11-18 20:55:55,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:55:55,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [754213507] [2022-11-18 20:55:55,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:55,472 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 20:55:55,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:55:55,476 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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 20:55:55,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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 20:55:55,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:55,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:55:55,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:55:55,715 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 20:55:55,716 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:55:55,717 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:55:55,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [754213507] [2022-11-18 20:55:55,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [754213507] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:55,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:55,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:55:55,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421611292] [2022-11-18 20:55:55,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:55,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:55:55,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:55:55,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:55:55,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:55:55,732 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 20:55:55,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:55:55,837 INFO L93 Difference]: Finished difference Result 26 states and 34 transitions. [2022-11-18 20:55:55,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:55:55,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-11-18 20:55:55,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:55:55,840 INFO L225 Difference]: With dead ends: 26 [2022-11-18 20:55:55,840 INFO L226 Difference]: Without dead ends: 26 [2022-11-18 20:55:55,840 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 20:55:55,842 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:55:55,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:55:55,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-18 20:55:55,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-11-18 20:55:55,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 25 states have internal predecessors, (34), 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 20:55:55,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2022-11-18 20:55:55,849 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 34 transitions. Word has length 2 [2022-11-18 20:55:55,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:55:55,850 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 34 transitions. [2022-11-18 20:55:55,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 20:55:55,850 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2022-11-18 20:55:55,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-18 20:55:55,851 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:55:55,851 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-18 20:55:55,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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)] Forceful destruction successful, exit code 0 [2022-11-18 20:55:56,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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 20:55:56,075 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-18 20:55:56,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:56,076 INFO L85 PathProgramCache]: Analyzing trace with hash 455755, now seen corresponding path program 1 times [2022-11-18 20:55:56,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:55:56,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2067143376] [2022-11-18 20:55:56,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:56,080 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 20:55:56,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:55:56,082 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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 20:55:56,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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 20:55:56,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:56,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:55:56,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:55:56,234 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 20:55:56,234 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:55:56,235 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:55:56,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2067143376] [2022-11-18 20:55:56,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2067143376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:56,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:56,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:55:56,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043478898] [2022-11-18 20:55:56,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:56,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:55:56,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:55:56,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:55:56,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:55:56,238 INFO L87 Difference]: Start difference. First operand 26 states and 34 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 20:55:56,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:55:56,320 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions. [2022-11-18 20:55:56,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:55:56,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-11-18 20:55:56,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:55:56,322 INFO L225 Difference]: With dead ends: 25 [2022-11-18 20:55:56,322 INFO L226 Difference]: Without dead ends: 21 [2022-11-18 20:55:56,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 20:55:56,324 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:55:56,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 4 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:55:56,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-18 20:55:56,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-18 20:55:56,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 20 states have internal predecessors, (26), 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 20:55:56,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2022-11-18 20:55:56,329 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 26 transitions. Word has length 3 [2022-11-18 20:55:56,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:55:56,329 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 26 transitions. [2022-11-18 20:55:56,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 20:55:56,330 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2022-11-18 20:55:56,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-18 20:55:56,330 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:55:56,330 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-18 20:55:56,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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)] Forceful destruction successful, exit code 0 [2022-11-18 20:55:56,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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 20:55:56,553 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-18 20:55:56,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:56,554 INFO L85 PathProgramCache]: Analyzing trace with hash 13964339, now seen corresponding path program 1 times [2022-11-18 20:55:56,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:55:56,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [349595749] [2022-11-18 20:55:56,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:56,555 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 20:55:56,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:55:56,564 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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 20:55:56,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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 20:55:56,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:56,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 20:55:56,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:55:56,869 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 20:55:56,869 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:55:56,869 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:55:56,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [349595749] [2022-11-18 20:55:56,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [349595749] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:56,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:56,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:55:56,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719786819] [2022-11-18 20:55:56,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:56,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:55:56,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:55:56,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:55:56,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:55:56,872 