./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/dll-optional-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48630d8-bde3-484e-abd5-c4254b633670/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48630d8-bde3-484e-abd5-c4254b633670/bin/ukojak-Rh5K9KB4LI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48630d8-bde3-484e-abd5-c4254b633670/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48630d8-bde3-484e-abd5-c4254b633670/bin/ukojak-Rh5K9KB4LI/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-optional-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48630d8-bde3-484e-abd5-c4254b633670/bin/ukojak-Rh5K9KB4LI/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48630d8-bde3-484e-abd5-c4254b633670/bin/ukojak-Rh5K9KB4LI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8287e6117d458104c3f33a0e7a83f771b50c3974e23296edc32c92f0b8cae546 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 03:19:27,591 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 03:19:27,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 03:19:27,655 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 03:19:27,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 03:19:27,661 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 03:19:27,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 03:19:27,668 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 03:19:27,671 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 03:19:27,676 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 03:19:27,677 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 03:19:27,679 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 03:19:27,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 03:19:27,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 03:19:27,685 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 03:19:27,690 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 03:19:27,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 03:19:27,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 03:19:27,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 03:19:27,706 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 03:19:27,708 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 03:19:27,709 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 03:19:27,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 03:19:27,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 03:19:27,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 03:19:27,718 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 03:19:27,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 03:19:27,721 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 03:19:27,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 03:19:27,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 03:19:27,724 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 03:19:27,725 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 03:19:27,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 03:19:27,729 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 03:19:27,730 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 03:19:27,731 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 03:19:27,732 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 03:19:27,732 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 03:19:27,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 03:19:27,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 03:19:27,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 03:19:27,736 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48630d8-bde3-484e-abd5-c4254b633670/bin/ukojak-Rh5K9KB4LI/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2021-10-29 03:19:27,780 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 03:19:27,780 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 03:19:27,782 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 03:19:27,782 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 03:19:27,782 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 03:19:27,783 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 03:19:27,783 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 03:19:27,783 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 03:19:27,783 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 03:19:27,784 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 03:19:27,785 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 03:19:27,785 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 03:19:27,785 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 03:19:27,785 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 03:19:27,785 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 03:19:27,786 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 03:19:27,786 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 03:19:27,786 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 03:19:27,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:19:27,787 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 03:19:27,787 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 03:19:27,787 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 03:19:27,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 03:19:27,788 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_e48630d8-bde3-484e-abd5-c4254b633670/bin/ukojak-Rh5K9KB4LI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48630d8-bde3-484e-abd5-c4254b633670/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8287e6117d458104c3f33a0e7a83f771b50c3974e23296edc32c92f0b8cae546 [2021-10-29 03:19:28,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 03:19:28,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 03:19:28,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 03:19:28,109 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 03:19:28,110 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 03:19:28,111 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48630d8-bde3-484e-abd5-c4254b633670/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/forester-heap/dll-optional-2.i [2021-10-29 03:19:28,192 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48630d8-bde3-484e-abd5-c4254b633670/bin/ukojak-Rh5K9KB4LI/data/035274e05/6f9b09774f2e48c58a07aa92918ad9ed/FLAG6b0a10374 [2021-10-29 03:19:28,870 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 03:19:28,870 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48630d8-bde3-484e-abd5-c4254b633670/sv-benchmarks/c/forester-heap/dll-optional-2.i [2021-10-29 03:19:28,881 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48630d8-bde3-484e-abd5-c4254b633670/bin/ukojak-Rh5K9KB4LI/data/035274e05/6f9b09774f2e48c58a07aa92918ad9ed/FLAG6b0a10374 [2021-10-29 03:19:29,113 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48630d8-bde3-484e-abd5-c4254b633670/bin/ukojak-Rh5K9KB4LI/data/035274e05/6f9b09774f2e48c58a07aa92918ad9ed [2021-10-29 03:19:29,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 03:19:29,118 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 03:19:29,123 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 03:19:29,123 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 03:19:29,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 03:19:29,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:19:29" (1/1) ... [2021-10-29 03:19:29,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7511c9fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:19:29, skipping insertion in model container [2021-10-29 03:19:29,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:19:29" (1/1) ... [2021-10-29 03:19:29,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 03:19:29,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 03:19:29,478 WARN L228 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_e48630d8-bde3-484e-abd5-c4254b633670/sv-benchmarks/c/forester-heap/dll-optional-2.i[22706,22719] [2021-10-29 03:19:29,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:19:29,506 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 03:19:29,578 WARN L228 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_e48630d8-bde3-484e-abd5-c4254b633670/sv-benchmarks/c/forester-heap/dll-optional-2.i[22706,22719] [2021-10-29 03:19:29,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:19:29,621 INFO L208 MainTranslator]: Completed translation [2021-10-29 03:19:29,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:19:29 