INFO L87 Difference]: Start difference. First operand 21 states and 26 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 20:55:56,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:55:56,946 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2022-11-18 20:55:56,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:55:56,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2022-11-18 20:55:56,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:55:56,948 INFO L225 Difference]: With dead ends: 19 [2022-11-18 20:55:56,948 INFO L226 Difference]: Without dead ends: 19 [2022-11-18 20:55:56,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 20:55:56,950 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:55:56,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:55:56,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-18 20:55:56,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-18 20:55:56,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 18 states have internal predecessors, (23), 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 20:55:56,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2022-11-18 20:55:56,954 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 4 [2022-11-18 20:55:56,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:55:56,954 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2022-11-18 20:55:56,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 20:55:56,955 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2022-11-18 20:55:56,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-18 20:55:56,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:55:56,955 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-18 20:55:56,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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 20:55:57,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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 20:55:57,167 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-18 20:55:57,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:57,167 INFO L85 PathProgramCache]: Analyzing trace with hash 13964340, now seen corresponding path program 1 times [2022-11-18 20:55:57,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:55:57,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1754534331] [2022-11-18 20:55:57,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:57,169 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 20:55:57,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:55:57,171 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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 20:55:57,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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 20:55:57,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:57,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:55:57,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:55:57,388 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 20:55:57,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:55:57,389 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:55:57,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1754534331] [2022-11-18 20:55:57,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1754534331] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:57,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:57,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:55:57,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056995347] [2022-11-18 20:55:57,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:57,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:55:57,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:55:57,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:55:57,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:55:57,392 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 20:55:57,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:55:57,452 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2022-11-18 20:55:57,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:55:57,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2022-11-18 20:55:57,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:55:57,454 INFO L225 Difference]: With dead ends: 17 [2022-11-18 20:55:57,454 INFO L226 Difference]: Without dead ends: 17 [2022-11-18 20:55:57,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 20:55:57,455 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:55:57,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:55:57,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-18 20:55:57,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-18 20:55:57,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 16 states have internal predecessors, (20), 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 20:55:57,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2022-11-18 20:55:57,459 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 4 [2022-11-18 20:55:57,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:55:57,460 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2022-11-18 20:55:57,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 20:55:57,460 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2022-11-18 20:55:57,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-18 20:55:57,460 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:55:57,461 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-18 20:55:57,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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 20:55:57,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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 20:55:57,662 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-18 20:55:57,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:57,662 INFO L85 PathProgramCache]: Analyzing trace with hash 13963244, now seen corresponding path program 1 times [2022-11-18 20:55:57,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:55:57,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1793851480] [2022-11-18 20:55:57,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:57,664 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 20:55:57,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:55:57,665 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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 20:55:57,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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 20:55:57,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:57,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:55:57,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:55:57,829 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 20:55:57,829 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:55:57,829 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:55:57,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1793851480] [2022-11-18 20:55:57,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1793851480] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:57,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:57,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:55:57,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924291701] [2022-11-18 20:55:57,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:57,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:55:57,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:55:57,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:55:57,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:55:57,832 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 20:55:57,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:55:57,931 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2022-11-18 20:55:57,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:55:57,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-11-18 20:55:57,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:55:57,934 INFO L225 Difference]: With dead ends: 22 [2022-11-18 20:55:57,934 INFO L226 Difference]: Without dead ends: 21 [2022-11-18 20:55:57,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 20:55:57,935 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:55:57,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 8 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:55:57,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-18 20:55:57,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 16. [2022-11-18 20:55:57,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 15 states have internal predecessors, (17), 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 20:55:57,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2022-11-18 20:55:57,938 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 4 [2022-11-18 20:55:57,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:55:57,939 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2022-11-18 20:55:57,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 20:55:57,939 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2022-11-18 20:55:57,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 20:55:57,939 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:55:57,943 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 