WrapperNode [2021-10-29 03:19:29,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 03:19:29,623 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 03:19:29,623 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 03:19:29,623 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 03:19:29,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:19:29" (1/1) ... [2021-10-29 03:19:29,664 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:19:29" (1/1) ... [2021-10-29 03:19:29,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 03:19:29,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 03:19:29,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 03:19:29,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 03:19:29,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:19:29" (1/1) ... [2021-10-29 03:19:29,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:19:29" (1/1) ... [2021-10-29 03:19:29,710 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:19:29" (1/1) ... [2021-10-29 03:19:29,710 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:19:29" (1/1) ... [2021-10-29 03:19:29,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:19:29" (1/1) ... [2021-10-29 03:19:29,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:19:29" (1/1) ... [2021-10-29 03:19:29,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:19:29" (1/1) ... [2021-10-29 03:19:29,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 03:19:29,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 03:19:29,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 03:19:29,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 03:19:29,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:19:29" (1/1) ... [2021-10-29 03:19:29,739 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:19:29,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48630d8-bde3-484e-abd5-c4254b633670/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 03:19:29,768 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48630d8-bde3-484e-abd5-c4254b633670/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 03:19:29,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48630d8-bde3-484e-abd5-c4254b633670/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 03:19:29,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 03:19:29,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 03:19:29,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 03:19:29,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-29 03:19:29,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 03:19:29,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-29 03:19:29,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 03:19:29,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 03:19:29,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 03:19:29,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 03:19:30,695 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 03:19:30,697 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-29 03:19:30,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:19:30 BoogieIcfgContainer [2021-10-29 03:19:30,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 03:19:30,704 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 03:19:30,705 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 03:19:30,716 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 03:19:30,716 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:19:30" (1/1) ... [2021-10-29 03:19:30,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 03:19:30,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:30,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 119 states and 131 transitions. [2021-10-29 03:19:30,780 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 131 transitions. [2021-10-29 03:19:30,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-29 03:19:30,783 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:30,784 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:30,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:30,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:30,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:30,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 118 states and 130 transitions. [2021-10-29 03:19:30,996 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 130 transitions. [2021-10-29 03:19:30,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-29 03:19:30,996 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:30,997 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:31,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:31,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:31,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:31,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 117 states and 129 transitions. [2021-10-29 03:19:31,189 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 129 transitions. [2021-10-29 03:19:31,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-29 03:19:31,191 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:31,192 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:31,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:31,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:31,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:31,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 116 states and 128 transitions. [2021-10-29 03:19:31,266 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 128 transitions. [2021-10-29 03:19:31,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-29 03:19:31,266 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:31,267 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:31,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:31,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:31,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:31,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 115 states and 127 transitions. [2021-10-29 03:19:31,332 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 127 transitions. [2021-10-29 03:19:31,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 03:19:31,333 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:31,333 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:31,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:31,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:31,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 114 states and 126 transitions. [2021-10-29 03:19:31,381 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 126 transitions. [2021-10-29 03:19:31,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 03:19:31,381 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:31,382 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:31,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:31,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:31,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 113 states and 125 transitions. [2021-10-29 03:19:31,480 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 125 transitions. [2021-10-29 03:19:31,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 03:19:31,480 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:31,482 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:31,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:31,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:31,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:31,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 112 states and 124 transitions. [2021-10-29 03:19:31,564 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 124 transitions. [2021-10-29 03:19:31,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 03:19:31,565 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:31,565 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:31,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:31,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:31,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:31,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 111 states and 123 transitions. [2021-10-29 03:19:31,673 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 123 transitions. [2021-10-29 03:19:31,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 03:19:31,674 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:31,674 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:31,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:31,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:31,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:31,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 110 states and 122 transitions. [2021-10-29 03:19:31,716 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 122 transitions. [2021-10-29 03:19:31,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 03:19:31,717 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:31,717 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:31,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:31,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:31,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:31,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 109 states and 121 transitions. [2021-10-29 03:19:31,760 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 121 transitions. [2021-10-29 03:19:31,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 03:19:31,760 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:31,761 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:31,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:31,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:31,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:31,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 108 states and 120 transitions. [2021-10-29 03:19:31,790 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 120 transitions. [2021-10-29 03:19:31,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 03:19:31,790 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:31,790 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:31,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:31,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:31,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:31,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 107 states and 119 transitions. [2021-10-29 03:19:31,827 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 119 transitions. [2021-10-29 03:19:31,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 03:19:31,827 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:31,828 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:31,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:31,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:31,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 106 states and 118 transitions. [2021-10-29 03:19:31,861 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 118 transitions. [2021-10-29 03:19:31,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 03:19:31,862 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:31,862 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:31,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:31,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:32,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:32,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 105 states and 117 transitions. [2021-10-29 03:19:32,007 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 117 transitions. [2021-10-29 03:19:32,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 03:19:32,008 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:32,008 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:32,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:32,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:32,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:32,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 104 states and 116 transitions. [2021-10-29 03:19:32,040 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 116 transitions. [2021-10-29 03:19:32,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 03:19:32,041 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:32,041 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:32,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:32,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:32,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:32,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 103 states and 115 transitions. [2021-10-29 03:19:32,211 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 115 transitions. [2021-10-29 03:19:32,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 03:19:32,212 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:32,212 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:32,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:32,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:32,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:32,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 102 states and 114 transitions. [2021-10-29 03:19:32,268 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 114 transitions. [2021-10-29 03:19:32,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 03:19:32,268 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:32,269 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:32,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:32,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:32,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:32,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 101 states and 113 transitions. [2021-10-29 03:19:32,341 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 113 transitions. [2021-10-29 03:19:32,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 03:19:32,342 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:32,342 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:32,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:32,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:32,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:32,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 100 states and 112 transitions. [2021-10-29 03:19:32,676 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 112 transitions. [2021-10-29 03:19:32,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 03:19:32,676 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:32,677 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:32,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:32,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:33,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:33,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 99 states and 111 transitions. [2021-10-29 03:19:33,416 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2021-10-29 03:19:33,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 03:19:33,418 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:33,419 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:33,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:33,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:33,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:33,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 103 states and 118 transitions. [2021-10-29 03:19:33,545 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 118 transitions. [2021-10-29 03:19:33,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 03:19:33,545 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:33,546 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:33,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:33,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:33,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:33,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 107 states and 129 transitions. [2021-10-29 03:19:33,948 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 129 transitions. [2021-10-29 03:19:33,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 03:19:33,949 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:33,949 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:33,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:33,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:34,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:34,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 107 states and 128 transitions. [2021-10-29 03:19:34,016 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 128 transitions. [2021-10-29 03:19:34,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 03:19:34,017 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:34,017 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:34,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:34,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:34,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:34,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 