20:55:57,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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 20:55:58,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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 20:55:58,155 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-18 20:55:58,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:58,155 INFO L85 PathProgramCache]: Analyzing trace with hash 432867422, now seen corresponding path program 1 times [2022-11-18 20:55:58,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:55:58,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [103262933] [2022-11-18 20:55:58,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:58,157 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 20:55:58,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:55:58,158 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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 20:55:58,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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 (8)] Waiting until timeout for monitored process [2022-11-18 20:55:58,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:55:58,326 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:55:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:55:58,405 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-18 20:55:58,405 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:55:58,406 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (11 of 12 remaining) [2022-11-18 20:55:58,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (10 of 12 remaining) [2022-11-18 20:55:58,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 12 remaining) [2022-11-18 20:55:58,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 12 remaining) [2022-11-18 20:55:58,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (7 of 12 remaining) [2022-11-18 20:55:58,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (6 of 12 remaining) [2022-11-18 20:55:58,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 12 remaining) [2022-11-18 20:55:58,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 12 remaining) [2022-11-18 20:55:58,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 12 remaining) [2022-11-18 20:55:58,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 12 remaining) [2022-11-18 20:55:58,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (1 of 12 remaining) [2022-11-18 20:55:58,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2022-11-18 20:55:58,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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 (8)] Forceful destruction successful, exit code 0 [2022-11-18 20:55:58,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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 20:55:58,614 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:58,619 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 20:55:58,619 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:55:58,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:55:58 BasicIcfg [2022-11-18 20:55:58,662 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:55:58,663 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:55:58,663 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:55:58,663 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:55:58,664 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:55:36" (3/4) ... [2022-11-18 20:55:58,668 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 20:55:58,668 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:55:58,669 INFO L158 Benchmark]: Toolchain (without parser) took 25484.34ms. Allocated memory was 67.1MB in the beginning and 111.1MB in the end (delta: 44.0MB). Free memory was 45.1MB in the beginning and 52.9MB in the end (delta: -7.9MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2022-11-18 20:55:58,669 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 67.1MB. Free memory was 48.6MB in the beginning and 48.6MB in the end (delta: 43.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:55:58,670 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1672.43ms. Allocated memory was 67.1MB in the beginning and 90.2MB in the end (delta: 23.1MB). Free memory was 44.9MB in the beginning and 39.7MB in the end (delta: 5.1MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2022-11-18 20:55:58,670 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.66ms. Allocated memory is still 90.2MB. Free memory was 39.7MB in the beginning and 65.0MB in the end (delta: -25.2MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2022-11-18 20:55:58,674 INFO L158 Benchmark]: Boogie Preprocessor took 52.74ms. Allocated memory is still 90.2MB. Free memory was 65.0MB in the beginning and 62.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:55:58,674 INFO L158 Benchmark]: RCFGBuilder took 1130.58ms. Allocated memory is still 90.2MB. Free memory was 61.7MB in the beginning and 62.3MB in the end (delta: -533.5kB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-18 20:55:58,675 INFO L158 Benchmark]: TraceAbstraction took 22514.92ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 61.7MB in the beginning and 53.9MB in the end (delta: 7.8MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2022-11-18 20:55:58,675 INFO L158 Benchmark]: Witness Printer took 5.14ms. Allocated memory is still 111.1MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:55:58,678 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 67.1MB. Free memory was 48.6MB in the beginning and 48.6MB in the end (delta: 43.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1672.43ms. Allocated memory was 67.1MB in the beginning and 90.2MB in the end (delta: 23.1MB). Free memory was 44.9MB in the beginning and 39.7MB in the end (delta: 5.1MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 99.66ms. Allocated memory is still 90.2MB. Free memory was 39.7MB in the beginning and 65.0MB in the end (delta: -25.2MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.74ms. Allocated memory is still 90.2MB. Free memory was 65.0MB in the beginning and 62.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1130.58ms. Allocated memory is still 90.2MB. Free memory was 61.7MB in the beginning and 62.3MB in the end (delta: -533.5kB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 22514.92ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 61.7MB in the beginning and 53.9MB in the end (delta: 7.8MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. * Witness Printer took 5.14ms. Allocated memory is still 111.1MB. Free memory is still 52.9MB. 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: 18.4s, 114 PlacesBefore, 25 PlacesAfterwards, 115 TransitionsBefore, 23 TransitionsAfterwards, 350 CoEnabledTransitionPairs, 8 FixpointIterations, 96 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 9 TrivialYvCompositions, 4 ConcurrentYvCompositions, 3 ChoiceCompositions, 141 TotalNumberOfCompositions, 452 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 371, independent: 344, independent conditional: 0, independent unconditional: 344, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 238, independent: 227, independent conditional: 0, independent unconditional: 227, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 238, independent: 226, independent conditional: 0, independent unconditional: 226, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 12, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 58, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 371, independent: 117, independent conditional: 0, independent unconditional: 117, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 238, unknown conditional: 0, unknown unconditional: 238] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 1, Positive conditional cache size: 0, Positive unconditional cache size: 1, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: 1695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1695. Possible FailurePath: [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1696] 0 pthread_t t1; [L1734] CALL 0 module_init() [L1709] 0 pdev = 1 [L1710] CALL 0 ldv_assert(pdev==1) [L1695] COND FALSE 0 !(!expression) [L1710] RET 0 ldv_assert(pdev==1) [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={3:0}, pdev=1, pthread_create(&t1, ((void *)0), thread1, ((void *)0))=-1, t1={4:0}] [L1714] 0 pdev = 2 VAL [arg={0:0}, mutex={3:0}, pdev=2, t1={4:0}] [L1702] 1 pdev = 6 [L1705] 1 return 0; [L1717] CALL 0 ldv_assert(pdev==2) [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [\old(expression)=0, \result={0:0}, arg={0:0}, arg={0:0}, expression=0, mutex={3:0}, pdev=6, t1={4:0}] - UnprovableResult [Line: 1695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1733]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1712]: 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, 120 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 22.3s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 18.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 104 IncrementalHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 18 mSDtfsCounter, 104 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 1 NumberOfNonLiveVariables, 272 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 20:55:58,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4062a6-d917-4683-93bb-9ba421f158c1/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