110 states and 135 transitions. [2021-10-29 03:19:34,896 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 135 transitions. [2021-10-29 03:19:34,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 03:19:34,897 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:34,902 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:34,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:34,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:35,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:35,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 112 states and 140 transitions. [2021-10-29 03:19:35,125 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 140 transitions. [2021-10-29 03:19:35,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 03:19:35,126 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:35,126 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:35,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:35,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:35,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:35,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 111 states and 138 transitions. [2021-10-29 03:19:35,378 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 138 transitions. [2021-10-29 03:19:35,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 03:19:35,379 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:35,379 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:35,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:35,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:35,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:35,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 110 states and 137 transitions. [2021-10-29 03:19:35,419 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 137 transitions. [2021-10-29 03:19:35,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 03:19:35,420 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:35,420 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:35,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:35,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:35,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:35,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 111 states and 139 transitions. [2021-10-29 03:19:35,845 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 139 transitions. [2021-10-29 03:19:35,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 03:19:35,845 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:35,845 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:35,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:35,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:36,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:36,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 116 states and 152 transitions. [2021-10-29 03:19:36,066 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 152 transitions. [2021-10-29 03:19:36,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 03:19:36,067 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:36,071 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:36,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:36,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:36,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:36,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 121 states and 167 transitions. [2021-10-29 03:19:36,350 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 167 transitions. [2021-10-29 03:19:36,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 03:19:36,351 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:36,351 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:36,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:36,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:37,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:37,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 123 states and 172 transitions. [2021-10-29 03:19:37,228 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 172 transitions. [2021-10-29 03:19:37,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 03:19:37,228 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:37,228 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:37,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:37,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:38,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:38,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 125 states and 177 transitions. [2021-10-29 03:19:38,644 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 177 transitions. [2021-10-29 03:19:38,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 03:19:38,645 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:38,645 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:38,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:38,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:38,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:38,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 127 states and 182 transitions. [2021-10-29 03:19:38,951 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 182 transitions. [2021-10-29 03:19:38,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 03:19:38,952 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:38,952 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:38,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:39,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:40,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:40,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 128 states and 185 transitions. [2021-10-29 03:19:40,640 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 185 transitions. [2021-10-29 03:19:40,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 03:19:40,640 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:40,640 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:40,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:42,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:42,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 133 states and 201 transitions. [2021-10-29 03:19:42,019 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 201 transitions. [2021-10-29 03:19:42,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 03:19:42,019 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:42,019 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:42,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:42,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:42,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:42,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 134 states and 203 transitions. [2021-10-29 03:19:42,347 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 203 transitions. [2021-10-29 03:19:42,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 03:19:42,347 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:42,348 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:42,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:42,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:42,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 136 states and 206 transitions. [2021-10-29 03:19:42,762 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 206 transitions. [2021-10-29 03:19:42,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 03:19:42,762 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:42,762 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:42,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:42,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:42,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:42,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 136 states and 205 transitions. [2021-10-29 03:19:42,801 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 205 transitions. [2021-10-29 03:19:42,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 03:19:42,802 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:42,802 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:42,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:42,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:43,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:43,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 135 states and 203 transitions. [2021-10-29 03:19:43,913 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 203 transitions. [2021-10-29 03:19:43,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 03:19:43,913 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:43,913 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:43,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:43,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:43,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:43,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 134 states and 202 transitions. [2021-10-29 03:19:43,946 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 202 transitions. [2021-10-29 03:19:43,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 03:19:43,947 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:43,947 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:43,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:44,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:44,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:44,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 136 states and 206 transitions. [2021-10-29 03:19:44,511 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 206 transitions. [2021-10-29 03:19:44,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 03:19:44,511 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:44,511 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:44,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:44,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:46,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:46,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 141 states and 214 transitions. [2021-10-29 03:19:46,601 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 214 transitions. [2021-10-29 03:19:46,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 03:19:46,601 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:46,601 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:46,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:19:47,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:19:48,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:19:48,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 143 states and 219 transitions. [2021-10-29 03:19:48,232 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 219 transitions. [2021-10-29 03:19:48,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 03:19:48,232 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:19:48,233 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:19:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:19:48,242 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:19:48,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:19:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:19:48,317 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:19:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:19:48,384 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 44 iterations. [2021-10-29 03:19:48,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 03:19:48 ImpRootNode [2021-10-29 03:19:48,446 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 03:19:48,447 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 03:19:48,447 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 03:19:48,447 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 03:19:48,448 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:19:30" (3/4) ... [2021-10-29 03:19:48,458 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 03:19:48,557 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48630d8-bde3-484e-abd5-c4254b633670/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 03:19:48,557 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 03:19:48,559 INFO L168 Benchmark]: Toolchain (without parser) took 19439.31 ms. Allocated memory was 90.2 MB in the beginning and 151.0 MB in the end (delta: 60.8 MB). Free memory was 67.6 MB in the beginning and 90.5 MB in the end (delta: -22.9 MB). Peak memory consumption was 37.3 MB. Max. memory is 16.1 GB. [2021-10-29 03:19:48,559 INFO L168 Benchmark]: CDTParser took 0.63 ms. Allocated memory is still 90.2 MB. Free memory is still 66.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:19:48,560 INFO L168 Benchmark]: CACSL2BoogieTranslator took 499.61 ms. Allocated memory is still 90.2 MB. Free memory was 67.4 MB in the beginning and 57.6 MB in the end (delta: 9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 03:19:48,561 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.68 ms. Allocated memory is still 90.2 MB. Free memory was 57.6 MB in the beginning and 55.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:19:48,561 INFO L168 Benchmark]: Boogie Preprocessor took 33.25 ms. Allocated memory is still 90.2 MB. Free memory was 55.4 MB in the beginning and 53.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:19:48,562 INFO L168 Benchmark]: RCFGBuilder took 973.32 ms. Allocated memory is still 90.2 MB. Free memory was 53.7 MB in the beginning and 62.8 MB in the end (delta: -9.1 MB). Peak memory consumption was 30.5 MB. Max. memory is 16.1 GB. [2021-10-29 03:19:48,563 INFO L168 Benchmark]: CodeCheck took 17741.79 ms. Allocated memory was 90.2 MB in the beginning and 151.0 MB in the end (delta: 60.8 MB). Free memory was 62.8 MB in the beginning and 92.6 MB in the end (delta: -29.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2021-10-29 03:19:48,564 INFO L168 Benchmark]: Witness Printer took 110.17 ms. Allocated memory is still 151.0 MB. Free memory was 92.6 MB in the beginning and 90.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:19:48,568 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 119 locations, 66 error locations. Started 1 CEGAR loops. OverallTime: 17.6s, OverallIterations: 44, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 45157456 SDtfs, -1443775646 SDslu, 40601856 SDs, 0 SdLazy, 837601848 SolverSat, -1115299666 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3415 GetRequests, 3123 SyntacticMatches, 64 SemanticMatches, 228 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19743 ImplicationChecksByTransitivity, 14.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 434 NumberOfCodeBlocks, 434 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 375 ConstructedInterpolants, 0 QuantifiedInterpolants, 2035 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 43 InterpolantComputations, 43 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 1009]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L997] SLL* head = malloc(sizeof(SLL)); [L998] head->next = ((void*)0) [L999] head->prev = ((void*)0) [L1000] COND FALSE !(__VERIFIER_nondet_int()) [L1000] COND TRUE __VERIFIER_nondet_int() [L1000] head->data = 1 [L1000] head->opt = head [L1001] SLL* x = head; [L1003] COND FALSE !(__VERIFIER_nondet_int()) [L1006] x = head [L1007] COND TRUE x != ((void*)0) [L1009] EXPR x->data [L1009] EXPR x->data == 2 && x->opt == x [L1009] COND TRUE !(x->data == 2 && x->opt == x) [L1009] reach_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63 ms. Allocated memory is still 90.2 MB. Free memory is still 66.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 499.61 ms. Allocated memory is still 90.2 MB. Free memory was 67.4 MB in the beginning and 57.6 MB in the end (delta: 9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.68 ms. Allocated memory is still 90.2 MB. Free memory was 57.6 MB in the beginning and 55.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.25 ms. Allocated memory is still 90.2 MB. Free memory was 55.4 MB in the beginning and 53.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 973.32 ms. Allocated memory is still 90.2 MB. Free memory was 53.7 MB in the beginning and 62.8 MB in the end (delta: -9.1 MB). Peak memory consumption was 30.5 MB. Max. memory is 16.1 GB. * CodeCheck took 17741.79 ms. Allocated memory was 90.2 MB in the beginning and 151.0 MB in the end (delta: 60.8 MB). Free memory was 62.8 MB in the beginning and 92.6 MB in the end (delta: -29.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * Witness Printer took 110.17 ms. Allocated memory is still 151.0 MB. Free memory was 92.6 MB in the beginning and 90.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! [2021-10-29 03:19:48,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48630d8-bde3-484e-abd5-c4254b633670/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...